Electronic device and sound pickup apparatus

Abstract

This application provides an electronic device and a sound pickup apparatus. The electronic device has an exterior surface, the exterior surface has a first sound pickup port and a plurality of second sound pickup ports spaced from each other, and each second sound pickup port is spaced from the first sound pickup port. A microphone, a first sound channel, and a plurality of second sound channels are disposed inside the electronic device, the first sound channel communicates with the first sound pickup port and a first chamber of the microphone, the plurality of second sound channels are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports, the second sound channel communicates with a second chamber of the microphone, and the first chamber of the microphone and the second chamber of the microphone are respectively located on two sides of a diaphragm of the microphone. A plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports and the first sound pickup port. A vector obtained by adding the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone. The microphone of the electronic device can better receive a sound from the direction of sensitivity of the microphone, and the microphone can implement directional sound pickup.

Description

[0001] This application claims priority to Chinese Patent Application No. 202410208269.2, filed with the China National Intellectual Property Administration on February 22, 2024, and entitled "ELECTRONIC DEVICE AND SOUND PICKUP APPARATUS", which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the field of acoustic-to-electric conversion technologies, and in particular, to an electronic device and a sound pickup apparatus.BACKGROUND

[0003] Currently, a directional microphone on the market mainly uses a single microphone and two sound pickup ports to implement directional sound pickup. The directional microphone uses a pressure gradient generated by a sound change between the two sound pickup ports to cause a diaphragm to be deformed under sound pressure, to implement sound pickup. A direction of sensitivity (Direction of Sensitivity) of the directional microphone is determined by a direction of a connection line between the two sound pickup ports. If an electronic device cannot be provided with two sound pickup ports in a target direction due to a structural limitation of the electronic device, the electronic device cannot implement directional sound pickup in the target direction.SUMMARY

[0004] This application provides an electronic device and a sound pickup apparatus. A first sound pickup port and a plurality of second sound pickup ports spaced from each other are provided on an outer surface of the electronic device, the second sound pickup port is spaced from the first sound pickup port, the first sound pickup port communicates with a first chamber of a microphone, the plurality of second sound pickup ports communicate with a second chamber of the microphone, and a direction of sensitivity of the microphone may be determined by performing vector superposition on directions of connection lines between the plurality of second sound pickup ports and the first sound pickup port. In this way, for an electronic device that cannot be provided with a sound pickup port in a target direction, the electronic device may be provided with a plurality of second sound pickup ports in another direction, to implement directional sound pickup of a microphone in the target direction.

[0005] According to a first aspect, an embodiment of this application provides an electronic device. The electronic device has an exterior surface, the exterior surface has a first sound pickup port and a plurality of second sound pickup ports spaced from each other, and each second sound pickup port is spaced from the first sound pickup port. A microphone, a first sound channel, and a plurality of second sound channels are disposed inside the electronic device, the first sound channel communicates with the first sound pickup port and a first chamber of the microphone, the plurality of second sound channels are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports, the second sound channel communicates with a second chamber of the microphone, and the first chamber of the microphone and the second chamber of the microphone are respectively located on two sides of a diaphragm of the microphone.

[0006] In this application, the first sound pickup port and the plurality of second sound pickup ports are provided on the exterior surface of the electronic device, the first sound pickup port communicates with the first chamber of the microphone, and the plurality of second sound pickup ports communicate with the second chamber of the microphone. Therefore, a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports and the first sound pickup port. A vector obtained by adding the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone. The microphone of the electronic device can better receive a sound from the direction of sensitivity of the microphone, in other words, the microphone can implement directional sound pickup, so that the electronic device can implement directional sound pickup.

[0007] In a possible implementation, the plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports and the first sound pickup port, a direction of each sound pickup vector is from a corresponding second sound pickup port to the first sound pickup port, a magnitude of each sound pickup vector is positively correlated with a length of a path from the corresponding second sound pickup port to the first sound pickup port, and a sum of the plurality of sound pickup vectors is consistent with the direction of sensitivity of the microphone.

[0008] In this implementation, the microphone may adjust a position relationship between the plurality of second sound pickup ports and the first sound pickup port, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone.

[0009] In a possible implementation, a converged sound channel is further disposed inside the electronic device, and the converged sound channel communicates with the plurality of second sound channels and the second chamber of the microphone. The electronic device further includes an acoustic resistance mesh, and the acoustic resistance mesh is disposed in the converged sound channel.

[0010] In this implementation, the converged sound channel is disposed in the electronic device, so that the plurality of second sound channels may communicate with the second chamber of the microphone through the converged sound channel. The microphone needs to be provided with only one second sound pickup hole to simultaneously communicate with the plurality of second sound channels. A manner in which the plurality of second sound channels communicate with the second chamber of the microphone is simple and convenient. In addition, a manufacturing process of the microphone can be simplified. The acoustic resistance mesh is disposed in the converged sound channel, so that an amplitude value and a phase of sound pressure that is acted on the other side of the diaphragm by a sound wave entering the converged sound channel from the plurality of second sound pickup ports can be changed. A damping factor of the acoustic resistance mesh is adjusted, so that the microphone may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility, enabling the microphone to obtain a good directionality, and improve its directional sound pickup effect.

[0011] In a possible implementation, the electronic device is a pen-type device. The exterior surface includes an end face and a peripheral side face connected to a periphery of the end face, the end face intersects an axis of the electronic device, the peripheral side face is disposed around the axis of the electronic device, the microphone is located on an inner side of the peripheral side face, the first sound pickup port is located on the end face, and the plurality of second sound pickup ports are located on the peripheral side face.

[0012] In this implementation, the plurality of sound pickup vectors formed between the plurality of second sound pickup ports and the first sound pickup port have components in a direction along the axis of the electronic device, components of the plurality of sound pickup vectors in a direction parallel to the axis of the electronic device may be superimposed, and at least a part of components of the plurality of sound pickup vectors in a direction perpendicular to the axis of the electronic device may cancel each other, so that the sum of the plurality of sound pickup vectors may be parallel to the axis of the electronic device or be at an acute angle or an obtuse angle with the axis of the electronic device. In other words, the direction of sensitivity of the microphone may be parallel to the axis of the electronic device, or may be at an acute angle or an obtuse angle with the axis of the electronic device. In addition, positions of the first sound pickup port and the plurality of second sound pickup ports may fit a shape of the pen-type device. When the pen-type device is used for sound pickup, the pen-type device may match different holding habits of a user, to better receive a voice of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0013] In a possible implementation, the direction of sensitivity of the microphone is parallel to the axis of the electronic device.

[0014] In this implementation, the direction of sensitivity of the microphone is parallel to the axis of the electronic device. In this case, the microphone can better receive a sound from the direction parallel to the axis of the electronic device. In other words, the microphone can implement directional sound pickup. In addition, the pen-type device can better match the holding habit of the user, so that the direction of sensitivity of the microphone can face a mouth of the user. In this way, the pen-type device can better receive the voice of the user and effectively shield the impact of the ambient noise, thereby improving user experience.

[0015] In a possible implementation, the plurality of second sound pickup ports are coplanar, and a plane on which the plurality of second sound pickup ports are located is perpendicular to the axis of the electronic device.

[0016] In this implementation, when the plurality of second sound pickup ports are coplanar, and the plane on which the plurality of second sound pickup ports are located is perpendicular to the axis of the electronic device, the position of the first sound pickup port may be adjusted, so that the plurality of second sound pickup ports can flexibly fit the first sound pickup port, and the direction of sensitivity of the microphone can be flexibly adjusted to be parallel to the axis of the electronic device, or be at an acute angle or an obtuse angle with the axis of the electronic device.

[0017] In a possible implementation, a center of the first sound pickup port is located on the axis of the electronic device, and the plurality of second sound pickup ports are centrosymmetrically distributed relative to the axis of the electronic device.

[0018] In this implementation, lengths of acoustic paths between the plurality of second sound pickup ports and the first sound pickup port are equal. The plurality of sound pickup vectors are centrosymmetrically distributed relative to the axis of the electronic device and have a same magnitude. The components that are of the plurality of sound pickup vectors and that are along the axis of the electronic device may be superimposed, and the components that are of the plurality of sound pickup vectors and that are perpendicular to the axis of the electronic device may completely cancel each other. In this case, a vector obtained by superimposing the plurality of sound pickup vectors is along the axis of the electronic device. The microphone may implement directional sound pickup in the direction along the axis of the electronic device.

[0019] In a possible implementation, there are two or three second sound pickup ports, and a plane on which all the second sound pickup ports are located is at an acute angle or an obtuse angle with the axis of the electronic device; or there are more than three second sound pickup ports, and at least one second sound pickup port is not coplanar with another second sound pickup port.

[0020] In this implementation, the components that are of the plurality of sound pickup vectors and that are perpendicular to the axis of the electronic device cannot completely cancel each other, and a vector obtained by superimposing the plurality of sound pickup vectors is at an acute angle or an obtuse angle with the axis of the electronic device. In other words, the direction of sensitivity of the microphone is at an acute angle or an obtuse angle with the axis of the electronic device, so that directional sound pickup of the microphone in the direction at the acute angle or the obtuse angle with the axis of the electronic device can be implemented, and the electronic device implements directional sound pickup.

[0021] In a possible implementation, the electronic device includes a first housing, a second housing, and a base. The first housing, the base, and the second housing are arranged along the axis of the electronic device. The end face is formed on a side surface that is of the first housing and that faces away from the second housing, and a peripheral side face of the first housing, a peripheral side face of the base, and a peripheral side face of the second housing jointly form at least a part of the peripheral side face. The microphone is located on an inner side of the first housing, the second sound pickup port is located on the peripheral side face of the base, and the second sound channel is located on the base.

[0022] In this implementation, the second sound channel and the second sound pickup port of the electronic device may be formed by the base of the electronic device. Structures of the second sound channel and the second sound pickup port are simple, and a quantity of mechanical parts can be reduced. This helps simplify a manufacturing process of the electronic device and reduce costs.

[0023] In a possible implementation, the base includes a separator and a package plate, and the package plate is fastened to the separator, and is located on a side that is of the separator and that is away from the first housing. The separator is provided with a through hole and a plurality of first grooves spaced from each other, the through hole penetrates the separator along the axis of the electronic device, openings of the plurality of first grooves are located on a side surface that is of the separator and that faces the package plate, one end of each of the plurality of first grooves communicates with the through hole, and the other end of each of the plurality of first grooves extends to a peripheral side face of the separator. The package plate covers the first grooves, and the package plate and inner walls of the first grooves jointly enclose the second sound channels and the second sound pickup ports, and the through hole communicates with the second sound channels and the second chamber of the microphone.

[0024] In this implementation, the separator is provided with the plurality of first grooves, and the package plate covers the first grooves, so that the package plate and the inner walls of the first grooves jointly enclose the second sound channels and the second sound pickup ports. The second sound channel and the second sound pickup port may be formed through disassembly processing. A molding process of the second sound channel and the second sound pickup port is simple and easy to process. This helps increase a product yield. In a possible implementation, the separator of the base further includes second grooves, the second grooves are arranged on a side that is of the through hole and that faces the package plate, and communicate with the through hole and the plurality of first grooves, and the second grooves are configured to mount the acoustic resistance mesh.

[0025] In this implementation, the electronic device may be provided with the second grooves configured to mount the acoustic resistance mesh. In addition, because the second groove is located at a joint of the plurality of second sound channels, the acoustic resistance mesh may also be located at the joint of the plurality of second sound channels. The acoustic resistance mesh may simultaneously adjust sound waves from the plurality of second sound channels, and adjustment consistency is high and an adjustment effect is good.

[0026] In a possible implementation, the package plate is an adhesive.

[0027] In this implementation, the package plate may not only fit the separator to form an internal sound channel of the electronic device, but also be configured to connect the separator to the second housing. The package plate serves multiple purposes.

[0028] In a possible implementation, the electronic device further includes a circuit board, and the circuit board is located on the inner side of the first housing. The circuit board is provided with a first communication hole, the first communication hole penetrates the circuit board along the axis of the electronic device, and the first communication hole is a part of the first sound channel.

[0029] In this implementation, a part of the first sound channel of the electronic device may be formed by the circuit board of the electronic device. A structure of the first sound channel is simple, and a quantity of mechanical parts can be reduced. This helps simplify a manufacturing process of the electronic device and reduce costs.

[0030] In a possible implementation, the first housing includes an end cover and a side wall, the side wall is connected to a periphery of the end cover, and the side wall extends along the axis of the electronic device. The end cover, the circuit board, and the microphone are arranged along the axis of the electronic device, and the circuit board is connected to the end cover and a circuit board of the microphone. The end cover is provided with a second communication hole, the second communication hole penetrates the end cover along the axis of the electronic device, and the second communication hole is another part of the first sound channel.

[0031] In this implementation, a part of the first sound channel of the electronic device may be formed by the end cover of the electronic device. A structure of the first sound channel is simple, and a quantity of mechanical parts can be reduced. This helps simplify a manufacturing process of the electronic device and reduce costs.

[0032] In a possible implementation, the electronic device is a glasses-type device. The electronic device includes a frame temple and a frame, and the frame temple is connected to the frame. The microphone, the first sound channel, and the plurality of second sound channels are located inside the frame temple. A first end face is disposed at an end portion that is of the frame temple and that is connected to the frame, a side face connected to the first end face is further disposed on the frame temple, and the side face extends in an extension direction of the frame temple. The first sound pickup port is located on the first end face, and the plurality of second sound pickup ports are located on the side face. Alternatively, a second end face is disposed at an end portion that is of the frame temple and that is away from the frame, a side face connected to the second end face is further disposed on the frame temple, and the side face extends in an extension direction of the frame temple. The first sound pickup port is located on the second end face, and the plurality of second sound pickup ports are located on the side face.

[0033] In this application, the first sound pickup port that communicates with the first chamber of the microphone is provided on the first end face of the electronic device, the plurality of second sound pickup ports that are spaced from each other and that communicate with the second chamber of the microphone are provided on the side face of the electronic device, and a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports and the first sound pickup port. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, to implement directional sound pickup of the microphone in a target direction, so that the electronic device can implement directional sound pickup.

[0034] In addition, positions of the first sound pickup port and the plurality of second sound pickup ports may fit a shape of the glasses-type device, so that when the glasses-type device is used for sound pickup, the glasses-type device may match a wearing habit of a user, and the direction of sensitivity of the microphone may face the front or the rear of the user. Therefore, the pen-type device can better receive a sound from the front or the rear of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0035] In a possible implementation, the direction of sensitivity of the microphone is parallel to the extension direction of the frame temple.

[0036] In this implementation, the direction of sensitivity of the microphone is parallel to the extension direction of the frame temple. The microphone can better receive a sound from a direction parallel to the extension direction of the frame temple. In other words, the microphone can implement directional sound pickup. In addition, the glasses-type device can better match the wearing habit of the user, so that the glasses-type device can better receive the sound from the front or the rear of the user and effectively shield the impact of the ambient noise, thereby improving user experience.

[0037] In a possible implementation, the electronic device is a tablet-type device, the electronic device includes a housing and a display, and the display is mounted on the housing. The microphone, the first sound channel, and the plurality of second sound channels are located inside the housing. The housing includes a first side face, a second side face, and a bottom face connected to the first side face and the second side face, the first side face is connected to the second side face, and the bottom face is disposed opposite to the display. The first sound pickup port is located on the first side face, at least one second sound pickup port is located on the second side face, and at least one second sound pickup port is located on the first side face or the bottom face; or the first sound pickup port is located on the second side face, at least one second sound pickup port is located on the first side face, and at least one second sound pickup port is located on the second side face or the bottom face; or the first sound pickup port is located at a joint between the first side face and the second side face, at least one second sound pickup port is located on the first side face, and at least one second sound pickup port is located on the second side face or the bottom face.

[0038] In this application, a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports and the first sound pickup port of the electronic device. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, and a vector obtained by adding the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone. The microphone can better receive a sound from the direction of sensitivity of the microphone. In other words, the microphone can implement directional sound pickup, so that the electronic device can implement directional sound pickup. In addition, positions of the first sound pickup port and the plurality of second sound pickup ports may fit a shape of the tablet-type device, so that when the tablet-type device is used for sound pickup, the tablet-type device may match a use habit of a user, and the direction of sensitivity of the microphone may face the front of the user. Therefore, the tablet-type device can better receive a sound from the front of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0039] According to a second aspect, an embodiment of this application provides a sound pickup apparatus. The sound pickup apparatus is used in an electronic device, and the sound pickup apparatus includes a first pipe, a microphone, and a plurality of second pipes. The first pipe is located on one side of the microphone, and the plurality of second pipes are located on the other side of the microphone; a first sound channel is formed in the first pipe, and the first sound channel communicates with a first chamber of the microphone; and second sound channels are formed in the second pipes, the plurality of second sound channels all communicate with a second chamber of the microphone, and inlets of the plurality of second sound channels are staggered.

[0040] In this application, a plurality of vectors may be formed between an inlet of the first sound channel and the inlets of the plurality of second sound channels. The plurality of vectors may be superimposed based on a vector addition principle, and a vector obtained by adding the plurality of vectors is consistent with a direction of sensitivity of the microphone. The microphone can better receive a sound from the direction of sensitivity of the microphone. In other words, the microphone can implement directional sound pickup, so that the electronic device can implement directional sound pickup.

[0041] In a possible implementation, the sound pickup apparatus further includes a converging pipe, the converging pipe is located between the microphone and the plurality of second pipes, a converged sound channel is formed in the converging pipe, and the converged sound channel communicates with the second sound channel and the second chamber of the microphone. The sound pickup apparatus further includes an acoustic resistance mesh, and the acoustic resistance mesh is disposed in the converging pipe.

[0042] In this implementation, the converged sound channel is formed by disposing the converging pipe in the sound pickup apparatus, so that the plurality of second sound channels may communicate with the second chamber of the microphone through the converged sound channel. The microphone needs to be provided with only one second sound pickup hole to simultaneously communicate with the plurality of second sound channels. A manner in which the plurality of second sound channels communicate with the second chamber of the microphone is simple and convenient. In addition, a manufacturing process of the microphone can be simplified. The acoustic resistance mesh is disposed in the converged sound channel in the converging pipe, so that an amplitude value and a phase of sound pressure that is acted on the other side of a diaphragm of the microphone by a sound wave entering the converged sound channel from a plurality of second sound pickup ports can be changed. A damping factor of the acoustic resistance mesh is adjusted, so that the microphone may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility, enabling the microphone to obtain a good directionality and improve its directional sound pickup effect.

[0043] In a possible implementation, inlets of at least two second sound channels in the plurality of second sound channels face different directions.

[0044] In this implementation, the inlets of the plurality of second sound channels may be disposed in non-coplanar areas. This helps better arrange positions of the inlets of the plurality of second sound channels, and improves disposing flexibility of the sound pickup apparatus.

[0045] In a possible implementation, the inlets of the plurality of second sound channels are coplanar, and lengths of connection lines between the inlets of the plurality of second sound channels and the inlet of the first sound channel are equal.

[0046] In this implementation, the plurality of vectors formed between the inlets of the plurality of second sound channels and the inlet of the first sound channel are centrosymmetrically distributed relative to an axis of the first pipe and have a same magnitude. Components that are of the plurality of vectors and that are parallel to the axis of the first pipe may be superimposed, and components that are of the plurality of vectors and that are perpendicular to the axis of the first pipe may completely cancel each other. In this case, a vector obtained by superimposing the plurality of vectors is along the axis of the first pipe. In other words, the direction of sensitivity of the microphone is along the axis of the first pipe, and the microphone can implement directional sound pickup in a direction along the axis of the first pipe, so that the electronic device can implement directional sound pickup.

[0047] According to a third aspect, an embodiment of this application provides an electronic device. The electronic device includes the foregoing sound pickup apparatus, and the sound pickup apparatus is located inside the electronic device. The electronic device has an exterior surface, the exterior surface has a first sound pickup port and a plurality of second sound pickup ports, the first sound pickup port is disposed opposite to and communicates with an inlet of a first sound channel of the sound pickup apparatus, and the plurality of second sound pickup ports are disposed opposite to and communicate with inlets of a plurality of second sound channels of the sound pickup apparatus in a one-to-one correspondence.

[0048] In this application, the electronic device may not only implement directional sound pickup in a target direction by using the sound pickup apparatus, but also implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality of a microphone by using the sound pickup apparatus.

[0049] In a possible implementation, a plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports and the first sound pickup port, a direction of each sound pickup vector is from a corresponding second sound pickup port to the first sound pickup port, a magnitude of each sound pickup vector is positively correlated with a length of a path from the corresponding second sound pickup port to the first sound pickup port, and a sum of the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone.

[0050] In this implementation, the microphone may adjust a position relationship between the plurality of second sound pickup ports and the first sound pickup port, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone.BRIEF DESCRIPTION OF DRAWINGS

[0051] To describe the technical solutions in embodiments of this application or in the background more clearly, the following describes the accompanying drawings for describing embodiments of this application or the background. FIG. 1 is a diagram of a structure of an electronic device in an embodiment according to an embodiment of this application; FIG. 2 is a diagram of a structure of a microphone shown in FIG. 1 according to an embodiment; FIG. 3 is a diagram of sound pickup paths of the electronic device shown in FIG. 1; FIG. 4 is a diagram of sound pickup vectors of the electronic device shown in FIG. 1; FIG. 5A is a diagram of a principle of superposition of the sound pickup vectors of the electronic device shown in FIG. 4; FIG. 5B is a diagram of the principle of superposition of the sound pickup vectors shown in FIG. 5A from another perspective; FIG. 6A is a diagram of a structure of a microphone, a first sound channel, a second sound channel, and a converged sound channel of the electronic device shown in FIG. 1 according to an embodiment; FIG. 6B is a diagram of a structure of the microphone, the first sound channel, the second sound channel, and the converged sound channel shown in FIG. 6A from another perspective; FIG. 7 is a polar coordinate diagram of a directivity characteristic of an electronic device including the first sound channel, the second sound channel, the converged sound channel, and the microphone shown in FIG. 6A; FIG. 8A is a diagram of a structure of a microphone, a first sound channel, a second sound channel, and a converged sound channel of the electronic device shown in FIG. 1 according to another embodiment; FIG. 8B is a diagram of a structure of the microphone, the first sound channel, the second sound channel, and the converged sound channel shown in FIG. 8A from another perspective; FIG. 9A is a diagram of a structure of a microphone, a first sound channel, a second sound channel, and a converged sound channel of the electronic device shown in FIG. 1 according to another embodiment; FIG. 9B is a diagram of a structure of a microphone, a first sound channel, a second sound channel, and a converged sound channel of the electronic device shown in FIG. 1 according to another embodiment; FIG. 10 is a diagram of a structure of a microphone, a first sound channel, a second sound channel, and a converged sound channel of the electronic device shown in FIG. 1 according to another embodiment; FIG. 11 is a diagram of a partial structure of the electronic device shown in FIG. 1 according to another embodiment; FIG. 12 is a polar coordinate diagram of a directivity characteristic of the electronic device shown in FIG. 11 at an operating frequency of 100 Hz; FIG. 13 is a polar coordinate diagram of a directivity characteristic of the electronic device shown in FIG. 11 at an operating frequency of 1000 Hz; FIG. 14 is a polar coordinate diagram of a directivity characteristic of the electronic device shown in FIG. 11 at an operating frequency of 4000 Hz; FIG. 15 is a diagram of a structure of the electronic device shown in FIG. 1 according to another embodiment; FIG. 16 is an exploded view of a partial structure of the electronic device shown in FIG. 15; FIG. 17 is a partial cross-sectional view of the electronic device shown in FIG. 15 at A-A; FIG. 18 is a diagram of a structure of a partial structure of the electronic device shown in FIG. 15 from a different perspective; FIG. 19 is a polar coordinate diagram of a directivity characteristic of the electronic device shown in FIG. 15 at an operating frequency of 1000 Hz; FIG. 20 is a diagram of a structure of a sound pickup apparatus according to an embodiment of this application; FIG. 21 is a diagram of a structure of an electronic device including the sound pickup apparatus shown in FIG. 20 according to an embodiment; FIG. 22 is a diagram of a structure of another electronic device in an embodiment according to this application; FIG. 23 is a diagram of a structure of another electronic device in an embodiment according to this application; FIG. 24 is a diagram of a structure of another electronic device in an embodiment according to this application; FIG. 25 is a diagram of a structure of another electronic device in an embodiment according to this application; and FIG. 26 is a diagram of a structure of another electronic device in an embodiment according to this application. DESCRIPTION OF EMBODIMENTS

[0052] The following describes embodiments of this application with reference to the accompanying drawings in embodiments of this application.

[0053] In the descriptions of embodiments of this application, it should be noted that terms "mounting" and "connection" should be understood in a broad sense unless there is a clear stipulation and limitation. For example, "connection" may be a detachable connection, a non-detachable connection, a direct connection, or an indirect connection through an intermediate medium. "Fastening" means that two parts are connected to each other and a relative position relationship remains unchanged after the two parts are connected to each other. A "rotatable connection" means that two parts are connected to each other and can rotate relative to each other after the two parts are connected to each other. A "slidable connection" means that two parts are connected to each other and can slide relative to each other after the two parts are connected to each other. The orientation terms mentioned in embodiments of this application, for example, "upper", "top", "bottom", "side", "inside", and "outside", are merely directions based on the accompanying drawings. Therefore, the orientation terms are used to better and more clearly describe and understand embodiments of this application, but do not indicate or imply that a specified apparatus or element needs to have a specific orientation and be constructed and operated in a specific orientation. Therefore, this cannot be understood as a limitation on embodiments of this application. "A plurality of" means at least two.

[0054] Terms "first", "second", and the like in embodiments of this application are merely intended for a purpose of description, and shall not be understood as an indication or an implication of relative importance or an implicit indication of a quantity of indicated technical features. Therefore, a feature limited by "first", "second", or the like may explicitly or implicitly include one or more features.

[0055] Reference to "an embodiment", "some embodiments", or the like described in this specification means that one or more embodiments of this application include a specific feature, structure, or characteristic described with reference to embodiments. Therefore, statements such as "in an embodiment", "in some embodiments", and "in some other embodiments" that appear at different places in this specification do not necessarily mean referring to a same embodiment, but mean "one or more but not all of embodiments", unless otherwise specifically emphasized in another manner.

[0056] Terms "include", "contain", "have", and their variants all mean "include but are not limited to", unless otherwise specifically emphasized in another manner. The term "a plurality of" means at least two.

[0057] Terms such as "parallel" and "vertical" are all for a current process level, but are not absolutely strict definitions in a mathematical sense. A small deviation is allowed, for example, approximately parallel or vertical is acceptable. For example, that A is parallel to B means that A is parallel or approximately parallel to B, and an included angle of 0° to 10° between A and B is allowed. For example, that A is perpendicular to B means that A is perpendicular or approximately perpendicular to B, and an included angle of 80° to 100° between A and B is allowed.

[0058] It may be understood that the specific embodiments described herein are merely used to explain related embodiments, but are not intended to limit the embodiments. In addition, it should be noted that, for ease of description, only a part related to embodiments is shown in the accompanying drawings. It should be noted that embodiments of this application and the features in embodiments may be mutually combined in the case of no conflict.

[0059] This application is described below in detail with reference to the accompanying drawings by using embodiments.

[0060] FIG. 1 is a diagram of a structure of an electronic device 1000 in an embodiment according to an embodiment of this application.

[0061] As shown in FIG. 1, the electronic device 1000 may be a pen-type device. It may be understood that the pen-type device generally features an elongated cylindrical design, making it easy for a user to hold. For example, the pen-type device may be a smart pen, a point reading pen, a laser pen, a recording pen, or the like. Such a device usually needs to implement directional sound pickup by using a microphone 200.

[0062] The electronic device 1000 may include a housing 100. The housing 100 may be approximately cylindrical. One end of the housing 100 may be conical, and the other end may be flat, or both ends may be flat. In another embodiment, the housing 100 may alternatively be in an elliptical column shape, a square column shape, a waist column shape, or another elongated cylindrical shape.

[0063] The electronic device 1000 has an exterior surface 10. The exterior surface 10 of the electronic device 1000 may be an outer surface of the housing 100. The exterior surface 10 of the electronic device 1000 may include an end face 101 and a peripheral side face 102 connected to a periphery of the end face 101. The end face 101 intersects an axis O1 of the electronic device 1000. For example, the end face 101 may be perpendicular to the axis O1 of the electronic device 1000. The peripheral side face 102 is disposed around the axis O1 of the electronic device 1000. The peripheral side face 102 may extend in a direction along the axis O1 of the electronic device 1000. In FIG. 1, the axis O1 of the electronic device 1000 is shown by using a dotted line. The axis O1 of the electronic device 1000 is parallel to a length extension direction of the electronic device 1000.

[0064] In some embodiments, the exterior surface 10 of the electronic device 1000 may have a first sound pickup port 11 and a plurality of second sound pickup ports 12 spaced from each other. Each second sound pickup port 12 is spaced from the first sound pickup port 11. For example, the first sound pickup port 11 may be located on the end face 101, and the plurality of second sound pickup ports 12 may be located on the peripheral side face 102. The plurality of second sound pickup ports 12 may be arranged around the axis O1 of the electronic device 1000.

[0065] For example, there may be one first sound pickup port 11, and there may be three second sound pickup ports 12. In another embodiment, there may be two or more than three second sound pickup ports 12. A quantity of second sound pickup ports 12 is not specifically limited in this application. The first sound pickup port 11 and the second sound pickup port 12 may be circular, oval, square, or the like. Alternatively, the first sound pickup port 11 and the second sound pickup port 12 may be of micro-slot structures or the like. A shape of the second sound pickup port 12 is not specifically limited in this application.

[0066] For example, the microphone 200, a first sound channel 13, a plurality of second sound channels 14, and a converged sound channel 15 are disposed inside the electronic device 1000. The first sound channel 13 communicates with the first sound pickup port 11 and space on one side of a diaphragm of the microphone 200. The plurality of second sound channels 14 are in a one-to-one correspondence with and communicate with the second sound pickup ports 12, and each second sound channel 14 communicates with the converged sound channel 15. The converged sound channel 15 further communicates with space on the other side of the diaphragm of the microphone 200.

[0067] FIG. 2 is a diagram of a structure of the microphone 200 shown in FIG. 1 according to an embodiment.

[0068] As shown in FIG. 2, in some embodiments, the microphone 200 includes a microphone housing 21, a microphone circuit board 22, a micro-electro-mechanical system chip (namely, Micro-Electro-Mechanical System, MEMS chip) 23, and a functional integrated circuit chip (namely, Application-Specific Integrated Circuit, ASIC chip) 24. The microphone housing 21 is fastened to the microphone circuit board 22, and forms a chamber of the microphone 200 with the microphone circuit board 22. The micro-electro-mechanical system chip 23 and the functional integrated circuit chip 24 are spaced from each other and fastened to the microphone circuit board 22, and are both located in the chamber of the microphone 200. The microphone circuit board 22 is configured to be electrically connected to a terminal circuit board of the electronic device 1000. The functional integrated circuit chip 24 is electrically connected to the micro-electro-mechanical system chip 23. In this embodiment, a manner in which the two are electrically connected may be a connection manner known in the conventional technology, and the functional integrated circuit chip 24 may alternatively be a functional integrated circuit chip 24 known in the conventional technology. Details are not described herein.

[0069] For example, the micro-electro-mechanical system chip 23 may include a diaphragm 231. An inner wall of the micro-electro-mechanical system chip 23 and the microphone circuit board 22 jointly enclose a first chamber 201 of the microphone 200. The first chamber 201 is located on a side that is of the diaphragm 231 and that faces the microphone circuit board 22. The microphone housing 21 and an outer wall of the micro-electro-mechanical system chip 23 jointly enclose a second chamber 202 of the microphone 200. The second chamber 202 of the microphone 200 may be a part of the chamber of the microphone 200. The second chamber 202 of the microphone 200 is located on a side that is of the diaphragm 231 and that faces away from the first chamber 201. In other words, the first chamber 201 of the microphone 200 and the second chamber 202 of the microphone 200 are respectively located on two sides of the diaphragm 231. It may be understood that the first chamber 201 of the microphone 200 and the second chamber 202 of the microphone 200 may be of a special-shape structure. The first chamber 201 and the second chamber 202 of the microphone 200 may not need to strictly comply with an orientation relationship such as up-down or left-right. When the diaphragm 231 separates the first chamber 201 from the second chamber 202, it may be understood as that the first chamber 201 and the second chamber 202 are respectively located on two sides of the diaphragm 231. For example, the first chamber 201 of the microphone 200 may be surrounded or semi-surrounded by the second chamber 202 of the microphone 200. In this embodiment, the micro-electro-mechanical system chip 23 may be a micro-electro-mechanical system chip 23 known in the conventional technology. More details of the micro-electro-mechanical system chip 23 are not described herein.

[0070] As shown in FIG. 2, a first sound pickup hole 221 is provided at a position that is of the microphone circuit board 22 and that directly faces the diaphragm 231 of the microphone 200, and the first sound pickup hole 221 communicates with the first chamber 201 of the microphone 200. The microphone housing 21 is provided with a second sound pickup hole 211 that communicates with the second chamber 202 of the microphone 200. In some embodiments, the second sound pickup hole 211 is disposed opposite to the diaphragm 231 of the microphone 200, or the second sound pickup hole 211 may be staggered from the diaphragm 231 of the microphone 200. In this way, a sound wave passing through the first sound pickup hole 221 may enter the first chamber 201 of the microphone 200, and act on one side of the diaphragm 231 of the microphone 200; and a sound wave passing through the second sound pickup hole 211 may enter the second chamber 202 of the microphone 200, and act on the other side of the diaphragm 231 of the microphone 200. The diaphragm 231 of the microphone 200 vibrates under an effect of sound pressure formed by two sound waves, and the micro-electro-mechanical system chip 23 can convert a vibration signal into an electrical signal for output, to implement sound pickup of the microphone 200.

[0071] Refer to FIG. 1 and FIG. 2 together. The microphone 200 may be located on an inner side of the peripheral side face 102. A side of the microphone 200 may face the end face 101 of the electronic device 1000. For example, a side that is of the microphone 200 and that is provided with the first sound pickup hole 221 may face the end face 101 of the electronic device 1000, and a side that is of the microphone 200 and that is provided with the second sound pickup hole 211 faces away from the end face 101 of the electronic device 1000. For example, the first sound channel 13 may communicate with the first sound pickup hole 221 of the microphone 200, to communicate with the first chamber 201 of the microphone 200. It may be understood that the first sound pickup port 11 of the electronic device 1000 communicates with the first sound channel 13, so that the first sound pickup port 11 may communicate with the first chamber 201 of the microphone 200 through the first sound channel 13. For example, the converged sound channel 15 may communicate with the second sound pickup hole 211 of the microphone 200, to communicate with the second chamber 202 of the microphone 200. It may be understood that each second sound channel 14 communicates with the converged sound channel 15, so that each second sound channel 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The plurality of second sound pickup ports 12 of the electronic device 1000 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0072] In this embodiment, the converged sound channel 15 is disposed, and the converged sound channel 15 may communicate with the second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converged sound channel 15 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0073] FIG. 3 is a diagram of sound pickup paths of the electronic device 1000 shown in FIG. 1. FIG. 4 is a diagram of sound pickup vectors of the electronic device 1000 shown in FIG. 1.

[0074] As shown in FIG. 3 and FIG. 4, when a sound source is located on a side that is of the electronic device 1000 and that is provided with the end face 101, and the electronic device 1000 performs sound pickup, the first sound pickup port 11 is close to the sound source, and a sound emitted from the sound source first reaches the first sound pickup port 11. After reaching the first sound pickup port 11, the sound may enter the first chamber 201 of the microphone 200 from the first sound pickup port 11, and act on one side of the diaphragm 231 of the microphone 200. This is a first sound pickup path of the electronic device 1000. It should be understood that, in FIG. 3 and FIG. 4, the first chamber 201 and the second chamber 202 are schematically distinguished by using dashed lines. Specific shapes and specific positions of the first chamber 201 and the second chamber 202 are not limited to the shapes and the positions shown in FIG. 3 and FIG. 4. FIG. 3 shows the first sound pickup path by using dashed arrows. After reaching the first sound pickup port 11, the sound may further reach the plurality of second sound pickup ports 12 around a periphery of the electronic device 1000 from the first sound pickup port 11, then enter the second chamber 202 of the microphone 200 from the plurality of second sound pickup ports 12, and act on the other side of the diaphragm 231 of the microphone 200. This is a second sound pickup path of the electronic device 1000. FIG. 3 shows the second sound pickup path by using solid arrows.

[0075] It may be understood that, when the electronic device 1000 performs sound pickup, the sound emitted from the sound source may separately reach the first chamber 201 and the second chamber 202 of the microphone 200 through the first sound pickup path and the second sound pickup path. In this case, a plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. For example, three sound pickup vectors are respectively formed between three second sound pickup ports 12 and the first sound pickup port 11. FIG. 4 shows sound pickup vectors ( S 1 ⇀ , S 2 ⇀ , and S 3 ⇀ ) by using dashed arrows. A direction of each sound pickup vector is from the corresponding second sound pickup port 12 to the first sound pickup port 11. A magnitude of the sound pickup vector is positively correlated with a length L of a path from the first sound pickup port 11 to the corresponding second sound pickup port 12. The length L of the path from the first sound pickup port 11 to each second sound pickup port 12 is a distance by which a sound wave propagates between the first sound pickup port 11 and the second sound pickup port 12, and is referred to as an acoustic path length.

[0076] It should be understood that, when a sound wave generated by the sound source is transmitted to the electronic device 1000, the sound wave first reaches the first sound pickup port 11 of the electronic device 1000 at specific sound pressure, and then reaches the second sound pickup port 12 of the electronic device 1000 at different sound pressure. A sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 causes air fluctuation in the microphone 200, and excites the MEMS chip, to implement directional sound pickup. If the acoustic path length increases, the sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 increases, and sensitivity of the microphone 200 is improved. In this case, a magnitude of a sound pickup vector corresponding to the second sound pickup port 12 increases. If the acoustic path length decreases, the sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12 decreases, and sensitivity of the microphone 200 deteriorates. In this case, a magnitude of a sound pickup vector corresponding to the second sound pickup port 12 decreases. In other words, when the length L of the path from the first sound pickup port 11 to the second sound pickup port 12 increases, the magnitude of the sound pickup vector formed between the first sound pickup port 11 and the corresponding second sound pickup port 12 increases. When the length L of the path from the first sound pickup port 11 to the second sound pickup port 12 decreases, the magnitude of the sound pickup vector formed between the first sound pickup port 11 and the corresponding second sound pickup port 12 decreases. The magnitude of the sound pickup vector is positively correlated with the length L of the path from the first sound pickup port 11 to the corresponding second sound pickup port 12.

[0077] FIG. 5A is a diagram of a principle of superposition of the sound pickup vectors of the electronic device 1000 shown in FIG. 4. FIG. 5B is a diagram of the principle of superposition of the sound pickup vectors shown in FIG. 5A from another perspective. For example, FIG. 5A illustrates a diagram of a principle of superposition of a plurality of sound pickup vectors S N ⇀ at an angle parallel to an axis of the electronic device 1000. FIG. 5B illustrates a diagram of a principle of superposition of the plurality of sound pickup vectors S N ⇀ at an angle perpendicular to the axis of the electronic device 1000.

[0078] As shown in FIG. 5A and FIG. 5B, the plurality of sound pickup vectors may be superimposed based on a principle of vector addition. In this case, a sum S 0 ⇀ of the plurality of sound pickup vectors may be represented as: S 0 ⇀ = S 1 ⇀ + S 2 ⇀ + … + S N ⇀ N ≥ 2

[0079] Herein, S N ⇀ indicates a sound pickup vector formed between an N th< second sound pickup port 12 and the first sound pickup port 11; a direction of S N ⇀ is from the N th< second sound pickup port 12 to the first sound pickup port 11; and a magnitude of S N ⇀ is positively correlated with a length L of a path from the first sound pickup port 11 to the N th< second sound pickup port 12.

[0080] The first sound pickup port 11 is located on the end face 101 of the electronic device 1000, and the plurality of second sound pickup ports 12 are located on the peripheral side face 102 of the electronic device 1000. In this case, the plurality of sound pickup vectors S N ⇀ formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 have components in the direction along the axis O1 of the electronic device 1000. Components of the plurality of sound pickup vectors S N ⇀ in a direction parallel to the axis O1 of the electronic device 1000 may be superimposed, and at least a part of components of the plurality of sound pickup vectors S N ⇀ in a direction perpendicular to the axis O1 of the electronic device 1000 may cancel each other, so that a direction of a vector S 0 ⇀ obtained by adding the plurality of sound pickup vectors S N ⇀ is parallel to the axis O1 of the electronic device 1000 or is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, a direction of sensitivity of the microphone 200 may be parallel to the axis O1 of the electronic device 1000, or may be at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. The microphone 200 may implement directional sound pickup in the direction parallel to the axis of the electronic device and in the direction that is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000.

[0081] For example, three sound pickup vectors ( S 1 ⇀ , S 2 ⇀ , and S 3 ⇀ ) are centrosymmetric relative to the axis O1 of the electronic device 1000, components of the three sound pickup vectors ( S 1 ⇀ , S 2 ⇀ , and S 3 ⇀ ) in the direction parallel to the axis O1 of the electronic device 1000 may be superimposed, and components of the three sound pickup vectors ( S 1 ⇀ , S 2 ⇀ , and S 3 ⇀ ) in the direction perpendicular to the axis O1 of the electronic device 1000 may completely cancel each other, so that a direction of a sum S 0 ⇀ obtained by adding the three sound pickup vectors ( S 1 ⇀ , S 2 ⇀ , and S 3 ⇀ ) is parallel to the axis O1 of the electronic device 1000.

[0082] The direction of sensitivity of the microphone 200 may be understood as that the microphone 200 is sensitive to a sound from the direction of sensitivity of the microphone 200, can better receive the sound from the direction of sensitivity of the microphone 200, and suppresses a sound from another direction compared with the sound from the direction of sensitivity. In this embodiment of this application, the direction of sensitivity of the microphone 200 may be determined by a sum of a plurality of sound pickup vectors. The microphone 200 can respond to a sound pressure difference between the first sound pickup port 11 and the second sound pickup port 12, and excite the MEMS chip, to implement directional sound pickup. In this way, for the electronic device 1000 that cannot be provided with a sound pickup port in a target direction, the electronic device 1000 may be provided with a plurality of second sound pickup ports 12 in another direction, to implement directional sound pickup in the target direction. For example, when the pen-type device is used for voice pickup, the user usually holds the electronic device 1000 with one end of the electronic device 1000 in a length direction facing the sound source (for example, a mouth of the user). Because it is difficult for the pen-type device to provide a sound pickup port at another end away from the sound source, the first sound pickup port 11 and the plurality of second sound pickup ports 12 spaced from each other may be provided on the exterior surface 10 of the electronic device 1000. For example, the first sound pickup port 11 is provided on the end face 101 of the electronic device 1000, and the plurality of second sound pickup ports 12 are provided on the peripheral side face 102 of the electronic device 1000. In addition, the first sound pickup port 11 communicates with the first chamber 201 of the microphone 200, and the plurality of second sound pickup ports 12 communicate with the second chamber 202 of the microphone 200, so that the plurality of sound pickup vectors S N ⇀ may be formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. The vector S 0 ⇀ obtained by adding the plurality of sound pickup vectors S N ⇀ is consistent with the direction of sensitivity of the microphone 200. The microphone 200 of the electronic device 1000 can better receive the sound from the direction of sensitivity of the microphone 200, in other words, the microphone 200 can implement directional sound pickup, so that the electronic device 1000 can implement directional sound pickup. For example, the direction of sensitivity of the microphone 200 may be parallel to the axis O1 of the electronic device 1000, or may be at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this way, the microphone 200 of the pen-type device can implement directional sound pickup in the length extension direction of the electronic device 1000. A direction of the highest sensitivity of the microphone 200 faces the sound source, so that impact of ambient noise can be effectively shielded. In addition, the microphone 200 may adjust a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone 200.

[0083] It should be understood that, in this embodiment of this application, that the direction of sensitivity of the microphone 200 is parallel to the axis O1 of the electronic device 1000 includes a case in which the direction of sensitivity of the microphone 200 coincides with the axis O1 of the electronic device 1000.

[0084] FIG. 6A is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 shown in FIG. 1 according to an embodiment. FIG. 6B is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 shown in FIG. 6A from another perspective.

[0085] As shown in FIG. 5A to FIG. 6A, a center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The plurality of second sound pickup ports 12 are coplanar, and a plane on which the plurality of second sound pickup ports 12 are located is perpendicular to the axis O1 of the electronic device 1000. The plurality of second sound pickup ports 12 are centrosymmetrically distributed relative to the axis O1 of the electronic device 1000. Lengths of acoustic paths between the plurality of second sound pickup ports 12 and the first sound pickup port 11 are equal. In this case, the plurality of sound pickup vectors S N ⇀ are centrosymmetrically distributed relative to the axis O1 of the electronic device 1000 and have a same magnitude. The components that are of the plurality of sound pickup vectors S N ⇀ and that are along the axis O1 of the electronic device 1000 may be superimposed, and the components that are of the plurality of sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 may completely cancel each other. In this case, the vector S 0 ⇀ obtained by superimposing the plurality of sound pickup vectors S N ⇀ is along the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is along the axis O1 of the electronic device 1000, and the microphone 200 can implement directional sound pickup in the direction along the axis O1 of the electronic device 1000, so that the electronic device 1000 can implement directional sound pickup. In addition, the pen-type device can better match the holding habit of the user, so that the direction of sensitivity of the microphone 200 can face the mouth of the user. In this way, the pen-type device can better receive a voice of the user and effectively shield the impact of the ambient noise, thereby improving user experience.

[0086] It should be understood that, in this embodiment of this application, a position of the first sound pickup port 11 is mainly limited by using the center of the first sound pickup port 11 as a reference, and a position of the second sound pickup port 12 is mainly limited by using a center of the second sound pickup port 12 as a reference. That the plurality of second sound pickup ports 12 are coplanar means that centers of the plurality of second sound pickup ports 12 are coplanar. A connection line between the first sound pickup port 11 and the second sound pickup port 12 is a connection line between the center of the first sound pickup port 11 and the center of the second sound pickup port 12. That the second sound pickup port 12 faces the first sound pickup port 11 means that the center of the second sound pickup port 12 faces the center of the first sound pickup port 11.

[0087] FIG. 7 is a polar coordinate diagram of a directivity characteristic of the electronic device 1000 including the first sound channel 13, the second sound channel 14, the converged sound channel 15, and the microphone 200 shown in FIG. 6A.

[0088] As shown in FIG. 6A and FIG. 7, the direction of sensitivity of the microphone 200 is along the axis O1 of the electronic device 1000, and the direction of sensitivity of the microphone 200 may coincide with or nearly coincide with a connection line between a 90° direction and a 270° direction in FIG. 7. In this case, the microphone 200 may receive sounds from the 90° direction and the 270° direction, and suppress sounds from a 0° direction and a 180° direction. In other words, the microphone 200 may receive a sound from the direction along the axis O1 of the electronic device 1000, and suppress a sound from the periphery of the electronic device 1000, so that the electronic device 1000 can implement directional sound pickup.

[0089] It may be understood that lengths of acoustic paths between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the longest for sound waves from the 90° direction and the 270° direction, so that a sound pressure difference between the sound waves from the 90° direction and the 270° direction on two sides of the diaphragm 231 of the microphone 200 is the largest. The microphone 200 is sensitive to the sound waves from the 90° direction and the 270° direction, so that the microphone 200 can receive the sounds from the 90° direction and the 270° direction. Lengths of acoustic paths between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the shortest for sound waves from the 0° direction and the 180° direction. Therefore, a sound pressure difference between the sound waves from the 0° direction and the 180° direction on the two sides of the diaphragm 231 of the microphone 200 is the smallest. The microphone 200 is the least sensitive to the sound waves from the 0° direction and the 180° direction, so that the microphone 200 can suppress the sounds from the 0° direction and the 180° direction. In other words, the microphone 200 may receive the sounds from the 90° direction and the 270° direction, and suppress the sounds from the 0° direction and the 180° direction, so that the electronic device 1000 can implement directional sound pickup.

[0090] In this embodiment, the electronic device 1000 is provided with the first sound pickup port 11 and the plurality of second sound pickup ports 12, the first sound pickup port 11 communicates with the first chamber 201 of the microphone 200, and the plurality of second sound pickup ports 12 communicate with the second chamber 202 of the microphone 200, so that the microphone 200 can implement directional sound pickup through the first sound pickup port 11 and the plurality of second sound pickup ports 12. For example, the microphone 200 of the electronic device 1000 may implement directional sound pickup in the direction along the axis O1 of the electronic device 1000. When the electronic device 1000 is used for sound pickup, the user holds the electronic device 1000, and the first sound pickup port 11 faces the sound source (for example, the mouth of the user). In this case, the sound source may be approximately located on the axis O1 of the electronic device 1000. Because the direction of sensitivity of the microphone 200 may be along the axis O1 of the electronic device 1000, the microphone 200 may receive the sound from the direction along the axis O1 of the electronic device 1000, in other words, the microphone 200 of the electronic device 1000 may receive the sound from the sound source, and suppress the sound from the periphery of the electronic device 1000, so that the electronic device 1000 can implement directional sound pickup.

[0091] It should be noted that, if the direction of sensitivity of the microphone 200 coincides with or nearly coincides with a connection line between the 0° direction and the 180° direction in FIG. 7, the lengths of the acoustic paths between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the longest for the sound waves from the 0° direction and the 180° direction, so that the microphone 200 of the electronic device 1000 can receive the sounds from the 0° direction and the 180° direction. The lengths of the acoustic paths between the first sound pickup port 11 and the plurality of second sound pickup ports 12 are the shortest for the sound waves from the 90° direction and the 270° direction, so that the microphone 200 can suppress the sounds from the 90° direction and the 270° direction. In other words, the microphone 200 may receive the sounds from the 0° direction and the 180° direction, and suppress the sounds from the 90° direction and the 270° direction, so that the electronic device 1000 can implement directional sound pickup.

[0092] FIG. 8A is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 shown in FIG. 1 according to another embodiment. FIG. 8B is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 shown in FIG. 8A from another perspective.

[0093] As shown in FIG. 8A and FIG. 8B, a center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. The plurality of second sound pickup ports 12 are coplanar, and a plane on which the plurality of second sound pickup ports 12 are located is perpendicular to the axis O1 of the electronic device 1000. The plurality of sound pickup vectors S N ⇀ are non-centrosymmetrically distributed relative to the axis O1 of the electronic device 1000. In this case, the plurality of sound pickup vectors S N ⇀ are non-centrosymmetrically distributed relative to the axis O1 of the electronic device 1000, and the components that are of the plurality of sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other. In this case, the vector obtained by superimposing the plurality of sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that directional sound pickup of the microphone 200 in the direction at the acute angle or the obtuse angle with the axis O1 of the electronic device 1000 can be implemented, and the electronic device 1000 can implement directional sound pickup.

[0094] For example, there may be three second sound pickup ports 12. Three sound pickup vectors S N ⇀ are respectively formed between the three second sound pickup ports 12 and the first sound pickup port 11. A sum of components that are of two sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 is greater than a component that is of the third sound pickup vector S N ⇀ and that is perpendicular to the axis O1 of the electronic device 1000. Therefore, components that are of the three sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the three sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this case, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In another embodiment, there may be two or more than three second sound pickup ports 12. A quantity of second sound pickup ports 12 is not specifically limited in this application. The two or more than three second sound pickup ports 12 may be non-centrosymmetrically distributed relative to the axis O1 of the electronic device 1000. In this case, the components that are of the plurality of sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the plurality of sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this case, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000.

[0095] FIG. 9A is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 shown in FIG. 1 according to another embodiment.

[0096] As shown in FIG. 9A, a center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. There may be three second sound pickup ports 12. A plane on which the three second sound pickup ports 12 are located is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this case, a length of an acoustic path between one second sound pickup port 12 and the first sound pickup port 11 is less than lengths of acoustic paths between the other two second sound pickup ports 12 and the first sound pickup port 11, so that a magnitude of a sound pickup vector S N ⇀ corresponding to the second sound pickup port 12 is less than magnitudes of the other two sound pickup vectors S N ⇀ . Components that are of the three sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the three sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that directional sound pickup of the microphone 200 in the direction at the acute angle or the obtuse angle with the axis O1 of the electronic device 1000 can be implemented, and the electronic device 1000 can implement directional sound pickup.

[0097] FIG. 9B is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 shown in FIG. 1 according to another embodiment.

[0098] As shown in FIG. 9B, a center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. There may be two second sound pickup ports 12. A plane on which the two second sound pickup ports 12 are located is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In this case, a length of an acoustic path between one second sound pickup port 12 and the first sound pickup port 11 is less than a length of an acoustic path between the other second sound pickup port 12 and the first sound pickup port 11, so that a magnitude of a sound pickup vector S N ⇀ corresponding to the second sound pickup port 12 is less than a magnitude of the other sound pickup vector S N ⇀ . Components that are of the two sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the two sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that directional sound pickup of the microphone 200 in the direction at the acute angle or the obtuse angle with the axis O1 of the electronic device 1000 can be implemented, and the electronic device 1000 can implement directional sound pickup.

[0099] FIG. 10 is a diagram of a structure of the microphone 200, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 shown in FIG. 1 according to another embodiment.

[0100] As shown in FIG. 10, a center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. There may be four second sound pickup ports 12, and at least one second sound pickup port 12 is not coplanar with another second sound pickup port 12. In this case, a length of an acoustic path between at least one second sound pickup port 12 and the first sound pickup port 11 is less than lengths of acoustic paths between the other second sound pickup ports 12 and the first sound pickup port 11, so that a magnitude of a sound pickup vector S N ⇀ corresponding to the second sound pickup port 12 is less than magnitudes of the other sound pickup vectors S N ⇀ . Components that are of the four sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the four sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that directional sound pickup of the microphone 200 in the direction at the acute angle or the obtuse angle with the axis O1 of the electronic device 1000 can be implemented.

[0101] In another embodiment, there may be more than four second sound pickup ports 12. A quantity of second sound pickup ports 12 is not specifically limited in this application. There are more than four second sound pickup ports 12, and at least one second sound pickup port 12 is not coplanar with another second sound pickup port 12. In this case, a length of an acoustic path between at least one second sound pickup port 12 and the first sound pickup port 11 is less than lengths of acoustic paths between the other second sound pickup ports 12 and the first sound pickup port 11, so that a magnitude of a sound pickup vector S N ⇀ corresponding to the second sound pickup port 12 is less than magnitudes of the other sound pickup vectors S N ⇀ . The components that are of the plurality of sound pickup vectors S N ⇀ and that are perpendicular to the axis O1 of the electronic device 1000 cannot completely cancel each other, and a vector obtained by superimposing the plurality of sound pickup vectors S N ⇀ is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000. In other words, the direction of sensitivity of the microphone 200 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that directional sound pickup of the microphone 200 in the direction at the acute angle or the obtuse angle with the axis O1 of the electronic device 1000 can be implemented, and the electronic device 1000 can implement directional sound pickup.

[0102] It should be noted that the electronic device 1000 in the foregoing embodiments is described by using an example in which the center of the first sound pickup port 11 is located on the axis O1 of the electronic device 1000. In another embodiment, the center of the first sound pickup port 11 may alternatively be staggered from the axis O1 of the electronic device 1000. In this case, relative positions of the plurality of second sound pickup ports 12 and the first sound pickup port 11 are designed, so that the direction of sensitivity of the microphone 200 is parallel to the axis O1 of the electronic device 1000 and is staggered from the axis O1 of the electronic device 1000, or the direction of sensitivity of the microphone 200 may intersect the axis O1 of the electronic device 1000. For example, the plurality of second sound pickup ports 12 are coplanar, and a plane on which the plurality of second sound pickup ports 12 are located is perpendicular to the axis O1 of the electronic device 1000. In this case, a position of the first sound pickup port 11 may be adjusted, so that the plurality of second sound pickup ports 12 can flexibly fit the first sound pickup port 11, and the direction of sensitivity of the microphone can be flexibly adjusted to be parallel to the axis of the electronic device, or be at an acute angle or an obtuse angle with the axis of the electronic device. For a specific implementation in which the relative positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 are designed, refer to the foregoing relative position relationship between the first sound pickup port 11 and the plurality of second sound pickup ports 12 shown in FIG. 6A to FIG. 10. Details are not described herein.

[0103] According to the electronic device 1000 provided in this embodiment of this application, the relative positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 are adjusted, so that the direction of sensitivity of the microphone 200 may be adjusted (for example, the direction of sensitivity of the microphone 200 is adjusted to be in an axial direction of the electronic device 1000, or the direction of sensitivity of the microphone 200 is adjusted to be at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000), to adapt to different application scenarios of the electronic device 1000 or adapt to different holding habits of the user on the electronic device 1000. For example, when the electronic device 1000 is used in a scenario in which sound pickup is performed on a sound source on the axis O1 of the electronic device 1000, the direction of sensitivity of the microphone 200 is adjusted to be in the axial direction of the electronic device 1000, so that the microphone 200 can be aligned with the sound source to maximize sensitivity. In this way, the microphone 200 can better receive a sound from a direction along the axis O1 of the electronic device 1000. For another example, when the electronic device 1000 is used in a scenario in which sound pickup is performed on a sound source slightly deviated from the axis O1 of the electronic device 1000 (that is, a connection line between the sound source and the first sound pickup port 11 is at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000), the direction of sensitivity of the microphone 200 is adjusted to be at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that the microphone 200 can be aligned with the sound source to maximize sensitivity, and the microphone 200 can better receive a sound from a direction at an acute angle or an obtuse angle with the axis O1 of the electronic device 1000, so that the electronic device 1000 can implement directional sound pickup.

[0104] FIG. 11 is a diagram of a partial structure of the electronic device 1000 shown in FIG. 1 according to another embodiment.

[0105] As shown in FIG. 11, the electronic device 1000 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed in the converged sound channel 15, so that a sound wave entering from the second sound pickup port 12 acts on the other side of the diaphragm 231 of the microphone 200 through the acoustic resistance mesh 300.

[0106] It may be understood that, the acoustic resistance mesh 300 is disposed in the converged sound channel 15, so that an amplitude value and a phase of sound pressure that is acted on the other side of the diaphragm by a sound wave entering the converged sound channel 15 from the plurality of second sound pickup ports 12 can be changed. A damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality, and adjustment flexibility is high. In this way, the microphone 200 may obtain a good directionality, to improve a directional sound pickup effect of the microphone 200.

[0107] For example, an amplitude value of a sound wave entering the second chamber 202 of the microphone 200 can be decreased or increased by increasing or decreasing the damping factor of the acoustic resistance mesh 300, so that a sound pressure difference between the amplitude value of the sound wave in the second chamber 202 of the microphone 200 and an amplitude value of a sound wave in the first chamber 201 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200.

[0108] It may be understood that, when the amplitude value of the sound wave in the first chamber 201 of the microphone 200 is greater than the amplitude value of the sound wave in the second chamber 202 of the microphone 200, and the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 and the amplitude value of the sound wave in the second chamber 202 is large, the microphone 200 has the highest sensitivity to a sound from a side of the first sound pickup port 11, can better receive a sound from a side facing the first sound pickup port 11, and suppresses sounds from a direction of the peripheral side face 102 of the electronic device 1000 and a side facing away from the first sound pickup port 11, to implement the cardioid directionality of the microphone 200.

[0109] When the amplitude value of the sound wave in the first chamber 201 of the microphone 200 is greater than the amplitude value of the sound wave in the second chamber 202 of the microphone 200, and the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 and the amplitude value of the sound wave in the second chamber 202 is small, the microphone 200 is sensitive to sounds from a side of the first sound pickup port 11 and a side facing away from the first sound pickup port 11, and has the highest sensitivity to the sound from the side of the first sound pickup port 11. Therefore, the microphone 200 can better receive the sound from the side facing the first sound pickup port 11, can receive the sound from the side facing away from the first sound pickup port 11, and suppresses a sound from a direction of the peripheral side face 102 of the electronic device 1000, to implement the supercardioid directionality of the microphone 200.

[0110] When the amplitude value of the sound wave in the first chamber 201 is equivalent to the amplitude value of the sound wave in the second chamber 202, the microphone 200 has high sensitivity to sounds from a side of the first sound pickup port 11 and a side facing away from the first sound pickup port 11, can better receive sounds from a side facing the first sound pickup port 11 and the side facing away from the first sound pickup port 11, and suppresses a sound from a direction of the peripheral side face 102 of the electronic device 1000, to implement the 8-shaped directionality of the microphone 200.

[0111] In this embodiment, a material of the acoustic resistance mesh 300 may be silicon, ceramic, metal, nylon, or the like. The acoustic resistance mesh 300 may be of an existing acoustic resistance mesh structure in the conventional technology. For example, the acoustic resistance mesh 300 may be a silicon sheet provided with dense through holes. The damping factor of the acoustic resistance mesh 300 is adjusted by adjusting a quantity and sizes of through holes of the acoustic resistance mesh 300. The acoustic resistance mesh 300 may alternatively be a silicon sheet provided with a channel. The channel can allow a sound wave to pass through and act on the diaphragm 231 of the microphone 200. One end of the channel may be disposed as a mesh structure or a through structure, and the other end of the channel may be disposed as a mesh structure or a through structure. The mesh structure is mainly used to prevent dust from entering the inside of the microphone 200 through the second sound pickup hole 211 and affecting product performance of the microphone 200. The mesh structure may be formed by providing a plurality of tiny through holes at a port of the channel. In addition, a dust filter may cover the port of the channel as the mesh structure through pasting, or the like.

[0112] FIG. 12 is a polar coordinate diagram of a directivity characteristic of the electronic device 1000 shown in FIG. 11 at an operating frequency of 100 Hz. FIG. 13 is a polar coordinate diagram of a directivity characteristic of the electronic device 1000 shown in FIG. 11 at an operating frequency of 1000 Hz. FIG. 14 is a polar coordinate diagram of a directivity characteristic of the electronic device 1000 shown in FIG. 11 at an operating frequency of 4000 Hz.

[0113] As shown in FIG. 12 to FIG. 14, when the operating frequency of the microphone 200 is 100 / 1000 / 4000 Hz, the damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement the cardioid directionality, the supercardioid directionality, and the 8-shaped directionality, and adjustment flexibility is high. It may be understood that the acoustic resistance mesh 300 is disposed, and the damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of the cardioid directionality, the supercardioid directionality, and the 8-shaped directionality at different operating frequencies such as a low frequency (for example, 100 Hz), a medium frequency (for example, 1000 Hz), and a high frequency (for example, 4000 Hz). In FIG. 12 to FIG. 14, three different line shapes are used to schematically distinguish between the cardioid directionality, the supercardioid directionality, and the 8-shaped directionality.

[0114] When the damping factor of the acoustic resistance mesh 300 is adjusted to make acoustic resistance small (for example, the acoustic resistance may be 3 Pa*s / m), the microphone 200 may implement the 8-shaped directionality at the operating frequencies of 100 / 1000 / 4000 Hz. When the damping factor of the acoustic resistance mesh 300 is adjusted to increase the acoustic resistance (for example, the acoustic resistance may be 75 Pa*s / m), the microphone 200 may implement the supercardioid directionality at the operating frequencies of 100 / 1000 / 4000 Hz. When the damping factor of the acoustic resistance mesh 300 is adjusted to make the acoustic resistance large (for example, the acoustic resistance may be 118 Pa*s / m), the microphone 200 may implement the cardioid directionality at the operating frequencies of 100 / 1000 / 4000 Hz. In another embodiment, the electronic device 1000 may further include a damper. The damper may be disposed on a path from the first sound pickup port 11 to the first chamber 201 of the microphone 200. Specifically, the damper may be disposed in the first sound channel 13. It may be understood that a material and a structure of the damper may be the same as a material and a structure of the acoustic resistance mesh 300. An amplitude value of a sound wave entering the first chamber 201 of the microphone 200 can be decreased or increased by increasing or decreasing a damping factor of the damper, so that a sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and an amplitude value of a sound wave in the second chamber 202 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. In addition, the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and the amplitude value of the sound wave in the second chamber 202 of the microphone 200 may be adjusted by adjusting both damping factors of the acoustic resistance mesh 300 and the damper, so that the microphone 200 is adjusted to the required cardioid directionality or 8-shaped directionality, and adjustment flexibility is good.

[0115] With reference to related accompanying drawings, the foregoing describes in detail a basic structure of the electronic device 1000 and a basic principle of directional sound pickup implemented by the microphone 200 of the electronic device 1000 when the electronic device 1000 is a pen-type device. With reference to related accompanying drawings, the following continues to describe in detail a specific structure of the electronic device 1000 by using an example in which the electronic device 1000 is a smart pen.

[0116] FIG. 15 is a diagram of a structure of the electronic device 1000 shown in FIG. 1 according to another embodiment. FIG. 16 is an exploded view of a partial structure of the electronic device 1000 shown in FIG. 15.

[0117] As shown in FIG. 15 and FIG. 16, the electronic device 1000 may be a smart pen. The electronic device 1000 includes a first housing 110, a second housing 120, a base 400, a microphone 200, an acoustic resistance mesh 300, and a circuit board 500. The first housing 110, the base 400, and the second housing 120 may be arranged along an axis O1 of the electronic device 1000. The base 400 is separately connected to the first housing 110 and the second housing 120.

[0118] For example, outer surfaces of the first housing 110, the second housing 120, and the base 400 may jointly form an exterior surface 10 of the electronic device 1000. Specifically, the exterior surface 10 of the electronic device 1000 may include an end face 101 and a peripheral side face 102 connected to a periphery of the end face 101. The end face 101 of the electronic device 1000 is formed on a side surface that is of the first housing 110 and that faces away from the second housing 120. A peripheral side face of the first housing 110, a part of a peripheral side face of the base 400, and a peripheral side face of the second housing 120 jointly form the peripheral side face 102 of the electronic device 1000. It may be understood that the electronic device 1000 may include one or more mechanical parts that are used to form the exterior surface 10. All or a part including a part of the exterior surface 10 of the mechanical parts may be considered as a part of a housing of the electronic device 1000.

[0119] For example, the second housing 120 may include a main body portion 121 and a pen end portion 122, and the pen end portion 122 is connected to an end that is of the main body portion 121 and that is away from the first housing 110. It may be understood that the main body portion 121 is in an elongated shape and may extend along the axis O1 of the electronic device 1000, to facilitate holding. An end portion that is of the pen end portion 122 and that is away from the main body portion 121 may be electrically conductive, and is used to tap a touchscreen, write on the touchscreen, or the like. It may be understood that the second housing 120 may be an integrally-formed mechanical part. In other words, the main body portion 121 and the pen end portion 122 may form an integrated structure by using an integrated molding process. Alternatively, the second housing 120 may be a spliced mechanical part. For example, the main body portion 121 and the pen end portion 122 may form an integrated mechanical part through splicing (for example, by using a tenon process or a buckle process) or fastening (for example, by using a soldering process, a bonding process, or the like).

[0120] As shown in FIG. 15 and FIG. 16, the first housing 110 may have a first recessed portion 1101. The first recessed portion 1101 may be formed by recessing the peripheral side face of the first housing 110 toward a center of the first housing 110. The base 400 may have a second recessed portion 402. The second recessed portion 402 may be formed by recessing a part of the peripheral side face 102 of the base 400 toward a center of the base 400. The second housing 120 may have a third recessed portion 1202. The third recessed portion 1202 may be formed by recessing the peripheral side face of the second housing 120 toward a center of the second housing 120. It may be understood that when the first housing 110, the base 400, and the second housing 120 are assembled, the first recessed portion 1101, the second recessed portion 402, and the third recessed portion 1202 may be aligned. This facilitates positioning and assembly of the first housing 110, the base 400, and the second housing 120. In addition, the first recessed portion 1101, the second recessed portion 402, and the third recessed portion 1202 may jointly form a long-bar-shaped recessed area on the electronic device 1000, to facilitate holding by a user.

[0121] FIG. 17 is a partial cross-sectional view of the electronic device 1000 shown in FIG. 15 at A-A.

[0122] As shown in FIG. 16 and FIG. 17, the first housing 110 may include an end cover 111 and a side wall 112. The side wall 112 may be connected to a periphery of the end cover 111, and extend in a direction along an axis O1 of the electronic device 1000. An end face of the end cover 111 may form the end face 101 of the electronic device 1000. An outer surface of the side wall 112 may form a part of the peripheral side face 102 of the electronic device 1000.

[0123] For example, the end cover 111 may include a top portion 1111 and a connection portion 1112. The connection portion 1112 is located on a side that is of the top portion 1111 and that faces the second housing 120, and is connected to the top portion 1111. In FIG. 17, a dashed line is used to schematically distinguish between the top portion 1111 and the connection portion 1112. The side wall 112 may be sleeved on the connection portion 1112, and is connected to the connection portion 1112 and the top portion 1111. For example, the top portion 1111 of the end cover 111 may be located on a side that is of the side wall 112 and that faces away from the second housing 120, and the connection portion 1112 of the end cover 111 may be located on an inner side of the side wall 112. An outer surface of the top portion 1111 may form the end face 101 of the electronic device 1000. It may be understood that the end cover 111 may be an integrally-formed mechanical part. In other words, the top portion 1111 and the connection portion 1112 may form an integrated structure by using an integrated molding process. Alternatively, the end cover 111 may be a spliced mechanical part. For example, the top portion 1111 and the connection portion 1112 may form an integrated mechanical part through splicing (for example, by using a tenon process or a buckle process) or fastening (for example, by using a soldering process, a bonding process, or the like).

[0124] For example, the end cover 111 may be provided with a second communication hole 1113. The second communication hole 1113 penetrates the end cover 111 along the axis O1 of the electronic device 1000. In other words, the second communication hole 1113 may penetrate the top portion 1111 and the connection portion 1112. An opening at an end that is of the second communication hole 1113 and that is away from the second housing 120 may form a first sound pickup port 11 of the electronic device 1000.

[0125] As shown in FIG. 16 and FIG. 17, both the microphone 200 and the circuit board 500 are located on an inner side of the first housing 110. The end cover 111 of the first housing 110, the circuit board 500, and the microphone 200 may be arranged along the axis O1 of the electronic device 1000. The circuit board 500 may be connected to a microphone circuit board 22 and the end cover 111 of the first housing 110.

[0126] For example, a first soldering portion 51 may be disposed on a side surface that is of the circuit board 500 and that faces away from the end cover 111. A second soldering portion (not shown in the figure) may be disposed on the microphone circuit board 22. The first soldering portion 51 and the second soldering portion may be disposed opposite to each other, and are fastened in a soldering manner, so that the microphone 200 may be fastened to and electrically connected to the circuit board 500. The circuit board 500 may be fastened to the end cover 111 through an adhesive 52, glue dispensing, a threaded connection, or the like. The first soldering portion 51 of the circuit board 500 may be further connected to a wire, so that the circuit board 500 may be electrically connected to another component of the electronic device 1000 through the wire.

[0127] For example, the circuit board 500 may be provided with a first communication hole 501. The first communication hole 501 may penetrate the circuit board 500 along the axis O1 of the electronic device 1000. The first communication hole 501 of the circuit board 500 may communicate with the second communication hole 1113 of the end cover 111. The first communication hole 501 of the circuit board 500 may further communicate with a first sound pickup hole 221 (refer to FIG. 2) of the microphone 200, to communicate with a first chamber 201 of the microphone 200. For example, a first sound channel 13 may be formed by using a mechanical part of the electronic device 1000, for example, may be formed by using the first housing 110 and the circuit board 500 of the electronic device 1000. The first communication hole 501 is a part of the first sound channel 13, and the second communication hole 1113 is another part of the first sound channel 13. The adhesive 52 may be disposed around the second communication hole 1113 and is in a sealing connection to the end cover 111 and the circuit board 500, to prevent a sound from leaking through a gap between the end cover 111 and the circuit board 500. The first communication hole 501 and the second communication hole 1113 may jointly form the first sound channel 13 of the electronic device 1000. It may be understood that, because the adhesive 52 is thin, a part that is of the first sound channel 13 and that is formed by a through hole on the adhesive 52 may be ignored. The first sound pickup port 11 of the electronic device 1000 may communicate with the first chamber 201 of the microphone 200 through the first sound channel 13.

[0128] It may be understood that the first sound channel 13 may be formed by using a mechanical part of the electronic device 1000, for example, may be formed by using the first housing 110 and the circuit board 500 of the electronic device 1000.

[0129] As shown in FIG. 16 and FIG. 17, the base 400 may include a separator 41 and a package plate 42. The package plate 42 is fastened to the separator 41, and is located on a side that is of the separator 41 and that is away from the first housing 110. The package plate 42 is located between the separator 41 and the second housing 120. A peripheral side face of the separator 41 may be a part of the peripheral side face of the base 400, and a peripheral side face of the package plate 42 may be a part of the peripheral side face 102 of the base 400. In another embodiment, the package plate 42 may be located on an inner side of the second housing 120, and the peripheral side face of the package plate 42 may be located on an inner side of the peripheral side face of the base 400. It may be understood that the base 400 may be an integrally-formed mechanical part. In other words, the separator 41 and the package plate 42 may form an integrated structure by using an integrated molding process. Alternatively, the base 400 may be a spliced mechanical part. For example, the separator 41 and the package plate 42 may form an integrated mechanical part through splicing (for example, by using a mortise and tenon process or a snap-fit process) or fastening (for example, by using a soldering process, a bonding process, or the like).

[0130] In this embodiment, the package plate 42 may be an adhesive. In this way, the package plate 42 may not only fit the separator 41 to form an internal sound channel of the electronic device 1000, but also be configured to connect the separator 41 to the second housing 120. The package plate 42 serves multiple purposes.

[0131] FIG. 18 is a diagram of a structure of a partial structure of the electronic device 1000 shown in FIG. 15 from a different perspective. For example, FIG. 15 shows structures such as the first housing 110, the separator 41, and the circuit board 500.

[0132] As shown in FIG. 17 and FIG. 18, the separator 41 may be provided with a through hole 411, and a plurality of first grooves 412 and a plurality of second grooves 413 that are spaced from each other. The through hole 411 penetrates the separator 41 along the axis O1 of the electronic device 1000. The plurality of first grooves 412 and the plurality of second grooves 413 may be arranged on a side that is of the through hole 411 and that faces the package plate 42. The second grooves 413 may communicate with the through hole 411 and the plurality of first grooves 412. The second grooves 413 may be configured to mount the acoustic resistance mesh 300.

[0133] For example, the through hole 411 may penetrate a bottom wall of the second groove 413. The first groove 412 may penetrate a part of a side wall 112 of the second groove 413. One end of each of the plurality of first grooves 412 communicates with the second groove 413, the one end of each of the plurality of first grooves 412 may communicate with the through hole 411 through the second groove 413, and the other end of each of the plurality of first grooves 412 may extend to the peripheral side face of the separator 41.

[0134] As shown in FIG. 17 and FIG. 18, openings of the plurality of first grooves 412 are located on a side surface that is of the separator 41 and that faces the package plate 42. The package plate 42 may cover the first grooves 412. Groove openings that are of the first groove 412 and that are located on the peripheral side face of the separator 41 and a part of an edge of the peripheral side face of the package plate 42 jointly enclose second sound pickup ports 12. Inner walls of the first grooves 412 and a partial area of a surface of the package plate 42 jointly enclose second sound channels 14, and the through hole 411 communicates with the second sound channels 14 and a second chamber 202 of the microphone 200.

[0135] In this embodiment of this application, the separator 41 is provided with the plurality of first grooves 412, and the package plate 42 covers the first grooves 412, so that the package plate 42 and the inner walls of the first grooves 412 jointly enclose the second sound channels 14 and the second sound pickup ports 12. The second sound channel 14 and the second sound pickup port 12 may be formed through disassembly processing. A molding process of the second sound channel 14 and the second sound pickup port 12 is simple and easy to process. This helps increase a product yield.

[0136] In this embodiment of this application, the second sound pickup port 12 is located on the peripheral side face 102 of the base 400, and the second sound channel 14 is located inside the base 400. Molding structures of the second sound pickup port 12 and the second sound channel 14 may be implemented by using the foregoing embodiment. Alternatively, the second sound channel 14 and the second sound pickup port 12 may be separately formed by the separator 41, and the second sound pickup port 12 is located on an outer peripheral side face of the separator 41.

[0137] For example, openings of the second grooves 413 are located on the side surface that is of the separator 41 and that faces the package plate 42. The package plate 42 may further cover the second grooves 413. The package plate 42, inner walls of the second grooves 413, and a hole wall of the through hole 411 jointly enclose a converged sound channel 15. The converged sound channel 15 communicates with the second chamber 202 of the microphone 200 and the plurality of second sound channels 14.

[0138] For example, the separator 41 may include a bottom plate portion 4101 and a protruding portion 4102. The protruding portion 4102 is connected to the bottom plate portion 4101, and is located on a side that is of the bottom plate portion 4101 and that faces away from the package plate 42. In FIG. 17, a dashed line is used to schematically distinguish between the bottom plate portion 4101 and the protruding portion 4102. It may be understood that the separator 41 may be an integrally-formed mechanical part. In other words, the bottom plate portion 4101 and the protruding portion 4102 may form an integrated structure by using an integrated molding process. Alternatively, the separator 41 may be a spliced mechanical part. For example, the bottom plate portion 4101 and the protruding portion 4102 may form an integrated mechanical part through splicing (for example, by using a tenon process or a buckle process) or fastening (for example, by using a soldering process, a bonding process, or the like).

[0139] For example, the bottom plate portion 4101 and the protruding portion 4102 may be approximately cylindrical, and a diameter of the protruding portion 4102 is less than that of the bottom plate portion 4101. The side wall 112 of the first housing 110 may be sleeved on the protruding portion 4102 and connected to the protruding portion 4102 and the bottom plate portion 4101. For example, the bottom plate portion 4101 of the separator 41 may be located on a side that is of the side wall 112 and that faces away from the first housing 110, and the protruding portion 4102 of the separator 41 may be located on an inner side of the side wall 112. The through hole 411, the plurality of first grooves 412, and the plurality of second grooves 413 of the separator 41 may be provided on the protruding portion 4102. An outer surface of the protruding portion 4102 may form a part of the peripheral side face of the base 400.

[0140] For example, a side surface that is of the microphone 200 and that faces away from the circuit board 500 may be further connected to the separator 41 of the base 400 through an adhesive 43, glue dispensing, a threaded connection, or the like. The adhesive 43 may be disposed around the through hole 411 and is in a sealing connection to the protruding portion 4102 of the separator 41 and the microphone 200, to prevent a sound from leaking through a gap between the protruding portion 4102 of the separator 41 and the microphone 200. It may be understood that, because the adhesive 43 is thin, a part that is of the converged sound channel 15 and that is formed by a through hole on the adhesive 43 may be ignored. The through hole 411 of the separator 41 may communicate with a second sound pickup hole 211 of the microphone 200, to communicate with the second chamber 202 of the microphone 200. The separator 41 may be further fastened to the first housing 110 through an adhesive, glue dispensing, a threaded connection, or the like, and tightly press the microphone 200.

[0141] In this embodiment, the first sound pickup port 11 is provided on the end face 101 of the electronic device 1000, the plurality of second sound pickup ports 12 are provided on the peripheral side face 102, the first sound pickup port 11 communicates with the first chamber 201 of the microphone 200, and the plurality of second sound pickup ports 12 communicate with the second chamber 202 of the microphone 200, so that a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. A vector obtained by adding the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone 200. The microphone 200 of the electronic device 1000 can better receive a sound from the direction of sensitivity of the microphone 200, in other words, the microphone 200 can implement directional sound pickup, so that the electronic device 1000 can implement directional sound pickup. In addition, the microphone 200 may adjust a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone 200.

[0142] As shown in FIG. 17 and FIG. 18, the acoustic resistance mesh 300 may be mounted in the second groove 413 and cover the through hole 411. For example, the acoustic resistance mesh 300 may be fastened to the bottom wall of the second groove 413 through an adhesive 31, glue dispensing, or the like. In this case, the acoustic resistance mesh 300 may be disposed in the converged sound channel 15, so that a sound wave entering from the second sound pickup port 12 enters the second chamber 202 of the microphone 200 through the acoustic resistance mesh 300 and acts on the other side of a diaphragm 231 of the microphone 200. It may be understood that, because the second groove 413 is located at a joint of the plurality of second sound channels 14, the acoustic resistance mesh 300 may also be located at the joint of the plurality of second sound channels 14. The acoustic resistance mesh 300 may simultaneously adjust sound waves from the plurality of second sound channels 14, and adjustment consistency is high and an adjustment effect is good. The acoustic resistance mesh 300 may also be located at the joint of the plurality of second sound channels 14. The acoustic resistance mesh 300 may simultaneously adjust sound waves from the plurality of second sound channels 14, and adjustment consistency is high and an adjustment effect is good.

[0143] In this embodiment, the acoustic resistance mesh 300 is disposed in the converged sound channel 15, so that an amplitude value and a phase of sound pressure that is acted on the other side of the diaphragm by a sound wave entering the converged sound channel 15 from the plurality of second sound pickup ports 12 can be changed. A damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility, enabling the microphone 200 to obtain a good directionality and improve its directional sound pickup effect. For example, an amplitude value of a sound wave entering the second chamber 202 of the microphone 200 can be decreased or increased by increasing or decreasing the damping factor of the acoustic resistance mesh 300, so that a sound pressure difference between the amplitude value of the sound wave in the second chamber 202 of the microphone 200 and an amplitude value of a sound wave in the first chamber 201 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. A principle of adjusting the damping factor of the acoustic resistance mesh 300 to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again.

[0144] In another embodiment, the electronic device 1000 may further include a damper (not shown in the figure). The damper may be disposed on a path from the first sound pickup port 11 to the first chamber 201 of the microphone 200. Specifically, the damper may be disposed on a side that is of the circuit board 500 and that faces away from the microphone 200. It may be understood that a material and a structure of the damper may be the same as a material and a structure of the acoustic resistance mesh 300. An amplitude value of a sound wave entering the first chamber 201 of the microphone 200 can be decreased or increased by increasing or decreasing a damping factor of the damper, so that a sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and an amplitude value of a sound wave in the second chamber 202 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. In addition, the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and the amplitude value of the sound wave in the second chamber 202 of the microphone 200 may be adjusted by adjusting both damping factors of the acoustic resistance mesh 300 and the damper, so that the microphone 200 is adjusted to the required cardioid directionality or 8-shaped directionality, and adjustment flexibility is good.

[0145] FIG. 19 is a polar coordinate diagram of a directivity characteristic of the electronic device 1000 shown in FIG. 15 at an operating frequency of 1000 Hz.

[0146] As shown in FIG. 19, the direction of sensitivity of the microphone 200 is along the axis O1 of the electronic device 1000, and the direction of sensitivity of the microphone 200 may coincide with a connection line between a 0° direction and a 180° direction in FIG. 19. In this case, the electronic device 1000 may receive sounds from the 0° direction and the 180° direction, and suppress sounds from a 90° direction and a 270° direction. In other words, the electronic device 1000 may receive a sound from a direction along the axis O1 of the electronic device 1000, and suppress a sound from the peripheral side face 102 of the electronic device 1000, so that the microphone 200 can implement directional sound pickup.

[0147] It may be understood that lengths of acoustic paths through which sound waves from the 0° direction and the 180° direction reach the first sound pickup port 11 and the second sound pickup ports 12 are the longest, and a sound pressure difference between the sound waves from the 0° direction and the 180° direction on two sides of the diaphragm 231 of the microphone 200 is the largest. The microphone 200 is sensitive to the sound waves from the 0° direction and the 180° direction, so that the electronic device 1000 can receive the sounds from the 0° direction and the 180° direction. Lengths of acoustic paths through which sound waves from the 90° direction and the 270° direction reach the first sound pickup port 11 and the second sound pickup ports 12 are the shortest, and a sound pressure difference between the sound waves from the 90° direction and the 270° direction on the two sides of the diaphragm 231 of the microphone 200 is the smallest. The microphone 200 is the least sensitive to the sound waves from the 90° direction and the 270° direction, so that the electronic device 1000 can suppress the sounds from the 90° direction and the 270° direction.

[0148] In this embodiment, the electronic device 1000 is provided with the first sound pickup port 11 and the plurality of second sound pickup ports 12 to perform sound pickup, to implement directional sound pickup of the microphone 200 in the direction along the axis O1 of the electronic device 1000. When the electronic device 1000 is used for sound pickup, the user holds the electronic device 1000, and the first sound pickup port 11 faces a sound source (for example, a mouth of the user) along the axis O1 of the electronic device 1000. In this case, the direction of sensitivity of the microphone 200 is along the axis O1 of the electronic device 1000, and the microphone 200 can implement directional sound pickup in the direction along the axis O1 of the electronic device 1000, and suppress a sound from a periphery of the electronic device 1000.

[0149] It should be noted that, if the direction of sensitivity of the microphone 200 coincides with a connection line between the 90° direction and the 270° direction in FIG. 18, the lengths of the acoustic paths through which the sound waves from the 90° direction and the 270° direction reach the first sound pickup port 11 and the second sound pickup ports 12 are the longest, so that the electronic device 1000 can receive the sounds from the 90° direction and the 270° direction. The sound waves from the 0° direction and the 180° direction simultaneously reach the first sound pickup port 11 and the second sound pickup ports 12, so that the electronic device 1000 can suppress the sounds from the 0° direction and the 180° direction.

[0150] It should be noted that, in the foregoing embodiment, the converged sound channel 15 is disposed in the electronic device 1000 to communicate with the second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converged sound channel 15 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0151] As shown in FIG. 16 to FIG. 18, the separator 41 may have a first channel 414. The first channel 414 is spaced from the through hole 411 of the separator 41, and may penetrate the separator 41 in the axial direction of the electronic device 1000. The second housing 120 has a second channel 1203. The second channel 1203 may penetrate the second housing 120 along the axis O1 of the electronic device 1000, and the second channel 1203 communicates with the first channel 414 of the separator 41.

[0152] In this embodiment, the electronic device 1000 may further include a processor (not shown in the figure). The processor may be located on an inner side of the second housing 120. A wire may pass through the first channel 414 and the second channel 1203 to electrically connect the circuit board 500 to the processor of the electronic device 1000. In another embodiment, the electronic device 1000 does not include the circuit board 500, and the microphone circuit board 22 may be electrically connected to the processor of the electronic device 1000.

[0153] It may be understood that a battery (not shown in the figure) may be further disposed inside the second housing 120. The battery may be electrically connected to the microphone circuit board 22. The battery may be configured to supply power to the microphone 200. A Bluetooth communication module (not shown in the figure) may be further disposed inside the second housing 120. The Bluetooth communication module may be configured to implement a communication connection between the electronic device 1000 and another electronic device 1000.

[0154] In the foregoing embodiment, the first sound channel 13, the second sound channel 14, and the converged sound channel 15 of the electronic device 1000 are mainly obtained by assembling a plurality of mechanical parts (for example, the first housing 110, the base 400, and the circuit board 500) in the electronic device 1000 to form splicing space. Structures are simple, and a quantity of mechanical parts can be reduced. This helps simplify a manufacturing process of the electronic device 1000 and reduce costs. In another embodiment of this application, the sound channels of the electronic device 1000 may alternatively be obtained by disposing a separate mechanical part. The following provides example descriptions with reference to related accompanying drawings.

[0155] FIG. 20 is a diagram of a structure of a sound pickup apparatus 600 according to an embodiment of this application.

[0156] As shown in FIG. 20, the sound pickup apparatus 600 may include a first pipe 61, a plurality of second pipes 62, a converging pipe 63, and a microphone 200. The first pipe 61 is located on one side of the microphone 200. The plurality of second pipes 62 are located on the other side of the microphone 200. The converging pipe 63 may be located between the microphone 200 and the plurality of second pipes 62. A structure of the microphone 200 in this embodiment is similar to that of the microphone 200 in any one of the foregoing embodiments. For related descriptions of the microphone 200, refer to related descriptions of the microphone 200 in any one of the foregoing embodiments. Details are not described herein again.

[0157] For example, a first sound channel 13 may be formed in the first pipe 61 of the sound pickup apparatus 600. The first sound channel 13 may communicate with a first chamber 201 of the microphone 200. Second sound channels 14 may be formed in the second pipes 62 of the sound pickup apparatus 600. For example, inlets 141 of the plurality of second sound channels 14 are staggered. A converged sound channel 15 may be formed in the converging pipe 63 of the sound pickup apparatus 600. The converged sound channel 15 may communicate with the second sound channels 14 and a second chamber 202 of the microphone 200, so that the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The converged sound channel 15 is formed by disposing the converging pipe 63 in the sound pickup apparatus 600, and the converged sound channel 15 communicates with a second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converging pipe 63 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the second sound channels 14 in the plurality of second pipes 62 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0158] In this embodiment, a plurality of vectors may be formed between an inlet of the first sound channel 13 of the sound pickup apparatus 600 and the inlets of the plurality of second sound channels 14. The plurality of vectors may be superimposed based on a vector addition principle, and a sum obtained by adding the plurality of vectors is consistent with a direction of sensitivity of the microphone 200. The microphone 200 can better receive a sound from the direction of sensitivity of the microphone 200. In other words, the microphone 200 can implement directional sound pickup, so that the electronic device 1000 can implement directional sound pickup. In addition, positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 may fit a shape of the pen-type device, so that when the pen-type device is used for sound pickup, the pen-type device may match different holding habits of a user, to better receive a voice of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0159] For example, inlets 141 of at least two second sound channels 14 in the plurality of second sound channels 14 face different directions. It may be understood that an orientation of the inlet 141 of the second sound channel 14 is a direction that is in a vertical direction of a plane on which the inlet 141 of the second sound channel 14 is located and that faces the outside of the electronic device 1000. The inlets of the plurality of second sound channels 14 may be disposed in non-coplanar areas. This helps better arrange positions of the inlets of the plurality of second sound channels 14, and improves disposing flexibility of the sound pickup apparatus 600.

[0160] For example, a center of an inlet 131 of the first sound channel 13 may be located on an axis O2 of the first pipe 61. The inlets 141 of the plurality of second sound channels 14 are coplanar, and lengths of connection lines between the inlets 141 of the plurality of second sound channels 14 and the inlet 131 of the first sound channel 13 are equal. In this case, the inlets 141 of the plurality of second sound channels 14 are centrosymmetrically distributed relative to the axis O2 of the first pipe 61. The plurality of vectors formed between the inlets 141 of the plurality of second sound channels 14 and the inlet 131 of the first sound channel 13 are centrosymmetrically distributed relative to the axis O2 of the first pipe 61 and have a same magnitude. Components that are of the plurality of vectors and that are parallel to the axis O2 of the first pipe 61 may be superimposed, and components that are of the plurality of vectors and that are perpendicular to the axis O2 of the first pipe 61 may completely cancel each other. In this case, the sum obtained by superimposing the plurality of vectors is along the axis O2 of the first pipe 61. In other words, the direction of sensitivity of the microphone 200 is along the axis O2 of the first pipe 61, and the microphone 200 can implement directional sound pickup in a direction along the axis O2 of the first pipe 61, so that the electronic device 1000 can implement directional sound pickup. It should be understood that, in this embodiment of this application, a position of the inlet 141 of the second sound channel 14 is mainly limited by using a center of the inlet 141 of the second sound channel 14 as a reference. That the inlets 141 of the plurality of second sound channels 14 are coplanar means that centers of the inlets 141 of the plurality of second sound channels 14 are coplanar.

[0161] In some embodiments, the center of the inlet 131 of the first sound channel 13 is located on the axis O2 of the first pipe 61. There may be two inlets 141 of the second sound channels 14. A plane on which the two inlets 141 of the second sound channels 14 are located is at an acute angle or an obtuse angle with the axis O2 of the first pipe 61. In some other embodiments, the center of the inlet 131 of the first sound channel 13 is located on the axis O2 of the first pipe 61. There may be four inlets 141 of the second sound channels 14, and at least one inlet 141 of the second sound channels 14 is not coplanar with another inlet 141 of the second sound channels 14. It may be understood that the sound pickup apparatus 600 may adjust a sound pickup direction of the sound pickup apparatus 600 by adjusting relative positions of inlets 141 of the plurality of second sound channels 14 and the inlet 131 of the first sound channel 13, so that the sound pickup direction of the sound pickup apparatus 600 is at an acute angle or an obtuse angle with the axis O2 of the first pipe 61.

[0162] In some other embodiments, the center of the inlet 131 of the first sound channel 13 may alternatively be staggered from the axis O2 of the first pipe 61.

[0163] As shown in FIG. 20, the sound pickup apparatus 600 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed in the converging pipe 63. In other words, the acoustic resistance mesh 300 may be disposed in the converged sound channel 15. It may be understood that, the acoustic resistance mesh 300 is disposed in the converged sound channel 15, so that an amplitude value and a phase of sound pressure that is acted on the other side of a diaphragm of the microphone 200 by a sound wave entering the converged sound channel 15 from the plurality of second sound pickup ports 12 can be changed. A damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility, enabling the microphone 200 to obtain a good directionality and improve its directional sound pickup effect. For example, an amplitude value of a sound wave entering the second chamber 202 of the microphone 200 can be decreased or increased by increasing or decreasing the damping factor of the acoustic resistance mesh 300, so that a sound pressure difference between the amplitude value of the sound wave in the second chamber 202 of the microphone 200 and an amplitude value of a sound wave in the first chamber 201 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. A principle of adjusting the damping factor of the acoustic resistance mesh 300 to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again.

[0164] In this embodiment, the sound pickup apparatus 600 may further include a damper (not shown in the figure). The damper may be disposed in the first pipe 61. In other words, the damper may be disposed in the first sound channel 13. It may be understood that a material and a structure of the damper may be the same as a material and a structure of the acoustic resistance mesh 300. An amplitude value of a sound wave entering the first chamber 201 of the microphone 200 can be decreased or increased by increasing or decreasing a damping factor of the damper, so that a sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and an amplitude value of a sound wave in the second chamber 202 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. In addition, the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and the amplitude value of the sound wave in the second chamber 202 of the microphone 200 may be adjusted by adjusting both damping factors of the acoustic resistance mesh 300 and the damper, so that the microphone 200 is adjusted to the required cardioid directionality or 8-shaped directionality, and adjustment flexibility is good.

[0165] The sound pickup apparatus 600 in the foregoing embodiment may be used in the electronic device 1000 that needs to implement directional sound pickup by using the microphone 200. The following describes an electronic device 1000 including the sound pickup apparatus 600 shown in FIG. 20 with reference to related accompanying drawings.

[0166] FIG. 21 is a diagram of a structure of the electronic device 1000 including the sound pickup apparatus 600 shown in FIG. 20 according to an embodiment.

[0167] As shown in FIG. 21, the electronic device 1000 may have an exterior surface 10. The exterior surface 10 may have a first sound pickup port 11 and a plurality of second sound pickup ports 12. The plurality of second sound pickup ports 12 are spaced from each other, and each second sound pickup port 12 is spaced from the first sound pickup port 11.

[0168] The sound pickup apparatus 600 may be located inside the electronic device 1000. The first sound pickup port 11 is disposed opposite to and communicates with the inlet 131 of the first sound channel 13 of the sound pickup apparatus 600, so that the first sound pickup port 11 communicates with the first chamber 201 of the microphone 200. A sound wave enters the first chamber 201 of the microphone 200 from the first sound pickup port 11 of the electronic device 1000, and acts on one side of the diaphragm 231 of the microphone 200. The plurality of second sound pickup ports 12 are disposed opposite to and communicate with the inlets 141 of the plurality of second sound channels 14 of the sound pickup apparatus 600 in a one-to-one correspondence, so that the plurality of second sound pickup ports 12 communicate with the second chamber 202 of the microphone 200. A sound wave enters the second chamber 202 of the microphone 200 from the plurality of second sound pickup ports 12 of the electronic device 1000, and acts on the other side of the diaphragm 231 of the microphone 200.

[0169] A plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000. A direction of each sound pickup vector is from a corresponding second sound pickup port 12 to the first sound pickup port 11, and a magnitude of each sound pickup vector is positively correlated with a length of a path from the corresponding second sound pickup port 12 to the first sound pickup port 11. A sum of the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone 200. It may be understood that the direction of sensitivity of the microphone 200 depends on the sum of the plurality of sound pickup vectors.

[0170] In this embodiment, the electronic device 1000 is provided with the first sound pickup port 11 and the plurality of second sound pickup ports 12. The first sound pickup port 11 is disposed opposite to and communicates with the inlet 131 of the first sound channel 13 of the sound pickup apparatus 600, and the plurality of second sound pickup ports 12 are disposed opposite to and communicate with the inlets 141 of the plurality of second sound channels 14 of the sound pickup apparatus 600 in a one-to-one correspondence. In this way, the electronic device 1000 can implement directional sound pickup in a target direction by using the sound pickup apparatus 600. A principle of implementing directional sound pickup by using the sound pickup apparatus 600 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again. For example, the electronic device 1000 may implement directional sound pickup in the direction along the axis O2 of the first pipe 61 of the sound pickup apparatus 600 by using the sound pickup apparatus 600, and suppress a sound from a direction perpendicular to the axis O2 of the first pipe 61 of the sound pickup apparatus 600. In addition, the electronic device 1000 may further implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality of the microphone 200 by using the sound pickup apparatus 600. A principle of adjusting the damping factor of the acoustic resistance mesh 300 to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again.

[0171] In some embodiments, a mounting position of the sound pickup apparatus 600 inside the electronic device 1000 is adjusted, and positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 of the electronic device 1000 are correspondingly adjusted, so that the axis O2 of the first pipe 61 of the sound pickup apparatus 600 may be parallel to a required sound pickup direction of the electronic device 1000, to implement directional sound pickup of the microphone 200 in the target direction.

[0172] With reference to related accompanying drawings, the foregoing mainly describes how to implement directional sound pickup of the microphone 200 when the pen-type device is a pen-type device. With reference to related accompanying drawings, the following specifically describes how to implement directional sound pickup of the microphone 200 when the electronic device 1000 is a glasses-type device.

[0173] FIG. 22 is a diagram of a structure of another electronic device 1000 in an embodiment according to this application. For example, the electronic device 1000 may be a glasses-type device. For example, the electronic device 1000 may be augmented reality (augmented reality, AR) glasses, an AR helmet, or virtual reality (virtual reality, VR) glasses.

[0174] As shown in FIG. 22, the electronic device 1000 may include a frame temple 71, a frame 72, and a microphone 200. There may be two frame temples 71 that are respectively connected to two ends of the frame 72. A structure of the microphone 200 in this embodiment is similar to that of the microphone 200 in any one of the foregoing embodiments. For related descriptions of the microphone 200, refer to related descriptions of the microphone 200 in any one of the foregoing embodiments. Details are not described herein again.

[0175] For example, a first end face 713 is disposed at an end portion that is of the frame temple 71 and that is connected to the frame 72. A second end face 714 is disposed at an end portion that is of the frame temple 71 and that is away from the frame 72. A side face 715 connecting the first end face 713 and the second end face 714 is further disposed on the frame temple 71. It may be understood that the side face 715 of the frame temple 71 may be a curved surface, or may be formed by a plurality of interconnected planes.

[0176] For example, the side face 715 of the frame temple 71 extends in an extension direction of the frame temple 71. It may be understood that the extension direction of the frame temple 71 may change with a specific shape of the frame temple 71. For example, the frame temple 71 may include an extension portion 711 and a hanger portion 712. The hanger portion 712 may be bent relative to the extension portion 711. In other words, the hanger portion 712 and the extension portion 711 form an included angle. An end that is of the extension portion 711 and that is away from the hanger portion 712 may be connected to the frame 72. The first end face 713 is located at an end portion that is of the extension portion 711 and that is connected to the frame 72, and the second end face 714 is located at an end portion that is of the frame temple 71 and that is away from the frame 72. In this case, an extension direction of the extension portion 711 of the frame temple 71 is in a length direction of the extension portion 711. An extension direction of the hanger portion 712 of the frame temple 71 is in a length direction of the hanger portion 712. The extension direction of the extension portion 711 of the frame temple 71 intersects the extension direction of the hanger portion 712 of the frame temple 71. The extension direction of the frame temple 71 may also be a length direction of the frame temple 71. In other words, the extension direction of the frame temple 71 may be an arrangement direction of the extension portion 711 and the hanger portion 712.

[0177] As shown in FIG. 22, the microphone 200 may be located inside the frame temple 71. For example, the microphone 200 may be located at the extension portion 711 of the frame temple 71. The microphone 200 is disposed closer to the first end face 713 than the second end face 714. The first end face 713 of the frame temple 71 may be provided with a first sound pickup port 11. The side face 715 of the frame temple 71 may be provided with a plurality of second sound pickup ports 12 spaced from each other. For example, the plurality of second sound pickup ports 12 may be located at the extension portion 711 of the frame temple 71. The plurality of second sound pickup ports 12 are disposed closer to the first end face 713 than the second end face 714.

[0178] In this embodiment, the first sound pickup port 11 that communicates with the first chamber 201 of the microphone 200 is provided on the first end face 713 of the electronic device 1000, the plurality of second sound pickup ports 12 that are spaced from each other and that communicate with the second chamber 202 of the microphone 200 are provided on the side face 715, and a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, and a vector obtained by adding the plurality of sound pickup vectors is consistent with a direction of sensitivity of the microphone 200. The microphone 200 can better receive a sound from the direction of sensitivity of the microphone 200. In other words, the microphone 200 can implement directional sound pickup of the microphone 200 in a target direction, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone 200. For a principle of implementing directional sound pickup by the microphone 200, refer to related descriptions of any possible implementation of the foregoing embodiment. Details are not described herein again.

[0179] For example, at least two second sound pickup ports 12 face different directions. It may be understood that an orientation of the second sound pickup port 12 is a direction that is in a vertical direction of a plane on which the second sound pickup port 12 is located and that faces the outside of the electronic device 1000. The plurality of second sound pickup ports 12 may be disposed in non-coplanar areas. This helps better arrange positions of the plurality of second sound pickup ports 12, and improves disposing flexibility of the electronic device 1000.

[0180] For example, a first sound channel 13, a plurality of second sound channels 14, and a converged sound channel 15 are disposed inside the frame temple 71. It may be understood that the first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may be formed by the frame temple 71. The first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may alternatively be formed by disposing a separate mechanical part on an inner side of the frame temple 71. The first sound channel 13 communicates with the first sound pickup port 11 and the first chamber 201 of the microphone 200. The plurality of second sound channels 14 are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports 12. The plurality of second sound channels 14 further communicate with the second chamber 202 of the microphone 200.

[0181] It should be noted that, in the foregoing embodiment, the converged sound channel 15 is disposed in the electronic device 1000 to communicate with the second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converged sound channel 15 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0182] As shown in FIG. 22, a center of the first sound pickup port 11 may be located at a center of the first end face 713 of the frame temple 71, and the plurality of second sound pickup ports 12 may be centrosymmetrically distributed relative to the extension direction of the frame temple 71. In this case, the direction of sensitivity of the microphone 200 is parallel to the extension direction of the frame temple 71. The microphone 200 can better receive a sound from a direction parallel to the extension direction of the frame temple 71. The microphone 200 can implement directional sound pickup in the direction parallel to the extension direction of the frame temple 71. For example, the direction of sensitivity of the microphone 200 is parallel to the extension direction of the extension portion 711 of the frame temple 71. The microphone 200 can implement directional sound pickup in the direction parallel to the extension direction of the extension portion 711.

[0183] In another embodiment, the plurality of second sound pickup ports 12 may alternatively be non-centrosymmetrically distributed relative to the extension direction of the frame temple 71.

[0184] In another embodiment, the center of the first sound pickup port 11 may alternatively be staggered from the center of the first end face 713 of the frame temple 71.

[0185] As shown in FIG. 22, the electronic device 1000 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed in the converged sound channel 15. It may be understood that, the acoustic resistance mesh 300 is disposed in the converged sound channel 15, so that an amplitude value and a phase of sound pressure that is acted on the other side of the diaphragm by a sound wave entering the converged sound channel 15 from the plurality of second sound pickup ports 12 can be changed. A damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility enabling the microphone 200 to obtain a good directionality and improve its directional sound pickup effect. For example, an amplitude value of a sound wave entering the second chamber 202 of the microphone 200 can be decreased or increased by increasing or decreasing the damping factor of the acoustic resistance mesh 300, so that a sound pressure difference between the amplitude value of the sound wave in the second chamber 202 of the microphone 200 and an amplitude value of a sound wave in the first chamber 201 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. A principle of adjusting the damping factor of the acoustic resistance mesh 300 to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again.

[0186] In some embodiments, the electronic device 1000 may further include a damper (not shown in the figure). The damper may be disposed in the first sound channel 13. It may be understood that a material and a structure of the damper may be the same as a material and a structure of the acoustic resistance mesh 300. An amplitude value of a sound wave entering the first chamber 201 of the microphone 200 can be decreased or increased by increasing or decreasing a damping factor of the damper, so that a sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and an amplitude value of a sound wave in the second chamber 202 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. In addition, the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and the amplitude value of the sound wave in the second chamber 202 of the microphone 200 may be adjusted by adjusting both damping factors of the acoustic resistance mesh 300 and the damper, so that the microphone 200 is adjusted to the required cardioid directionality or 8-shaped directionality, and adjustment flexibility is good.

[0187] FIG. 23 is a diagram of a structure of another electronic device 1000 in an embodiment according to this application. For example, the electronic device 1000 may be a glasses-type device. For example, the electronic device 1000 may be augmented reality (augmented reality, AR) glasses, an AR helmet, or virtual reality (virtual reality, VR) glasses.

[0188] As shown in FIG. 23, the another electronic device 1000 provided in this application is similar to the glasses-type device in the foregoing embodiment. A difference lies in that positions of the microphone 200, the plurality of sound channels, the first sound pickup port 11, and the plurality of second sound pickup ports 12 in the electronic device 1000 in this embodiment are different. The following mainly describes the different solution. For other structures of the electronic device 1000 in this embodiment and a manner of disposing the structures, refer to related descriptions of any possible implementation of the foregoing glasses-type device. Details are not described herein again. For example, for structures and disposing manners of the frame temple 71 and the frame 72, refer to related descriptions of any possible implementation of the foregoing glasses-type device. Details are not described herein again.

[0189] As shown in FIG. 23, the microphone 200 may be located inside the frame temple 71. For example, the microphone 200 may be located at the hanger portion 712 of the frame temple 71. The microphone 200 is disposed closer to the second end face 714 than the first end face 713. The second end face 714 of the frame temple 71 may be provided with the first sound pickup port 11. The side face 715 of the frame temple 71 may be provided with the plurality of second sound pickup ports 12 spaced from each other. For example, the plurality of second sound pickup ports 12 may be located at the hanger portion 712 of the frame temple 71. The plurality of second sound pickup ports 12 are disposed closer to the second end face 714 than the first end face 713.

[0190] In this embodiment, the first sound pickup port 11 that communicates with the first chamber 201 of the microphone 200 is provided on the second end face 714 of the electronic device 1000, the plurality of second sound pickup ports 12 that are spaced from each other and that communicate with the second chamber 202 of the microphone 200 are provided on the side face 715, and a plurality of sound pickup vectors may be formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, to implement directional sound pickup of the microphone 200 in a target direction, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone 200. For a principle of implementing directional sound pickup by the microphone 200, refer to related descriptions of any possible implementation of the foregoing embodiment. Details are not described herein again.

[0191] For example, a first sound channel 13, a plurality of second sound channels 14, and a converged sound channel 15 are disposed inside the frame temple 71. It may be understood that the first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may be formed by the frame temple 71. The first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may alternatively be formed by disposing a separate mechanical part on an inner side of the frame temple 71. The first sound channel 13 communicates with the first sound pickup port 11 and the first chamber 201 of the microphone 200. The plurality of second sound channels 14 are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports 12. The plurality of second sound channels 14 further communicate with the second chamber 202 of the microphone 200.

[0192] It should be noted that, in the foregoing embodiment, the converged sound channel 15 is disposed in the electronic device 1000 to communicate with the second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converged sound channel 15 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0193] As shown in FIG. 23, a center of the first sound pickup port 11 may be located at a center of the second end face 714 of the frame temple 71, and the plurality of second sound pickup ports 12 may be centrosymmetrically distributed relative to the extension direction of the frame temple 71. In this case, the direction of sensitivity of the microphone 200 is parallel to the extension direction of the frame temple 71. The microphone 200 can better receive a sound from a direction parallel to the extension direction of the frame temple 71. The microphone 200 can implement directional sound pickup in the direction parallel to the extension direction of the frame temple 71. For example, the direction of sensitivity of the microphone 200 is parallel to the extension direction of the hanger portion 712 of the frame temple 71. The microphone 200 can implement directional sound pickup in the direction parallel to the extension direction of the hanger portion 712.

[0194] In another embodiment, the plurality of second sound pickup ports 12 may alternatively be non-centrosymmetrically distributed relative to the extension direction of the frame temple 71.

[0195] In another embodiment, the center of the first sound pickup port 11 may alternatively be staggered from the center of the first end face 713 of the frame temple 71.

[0196] With reference to related accompanying drawings, the foregoing mainly describes how to implement directional sound pickup when the electronic device 1000 is a pen-type device or a glasses-type device. With reference to related accompanying drawings, the following specifically describes how to implement directional sound pickup of the microphone 200 when the electronic device 1000 is a tablet-type device.

[0197] FIG. 24 is a diagram of a structure of another electronic device 1000 in an embodiment according to this application. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smartwatch, or the like.

[0198] As shown in FIG. 24, the electronic device 1000 may include a housing 100, a display 800, and a microphone 200. The display 800 may be mounted on the housing 100. The microphone 200 may be mounted inside the housing 100.

[0199] For example, the housing 100 may include a first side face 103, a second side face 104, and a bottom face 105 connecting the first side face 103 and the second side face 104. The first side face 103 is connected to the second side face 104, and the bottom face 105 is disposed opposite to the display 800.

[0200] For example, the first side face 103 has a first sound pickup port 11. The second side face 104 has at least one second sound pickup port 12. The first side face 103 or the bottom face 105 has at least one second sound pickup port 12. It may be understood that, in this embodiment, at least one second sound pickup port 12 is located on the second side face 104, and at least one second sound pickup port 12 is located on the first side face 103 or the bottom face 105. In this way, at least two second sound pickup ports 12 of the electronic device 1000 face different directions.

[0201] For example, a first sound channel 13, a plurality of second sound channels 14, and a converged sound channel 15 may be disposed inside the housing 100. It may be understood that the first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may be formed by the housing 100. The first sound channel 13, the plurality of second sound channels 14, and the converged sound channel 15 may alternatively be formed by disposing a separate mechanical part on an inner side of the housing 100. The first sound channel 13 may communicate with the first sound pickup port 11 and a first chamber 201 of the microphone 200. A sound wave may enter a second chamber 202 of the microphone 200 from the first sound pickup port 11 through the first sound channel 13, and act on one side of a diaphragm 231 of the microphone 200. The plurality of second sound channels 14 are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports 12, and the converged sound channel 15 may communicate with the plurality of second sound channels 14 and the second chamber 202 of the microphone 200, so that the plurality of second sound pickup ports 12 may communicate with the second chamber 202 of the microphone 200. A sound wave may enter the second chamber 202 of the microphone 200 from the plurality of second sound pickup ports 12 of the electronic device 1000 through the second sound channel 14 and the converged sound channel 15, and act on the other side of the diaphragm 231 of the microphone 200.

[0202] A plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, to implement directional sound pickup of the microphone 200 in a target direction, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing a direction of sensitivity of the microphone 200. For a principle of implementing directional sound pickup by the microphone 200, refer to related descriptions of any possible implementation of the foregoing embodiment. Details are not described herein again. In addition, positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 may fit a shape of a tablet-type device, so that when the tablet-type device is used for sound pickup, the tablet-type device may match a use habit of a user, and the direction of sensitivity of the microphone 200 may face the front of the user. Therefore, the tablet-type device can better receive a sound from the front of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0203] It should be noted that, in the foregoing embodiment, the converged sound channel 15 is disposed in the electronic device 1000 to communicate with the second sound pickup hole 211 of the microphone 200 and the plurality of second sound channels 14, so that the plurality of second sound channels 14 may communicate with the second chamber 202 of the microphone 200 through the converged sound channel 15. The microphone 200 needs to be provided with only one second sound pickup hole 211 to simultaneously communicate with the plurality of second sound channels 14. A manner in which the plurality of second sound channels 14 communicate with the second chamber 202 of the microphone 200 is simple and convenient. In addition, a manufacturing process of the microphone 200 can be simplified. In another embodiment, the converged sound channel 15 may not be disposed in the electronic device 1000. The microphone 200 may be provided with a plurality of second sound pickup holes 211, and the plurality of second sound pickup holes 211 communicate with the plurality of second sound channels 14 in a one-to-one correspondence, so that each second sound pickup port 12 may communicate with the second chamber 202 of the microphone 200 through the corresponding second sound channel 14.

[0204] As shown in FIG. 24, the electronic device 1000 may further include an acoustic resistance mesh 300. The acoustic resistance mesh 300 may be disposed in the converged sound channel 15. It may be understood that, the acoustic resistance mesh 300 is disposed in the converged sound channel 15, so that an amplitude value and a phase of sound pressure that is acted on the other side of the diaphragm by a sound wave entering the converged sound channel 15 from the plurality of second sound pickup ports 12 can be changed. A damping factor of the acoustic resistance mesh 300 is adjusted, so that the microphone 200 may implement adjustment of a cardioid directionality, a supercardioid directionality, or an 8-shaped directionality with high adjustment flexibility enabling the microphone 200 to obtain a good directionality and improve its directional sound pickup effect. For example, an amplitude value of a sound wave entering the second chamber 202 of the microphone 200 can be decreased or increased by increasing or decreasing the damping factor of the acoustic resistance mesh 300, so that a sound pressure difference between the amplitude value of the sound wave in the second chamber 202 of the microphone 200 and an amplitude value of a sound wave in the first chamber 201 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. A principle of adjusting the damping factor of the acoustic resistance mesh 300 to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200 is described in detail in the foregoing embodiment. For details, refer to related descriptions in the foregoing embodiment. Details are not described herein again.

[0205] In some embodiments, the electronic device 1000 may further include a damper (not shown in the figure). The damper may be disposed in the first sound channel 13. It may be understood that a material and a structure of the damper may be the same as a material and a structure of the acoustic resistance mesh 300. An amplitude value of a sound wave entering the first chamber 201 of the microphone 200 can be decreased or increased by increasing or decreasing a damping factor of the damper, so that a sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and an amplitude value of a sound wave in the second chamber 202 of the microphone 200 is adjusted, to implement the cardioid directionality, the supercardioid directionality, or the 8-shaped directionality of the microphone 200. In addition, the sound pressure difference between the amplitude value of the sound wave in the first chamber 201 of the microphone 200 and the amplitude value of the sound wave in the second chamber 202 of the microphone 200 may be adjusted by adjusting both damping factors of the acoustic resistance mesh 300 and the damper, so that the microphone 200 is adjusted to the required cardioid directionality or 8-shaped directionality, and adjustment flexibility is good.

[0206] FIG. 25 is a diagram of a structure of another electronic device 1000 in an embodiment according to this application. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smartwatch, or the like.

[0207] As shown in FIG. 25, the another electronic device 1000 provided in this application is similar to the tablet-type device in the foregoing embodiment. A difference lies in that a position of a first sound pickup port 11 in the electronic device 1000 in this embodiment is different. The following mainly describes the different solution. For other structures of the electronic device 1000 in this embodiment and a manner of disposing the structures, refer to related descriptions of any possible implementation of the foregoing tablet-type device. Details are not described herein again. For example, for a structure of a housing 100 and a manner of disposing the housing 100 and a display 800, refer to related descriptions of any possible implementation of the foregoing tablet-type device. Details are not described herein again.

[0208] In this embodiment, a second side face 104 has a first sound pickup port 11. A first side face 103 has at least one second sound pickup port 12. The second side face 104 or a bottom face 105 has at least one second sound pickup port 12. It may be understood that, in this embodiment, at least one second sound pickup port 12 is located on the first side face 103, and at least one second sound pickup port 12 is located on the second side face 104 or the bottom face 105. In this way, at least two second sound pickup ports 12 of the electronic device 1000 face different directions.

[0209] A plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, to implement directional sound pickup of the microphone 200 in a target direction, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing a direction of sensitivity of the microphone 200. For a principle of implementing directional sound pickup by the microphone 200, refer to related descriptions of any possible implementation of the foregoing embodiment. Details are not described herein again. In addition, positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 may fit a shape of a tablet-type device, so that when the tablet-type device is used for sound pickup, the tablet-type device may match a use habit of a user, and the direction of sensitivity of the microphone 200 may face the front of the user. Therefore, the tablet-type device can better receive a sound from the front of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0210] FIG. 26 is a diagram of a structure of another electronic device 1000 in an embodiment according to this application. For example, the electronic device 1000 may be a tablet, a drawing board, a mobile phone, a smartwatch, or the like.

[0211] As shown in FIG. 26, the another electronic device 1000 provided in this application is similar to the tablet-type device in the foregoing embodiment. A difference lies in that a position of a first sound pickup port 11 in the electronic device 1000 in this embodiment is different. The following mainly describes the different solution. For other structures of the electronic device 1000 in this embodiment and a manner of disposing the structures, refer to related descriptions of any possible implementation of the foregoing tablet-type device. Details are not described herein again. For example, for a structure of a housing 100 and a manner of disposing the housing 100 and a display 800, refer to related descriptions of any possible implementation of the foregoing tablet-type device. Details are not described herein again.

[0212] In this embodiment, there is a first sound pickup port 11 at a joint between a first side face 103 and a second side face 104. The first side face 103 has at least one second sound pickup port 12. The second side face 104 or a bottom face 105 has at least one second sound pickup port 12. It may be understood that, in this embodiment, at least one second sound pickup port 12 is located on the first side face 103, and at least one second sound pickup port 12 is located on the second side face 104 or the bottom face 105. In this way, at least two second sound pickup ports 12 of the electronic device 1000 face different directions.

[0213] A plurality of sound pickup vectors are respectively formed between the plurality of second sound pickup ports 12 and the first sound pickup port 11 of the electronic device 1000. The plurality of sound pickup vectors may be superimposed based on a vector addition principle, to implement directional sound pickup of a microphone 200 in a target direction, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12 and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing a direction of sensitivity of the microphone 200. For a principle of implementing directional sound pickup by the microphone 200, refer to related descriptions of any possible implementation of the foregoing embodiment. Details are not described herein again. In addition, positions of the first sound pickup port 11 and the plurality of second sound pickup ports 12 may fit a shape of a tablet-type device, so that when the tablet-type device is used for sound pickup, the tablet-type device may match a use habit of a user, and the direction of sensitivity of the microphone 200 may face the front of the user. Therefore, the tablet-type device can better receive a sound from the front of the user and effectively shield impact of ambient noise, thereby improving user experience.

[0214] In some embodiments, the display 800 may further have a third sound pickup port. A third sound channel may be disposed inside the housing 100. The third sound channel may be formed by the housing 100, or may be formed by disposing a separate mechanical part on an inner side of the housing 100. The third sound channel communicates with the third sound pickup port and a converged sound channel 15, so that the third sound pickup port may communicate with a second chamber 202 of the microphone 200. A sound wave may enter the second chamber 202 of the microphone 200 from a plurality of third sound pickup ports of the electronic device 1000 through the third sound channel and the converged sound channel 15, and act on the other side of a diaphragm 231 of the microphone 200. It may be understood that a function of the third sound pickup port is similar to a function of the second sound pickup port 12, and a sound pickup vector may also be formed between the third sound pickup port and the first sound pickup port 11. A vector formed by adding the sound pickup vector formed between the third sound pickup port and the first sound pickup port 11 and a sound pickup vector formed between the second sound pickup port and the first sound pickup port 11 is consistent with the direction of sensitivity of the microphone 200. The microphone 200 of the electronic device 1000 can better receive a sound from the direction of sensitivity of the microphone 200, in other words, the microphone 200 can implement directional sound pickup, so that the electronic device 1000 can implement directional sound pickup. In addition, a position relationship between the plurality of second sound pickup ports 12, the third sound pickup port, and the first sound pickup port 11 may be adjusted, to adjust a direction of a sound pickup vector, thereby changing the direction of sensitivity of the microphone 200.

[0215] It should be noted that all the foregoing accompanying drawings are example figures of this application, and do not represent actual sizes of products. In addition, a size proportional relationship between components in the accompanying drawings is not intended to limit an actual product in this application either.

[0216] The foregoing descriptions are merely a part of implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. An electronic device (1000), wherein the electronic device (1000) has an exterior surface (10), the exterior surface (10) has a first sound pickup port (11) and a plurality of second sound pickup ports (12) spaced from each other, and each second sound pickup port (12) is spaced from the first sound pickup port (11); and a microphone (200), a first sound channel (13), and a plurality of second sound channels (14) are disposed inside the electronic device (1000), the first sound channel (13) communicates with the first sound pickup port (11) and a first chamber (201) of the microphone (200), the plurality of second sound channels (14) are in a one-to-one correspondence with and communicate with the plurality of second sound pickup ports (12), the second sound channel (14) communicates with a second chamber (202) of the microphone (200), and the first chamber (201) of the microphone (200) and the second chamber (202) of the microphone (200) are respectively located on two sides of a diaphragm (231) of the microphone (200).

2. The electronic device (1000) according to claim 1, wherein a converged sound channel (15) is further disposed inside the electronic device (1000), and the converged sound channel (15) communicates with the plurality of second sound channels (14) and the second chamber (202) of the microphone (200); and the electronic device (1000) further comprises an acoustic resistance mesh (300), and the acoustic resistance mesh (300) is disposed in the converged sound channel (15).

3. The electronic device (1000) according to claim 1, wherein the electronic device (1000) is a pen-type device; and the exterior surface (10) comprises an end face (101) and a peripheral side face (102) connected to a periphery of the end face (101), the end face (101) intersects an axis (O1) of the electronic device (1000), the peripheral side face (102) is disposed around the axis (O1) of the electronic device (1000), the microphone (200) is located on an inner side of the peripheral side face (102), the first sound pickup port (11) is located on the end face (101), and the plurality of second sound pickup ports (12) are located on the peripheral side face (102).

4. The electronic device (1000) according to claim 3, wherein a direction of sensitivity of the microphone (200) is parallel to the axis (O1) of the electronic device (1000).

5. The electronic device (1000) according to claim 4, wherein the plurality of second sound pickup ports (12) are coplanar, and a plane on which the plurality of second sound pickup ports (12) are located is perpendicular to the axis (O1) of the electronic device (1000).

6. The electronic device (1000) according to claim 5, wherein a center of the first sound pickup port (11) is located on the axis (O1) of the electronic device (1000), and the plurality of second sound pickup ports (12) are centrosymmetrically distributed relative to the axis (O1) of the electronic device (1000).

7. The electronic device (1000) according to claim 4, wherein there are two or three second sound pickup ports (12), and a plane on which all the second sound pickup ports (12) are located is at an acute angle or an obtuse angle with the axis (O1) of the electronic device (1000); or there are more than three second sound pickup ports (12), and at least one second sound pickup port (12) is not coplanar with another second sound pickup port (12).

8. The electronic device (1000) according to any one of claims 3 to 7, wherein the electronic device (1000) comprises a first housing (110), a second housing (120), and a base (400), and the first housing (110), the base (400), and the second housing (120) are arranged along the axis (O1) of the electronic device (1000); the end face (101) is formed on a side surface that is of the first housing (110) and that faces away from the second housing (120), and a peripheral side face of the first housing (110), a peripheral side face of the base (400), and a peripheral side face of the second housing (120) jointly form at least a part of the peripheral side face (102); and the microphone (200) is located on an inner side of the first housing (110), the second sound pickup port (12) is located on the peripheral side face (102) of the base (400), and the second sound channel (14) is located on the base (400).

9. The electronic device (1000) according to claim 8, wherein the base (400) comprises a separator (41) and a package plate (42), and the package plate (42) is fastened to the separator (41), and is located on a side that is of the separator (41) and that is away from the first housing (110); the separator (41) is provided with a through hole (411) and a plurality of first grooves (412) spaced from each other, the through hole (411) penetrates the separator (41) along the axis (O1) of the electronic device (1000), openings of the plurality of first grooves (412) are located on a side surface that is of the separator (41) and that faces the package plate (42), one end of each of the plurality of first grooves (412) communicates with the through hole (411), and the other end of each of the plurality of first grooves (412) extends to a peripheral side face (102) of the separator (41); and the package plate (42) covers the first grooves (412), and the package plate (42) and inner walls of the first grooves (412) jointly enclose the second sound channels (14) and the second sound pickup ports (12), and the through hole (411) communicates with the second sound channels (14) and the second chamber (202) of the microphone (200).

10. The electronic device (1000) according to claim 9, wherein the separator (41) of the base (400) further comprises second grooves (413), the second grooves (413) are arranged on a side that is of the through hole (411) and that faces the package plate (42), and communicate with the through hole (411) and the plurality of first grooves (412), and the second grooves (413) are configured to mount the acoustic resistance mesh (300).

11. The electronic device (1000) according to claim 8, wherein the electronic device (1000) further comprises a circuit board (500), and the circuit board (500) is located on the inner side of the first housing (110); and the circuit board (500) is provided with a first communication hole (501), the first communication hole (501) penetrates the circuit board (500) along the axis (O1) of the electronic device (1000), and the first communication hole (501) is a part of the first sound channel (13).

12. The electronic device (1000) according to claim 11, wherein the first housing (110) comprises an end cover (111) and a side wall (112), the side wall (112) is connected to a periphery of the end cover (111), and the side wall (112) extends along the axis (O1) of the electronic device (1000); the end cover (111), the circuit board (500), and the microphone (200) are arranged along the axis (O1) of the electronic device (1000), and the circuit board (500) is connected to the end cover (111) and a circuit board (22) of the microphone (200); and the end cover (111) is provided with a second communication hole (1113), the second communication hole (1113) penetrates the end cover (111) along the axis (O1) of the electronic device (1000), and the second communication hole (1113) is another part of the first sound channel (13).

13. The electronic device (1000) according to claim 1 or 2, wherein the electronic device (1000) is a glasses-type device, the electronic device (1000) comprises a frame temple (71) and a frame (72), and the frame temple (71) is connected to the frame (72); and the microphone (200), the first sound channel (13), and the plurality of second sound channels (14) are located inside the frame temple (71); and a first end face (713) is disposed at an end portion that is of the frame temple (71) and that is connected to the frame (72), a side face (715) connected to the first end face (713) is further disposed on the frame temple (71), and the side face (715) extends in an extension direction of the frame temple (71); and the first sound pickup port (11) is located on the first end face (713), and the plurality of second sound pickup ports (12) are located on the side face (715); or a second end face (714) is disposed at an end portion that is of the frame temple (71) and that is away from the frame (72), a side face (715) connected to the second end face (714) is further disposed on the frame temple (71), and the side face (715) extends in an extension direction of the frame temple (71); and the first sound pickup port (11) is located on the second end face (714), and the plurality of second sound pickup ports (12) are located on the side face (715).

14. The electronic device (1000) according to claim 13, wherein a direction of sensitivity of the microphone (200) is parallel to the extension direction of the frame temple (71).

15. The electronic device (1000) according to claim 1 or 2, wherein the electronic device (1000) is a tablet-type device, the electronic device (1000) comprises a housing (100) and a display (800), and the display (800) is mounted on the housing (100); and the microphone (200), the first sound channel (13), and the plurality of second sound channels (14) are located inside the housing (100); the housing (100) comprises a first side face (103), a second side face (104), and a bottom face (105) connected to the first side face (103) and the second side face (104), the first side face (103) is connected to the second side face (104), and the bottom face (105) is disposed opposite to the display (800); and the first sound pickup port (11) is located on the first side face (103), at least one second sound pickup port (12) is located on the second side face (104), and at least one second sound pickup port (12) is located on the first side face (103) or the bottom face (105); or the first sound pickup port (11) is located on the second side face (104), at least one second sound pickup port (12) is located on the first side face (103), and at least one second sound pickup port (12) is located on the second side face (104) or the bottom face (105); or the first sound pickup port (11) is located at a joint between the first side face (103) and the second side face (104), at least one second sound pickup port (12) is located on the first side face (103), and at least one second sound pickup port (12) is located on the second side face (104) or the bottom face (105).

16. A sound pickup apparatus (600), used in an electronic device (1000), wherein the sound pickup apparatus (600) comprises a first pipe (61), a microphone (200), and a plurality of second pipes (62), the first pipe (61) is located on one side of the microphone (200), and the plurality of second pipes (62) are located on the other side of the microphone (200); a first sound channel (13) is formed in the first pipe (61), and the first sound channel (13) communicates with a first chamber (201) of the microphone (200); and second sound channels (14) are formed in the second pipes (62), the plurality of second sound channels (14) all communicate with a second chamber (202) of the microphone (200), and inlets (141) of the plurality of second sound channels (14) are staggered.

17. The sound pickup apparatus (600) according to claim 16, wherein the sound pickup apparatus (600) further comprises a converging pipe (63), the converging pipe (63) is located between the microphone (200) and the plurality of second pipes (62), a converged sound channel (15) is formed in the converging pipe (63), and the converged sound channel (15) communicates with the second sound channel (14) and the second chamber (202) of the microphone (200); and the sound pickup apparatus (600) further comprises an acoustic resistance mesh (300), and the acoustic resistance mesh (300) is disposed in the converging pipe (63).

18. The sound pickup apparatus (600) according to claim 16, wherein inlets (141) of at least two of the plurality of second sound channels (14) face different directions.

19. The sound pickup apparatus (600) according to claim 18, wherein the inlets (141) of the plurality of second sound channels (14) are coplanar, and lengths of connection lines between the inlets (141) of the plurality of second sound channels (14) and an inlet (131) of the first sound channel (13) are equal.

20. An electronic device (1000), comprising the sound pickup apparatus (600) according to any one of claims 16 to 19, wherein the sound pickup apparatus (600) is located inside the electronic device (1000); and the electronic device (1000) has an exterior surface (10), the exterior surface (10) has a first sound pickup port (11) and a plurality of second sound pickup ports (12), the first sound pickup port (11) is disposed opposite to and communicates with the inlet (131) of the first sound channel (13) of the sound pickup apparatus (600), and the plurality of second sound pickup ports (12) are disposed opposite to and communicate with the inlets (141) of the plurality of second sound channels (14) of the sound pickup apparatus (600) in a one-to-one correspondence.

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