Wearable devices and directional sound pickup methods

Abstract

The present application discloses a wearable device and a directional sound pickup method, which belong to the technical field of communication equipment. The wearable device includes a sound pickup device, a wearable body, and a switching mechanism. The wearable body has a first sound pickup port, a second sound pickup port, a first sound pickup channel, and a second sound pickup channel. The sound pickup device and the switching mechanism are arranged on the wearable body. The first end of the first sound pickup channel is connected to the sound pickup device, the second end of the first sound pickup channel is connected to the first sound pickup port, the first end of the second sound pickup channel is connected to the first sound pickup channel, and the second end of the second sound pickup channel is connected to the second sound pickup port; the first sound pickup port faces the first direction, the second sound pickup port faces the second direction, and the first direction and the second direction intersect. When the switching mechanism is in the first state, the switching mechanism blocks the first sound pickup channel; when the switching mechanism is in the second state, the switching mechanism blocks the second sound pickup channel. This solution can solve the problem of poor audio collection effect of the sound pickup device.

Description

Technical Field

[0001] The present application belongs to the technical field of communication equipment, and specifically relates to a wearable device and a directional sound pickup method. Background Art

[0002] With the development of science and technology, earphones are used more and more widely and have more and more functions, becoming one of the necessities in people's daily life. At present, earphones generally have the function of audio collection, but the sound pickup direction of earphones is fixed, resulting in poor audio collection effect. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a wearable device and a directional sound pickup method, which can solve the problem of poor audio collection effect of current sound pickup devices.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] A wearable device comprising:

[0006] Pickup device,

[0007] The wearable body has a first sound pickup port, a second sound pickup port, a first sound pickup channel, and a second sound pickup channel. A sound pickup device is disposed on the wearable body. A first end of the first sound pickup channel is connected to the sound pickup device, a second end of the first sound pickup channel is connected to the first sound pickup port, a first end of the second sound pickup channel is connected to the first sound pickup channel, and a second end of the second sound pickup channel is connected to the second sound pickup port. The first sound pickup port and the second sound pickup port have different orientations.

[0008] The switching mechanism is arranged on the wearable body, and the switching mechanism can switch between a first state and a second state. When the switching mechanism is in the first state, the switching mechanism blocks the first sound pickup channel, and the second sound pickup channel connects the sound pickup device and the second sound pickup port; when the switching mechanism is in the second state, the switching mechanism blocks the second sound pickup channel, and the first sound pickup channel connects the sound pickup device and the first sound pickup port.

[0009] Based on the wearable device described in the present invention, the present invention also provides a directional sound pickup method. The directional sound pickup method includes:

[0010] Determine whether there is a target object within a preset range of the direction of the second sound pickup port;

[0011] When there is a target object within a preset range of the direction of the second sound pickup port, the state of the switching mechanism is adjusted so that the wearable device picks up sound through the second sound pickup port.

[0012] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0013] In the wearable device disclosed in the embodiment of the present invention, the wearable body is provided with a first sound pickup port and a second sound pickup port, and the first sound pickup port and the second sound pickup port are respectively oriented in two different directions, so that the sound pickup device in the sound pickup device can pick up sounds in different directions through the first sound pickup port and the second sound pickup port respectively, which is beneficial for the wearable device to enhance the sound in the first direction or the second direction and improve the audio collection effect of the sound pickup device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of a wearable device according to some embodiments of the present invention;

[0015] Figure 2 is a front view of a wearable device according to some embodiments of the present invention;

[0016] Explanation of the accompanying drawings: 100-sound pickup device; 200-wearable body; 210-first sound pickup port; 220-second sound pickup port; 230-first sound pickup channel; 240-second sound pickup channel; 250-sound range cavity; 251-normal sound range sub-cavity; 252-ultrasonic sound range sub-cavity; 260-ultrasonic sound output port; 300-switching mechanism; 310-rotating paddle; 320-flexible head; 400-sound-generating device; 500-in-ear structure. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0018] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0019] The following combination Figure 1 and Figure 2 , the wearable device provided in the embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0020] Reference Figure 1 and Figure 2 The wearable device described in some embodiments of the present invention includes a sound pickup device 100, a wearable body 200, and a switching mechanism 300. The wearable body 200 is a basic structural component that can provide a mounting base for other components in the wearable device.

[0021] Reference Figure 1 In some optional embodiments, the wearable body 200 has a first sound pickup port 210, a second sound pickup port 220, a first sound pickup channel 230, and a second sound pickup channel 240. The sound pickup device 100 is disposed on the wearable body 200. A first end of the first sound pickup channel 230 communicates with the sound pickup device 100, and a second end of the first sound pickup channel 230 communicates with the first sound pickup port 210, so that the sound pickup device 100 can collect audio through the first sound pickup channel 230. A first end of the second sound pickup channel 240 communicates with the first sound pickup channel 230, and a second end of the second sound pickup channel 240 communicates with the second sound pickup port 220, so that the sound pickup device 100 can collect audio through the second sound pickup channel 240.

[0022] Optionally, the orientation of the first sound pickup port 210 is different from that of the second sound pickup port 220 , that is, the first sound pickup port 210 and the second sound pickup port 220 face two different directions, so that the sound pickup device 100 can collect audio from two different directions through the first sound pickup port 210 and the second sound pickup port 220 respectively.

[0023] In some optional embodiments, a switching mechanism 300 is provided on the wearable body 200, and the switching mechanism 300 can switch between a first state and a second state. When the switching mechanism 300 is in the first state, the switching mechanism 300 blocks the first sound pickup channel 230, and the second sound pickup channel 240 connects the sound pickup device 100 and the second sound pickup port 220, so that the sound pickup device 100 can collect audio through the second sound pickup channel 240 and the second sound pickup port 220. When the switching mechanism 300 is in the second state, the switching mechanism 300 blocks the second sound pickup channel 240, and the first sound pickup channel 230 connects the sound pickup device 100 and the first sound pickup port 210, so that the sound pickup device 100 can collect audio through the first sound pickup channel 230 and the first sound pickup port 210.

[0024] For example, when it is necessary to enhance the audio in the first direction, the switching mechanism 300 is controlled to switch to the second state, so that the switching mechanism 300 blocks the second sound pickup channel 240, thereby allowing the sound pickup device 100 to collect audio through the first sound pickup channel 230 and the first sound pickup port 210. Because the first sound pickup port 210 faces the first direction, it is beneficial to enhance the audio in the first direction and achieve audio collection in the first direction.

[0025] For example, when it is necessary to enhance the audio in the second direction, the switching mechanism 300 is controlled to switch to the first state, so that the switching mechanism 300 blocks the first sound pickup channel 230, thereby allowing the sound pickup device 100 to collect audio through the second sound pickup channel 240 and the second sound pickup port 220. Because the second sound pickup port 220 faces the second direction, it is beneficial to enhance the audio in the second direction and achieve audio collection in the second direction.

[0026] The wearable device described in the above embodiment can switch the direction of the sound pickup device 100 collecting audio through the switching mechanism 300. Specifically, the state of the switching mechanism 300 can be controlled as needed to adjust the direction of the sound pickup device 100 collecting audio, thereby achieving directional sound pickup.

[0027] In some optional embodiments, the switching mechanism 300 includes a rotating paddle 310 rotatably disposed at the junction of the first sound pickup channel 230 and the second sound pickup channel 240. The rotating paddle 310 can be switched between a first angle and a second angle relative to the wearable body 200. When the rotating paddle 310 is rotated to the first angle relative to the wearable body 200, the switching mechanism 300 is in a first state. When the rotating paddle 310 is rotated to the second angle relative to the wearable body 200, the switching mechanism 300 is in a second state.

[0028] For example, the rotating paddle 310 has a raised portion. When the rotating paddle 310 is rotated to a first angle relative to the wearable body 200, the raised portion of the rotating paddle 310 projects into the first sound pickup channel 230 and blocks the first sound pickup channel 230. When the rotating paddle 310 is rotated to a second angle relative to the wearable body 200, the raised portion of the rotating paddle 310 projects into the second sound pickup channel 240 and blocks the second sound pickup channel 240.

[0029] In the above embodiment, the rotating paddle 310 is provided at the connection point between the first sound pickup channel 230 and the second sound pickup channel 240. By rotating the rotating paddle 310 relative to the wearable body 200, the rotating paddle 310 can be used to block the first sound pickup channel 230 and the second sound pickup channel 240, respectively. This means that the two sound pickup channels can be blocked and connected using a single rotating paddle 310, which helps simplify the internal structure of the wearable device and improves the utilization rate of the rotating paddle 310. Furthermore, this embodiment can ensure that when the first sound pickup channel 230 is connected, the second sound pickup channel 240 is blocked; and when the second sound pickup channel 240 is connected, the first sound pickup channel 230 is blocked. Therefore, this solution helps reduce the difficulty of switching the sound pickup direction and improves the efficiency of switching the sound pickup direction of the wearable device.

[0030] In other optional embodiments, the wearable device includes two rotating paddles 310, one disposed on the first sound pickup channel 230 and the other disposed on the second sound pickup channel 240, so as to control the opening and closing of the first sound pickup channel 230 and the second sound pickup channel 240 respectively through the two rotating paddles 310. For example, if it is necessary to enhance the first-direction audio, the rotating paddle 310 disposed on the first sound pickup channel 230 is rotated to connect the first sound pickup channel 230, and the rotating paddle 310 disposed on the second sound pickup channel 240 is rotated to block the second sound pickup channel 240. If it is necessary to enhance the second-direction audio, the rotating paddle 310 disposed on the first sound pickup channel 230 is rotated to block the first sound pickup channel 230, and the rotating paddle 310 disposed on the second sound pickup channel 240 is rotated to connect the second sound pickup channel 240.

[0031] Reference Figure 1 In some embodiments, the switching mechanism 300 further includes a flexible head 320. Exemplarily, the flexible head 320 is disposed on the rotating paddle 310, and the rotating paddle 310 can drive the flexible head 320 to move relative to the wearable body 200. Alternatively, the rotating paddle 310 can cause the flexible head 320 to deform, so that at least a portion of the flexible head 320 can move relative to the wearable body 200. Further, optionally, when the rotating paddle 310 is rotated to a first angle relative to the wearable body 200, at least a portion of the flexible head 320 protrudes toward the first sound pickup channel 230, and the flexible head 320 is in sealing engagement with the inner sidewall of the first sound pickup channel 230. When the rotating paddle 310 is rotated to a second angle relative to the wearable body 200, at least a portion of the flexible head 320 protrudes toward the second sound pickup channel 240, and the flexible head 320 is in sealing engagement with the inner sidewall of the second sound pickup channel 240.

[0032] In the above embodiment, the flexible head 320 can be sealed against the inner sidewall of the first sound pickup channel 230 or the second sound pickup channel 240 by rotating the paddle 310 to switch the direction of audio collection by the wearable device. Furthermore, the sealed engagement of the flexible head 320 with the inner sidewall of the first sound pickup channel 230 or the second sound pickup channel 240 helps prevent deformation of the inner sidewall of the first sound pickup channel 230 or the second sound pickup channel 240 caused by the flexible head 320, thereby preventing the switching mechanism 300 from damaging the acoustic performance of the first sound pickup channel 230 or the second sound pickup channel 240.

[0033] Reference Figure 1In an optional embodiment, the flexible head 320 is sleeved over the rotating paddle 310, thereby forming a sealed engagement with the inner wall of the first sound pickup channel 230 or the inner wall of the second sound pickup channel 240. This embodiment allows the flexible head 320 to block the assembly gap between the rotating paddle 310 and the wearable body 200, thereby preventing audio signals from leaking through the gap and improving audio collection.

[0034] In some optional embodiments, the switching mechanism 300 further includes a driver connected to the rotating paddle 310, capable of driving the rotating paddle 310 to switch between a first angle and a second angle relative to the wearable device 200. For example, the driver can be a motor. In this embodiment, the driver can drive the rotating paddle 310 to rotate relative to the wearable device 200 to adjust the sound pickup direction.

[0035] In other optional embodiments, the rotating paddle 310 can also be manually turned. For example, the rotating paddle 310 has an operating portion, the wearable body 200 has a clearance opening, and the operating portion is at least partially located within the clearance opening, so that the user can turn the rotating paddle 310 relative to the wearable body 200 by turning the operating portion.

[0036] Reference Figure 1 In some optional embodiments, the wearable device further includes a sound-generating device 400, and the wearable body 200 has a sound range cavity 250 and an ultrasonic sound-generating port 260. The sound-generating device 400 is disposed in the sound range cavity 250, and the ultrasonic sound-generating port 260 is connected to the sound range cavity 250, and the direction of the ultrasonic sound-generating port 260 is the same as the direction of the second sound pickup port 220.

[0037] In an exemplary usage scenario, when a user wears a wearable device, the ultrasonic sound outlet 260 is facing forward of the user to measure the distance between the object and the wearer by ultrasound. The object may be a person or object located in front of the wearer. Exemplarily, when the wearable device is measuring the distance between the object and the wearer, the sound-emitting device 400 emits an ultrasonic wave so that the ultrasonic wave can propagate in the direction of the ultrasonic sound outlet 260. When the ultrasonic wave encounters a person or object located in the second direction, it is reflected to the wearable device. The wearable device receives the reflected ultrasonic wave and determines the distance between the object and the user based on the time interval between the wearable device emitting the ultrasonic wave and receiving the ultrasonic wave.

[0038] For example, when the wearable device is performing ultrasonic ranging, while the sound-emitting device 400 is emitting ultrasonic waves, the switching mechanism 300 switches to the first state, allowing the reflected ultrasonic waves to pass through the second sound pickup port 220 and the second sound pickup channel 240 to reach the sound pickup device 100, where they are then received by the sound pickup device 100. The sound pickup device 100 in this embodiment can not only collect audio for the user to listen to, but also perform ultrasonic ranging, thus achieving multi-functionality.

[0039] In some optional embodiments, the wearable device may emit ultrasonic waves for ranging at a preset frequency, so that the wearable device can promptly detect whether there is a target object within the sound pickup range in front of the user, and control the state of the switching mechanism 300 based on the detection result. The target object in this embodiment may be a person or object located in the second direction of the wearable device.

[0040] When the distance between the target object and the wearer is within a preset range, the switching mechanism 300 is triggered to switch the sound pickup direction. For example, when the distance between the target object and the wearer is within the preset range, the switching mechanism 300 switches from the second state to the first state, allowing the wearable device to directionally collect the sound emitted by the target object. The preset range is the range within which the wearable device can normally collect audio.

[0041] If the distance between the target object and the wearer exceeds the preset range, that is, the target object is beyond the normal sound pickup range of the wearable device, the state of the switching mechanism 300 can remain unchanged. Of course, in some embodiments, if the distance between the target object and the wearer exceeds the preset range, the switching mechanism 300 can also switch from the first state to the second state to enable the wearable device to better collect the sound emitted by the wearer.

[0042] In some optional embodiments, the wearable device further includes a controller. The controller is connected to the sound-generating device 400, the sound pickup device 100, and the switching mechanism 300, so that the controller can control the sound-generating device 400 to achieve an operating state, such as controlling the sound-generating device 400 to produce sound. Furthermore, the controller can also be used to process the audio signal collected by the sound pickup device 100, such as by enhancing the audio signal collected by the sound pickup device 100. Of course, the controller can also be used to control the state of the switching mechanism 300, such as controlling the switching mechanism 300 to switch between a first state and a second state, or controlling the switching mechanism 300 to maintain the first state or the second state.

[0043] In some optional embodiments, if the target object within the preset range is not the person with whom the user is conversing, the user can adjust the state of the switching mechanism 300 through intervention control to adjust the sound pickup direction of the wearable device to meet the user's needs. Specifically, there are many ways to intervene, such as shouting, touch control, or manual adjustment. Therefore, this embodiment does not limit the method of user intervention to control the state of the switching mechanism 300.

[0044] In other optional embodiments, a controller in the wearable device can control the switching mechanism 300 to switch between a first state and a second state. For example, if the wearable device detects a target object within a preset range, the controller controls the switching mechanism 300 to remain in the second state for a longer period of time to better capture audio in a second direction. Furthermore, the controller in the wearable device compensates the audio signal collected by the sound pickup device 100 based on the time gap between the switching mechanism 300 in the first and second states, thereby achieving directional sound pickup by the wearable device and enhancing the presentation of the audio signal. It should be noted that the time gap in the first state of the switching mechanism 300 refers to the duration that the switching mechanism 300 remains in the first state during a switching cycle between the first and second states. Specifically, the duration that the wearable device captures audio through the first sound pickup channel 230 during a switching cycle between the first and second states. The time gap in the first state of the switching mechanism 300 refers to the duration that the switching mechanism 300 remains in the second state during a switching cycle between the first and second states. That is, the duration of time that the wearable device collects audio through the second sound pickup channel 240 during the switching period when the switching mechanism 300 switches between the first state and the second state.

[0045] Reference Figure 1 In some optional embodiments, the sound range cavity 250 includes a normal sound range sub-cavity 251 and an ultrasonic sound range sub-cavity 252. The sound wave resonant frequency of the normal sound range sub-cavity 251 is a first frequency. The sound wave resonant frequency of the ultrasonic sound range sub-cavity 252 is a second frequency. The first frequency is less than the second frequency. The ultrasonic sound range sub-cavity 252 is connected to the normal sound range sub-cavity 251 and the ultrasonic sound outlet 260. The sound-generating device 400 is disposed in the normal sound range sub-cavity 251, and the sound-generating device 400 emits audible sound waves and ultrasonic sound waves.

[0046] In the above embodiment, the sound wave resonant frequency of the normal sound range sub-cavity 251 is lower than the sound wave resonant frequency of the ultrasonic sound range sub-cavity 252, so that the normal sound range sub-cavity 251 and the ultrasonic sound range sub-cavity 252 can split the sound waves generated by the sound-generating device 400. For example, sound waves with a frequency within the resonant frequency range of the normal sound range sub-cavity 251 are resonantly amplified by the normal sound range sub-cavity 251 and then enter the human ear for the user to hear.

[0047] The ultrasonic waves emitted by the sound-generating device 400 through the normal-range sub-cavity 251 are significantly weakened because they cannot resonate and enhance within the normal-range sub-cavity 251. The ultrasonic waves emitted by the sound-generating device 400 are resonated and enhanced within the ultrasonic-range sub-cavity 252, thereby allowing the ultrasonic waves emitted by the sound-generating device 400 to be emitted in a directionally directed manner from the ultrasonic sound-generating opening 260.

[0048] In addition, the sound wave energy whose frequency is within the range of the resonance frequency of the normal sound range sub-cavity 251 can also be offset at the connection point between the normal sound range sub-cavity 251 and the ultrasonic sound range sub-cavity 252, which is beneficial to prevent the leakage of sound waves whose frequency is within the range of the resonance frequency of the normal sound range sub-cavity 251.

[0049] In an optional embodiment, the sound wave resonance frequency of the normal sound range sub-cavity 251 ranges from 20 Hz to 10,000 Hz; and the sound wave resonance frequency of the ultrasonic sound range sub-cavity 252 is greater than 10,000 Hz.

[0050] In some optional embodiments, the wearable device of the present invention is a head-mounted device. Specifically, the wearable device of the present invention can be headphones, hearing aids, smart glasses, medical equipment, etc.

[0051] In an optional embodiment, the wearable device is an earphone. The wearable device also includes an in-ear structure 500. When worn, the in-ear structure 500 is positioned in the user's ear. The in-ear structure 500 is disposed on the wearable body 200 and communicates with the normal sound range subcavity 251, so that sound waves with frequencies within the resonant frequency range of the normal sound range subcavity 251 pass through the normal sound range subcavity 251 and enter the in-ear structure 500 for the user to hear.

[0052] As an optional embodiment, when the in-ear structure 500 is worn, the first sound pickup port 210 faces the user's vocalization site. For example, the user's vocalization site may be the user's vocal cords and / or mouth. The second sound pickup port 220 faces forward. For example, the forward direction of the user may be the direction of the user's face.

[0053] In some optional embodiments, the wearable device is worn on the ear of a person during use. Furthermore, when the wearable device is worn on the ear, the first sound pickup port 210 faces the mouth to collect the sound emitted by the wearer through the first sound pickup port 210. The second sound pickup port 220 faces the front of the wearer to collect the audio signal in front of the wearer through the second sound pickup port 220. Exemplarily, the angle between the first direction and the second direction is 15° to 90°, so that when the user wears the device, they only need to point the first sound pickup port 210 towards the mouth to achieve the second sound pickup port 220 facing the front of the wearer.

[0054] As an exemplary embodiment, when the wearer is talking to someone, it is easier to talk to the designated person and the wearer will automatically turn towards the designated person, thereby making the second sound pickup port 220 face the designated person. To this end, the state of the switching mechanism 300 can be switched to the first state so that the wearable device can collect audio in front of the wearer through the second sound pickup channel 240 and the second sound pickup port 220, thereby enhancing the presentation of the designated person's voice.

[0055] As another exemplary embodiment, when the wearable device is required to pick up the sound emitted by the user, the state of the switching mechanism 300 can be switched to the second state, so that the wearable device can collect the audio emitted by the wearer through the first sound pickup channel 230 and the first sound pickup port 210, thereby enhancing the presentation of the sound emitted by the wearer. There are many scenarios in which a wearable device is required to pick up the sound emitted by the user, such as remote calls, audio recording, voice input, etc. For this reason, this embodiment does not limit the specific scenarios in which the wearable device picks up the sound emitted by the user.

[0056] Based on the wearable device described in the present invention, the present invention also provides a directional sound pickup method. The directional sound pickup method can be applied to the wearable device described in the present invention. Specifically, the directional sound pickup method includes:

[0057] Step 101, determining whether there is a target object within a preset range of the direction of the second sound pickup port;

[0058] Step 103: When there is a target object within a preset range of the direction of the second sound pickup port, adjust the state of the switching mechanism so that the wearable device picks up sound through the second sound pickup port.

[0059] For example, a sensor can be used to detect whether there is an object within a preset range in the direction of the second sound pickup port. The specific sensor can be an infrared detector, a camera, an ultrasonic detector, etc. Therefore, this embodiment does not limit the specific method for detecting whether there is an object within the preset range in the direction of the second sound pickup port.

[0060] In some optional embodiments, the wearable device can pick up sound through the second sound pickup port by switching the switching mechanism to a first state, that is, the switching mechanism blocks the first sound pickup channel, and the second sound pickup channel connects the sound pickup device and the second sound pickup port, so that audio in the second direction can enter from the second sound pickup port and reach the sound pickup device along the second sound pickup channel.

[0061] In another optional embodiment, the wearable device can pick up sound through the second sound pickup port by controlling the switching mechanism to intermittently switch to the first state. For example, the switching mechanism can be controlled to switch between the first state and the second state so that audio in the second direction can enter through the second sound pickup port and reach the sound pickup device along the second sound pickup channel when the switching mechanism is in the first state. Furthermore, to avoid stuttering in the picked up audio, the picked up audio signal can be further processed by the controller according to the switching frequency of the switching mechanism between the first state and the second state to obtain continuous audio.

[0062] In some optional embodiments, before determining in step 101 whether there is a target object within a preset range of the direction in which the second sound pickup port is facing, the directional sound pickup method further includes:

[0063] Step 105: Control the switching mechanism to switch between the first state and the second state according to the preset value of the first sound pickup time slot and the preset value of the second sound pickup time slot. The first sound pickup time slot is the length of time the switching mechanism stays in the first state each time, and the second sound pickup time slot is the length of time the switching mechanism stays in the second state each time.

[0064] In some optional embodiments, the wearable device also includes a sound-emitting device 400, the wearable body 200 has a sound range cavity 250 and an ultrasonic sound port 260, the sound-emitting device 400 is arranged in the sound range cavity 250, the ultrasonic sound port 260 is connected to the sound range cavity 250, and the direction of the ultrasonic sound port 260 is the same as the direction of the second sound pickup port 220.

[0065] In the above embodiment, the sound pickup device 100 and the second sound pickup port 220 can also be used to detect whether there is a target within a preset range in the direction of the second sound pickup port. Specifically, the ultrasonic wave emitted by the sound-generating device 400 propagates in the direction of the ultrasonic sound-generating port 260. If the ultrasonic wave encounters an obstacle, it will be reflected by the obstacle. The reflected ultrasonic wave can enter the second sound pickup channel 240 through the second sound pickup port 220 and reach the sound pickup device 100 along the second sound pickup channel 240.

[0066] For example, the preset value of the first sound pickup time slot may be the time required for the sound pickup device 100 to receive the reflected ultrasonic wave in the process of determining whether there is a target object within a preset range of the direction of the second sound pickup port through ultrasonic detection.

[0067] Specifically, the preset value of the first sound pickup time slot and the preset value of the second sound pickup time slot can be set as needed. Therefore, the embodiment of the present application does not limit the preset value of the first sound pickup time slot and the preset value of the second sound pickup time slot.

[0068] In an optional usage scenario, if the user only needs to pick up the sound of the object through the wearable device, the first sound pickup time slot can be adjusted to zero. Specifically, the controller can control the switching mechanism to switch to the first state. If the user only needs to pick up the sound emitted by the wearer through the wearable device, the second sound pickup time slot can be adjusted to zero. Specifically, the controller can control the switching mechanism to switch to the second state.

[0069] In some optional embodiments, step 103, when there is a target object within a preset range of the direction of the second sound pickup port, controlling the state of the switching mechanism so that the wearable device picks up sound through the second sound pickup port includes:

[0070] Step 1031: Control the switching mechanism to increase the duration that the switching mechanism stays in the second state each time.

[0071] In this embodiment, by extending the time period that the switching mechanism stays in the second state each time, the second sound pickup time slot corresponding to the switching structure is increased, thereby facilitating the pickup of audio in the second direction through the second sound pickup port and the second sound pickup channel.

[0072] Optionally, increasing the duration that the switching mechanism remains in the second state each time may be achieved by increasing the size of the second sound pickup time slot while keeping the size of the first sound pickup time slot unchanged. Alternatively, the switching mechanism may be achieved by reducing the first sound pickup time slot and increasing the second sound pickup time slot while keeping the switching period between the first and second states unchanged, thereby allowing the wearable device to capture more audio in the second direction.

[0073] In some optional embodiments, if the user determines that an object within the preset range of the direction of the second sound pickup port is not the object that the user desires to pick up sound, the user can intervene to control the state of the switching mechanism so that the sound pickup direction of the wearable device meets the user's requirements. Specifically, there are many ways to intervene in the control, such as shouting, touch control, or manual adjustment. Therefore, this embodiment does not limit the method by which the user intervenes in controlling the state of the switching mechanism 300.

[0074] For example, when the user determines that there is a target object within the preset range of the direction of the second sound pickup port that is not the object the user needs to pick up sound, the user can use the intervention control method to enable the switching mechanism in the wearable device to switch between the first state and the second state based on the preset value of the first sound pickup time slot and the preset value of the second sound pickup time slot.

[0075] Specifically, when a user needs to listen to the sound in front of them, they can issue a command to pick up the sound in front of them by touching, pressing, and / or shouting into the microphone. Upon receiving the command to adjust the sound pickup direction, the wearable device determines the size of the first sound pickup time slot and the second sound pickup time slot according to the command, so that the controller can control the switching mechanism to switch between the first state and the second state according to the size of the first sound pickup time slot and the second sound pickup time slot.

[0076] In some optional embodiments, step 101, determining whether there is a target object within a preset range of the direction of the second sound pickup port, includes:

[0077] Step 1011, emitting ultrasonic waves in the direction of the second sound pickup port;

[0078] Step 1012, receiving ultrasonic waves reflected in the direction of the second sound pickup port;

[0079] Step 1013: If the time between the time of emitting the ultrasonic wave in the direction of the second sound pickup port and the time of receiving the ultrasonic wave reflected back in the direction of the second sound pickup port is less than the preset time, there is a target object within the preset range in the direction of the second sound pickup port.

[0080] For example, the maximum distance at which the wearable device can pick up sound is the first sound pickup distance. That is, the maximum distance between the target object and the wearable device at which the wearable device can normally pick up sound emitted by the target object is the first distance. The preset duration can be the time required for ultrasonic waves to transmit over a second distance, which is twice the first distance.

[0081] The longer the time between the time when the ultrasonic wave is emitted in the direction of the second sound pickup port and the time when the ultrasonic wave reflected back in the direction of the second sound pickup port is received, the greater the distance between the target object and the wearable device.

[0082] When the duration between the time point of emitting an ultrasonic wave in the direction of the second sound pickup port and the time point of receiving the ultrasonic wave reflected back in the direction of the second sound pickup port is less than the preset duration, the distance between the target object and the wearable device is less than the first distance, that is, there is a target object within the preset range in the direction of the second sound pickup port.

[0083] When the time length between the time point of emitting an ultrasonic wave in the direction of the second sound pickup port and the time point of receiving the ultrasonic wave reflected back in the direction of the second sound pickup port is greater than the preset time length, the distance between the target object and the wearable device is greater than the first distance, that is, there is no target object within the preset range in the direction of the second sound pickup port.

[0084] For example, if the target object is within the wearable device's pickup range in the second direction, the wearable device extends the second pickup time slot to pick up audio in the second direction. If the target object is not outside the wearable device's pickup range in the second direction, the wearable device allocates pickup time slots in the second direction to ensure that only reflected ultrasonic waves are picked up.

[0085] In other optional embodiments, the wearable device may emit ultrasonic waves in the second direction according to a preset frequency, so that the wearable device can promptly detect whether there is a target object within the sound pickup range in the second direction.

[0086] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0087] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A wearable device, characterized in that: include: Pickup device, A wearable body having a first sound pickup port, a second sound pickup port, a first sound pickup channel, a second sound pickup channel, a sound range cavity, and an ultrasonic sound producing port; the sound pickup device is disposed on the wearable body; a first end of the first sound pickup channel is in communication with the sound pickup device; a second end of the first sound pickup channel is in communication with the first sound pickup port; a first end of the second sound pickup channel is in communication with the first sound pickup channel; and a second end of the second sound pickup channel is in communication with the second sound pickup port; the first sound pickup port and the second sound pickup port have different orientations; a switching mechanism, the switching mechanism being provided on the wearable body and being switchable between a first state and a second state. When the switching mechanism is in the first state, the switching mechanism blocks the first sound pickup channel, and the second sound pickup channel connects the sound pickup device and the second sound pickup port; when the switching mechanism is in the second state, the switching mechanism blocks the second sound pickup channel, and the first sound pickup channel connects the sound pickup device and the first sound pickup port; a sound-generating device, the sound-generating device being disposed in the sound range cavity, the ultrasonic sound-generating port being in communication with the sound range cavity, and the direction of the ultrasonic sound-generating port being the same as the direction of the second sound pickup port; When the sound-generating device emits ultrasonic waves propagating in the direction of the ultrasonic sound-generating port, the switching mechanism switches to the first state so that the reflected ultrasonic waves pass through the second sound pickup port and the second sound pickup channel to reach the sound pickup device.

2. The wearable device according to claim 1, wherein: The switching mechanism includes a rotating paddle, which is rotatably arranged at the connection point between the first sound pickup channel and the second sound pickup channel, and the rotating paddle can be switched between a first angle and a second angle relative to the wearable body. When the rotating paddle is rotated to the first angle relative to the wearable body, the switching mechanism is in the first state; When the rotating paddle is rotated to the second angle relative to the wearing body, the switching mechanism is in the second state.

3. The wearable device according to claim 2, wherein: The switching mechanism further includes a flexible head, which is mounted on the rotating paddle. When the rotating paddle is rotated to the first angle relative to the wearable body, at least a portion of the flexible head protrudes toward the first sound pickup channel, and the flexible head is sealed against the inner sidewall of the first sound pickup channel; When the rotating paddle is rotated to the second angle relative to the wearing body, at least a portion of the flexible head protrudes toward the second sound pickup channel, and the flexible head is sealed and matched with the inner side wall of the second sound pickup channel.

4. The wearable device according to claim 2, wherein: The switching mechanism further includes a driving member connected to the rotating paddle, and the driving member can drive the rotating paddle to switch between the first angle and the second angle relative to the wearing body.

5. The wearable device according to claim 1, wherein: The vocal range cavity includes a normal vocal range sub-cavity and an ultrasonic vocal range sub-cavity, wherein the sound wave vibration harmonic frequency of the normal vocal range sub-cavity is a first frequency; the sound wave vibration harmonic frequency of the ultrasonic vocal range sub-cavity is a second frequency, the first frequency is less than the second frequency, and the ultrasonic vocal range sub-cavity is connected to the normal vocal range sub-cavity and the ultrasonic pronunciation port respectively; The sound-generating device is arranged in the normal sound range sub-cavity, and the sound-generating device emits audible sound waves and ultrasonic sound waves.

6. The wearable device according to claim 5, wherein: The wearable device is an earphone, and the wearable device further includes an in-ear structure, which is located on the user's ear when worn; the in-ear structure is arranged on the wearable body, and the in-ear structure is connected to the normal sound range sub-cavity.

7. The wearable device according to claim 6, wherein: When the in-ear structure is in a wearing state, the first sound pickup port faces the sound-producing part of the user; and the second sound pickup port faces the front of the user.

8. A directional sound pickup method, applied to the wearable device according to any one of claims 1 to 7, characterized in that: The directional sound pickup method includes: Determining whether there is a target object within a preset range of the direction of the second sound pickup port; When there is a target object within a preset range of the direction of the second sound pickup port, the state of the switching mechanism is adjusted so that the wearable device picks up sound through the second sound pickup port.

9. The directional sound pickup method according to claim 8, characterized in that: Before determining whether there is a target object within a preset range of the direction of the second sound pickup port, the directional sound pickup method further includes: The switching mechanism is controlled to switch between a first state and a second state according to a preset value of a first sound pickup time slot and a preset value of a second sound pickup time slot, wherein the first sound pickup time slot is the duration for which the switching mechanism stays in the first state each time, and the second sound pickup time slot is the duration for which the switching mechanism stays in the second state each time.

10. The directional sound pickup method according to claim 9, characterized in that: When there is a target object within a preset range of the direction of the second sound pickup port, switching the state of the switching mechanism so that the wearable device picks up sound through the second sound pickup port includes: The switching mechanism is controlled to increase the duration that the switching mechanism stays in the second state each time.

11. The directional sound pickup method according to claim 8, characterized in that: The determining whether there is a target object within a preset range of the direction of the second sound pickup port includes: emitting ultrasonic waves in the direction of the second sound pickup port; receiving ultrasonic waves reflected in the direction of the second sound pickup port; When the time between the time when the ultrasonic wave is emitted in the direction of the second sound pickup port and the time when the ultrasonic wave reflected back in the direction of the second sound pickup port is received is less than the preset time, there is a target object within the preset range in the direction of the second sound pickup port.

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