Electronic device

Abstract

The utility model relates to the technical field of electro-acoustic conversion, in particular to electronic equipment, which comprises a foldable shell, a microphone, a sound production assembly and a processing unit, and is characterized in that the foldable shell can be switched between folding and unfolding through rotation; the foldable shell is provided with an installation cavity, a pickup hole and a first sound outlet hole, wherein the pickup hole and the first sound outlet hole are communicated with the installation cavity. The microphone is arranged in the mounting cavity and is arranged corresponding to the pickup hole; the sound production assembly is arranged in the mounting cavity and comprises a first sound production unit corresponding to the first sound outlet hole; and the processing unit is arranged in the mounting cavity and electrically connected with the microphone and the sound production unit, and the processing unit is used for receiving an audio signal of the microphone and converting the audio signal into an anti-phase audio signal. By means of the structure, the privacy safety of a user is protected, and meanwhile attention or rest of other people is prevented from being affected when the user uses the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to electroacoustic conversion technical field and concretely relates to an electronic device. BACKGROUND

[0002] Electronic device has become the important communication tool of mutual contact of people in modern society, is the indispensable equipment when people acquire information in various life scenes. But when using electronic device to carry out voice call in closed and relatively dense place such as office, cinema, subway, bus, elevator car, user will face the privacy security problem of speech content leakage, and there is the problem of speech sound affecting the attention or rest of others.

[0003] Therefore, the utility model is provided. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing an electronic device, which aims to protect the privacy security of users and avoid affecting the attention or rest of others when users use it.

[0005] The utility model provides an electronic device, which comprises:

[0006] A foldable shell, which can be switched between folding and unfolding by rotating, is provided with a mounting cavity, a sound pickup hole and a first sound outlet hole communicating with the mounting cavity, the sound pickup hole and the first sound outlet hole are arranged on the bottom of the foldable shell, and the top of the foldable shell is further provided with a second sound outlet hole;

[0007] A microphone, which is arranged in the mounting cavity and is arranged corresponding to the sound pickup hole to receive the sound of a user and convert it into an audio signal;

[0008] A sound generating assembly, which is arranged in the mounting cavity and comprises a first sound generating unit arranged corresponding to the first sound outlet hole and a second sound generating unit arranged corresponding to the second sound outlet hole, in a non-hands-free call mode, one end of the foldable shell where the second sound outlet hole is located is close to the ear of the user;

[0009] A processing unit, which is arranged in the mounting cavity and is electrically connected with the microphone and the sound generating assembly, is used to receive the audio signal output by the microphone, convert it into an anti-phase audio signal and send it to the first sound generating unit to output an anti-phase sound.

[0010] The electronic device provided by the utility model can further have the following additional technical features:

[0011] In one embodiment, the foldable housing comprises a first housing and a second housing rotatably connected to switch the foldable housing between folding and unfolding, and the sound pickup hole is arranged on the first housing or the second housing, wherein,

[0012] The first housing or the second housing is provided with one first sound outlet hole corresponding to one first sound unit, and the one first sound unit outputs anti-phase sound.

[0013] Alternatively, the first housing or the second housing is provided with one first sound outlet hole corresponding to at least two first sound units, and the at least two first sound units collectively output anti-phase sound.

[0014] Alternatively, the first housing or the second housing is provided with two first sound outlet holes, each corresponding to one first sound unit, and the two first sound units collectively output anti-phase sound.

[0015] Alternatively, the first housing and the second housing are each provided with at least one first sound outlet hole, each corresponding to at least one first sound unit, and one or at least two of all first sound units are used to output anti-phase sound.

[0016] In one embodiment, the foldable housing comprises a first housing, a second housing and a third housing rotatably connected to switch the foldable housing between folding and unfolding, and the sound pickup hole is arranged on the first housing, wherein,

[0017] The first housing, the second housing or the third housing is provided with at least one first sound outlet hole.

[0018] Or at least two of the first housing, the second housing and the third housing are each provided with at least one first sound outlet hole.

[0019] In one embodiment, the first housing or the second housing is provided with two first sound units integrated into an integral structure.

[0020] In one embodiment, the sound generating assembly comprises at least two second sound units, and the at least two second sound units form a sound dipole in a non-hands-free call mode in the folded state.

[0021] Alternatively, the sound generating assembly comprises two second sound units, and the two second sound units are arranged on the first housing or the second housing simultaneously, and the two second sound units are designed as an integral or a split.

[0022] Alternatively, the sound production assembly includes two second sound production units, and the two second sound production units are arranged on the first shell and the second shell, respectively.

[0023] In one embodiment, the foldable shell includes a first surface, a second surface arranged opposite to the first surface, and a side surface connected between the first surface and the second surface, the first sound outlet is arranged on the side surface, and the second sound outlet is arranged on the side surface or at a connection position between the side surface and the first surface.

[0024] In one embodiment, the processing unit includes:

[0025] An audio processing unit, which is electrically connected with the microphone and the sound production assembly, is configured to receive the audio signal output by the microphone, perform noise reduction processing, and convert the audio signal into an anti-phase audio signal.

[0026] A central processing unit, which is electrically connected with the audio processing unit, is configured to receive the audio signal processed by the audio processing unit.

[0027] A transmitting unit, which is electrically connected with the central processing unit, is configured to transmit the audio signal output by the microphone.

[0028] In one embodiment, the transmitting unit includes a radio frequency processing unit and an antenna, the radio frequency processing unit is electrically connected with the central processing unit and the antenna, the radio frequency processing unit is configured to receive the signal from the central processing unit, and the antenna is configured to transmit the audio signal.

[0029] In one embodiment, the processing unit further includes a natural language processing unit, which is electrically connected with the audio processing unit and the central processing unit, is configured to analyze the private information in the audio signal processed by the audio processing unit and feed back to the audio processing unit, and is configured to predict the intention of a caller based on the audio signal processed by the audio processing unit to prepare the anti-phase audio signal in advance.

[0030] In one embodiment, the electronic device is a mobile phone, a smart wearable device, a voice recorder, or a computer.

[0031] The electronic equipment sets up the installation cavity in the foldable shell, and installs, fixes and protects the microphone, the sound production assembly and the processing unit and other components by the installation cavity, sets up the sound pickup hole and the first sound outlet hole which are communicated with the installation cavity on the foldable shell, so that the microphone is arranged corresponding to the sound pickup hole, the sound pickup hole is used to pick up the voice information output by the user, and the first sound production unit is arranged corresponding to the first sound outlet hole, so that the sound output by the sound production assembly can smoothly pass through the first sound outlet hole and be transmitted to the outside; the processing unit is arranged, the processing unit is electrically connected with the microphone and the sound production assembly, so that the processing unit receives the audio signal of the microphone, and converts the audio signal into the anti-phase audio signal, the anti-phase audio signal is transmitted to the first sound production unit, the anti-phase audio signal output by the first sound production unit is opposite to the audio signal output by the microphone, that is, the anti-phase audio signal emitted by the first sound production unit and the sound of the user form a sound dipole effect, so as to mutually offset each other, so that the sound of the user's peripheral people's ear holes can mutually offset each other when the user outputs the voice, the purpose of avoiding the user's voice information leakage is achieved, and the user's privacy protection safety effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0033] Figure 1 It is a structural schematic diagram of the electronic equipment in the embodiment of the present application.

[0034] Figure 2 It is a working schematic diagram of the electronic equipment in the embodiment of the present application.

[0035] Figure 3 It is an unfolding schematic diagram of the electronic equipment in the embodiment of the present application.

[0036] Figure 4 It is a sectional view of part of the structure of the electronic equipment in the embodiment of the present application.

[0037] Figure 5 It is an application scene schematic diagram of the electronic equipment in the embodiment of the present application.

[0038] Figure 6 It is a structural schematic diagram of the electronic equipment in another embodiment of the present application.

[0039] Explanation of reference signs:

[0040] 100-electronic equipment;

[0041] 1 - foldable housing, 11 - mounting cavity, 12 - first housing, 13 - second housing, 14 - third housing, 15 - sound pickup hole, 16 - first sound outlet hole, 17 - second sound outlet hole;

[0042] 2 - microphone, 3 - sound production assembly, 31 - first sound production unit, 32 - second sound production unit;

[0043] 4 - processing unit, 41 - audio processing unit, 42 - central processing unit, 43 - transmitting unit, 431 - radio frequency processing unit, 432 - antenna, 44 - natural language processing unit. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0045] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0046] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and the like are used herein to describe a variety of elements, components, regions, layers and / or sections, and do not imply an order or sequence unless the context clearly indicates otherwise. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0047] For ease of description, spatial relative terms can be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inside", "outside", "lower", "below", "upper", "above", and the like. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0048] The electronic device 100 can be a smart terminal, which can be a mobile phone, a head-mounted device (such as AR / VR), smart glasses, a voice recorder, a notebook computer, or the like, and has a call and external audio function, which is not limited herein.

[0049] Please refer to Figures 1-6 In the embodiment of the utility model, the electronic device 100 includes a foldable housing 1, a microphone 2, a sound emitting assembly 3, and a processing unit 4. The foldable housing 1 can be switched between folding and unfolding by rotating. The foldable housing 1 is provided with a mounting cavity 11, a sound pickup hole 15, and a first sound outlet hole 16, the sound pickup hole 25 and the first sound outlet hole 16 are both arranged at the bottom of the foldable housing 1, close to the user's mouth, and the top of the foldable housing 1 is further provided with a second sound outlet hole 17. The microphone 2 is arranged in the mounting cavity 11 and is arranged corresponding to the sound pickup hole 15 to receive the user's voice and convert it into an audio signal. The sound emitting assembly 3 is arranged in the mounting cavity 11 and includes a first sound emitting unit 31 arranged corresponding to the first sound outlet hole 16 and a second sound emitting unit 32 arranged corresponding to the second sound outlet hole 17. In the non-hands-free call mode, one end of the foldable housing 1 where the second sound outlet hole 17 is located is close to the user's ear, and at this time, the sound emitted by the second sound emitting unit 32 is transmitted to the user's ear. The processing unit 4 is arranged in the mounting cavity 11 and is electrically connected with the microphone 2 and the sound emitting assembly. The processing unit 4 is used to receive the audio signal output by the microphone 2, convert it into an anti-phase audio signal, and send it to the first sound emitting unit 31 to output the anti-phase sound.

[0050] In the embodiment, the foldable shell 1 is the outer shell of the electronic device 100. On the one hand, the foldable shell can be folded or unfolded by rotating, and the electronic device 100 is formed into a foldable device, that is, the electronic device 100 can be switched between folding and unfolding. On the other hand, the foldable shell 1 also installs and protects the microphone 2, the sound emitting component 3, the processing unit 4 and other components. It can be understood that the foldable shell 1 can be an outer shell, a cover, a box or other structures with an installation cavity 11, which is not limited here. In order to achieve the sealing and waterproof effect, the foldable shell 1 can be an integral structure. Of course, in order to facilitate the installation of the microphone 2, the sound emitting component 3 and the processing unit 4 and other components, the foldable shell 1 can also be provided in a split manner, so as to improve the disassembly convenience of the microphone 2, the sound emitting component 3 and the processing unit 4 and other components.

[0051] In the embodiment, the microphone 2 can be a MIC or a micro-MIC structure, which is used to pick up the sound information output by the user and convert the sound information into an electrical signal. The sound emitting component 3 can be a loudspeaker module or a sound emitting device module.

[0052] It can be understood that by providing the sound pickup hole 15, the first sound outlet hole 16 and the second sound outlet hole 17 on the device shell, and making the first sound emitting unit 31 and the second sound emitting unit 32 of the sound emitting component 3 correspond to the first sound outlet hole 16 and the second sound outlet hole 17 respectively, the microphone 2 can conveniently pick up the sound information output by the user through the sound pickup hole 15. At the same time, the sound emitting effect of the electronic device 100 can be improved by using the first sound outlet hole 16 and the first sound emitting unit 31 of the sound emitting component 3. The sound emitted by the first sound outlet hole 16 and the first sound emitting unit 31 can form a sound dipole effect together with the sound emitted by the user's mouth, thereby reducing the leakage of the sound information output by the user when using the electronic device 100, effectively avoiding the content of the sound information emitted by the user's mouth from being heard by the surrounding people, thereby improving the privacy protection effect and protecting the privacy and safety of the user.

[0053] It can be understood that the so-called acoustic dipole refers to two sound sources which are very close, the vibration amplitudes of which are the same but the phases are opposite, and the combined sound source formed by the two point sound sources is called acoustic dipole, and the electronic device 100 of the utility model utilizes the opposite phase leakage reduction principle of acoustic dipole, so that the sound emitted by the sound source of the first sound hole 16 and the sound information output by the user are mutually cancelled in a far place, and the purpose of reducing leakage is achieved. That is to say, the condition for the first sound hole 16 and the user's mouth to form acoustic dipole effect is that the distance between the first sound hole 16 and the user's mouth is much smaller than the distance from the above two to the ear hole of the user's surrounding person, so that for the ear hole of the user's surrounding person, the distance between the first sound hole 16 and the user's mouth can be ignored, that is to say, the distance from the two sound sources of the first sound hole 16 and the user's mouth to the ear hole of the user's surrounding person is approximately equal, therefore, the two sound sources with opposite phases are mutually cancelled when reaching the ear hole of the user's surrounding person, and the purpose of reducing leakage is achieved.

[0054] In the embodiment, by setting the positions of the first sound hole 16 and the sound pickup hole 15, the distance between the first sound hole 16 and the sound pickup hole 15 and the user's mouth is close enough, and at the same time, the sound emitting surface of the first sound emitting unit 31 of the sound emitting assembly 3 can be controlled to realize the dipole effect, thereby reducing the leakage of the sound information output by the user and realizing privacy protection.

[0055] In the embodiment, the second sound emitting unit 32 corresponding to the second sound hole 17 can be formed into a receiver, thereby being used for voice communication of the user. In other use scenarios, the second sound emitting unit 32 can also be formed into a loudspeaker or a sound emitting device, thereby effectively improving the sound emitting effect of the sound emitting assembly 3.

[0056] The electronic equipment 100 is provided with the installation cavity 11 in the foldable shell 1, so that the installation cavity 11 is used for installing, fixing and protecting the microphone 2, the sound generating assembly 3 and the processing unit 4 and the like, the sound pickup hole 15, the first sound outlet hole 16 and the second sound outlet hole 17 which are communicated with the installation cavity 11 are arranged on the foldable shell 1, the sound pickup hole 15 and the first sound outlet hole 16 are arranged on the bottom of the foldable shell 1, the second sound outlet hole 17 is arranged on the top of the foldable shell 1, so that the microphone 2 is arranged corresponding to the sound pickup hole 15, the sound pickup hole 15 is used for picking up the sound output by the user and converting the sound into an audio signal, the first sound generating unit 31 is arranged corresponding to the first sound outlet hole 16, and the second sound generating unit 32 is arranged corresponding to the second sound outlet hole 17, so that the sound output by the first sound generating unit 31 is smoothly transmitted to the outside through the first sound outlet hole 16, and the sound output by the second sound generating unit 32 is smoothly transmitted to the outside through the second sound outlet hole 17, the processing unit 4 is arranged, the processing unit 4 is electrically connected with the microphone 2 and the sound generating assembly 3, so that the processing unit 4 receives the audio signal output by the microphone 2, converts the audio signal into an anti-phase audio signal and sends the anti-phase audio signal to the first sound generating unit 31 to output an anti-phase sound, the anti-phase sound output by the first sound generating unit 31 is opposite to the phase of the voice information output by the user, so that the two can form a sound dipole effect, so that the anti-phase audio signal and the voice information output by the user can be mutually cancelled in a far field, that is, the voice information output by the user can be mutually cancelled when reaching the ear holes of people around the user when the user is speaking, the purpose of avoiding the leakage of the voice information of the user is achieved, and the effect of protecting the privacy of the user is achieved.

[0057] In an embodiment, the foldable housing 1 comprises a first housing 12 and a second housing 13 rotatably connected to switch the foldable housing 1 between folding and unfolding, and the sound pickup hole 15 is arranged on the first housing 12 or the second housing 13, wherein the first housing 12 or the second housing 13 is provided with a first sound outlet hole 16 corresponding to a first sound emitting unit 31, and the first sound emitting unit 31 outputs anti-phase sound, so that only one first sound emitting unit 31 is needed to achieve privacy protection; alternatively, the first housing 12 or the second housing 13 is provided with a first sound outlet hole 16, and each first sound outlet hole 16 corresponds to at least two first sound emitting units 31, and the at least two first sound emitting units 31 collectively output anti-phase sound, and compared with one first sound emitting unit 31, the anti-phase sound has greater loudness and forms a dipole effect with human voice; alternatively, the first housing 12 or the second housing 13 is provided with two first sound outlet holes 16, and each first sound outlet hole 16 corresponds to one first sound emitting unit 31, and the two first sound emitting units 31 collectively output anti-phase sound, which facilitates terminal structure design while ensuring the loudness of the anti-phase sound; further, the first housing 12 and the second housing 13 are each provided with at least one first sound outlet hole 16, and each first sound outlet hole 16 corresponds to at least one first sound emitting unit 31, and one or two of all the first sound emitting units 31 are used to output anti-phase sound, and when the first housing 12 and the second housing 13 are each provided with a first sound outlet hole 16 and a first sound emitting unit 31, not only can high-loudness anti-phase sound be achieved, but also a stereo sound output effect can be achieved when the housing 1 is unfolded.

[0058] Alternatively, the foldable housing 1 can be vertically folded, and at this time, the sound pickup hole 15 can be arranged on the first housing 12 or the second housing 13, the first sound outlet hole 16 is arranged on the first housing 12 or the second housing 13, the first sound outlet hole 16 corresponds to at least one first sound emitting unit 31, or the first housing 12 and the second housing 13 are each provided with at least one first sound outlet hole 16, and each first sound outlet hole 16 corresponds to at least one first sound emitting unit 31.

[0059] When the first sound outlet hole 16 is multiple, the multiple first sound outlet holes 16 are arranged in proximity, so as to not only realize multi-functional application, but also effectively improve the sound production effect of the sound production assembly 3. In an embodiment, the foldable shell 1 comprises a first shell 12, a second shell 13 and a third shell 14 rotatably connected to switch the foldable shell 1 between folding and unfolding, and the sound pickup hole 15 is arranged on the first shell 12, wherein at least one first sound outlet hole 16 is arranged on the first shell 12, the second shell 13 or the third shell 14, or at least one first sound outlet hole 16 is arranged on at least two of the first shell 12, the second shell 13 and the third shell 14.

[0060] In the embodiment, the folding direction of the foldable shell 1 is vertical folding. Through the above arrangement, the structural form of the electronic device 100 can be enriched, and the number of the first sound outlet holes 16 can be increased, so as to increase the number of the first sound production units 31. When multiple first sound production units 31 radiate sound at the same time, the sound pressure level is increased by 6dB compared with a single first sound production unit 31, and sound with sufficient loudness can be produced, which forms a dipole effect with the human voice.

[0061] In an embodiment, two first sound production units 31 are arranged on the first shell 12 or the second shell 13, and the two first sound production units 31 are integrated into an integrated structure, so as to not only have high integration, but also ensure the loudness of the opposite-phase sound.

[0062] In an embodiment, the sound production assembly comprises at least two second sound production units 32, and the at least two second sound production units 32 form a sound dipole in a non-hands-free call mode in a folded state.

[0063] In an embodiment, the sound production assembly comprises two second sound production units 32, and the two second sound production units 32 are arranged on the first shell 12 or the second shell 13 at the same time, and the two second sound production units 32 are designed as an integrated structure or a split structure.

[0064] In an embodiment, the sound production assembly comprises two second sound production units 32, and the two second sound production units 32 are arranged on the first shell 12 and the second shell 13, respectively.

[0065] In this way, when the user talks, the sound emitted by the sound sources of the two second sound production units 13 cancels each other out at a distance, so as to achieve the purpose of reducing sound leakage.

[0066] In an embodiment, the foldable shell 1 comprises a first surface, a second surface arranged opposite to the first surface, and a side surface connected between the first surface and the second surface, the first sound outlet hole 16 is arranged on the side surface, and the second sound outlet hole 17 is arranged on the side surface or arranged at a connection position between the side surface and the first surface.

[0067] Specifically, to avoid mutual crosstalk, the first sound outlet hole 16 is arranged at a distance from the sound pickup hole 15.

[0068] In an embodiment, the processing unit 4 comprises an audio processing unit 41, a central processing unit 42 and a transmitting unit 43. The audio processing unit 41 is electrically connected with the microphone 2 and the sound emitting assembly, and is configured to receive the audio signal output by the microphone 2, perform noise reduction processing, and convert the audio signal into an anti-phase audio signal. The central processing unit 42 is electrically connected with the audio processing unit 41, and is configured to receive the audio signal processed by the audio processing unit 41. The transmitting unit 43 is electrically connected with the central processing unit 42, and is configured to transmit the audio signal output by the microphone 2.

[0069] In an embodiment, the transmitting unit 43 comprises a radio frequency processing unit 431 and an antenna 432. The radio frequency processing unit 431 is electrically connected with the central processing unit 42 and the antenna 432. The radio frequency processing unit 431 is configured to receive the signal from the central processing unit 42. The antenna 432 is configured to transmit the audio signal output by the microphone 2.

[0070] It can be understood that, when the electronic device 100 is used for voice communication, the sound pickup hole 15 arranged at the bottom of the foldable shell 1 picks up the sound information output by the user, and the microphone 2 processes the sound information into an electrical signal, which is transmitted to the audio processing unit 41. The audio processing unit 41 performs noise reduction processing and extracts a human voice signal, and then generates an anti-phase audio signal according to the extracted human voice signal. Under the cooperative processing of the central processing unit 42 (CPU), on the one hand, the audio processing unit 41 transmits the extracted human voice original audio signal to the radio frequency processing unit 431 of the transmitting unit 43, and transmits the signal to the outside through the antenna 432 built in the electronic device 100, and the signal is transmitted to the communication partner through a communication system. On the other hand, the audio processing unit 41 transmits the generated anti-phase audio signal to the first sound emitting unit 31 arranged at the bottom of the foldable shell 1. The first sound emitting unit 31 converts the audio signal into sound, which is transmitted to the space around the user through the first sound outlet hole 16. At this time, the sound emitted from the user's mouth and the anti-phase sound emitted from the first sound emitting unit 31 of the sound emitting assembly 3 are close in distance and opposite in phase, forming a dipole effect, which cancels each other out at a distance far from the user, so that the sound cannot be heard by others, thereby achieving the function of protecting privacy and safety.

[0071] In an embodiment, the processing unit 4 further comprises a natural language processing unit 44. The natural language processing unit 44 is electrically connected with the audio processing unit 41 and the central processing unit 42. The natural language processing unit 44 is configured to analyze the private information in the audio signal processed by the audio processing unit 41 and feed back to the audio processing unit 41, and is further configured to predict the intention of the user to prepare the anti-phase audio signal in advance.

[0072] The audio processing unit 41 receives the audio signal of the microphone 2 and identifies the audio signal as text, which is sent to the local terminal or the cloud for natural language processing (NLP) for semantic analysis, obtaining the user's intention, determining important private information in the call, such as name, contact information, location, and other content, and then playing the private information in the audio signal fed back to the bottom speaker, achieving more accurate privacy protection effect.

[0073] The audio processing unit 41 can also accurately predict the intention of the caller through semantic analysis, and then prepare the anti-phase audio signal of the call content, so as to achieve the best effect of applying the dipole effect by playing the first sound unit 31 synchronously with the human voice call content due to the time difference caused by the pickup sound and signal processing process.

[0074] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: A foldable housing that can be switched between folding and unfolding by rotating; the foldable housing is provided with a mounting cavity and a sound pickup hole and a first sound outlet hole communicating with the mounting cavity; the sound pickup hole and the first sound outlet hole are both provided at the bottom of the foldable housing, and a second sound outlet hole is further provided at the top of the foldable housing; A microphone is disposed in the mounting cavity and corresponding to the sound pickup hole for receiving the user's voice and converting it into an audio signal; A sound-emitting assembly is disposed in the mounting cavity and includes two first sound-emitting units disposed corresponding to the first sound outlets, and at least two second sound-emitting units disposed corresponding to the second sound outlets. In a non-hands-free call mode, one end of the foldable housing where the second sound outlets are located is close to the user's ear. The two first sound-emitting units are integrated into an integral structure, and the at least two second sound-emitting units are of an integral or split design, and form an acoustic dipole in the folded non-hands-free call mode. A processing unit is provided in the installation cavity and is electrically connected to the microphone and the sound-emitting component. The processing unit is used to receive the audio signal output by the microphone, convert it into an audio signal with an anti-phase, and send it to the first sound-emitting unit to output an anti-phase sound.

2. The electronic device according to claim 1, wherein The foldable shell includes a first shell and a second shell that are rotatably connected to switch the foldable shell between folding and unfolding, and the sound pickup hole is provided in the first shell or the second shell, wherein, The first shell or the second shell is provided with a first sound outlet, the first sound outlet corresponds to a first sound emitting unit, and the first sound emitting unit outputs anti-phase sound; Alternatively, the first shell or the second shell is provided with one first sound outlet hole, the one first sound outlet hole corresponds to at least two first sound emitting units, and the at least two first sound emitting units jointly output anti-phase sounds; Alternatively, the first shell or the second shell is provided with two first sound outlet holes, each of the first sound outlet holes corresponds to one first sound emitting unit, and the two first sound emitting units jointly output anti-phase sounds; Alternatively, the first shell and the second shell are both provided with at least one first sound outlet hole, each first sound outlet hole corresponds to at least one first sound emitting unit, and one or at least two of all the first sound emitting units are used to output anti-phase sound.

3. The electronic device according to claim 1, wherein The foldable shell includes a first shell, a second shell, and a third shell that are rotatably connected to switch the foldable shell between folding and unfolding. The sound pickup hole is provided in the first shell, wherein: At least one first sound outlet is provided on the first shell, the second shell or the third shell; Or at least two of the first shell, the second shell and the third shell are each provided with at least one first sound outlet hole.

4. The electronic device according to claim 2 or 3, characterized in that: Two first sound-emitting units are provided on the first shell or the second shell.

5. The electronic device according to claim 4, characterized in that The two second sound-emitting units are simultaneously arranged on the first shell or the second shell.

6. The electronic device according to claim 4, wherein: The foldable shell includes a first surface, a second surface opposite to the first surface, and a side surface connected between the first surface and the second surface. The first sound hole is provided on the side surface, and the second sound hole is provided on the side surface or at the connection position between the side surface and the first surface.

7. The electronic device according to claim 1, wherein: The processing unit includes: an audio processing unit, the audio processing unit being electrically connected to the microphone and the sound-emitting component, and configured to receive the audio signal output by the microphone, perform noise reduction processing on the audio signal, and convert the received audio signal into an anti-phase audio signal; a central processing unit, the central processing unit being electrically connected to the audio processing unit and configured to receive the audio signal after noise reduction processing by the audio processing unit; A transmitting unit is electrically connected to the central processing unit and is used to send the audio signal output by the microphone.

8. The electronic device according to claim 7, wherein: The transmitting unit includes a radio frequency processing unit and an antenna. The radio frequency processing unit is electrically connected to the central processing unit and the antenna. The radio frequency processing unit is used to receive signals from the central processing unit, and the antenna is used to send audio signals.

9. The electronic device according to claim 1, wherein: The electronic devices are mobile phones, smart wearable devices, voice recorders, and computers.

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