Intelligent wearable device capable of protecting voice privacy

Abstract

The invention discloses an intelligent wearable device capable of protecting voice privacy. The intelligent wearable device is worn outside the mouth of a user through a cover body so as to shield the mouth of the user. The first pickup module collects first sound waves in a first sound receiving area, namely original sound generated when a user speaks to generate a first sound wave signal, the second pickup module collects second sound waves outside the cover body to generate a second sound wave signal, and the volume setting module receives a user instruction to generate a volume setting signal. And the volume adjusting module generates a third sound wave according to the first sound wave signal, the second sound wave signal and the volume setting signal, and processes the first sound wave through the third sound wave to obtain a second sound wave meeting the volume setting requirement. The intelligent wearable device can be used for greatly reducing the volume when the user speaks, and sound leakage is avoided; and the voice of the user during speaking can be enhanced, and the effect of a loudspeaker is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an intelligent wearable device capable of protecting voice privacy. Background Art

[0002] With the development of science and technology, personal privacy protection has received more and more attention. When having conversations in public places, how to protect the content of the conversation from being eavesdropped by others has become an important issue. The main function of existing protective equipment such as masks is to prevent dust and epidemic prevention, but it does not have the function of protecting voice privacy. Therefore, it is particularly important to develop a smart wearable device that can protect voice privacy. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a smart wearable device that can protect voice privacy, which can adjust the user volume when the user is speaking, so as to solve the technical problems raised in the background technology.

[0004] A smart wearable device capable of protecting voice privacy comprises: a cover body, which is used to be worn outside the mouth of a user, and the cover body has an inner side and an outer side opposite to each other, wherein the inner side is a side close to the mouth of the user, and the outer side is a side away from the mouth of the user;

[0005] A first sound pickup module is arranged inside the cover, and is used to collect a first sound wave in a first sound receiving area and generate a first sound wave signal corresponding to the first sound wave;

[0006] A second sound pickup module is arranged outside the cover body, and the second sound pickup module is used to collect a second sound wave in a second sound receiving area and generate a second sound wave signal corresponding to the second sound wave;

[0007] A volume setting module, arranged on the cover, and configured to receive a user instruction and generate a volume setting signal;

[0008] A volume adjustment module is arranged inside the cover body and connected to the first sound pickup module, the second sound pickup module and the volume setting module. The volume adjustment module is used to generate a third sound wave. The second sound wave obtained after the third sound wave processes the first sound wave meets the volume setting requirement; wherein the third sound wave is generated according to the first sound wave signal, the second sound wave signal and the volume setting signal.

[0009] Furthermore, the volume adjustment module includes:

[0010] a signal processing unit connected to the first sound pickup module, the second sound pickup module and the volume setting module, and configured to generate a third sound wave signal according to the first sound wave signal, the second sound wave signal and the volume setting signal;

[0011] A sound generating unit is connected to the signal processing unit and is used to generate the third sound wave according to the third sound wave signal.

[0012] Further, the signal processing unit includes a digital signal processor and an audio codec, and the first sound pickup module, the second sound pickup module and the sound generating unit are all connected to the audio codec;

[0013] The audio codec and the volume setting module are both connected to the digital signal processor.

[0014] Further, the volume setting module includes:

[0015] A communication module, connected to the mobile terminal for communication;

[0016] The processing unit is connected to the communication module, and the processing unit receives a user instruction sent by the user through the mobile terminal through the communication module to generate the volume setting signal.

[0017] Furthermore, the volume setting module also includes:

[0018] A key unit, the key unit is arranged outside the cover body, and the key unit is connected to the processing unit;

[0019] The processing unit is used to obtain a user instruction input by a user through the key unit to generate the volume setting signal.

[0020] Furthermore, the communication module is a Bluetooth module, a 4G module, a 5G module and / or a WiFi module.

[0021] Furthermore, it also includes a power supply module, which is arranged in the cover body and is used for supplying power.

[0022] Furthermore, the cover body includes an outer shell having an interlayer and a filling layer filled in the interlayer of the outer shell for sound insulation, and a wearing component is connected to the outer shell.

[0023] Furthermore, the inner surface of the outer shell has a silicone layer, and the filling layer is made of polyurethane.

[0024] Furthermore, a sealing ring extending along the circumference of the edge is provided on the inner side surface of the outer shell, and the sealing ring fits against the facial skin.

[0025] The beneficial effects of the present invention are embodied in:

[0026] The present invention provides a smart wearable device capable of protecting voice privacy, which is worn outside the user's mouth through a cover body to cover the user's mouth. The first sound pickup module collects the first sound wave in the first sound receiving area, that is, the original sound emitted by the user when speaking, to generate a first sound wave signal, the second sound pickup module collects the second sound wave outside the cover body to generate a second sound wave signal, the volume setting module receives a user instruction to generate a volume setting signal, and the volume adjustment module generates a third sound wave according to the first sound wave signal, the second sound wave signal and the volume setting signal, and the first sound wave is processed by the third sound wave to obtain a second sound wave that meets the volume setting requirement.

[0027] The smart wearable device can be used to significantly reduce the volume of the user's speech, that is, to achieve a mute function to prevent sound leakage; it can also enhance the user's voice when speaking, playing the role of a loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0029] Figure 1 A schematic diagram of a smart wearable device capable of protecting voice privacy provided by an embodiment of the present invention Figure 1 ;

[0030] Figure 2 A schematic diagram of a smart wearable device capable of protecting voice privacy provided by an embodiment of the present invention Figure 2 ;

[0031] Figure 3 A cross-sectional view of a cover body provided by an embodiment of the present invention;

[0032] Figure 4 An electrical structure block diagram of a smart wearable device capable of protecting voice privacy provided by an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the hardware platform structure of a smart wearable device capable of protecting voice privacy provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, a smart wearable device capable of protecting voice privacy comprises a cover body 1 for being worn outside a user's mouth, the cover body 1 having an inner side and an outer side relative to each other, wherein the inner side is a side close to the user's mouth and the outer side is a side away from the user's mouth; a first sound pickup module 2 is arranged on the inner side of the cover body 1, the first sound pickup module 2 is used to collect a first sound wave in a first sound receiving area, and generate a first sound wave signal corresponding to the first sound wave; a second sound pickup module 3 is arranged on the outer side of the cover body 1, the second sound pickup module 3 is used to collect a second sound wave in a second sound receiving area, and generate a second sound wave signal corresponding to the second sound wave; a volume setting module 9 is arranged on the cover body 1, the volume setting module 9 is used to receive a user instruction to generate a volume setting signal; a volume adjustment module 4 is arranged inside the cover body 1, connected to the first sound pickup module 2, the second sound pickup module 3 and the volume setting module 9, the volume adjustment module 4 is used to generate a third sound wave, the second sound wave obtained after the third sound wave processes the first sound wave meets the volume setting requirement; wherein the third sound wave is generated according to the first sound wave signal, the second sound wave signal and the volume setting signal.

[0037] When in use, the user wears the cover body 1 on the mouth, and the first sound pickup module 2 is arranged on the inner side of the cover body 1, and collects the original sound emitted by the user when speaking to generate a first sound wave signal. The second sound wave is the sound that can be heard from the outside of the cover body 1 after the original sound emitted by the user when speaking is processed by the volume adjustment module 4. The user can set the volume of the second sound wave through the volume setting module 9. The second sound pickup module 3 is arranged on the outside of the cover body 1, and collects the second sound wave to generate a second sound wave signal. The volume adjustment module 4 generates a third sound wave according to the first sound wave signal, the second sound wave signal and the volume setting signal. After adjusting the first sound wave signal through the third sound wave, the volume generated meets the second sound wave required by the user.

[0038] It can be understood that if the third sound wave has an opposite phase to the first sound wave, the same frequency and the same amplitude, the volume adjustment module 4 will play the third sound wave, and the third sound wave will be superimposed on the first sound wave to form a second sound wave. Since the third sound wave has an opposite phase to the first sound wave, the third sound wave can offset the first sound wave to form a second sound wave with an amplitude smaller than the first sound wave. The smaller the amplitude of the second sound wave, the smaller the sound that can be heard by the outside world. The third sound wave can even completely offset the first sound wave. At this time, the waveform of the second sound wave can be considered to be a straight line, that is, the silencing function is achieved.

[0039] Therefore, in the technical solution of the present application, the third sound wave generated by the volume adjustment module 4 has a phase opposite to that of the first sound wave and the same frequency. The volume adjustment module 4 only needs to adjust the amplitude of the third sound wave to adjust the amplitude of the second sound wave, thereby adjusting the volume of the sound that can be heard outside the cover body 1, reducing sound leakage, and better protecting the user's conversation privacy.

[0040] It is understandable that when the user wants to increase the volume of the speaking voice, it is only necessary that the third sound wave has the same phase and frequency as the first sound wave. After the third sound wave is superimposed on the first sound wave, the amplitude of the first sound wave can be enhanced, that is, the volume of the second sound wave is higher than that of the first sound wave.

[0041] Specifically, the volume adjustment module 4 includes a signal processing unit and a sound generating unit connected to the signal processing unit, and the input end of the signal processing unit is connected to the first sound pickup module 2, the second sound pickup module 3 and the volume setting module 9, and is used to generate a third sound wave signal according to the first sound wave signal, the second sound wave signal and the volume setting signal. The sound generating unit is used to generate a third sound wave according to the third sound wave signal. In this embodiment, the sound generating unit can use a speaker to generate a third sound wave through the speaker, and after adjusting the first sound wave, the second sound wave is obtained.

[0042] In this embodiment, Figure 5 As shown, the signal processing unit includes a digital signal processor and an audio codec, and the first sound pickup module 2, the second sound pickup module 3 and the sound generating unit are all connected to the audio codec. The audio codec and the volume setting module 9 are all connected to the digital signal processor. The model of the audio codec is TLV320AIC23B, and the model of the digital signal processor is TMS320VC550.

[0043] In this embodiment, the first sound pickup module 2 includes a first analog-to-digital conversion unit and a first sound pickup unit. The first sound pickup unit collects the first sound wave to generate a first preprocessed signal, which is an analog signal. The first preprocessed signal is then converted into a first sound wave signal by the first analog-to-digital conversion unit and outputted. The first sound wave signal is a digital signal.

[0044] The second sound pickup module 3 includes a second analog-to-digital conversion unit and a second sound pickup unit. The second sound pickup unit collects the second sound wave to generate a second preprocessed signal, which is an analog signal. The second preprocessed signal is then converted into a second sound wave signal by the second analog-to-digital conversion unit and output. The second sound wave signal is a digital signal.

[0045] The first sound pickup unit and the second sound pickup unit may both be miniature microphones.

[0046] A linear filter can also be connected between the first analog-to-digital conversion unit, the second analog-to-digital conversion unit and the audio codec. The linear filter can process the digital signal. The linear filter can remove burrs in the first sound wave signal and the second sound wave signal. The first sound wave signal and the second sound wave signal are then processed and analyzed through the audio codec to obtain frequency, phase and amplitude information of the first sound wave signal and the second sound wave signal in real time and send them to the digital signal processor.

[0047] In this embodiment, the digital signal processor generates a third sound wave signal according to the frequency, phase and amplitude information of the first sound wave signal, the frequency, phase and amplitude information of the second sound wave signal and the volume setting signal through the FxLMS algorithm, and sends the third sound wave signal to the audio codec. The audio codec drives the speaker to emit the third sound wave according to the third sound wave signal.

[0048] In this embodiment, the volume setting module 9 includes a communication module, a key unit and a processing unit, the communication module and the key unit are connected to the processing unit, and the processing unit is connected to a digital signal processor. The processing unit can be a single chip microcomputer.

[0049] The communication module is connected to the mobile terminal for communication. The processing unit receives a user instruction sent by the user through the mobile terminal through the communication module to generate a volume setting signal. The communication module can adopt a Bluetooth module, a 4G module, a 5G module and / or a WiFi module. The mobile terminal can be a smart phone, other wearable devices, a handheld computer, a tablet computer, etc. After the user establishes a connection with the communication module through the mobile terminal, the volume data is sent to the processing unit through the mobile terminal, so as to set and adjust the volume of the second sound wave.

[0050] The button unit is arranged outside the cover body 1. The processing unit is used to obtain the user instruction input by the user through the button unit to generate a volume setting signal. That is, the user can also send volume size data to the processing unit through the button unit to set and adjust the volume size of the second sound wave.

[0051] Furthermore, a power module is also provided in the housing 1, and the power module is used for supplying power. The power module can be a lithium battery, which can be charged by wire or wirelessly.

[0052] In this embodiment, Figure 3 As shown, the mask body 1 includes an outer shell 5 with an interlayer and a filling layer 6 filled in the interlayer of the outer shell 5 for sound insulation, and the outer shell 5 is connected to a wearing component 7. The wearing component 7 can be an elastic band, a strap with Velcro, or an ear strap, which is not specifically limited in this embodiment.

[0053] The inner surface of the outer shell 5 has a silicone layer, which is soft and can prevent users from feeling uncomfortable when wearing it. The filling layer 6 is made of polyurethane. The polyurethane sound insulation pad has the characteristics of high density and high strength, and can effectively isolate medium and high frequency noise. It is an efficient and environmentally friendly sound insulation material. The cover body 1 has a sound insulation function and can reduce the sound leakage through the cover body 1.

[0054] In addition, a sealing ring 8 extending along the circumferential direction of the edge is provided on the inner side surface of the outer shell 5 , and the sealing ring 8 fits the facial skin to further enhance the sound insulation effect of the mask body 1 after being worn.

[0055] In summary, the present invention provides a smart wearable device capable of protecting voice privacy, which is worn outside the user's mouth through a cover body to cover the user's mouth. The first sound pickup module collects the first sound wave in the first sound receiving area, that is, the original sound emitted by the user when speaking, to generate a first sound wave signal, the second sound pickup module collects the second sound wave outside the cover body to generate a second sound wave signal, the volume setting module receives a user instruction to generate a volume setting signal, and the volume adjustment module generates a third sound wave according to the first sound wave signal, the second sound wave signal and the volume setting signal, and the first sound wave is processed by the third sound wave to obtain a second sound wave that meets the volume setting requirement.

[0056] The smart wearable device can be used to significantly reduce the volume of the user's speech, that is, to achieve a mute function to prevent sound leakage; it can also enhance the user's voice when speaking, playing the role of a loudspeaker.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. 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 invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A smart wearable device capable of protecting voice privacy, characterized in that: include: A mask body (1) is used to be worn outside the mouth of a user, the mask body (1) having an inner side and an outer side opposite to each other, wherein the inner side is a side close to the mouth of the user, and the outer side is a side away from the mouth of the user; A first sound pickup module (2) is arranged inside the cover body (1), the first sound pickup module (2) being used to collect a first sound wave in a first sound receiving area and generate a first sound wave signal corresponding to the first sound wave; A second sound pickup module (3) is arranged outside the cover body (1), the second sound pickup module (3) being used to collect a second sound wave in a second sound receiving area and to generate a second sound wave signal corresponding to the second sound wave; A volume setting module (9) is arranged on the cover body (1), and the volume setting module (9) is used to receive a user instruction and generate a volume setting signal; A volume adjustment module (4) is arranged inside the cover body (1) and is connected to the first sound pickup module (2), the second sound pickup module (3) and the volume setting module (9); the volume adjustment module (4) is used to generate a third sound wave, wherein the second sound wave obtained after the third sound wave processes the first sound wave meets the volume setting requirement; wherein the third sound wave is generated according to the first sound wave signal, the second sound wave signal and the volume setting signal.

2. A smart wearable device capable of protecting voice privacy as claimed in claim 1, characterized in that: The volume adjustment module (4) comprises: a signal processing unit connected to the first sound pickup module (2), the second sound pickup module (3) and the volume setting module (9), and used to generate a third sound wave signal according to the first sound wave signal, the second sound wave signal and the volume setting signal; A sound generating unit is connected to the signal processing unit and is used to generate the third sound wave according to the third sound wave signal.

3. A smart wearable device capable of protecting voice privacy as claimed in claim 2, characterized in that: The signal processing unit comprises a digital signal processor and an audio codec, and the first sound pickup module (2), the second sound pickup module (3) and the sound generating unit are all connected to the audio codec; The audio codec and the volume setting module (9) are both connected to the digital signal processor.

4. The smart wearable device capable of protecting voice privacy as claimed in claim 2, characterized in that: The volume setting module (9) comprises: A communication module, connected to the mobile terminal for communication; The processing unit is connected to the communication module, and the processing unit receives a user instruction sent by the user through the mobile terminal through the communication module to generate the volume setting signal.

5. The smart wearable device capable of protecting voice privacy as claimed in claim 4, characterized in that: The volume setting module (9) further comprises: A key unit, the key unit being arranged outside the cover body (1) and connected to the processing unit; The processing unit is used to obtain a user instruction input by a user through the key unit to generate the volume setting signal.

6. The smart wearable device capable of protecting voice privacy as claimed in claim 4, characterized in that: The communication module is a Bluetooth module, a 4G module, a 5G module and / or a WiFi module.

7. The smart wearable device capable of protecting voice privacy as claimed in claim 1, characterized in that: It also comprises a power supply module, which is arranged in the cover body (1) and is used for supplying power.

8. The smart wearable device capable of protecting voice privacy as claimed in claim 1, characterized in that: The mask body (1) comprises an outer shell (5) having an interlayer and a filling layer (6) filled in the interlayer of the outer shell (5) for sound insulation, and a wearing component (7) is connected to the outer shell (5).

9. The smart wearable device capable of protecting voice privacy as claimed in claim 8, characterized in that: The inner surface of the outer shell (5) has a silicone layer, and the filling layer (6) is made of polyurethane.

10. The smart wearable device capable of protecting voice privacy according to claim 8, characterized in that: The inner side surface of the outer shell (5) is provided with a sealing ring (8) extending in the circumferential direction of the edge, and the sealing ring (8) is in contact with the facial skin.

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