Anti-recording voice communication safety equipment based on voiceprint

Abstract

The invention discloses anti-recording voice communication safety equipment based on voiceprint, and relates to the technical field of voice communication safety, the anti-recording voice communication safety equipment comprises a voice communication safety equipment shell, and the upper end of the voice communication safety equipment shell is movably provided with a protection assembly through a damping rotating shaft. Voiceprint authentication and audio interference are realized through modules integrated in a shell, when a user speaks, a voice acquisition module acquires an original voice signal, a voiceprint is compared with a pre-stored authorized voiceprint through a main control module and a voiceprint recognition module, a starting instruction is sent if authentication is passed, and a locking state is kept if authentication is not passed; and after identity authentication, the voice acquisition module performs call voice, and the audio interference module outputs an interference signal at the same time, so that the voice recording device can be interfered, and illegal voice recording of the receiving end device can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of voice communication security, in particular to a voice communication security device based on voiceprint for preventing recording. BACKGROUND

[0002] The voice communication security device for preventing recording is mainly used for protecting the content of the call from being illegally eavesdropped or recorded, and is realized by interfering or shielding the function of the recording device. In order to solve the problem that the content of the voice communication is easily illegally recorded at the receiving end in the prior art, and the content of the communication can still be recorded at the device end of the opposite party, and lack of control over the receiving party, the present application provides a voice communication security device based on voiceprint for preventing recording. Therefore, the prior art has a significant defect that they cannot effectively prevent the content of the call from being illegally recorded by the legal receiving party at the receiving end of the communication, which forms a safety blind area, that is, the content of the call is safe during the transmission process, but is exposed to the risk of recording after reaching the destination. The present application aims to solve this specific technical problem. SUMMARY

[0003] The present application aims to provide a voice communication security device based on voiceprint for preventing recording.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a voice communication security device based on voiceprint for preventing recording, comprising a voice communication security device shell, a protection assembly movably mounted on the upper end of the voice communication security device shell through a damping hinge shaft.

[0005] The protection assembly comprises a flip cover, the front end outer surface of the flip cover is fixedly connected with a positioning plate, metal sheets are arranged in the grooves in the bottom of the positioning plate, a positioning groove is arranged on the front end of the voice communication security device shell, and magnetic adsorption sheets are arranged in the grooves in the positioning groove.

[0006] A main control module is installed at one end of the inside of the voice communication security device shell, an audio interference module is installed at the other end of the inside of the voice communication security device shell, a voice collection module is installed at one end of the audio interference module, and a voiceprint recognition module is installed between the voice collection module and the main control module.

[0007] As a further scheme of the present application, an operation button is arranged at one end of the voice communication security device shell, a sound collecting hole is arranged at the other end of the voice communication security device shell, and a display screen is installed between the sound collecting hole and the operation button.

[0008] As a further scheme of the present application, the flip cover is fixedly connected with a sealing ring, and a sealing groove is formed at the edge of the upper end of the voice communication security device shell.

[0009] As a further scheme of the present application, the metal sheet and the magnetic adsorption sheet are arranged in the same number and one-to-one correspondence.

[0010] As a further scheme of the present application, the voice communication security device shell is internally provided with a communication module at one end of the voiceprint recognition module, and is internally provided with a power module at the other end of the voiceprint recognition module.

[0011] As a further scheme of the present application, the main control module is electrically connected with the voiceprint recognition module, the main control module is electrically connected with the voice collection module, the main control module is electrically connected with the communication module, and the main control module is electrically connected with the audio interference module.

[0012] As a further scheme of the present application, the voice communication security device shell is further provided with a physical switch at one end and is connected with the main control module, which is used for manually starting or stopping the audio interference module.

[0013] As a further scheme of the present application, the power module provides stable power supply for the communication module, and the power supply voltage is maintained at 3.3-5V. When the communication module establishes a voice channel and transmits an audio signal, the power module automatically adjusts the output power, so that the signal transmission strength of the communication module is maintained between-85dBm and-40dBm, and the uninterrupted transmission of the voice signal is ensured. After the communication module receives the call voice signal output by the voice collection module, the signal is subjected to noise reduction processing, and then the processed voice signal and the interference signal of the audio interference module are subjected to frequency band isolation, so as to avoid the interference signal from mixing into the voice transmission channel and affecting the call quality.

[0014] As a further scheme of the present application, after the main control module receives the authentication result transmitted by the voiceprint recognition module, If the authentication is passed, the main control module sends a starting instruction to the voice collection module and sends an interference signal output instruction to the audio interference module, so that the voice collection module collects the call voice and the audio interference module outputs the interference signal synchronously start; If the authentication is not passed, the main control module sends a locking instruction to the voice collection module and the audio interference module to prohibit the output signals of the two modules; After the main control module receives the control signal of the physical switch, the start and stop of the audio interference module can be independently controlled. When the physical switch is in the closed state, the main control module cuts off the signal output of the audio interference module, and only the call voice collection function of the voice collection module is reserved.

[0015] As a further scheme of the present application: when the flip cover is closed, the sealing ring closely fits the sealing groove to form a closed space to wrap the pickup end of the voice collection module, thereby blocking external environmental noise from entering the pickup end to interfere with voice collection. After the flip cover is fixed by magnetic attraction of the metal sheet and the magnetic adsorption sheet, the plate body of the flip cover covers the outside of the sound collection hole, physically blocking the sound transmission path between the sound collection hole and the voice collection module, thereby preventing the voice collection module from accidentally collecting sound in an unauthorized state. The "click" sound generated by the magnetic attraction of the magnetic adsorption sheet and the metal sheet when closed synchronously triggers the main control module to send a protection state signal to the display screen, and the display screen displays a "protection has taken effect" mark, prompting the user device to be in an anti-eavesdropping state.

[0016] The present application also proposes an anti-recording voice communication method based on voiceprint, comprising the following steps: Collecting user voice signals and performing voiceprint authentication; If the voiceprint authentication is passed, the call voice collection and the audio interference signal output to the remote recording device are simultaneously started; If the voiceprint authentication is not passed, the call voice collection and the audio interference signal output are locked.

[0017] The core of the present application is that the authentication result of the voiceprint recognition module is used as a necessary condition for starting the audio interference module by the main control module, thereby constructing a condition-triggered anti-recording mechanism, which ensures that the anti-recording function is activated only when the legal user is talking, thereby dynamically extending the protection boundary of anti-recording from the local device to the communication opposite end.

[0018] Compared with the prior art, the technical scheme has the following beneficial effects: 1. The voiceprint authentication and audio interference are realized by the modules integrated in the shell, when the user speaks, the voice collection module collects the original voice signal, and the voiceprint is compared with the pre-stored authorized voiceprint by the main control module and the voiceprint recognition module, the enable instruction is sent if the authentication is passed, and the lock state is maintained if the authentication is not passed, thereby ensuring that the device user is a legal authorized user, and the call voice is collected by the voice collection module after identity authentication, and the interference signal is output by the audio interference module, thereby interfering with the recording device, and effectively preventing illegal recording of the receiving end device. 2. The protection assembly is installed, and when the flip cover is closed, the connection channel of the microphone can be physically blocked or disconnected, thereby further preventing eavesdropping, and the flip cover is connected and fixed by the magnetic adsorption sheet and the metal sheet, and the "click" sound generated by the magnetic attraction when closed provides clear feedback to the user, so that the user is sure that the device is closed, and the user's sense of security is improved.

[0019] Through the linkage mechanism, the application realizes the technical effect of 1+1>2, which not only solves the identity authentication problem, but also creatively uses the identity authentication result to control the recording environment of the opposite end, realizes the security ability from "managing oneself" to "managing the opposite", which cannot be realized by a single technical means. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the whole in the embodiment of the application; Figure 2 is a schematic view of the inside in the embodiment of the application; Figure 3 is a schematic view of the split of the voice communication security device shell and the flip cover plate in the embodiment of the application; Figure 4 is a partial sectional view of the flip cover plate in the embodiment of the application; Figure 5 is an enlarged view of A in the embodiment of the application; Figure 6 is an enlarged view of B in the embodiment of the application.

[0021] In the figure: 1, voice communication security device shell; 11, sound collecting hole; 12, display screen; 13, operation button; 14, sealing groove; 15, positioning groove; 16, magnetic adsorption piece; 2, protection assembly; 21, flip cover plate; 22, sealing ring; 23, positioning plate; 24, metal sheet; 3, main control module; 4, communication module; 5, voiceprint recognition module; 6, power module; 7, audio interference module; 8, voice collection module. DETAILED DESCRIPTION

[0022] The specific embodiments of the application will be further described below in conjunction with the drawings, and it should be noted that the description of the embodiments is used to help understand the application, but does not constitute a limitation on the application.

[0023] In addition, the technical features involved in each of the embodiments of the application described below can be combined with each other as long as there is no conflict between them.

[0024] Please refer to the drawings Figure 1 - the drawings Figure 6 The voice communication security device based on voiceprint of the application comprises a voice communication security device shell 1, and a protection assembly 2 is movably installed on the upper end of the voice communication security device shell 1 through a damping rotating shaft.

[0025] In the first embodiment, the protective component 2 includes a flip cover 21. A positioning plate 23 is fixedly connected to the outer surface of the front end of the flip cover 21. Metal sheets 24 are provided in the grooves arranged at the bottom of the positioning plate 23. A positioning groove 15 is provided on the inner side of the front end of the voice communication security device housing 1. Magnetic adsorption sheets 16 are provided in the grooves arranged on the positioning groove 15. Specifically, a sealing ring 22 is fixedly connected to the outer surface of the flip cover 21, and a sealing groove 14 is provided at the upper edge of the voice communication security device housing 1. When the flip cover 21 is closed, the sealing ring 22 is embedded in the sealing groove 14. In this embodiment, when the flip cover 21 is closed, the sealing ring 22 is embedded in the sealing groove 14, which can protect the internal structure and reduce the impact of external impurities on the interior. Specifically, the number of metal sheets 24 and magnetic adsorption sheets 16 are the same, and they correspond one-to-one; In this embodiment, the flip cover 21 is connected and fixed by the magnetic adsorption sheet 16 and the metal sheet 24. The "click" sound generated when the magnetically closed device provides clear feedback to the user, making the user confident that the device has been turned off and enhancing the user's sense of security.

[0026] In Example 2, a main control module 3 is installed at one end of the housing 1 of the voice communication security device, and an audio interference module 7 is installed at the other end of the housing 1. The interference signal of the audio interference module 7 has little impact on human hearing and does not affect the call experience, but can effectively interfere with the recording device. A voice acquisition module 8 is installed at one end of the audio interference module 7, and a voiceprint recognition module 5 is installed between the voice acquisition module 8 and the main control module 3. Specifically, the voice communication security device housing 1 has an operation button 13 at one end and a sound receiving hole 11 at the other end. A display screen 12 is installed between the sound receiving hole 11 and the operation button 13. Specifically, a communication module 4 is installed inside the housing 1 of the voice communication security device and at one end of the voiceprint recognition module 5, and a power module 6 is installed inside the housing 1 of the voice communication security device and at the other end of the voiceprint recognition module 5. In this embodiment, the communication module 4 is used to establish a voice channel and transmit audio signals, and the power module 6 can supply power to each module. An interface is provided on one side of the power module for user charging. Specifically, the main control module 3 is electrically connected to the voiceprint recognition module 5, the main control module 3 is electrically connected to the voice acquisition module 8, the main control module 3 is electrically connected to the communication module 4, and the main control module 3 is electrically connected to the audio interference module 7. Specifically, a physical switch is also provided at one end of the housing 1 of the voice communication security device and connected to the main control module 3, which is used to manually turn the audio interference module 7 on or off; The audio interference module 7 adopts DDS (direct digital frequency synthesis) technology to generate an ultrasonic signal with a frequency in the range of 18 kHz to 22 kHz and a pseudo-random jump cycle of 0.5 s. The signal is controlled at a sound pressure level below 60 dB SPL after being amplified by a power amplifier, ensuring that it is inaudible to the human ear. Tests have shown that the specific mode of the signal can produce about 15-25 dB of background noise in the recording file of a mainstream smart phone, effectively reducing speech intelligibility, while having no effect on the 300 Hz-3.4 kHz voice signal transmitted by the communication module 4.

[0027] In this embodiment, when having a routine conversation with colleagues, anti-recording is not the primary requirement, and the user can turn off the interference to obtain the clearest and unmodified conversation sound quality.

[0028] In the present application, the power module 6 provides stable power supply for the communication module 4, and the supply voltage is maintained at 3.3-5V. When the communication module 4 establishes a voice channel and transmits an audio signal, the power module 6 automatically adjusts the output power, so that the signal transmission strength of the communication module 4 is maintained between -85 dBm and -40 dBm, ensuring uninterrupted transmission of the voice signal. After the communication module 4 receives the conversation voice signal output by the voice collection module 8, the signal is processed, and then the processed voice signal is frequency band isolated from the interference signal of the audio interference module 7, to avoid the interference signal from mixing into the voice transmission channel and affecting the call quality.

[0029] In the present application, after the main control module 3 receives the authentication result transmitted by the voiceprint recognition module 5, if the authentication is passed, it sends a start instruction to the voice collection module 8 and sends an interference signal output instruction to the audio interference module 7, so that the voice collection module 8 collects the conversation voice and the audio interference module 7 outputs the interference signal synchronously. If the authentication is not passed, the main control module 3 sends a locking instruction to the voice collection module 8 and the audio interference module 7 to prohibit the output of signals. The main control module 3 receives the control signal of the physical switch and can independently control the start and stop of the audio interference module 7. When the physical switch is in the off state, the main control module 3 cuts off the signal output of the audio interference module 7, and only the conversation voice collection function of the voice collection module 8 is retained.

[0030] In the present application, when the flip cover plate 21 is closed, the sealing ring 22 is tightly attached to the sealing groove 14 to form a closed space to wrap the pickup end of the voice collection module 8, blocking external environmental noise from entering the pickup end to interfere with voice collection. After the flip cover plate 21 is magnetically attracted and fixed by the metal sheet 24 and the magnetic adsorption sheet 16, the plate body covers the outside of the sound hole 11, physically blocking the sound transmission path between the sound hole 11 and the voice collection module 8, preventing the voice collection module 8 from accidentally collecting sound in an unauthorized state. The "click" sound generated by the magnetic attraction and closure of the magnetic adsorption sheet 16 and the metal sheet 24 synchronously triggers the main control module 3 to send a protection state signal to the display screen 12, and the display screen 12 displays the "protection has taken effect" mark, prompting the user equipment to be in an anti-eavesdropping state.

[0031] Working principle: First, the user opens the flip cover plate 21 during a call. When the user speaks, the voice collection module 8 collects the original voice signal, and the voiceprint is compared with the pre-stored authorized voiceprint through the main control module 3 and the voiceprint recognition module 5. If the authentication is passed, an enable instruction is sent, and if the authentication is not passed, the lock state is maintained, thereby ensuring that the device user is a legal authorized user. After identity authentication, the voice collection module 8 performs a call voice, and the audio interference module 7 outputs an interference signal, thereby interfering with the recording device, effectively preventing illegal recording of the receiving end device. After the call is over, the flip cover plate 21 is closed, and the magnetic adsorption sheet 16 is magnetically attracted and adsorbed to the metal sheet 24. Thus, the entire working process is completed.

[0032] The above front, back, left, right, up, down are based on the Figure 1 in the drawings.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0034] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the described embodiments.

[0035] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the scope of protection of the present application.

Claims

1. Anti-recording voice communication security device based on voiceprint, comprising a voice communication security device housing (1), characterized in that: The voice communication security device shell (1) upper end is movably installed with a protection assembly (2) through a damping rotating shaft; The protection assembly (2) comprises a flip cover (21), the front end outer surface of the flip cover (21) is fixedly connected with a positioning plate (23), the bottom of the positioning plate (23) is provided with a metal sheet (24) in the groove, the front end of the voice communication security device shell (1) is provided with a positioning groove (15) on the inner side, and the positioning groove (15) is provided with a magnetic adsorption sheet (16) in the groove. The voice communication security device shell (1) is internally provided with a main control module (3) at one end, an audio interference module (7) at the other end, a voice collection module (8) at one end of the audio interference module (7), and a voiceprint recognition module (5) between the voice collection module (8) and the main control module (3).

2. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The voice communication security device shell (1) is provided with an operation button (13) at one end, and a sound collecting hole (11) at the other end, and a display screen (12) is installed between the sound collecting hole (11) and the operation button (13).

3. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The outer surface of the flip cover (21) is fixedly connected with a sealing ring (22), and the edge of the upper end of the voice communication security device shell (1) is provided with a sealing groove (14), and the sealing ring (22) is embedded in the sealing groove (14) when the flip cover (21) is closed.

4. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The number of the metal sheet (24) and the magnetic adsorption sheet (16) is the same, and they are one-to-one corresponding.

5. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The voice communication security device shell (1) is internally provided with a communication module (4) at one end of the voiceprint recognition module (5) and a power module (6) at the other end of the voiceprint recognition module (5).

6. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The main control module (3) is electrically connected with the voiceprint recognition module (5), the voice collection module (8), the communication module (4) and the audio interference module (7).

7. The voiceprint-based anti-recording voice communication security device according to claim 1, characterized in that: The voice communication security device shell (1) is further provided with a physical switch at one end, which is connected with the main control module (3) and used for manually starting or stopping the audio interference module (7).

8. The voiceprint-based anti-recording voice communication security device according to claim 5, characterized in that, The power module (6) provides stable power supply for the communication module (4), and the power supply voltage is maintained at 3.3-5V, when the communication module (4) establishes a voice channel and transmits an audio signal, the power module (6) automatically adjusts the output power, so that the signal transmission strength of the communication module (4) is maintained between-85dBm and-40dBm; After the communication module (4) receives the voice signal output by the voice collection module (8), the signal is processed, and then the processed voice signal and the interference signal of the audio interference module (7) are frequency band isolated.

9. The voiceprint-based anti-recording voice communication security device according to claim 6, characterized in that, The main control module (3) receives the authentication result transmitted by the voiceprint recognition module (5), if the authentication is passed, sends the start instruction to the voice collection module (8), and sends the interference signal output instruction to the audio interference module (7), so that the voice collection module (8) and the audio interference module (7) start synchronously; if the authentication is not passed, the main control module (3) sends the locking instruction to the voice collection module (8) and the audio interference module (7), and prohibits the output signals of the two; The main control module (3) receives the control signal of the physical switch, independently controls the start and stop of the audio interference module (7), when the physical switch is in the closed state, the main control module (3) cuts off the signal output of the audio interference module (7), and only the voice collection module (8) is reserved for the voice collection function.

10. The voiceprint-based anti-recording voice communication security device according to claim 3, characterized in that, When the flip cover plate (21) is closed, the sealing ring (22) is tightly attached to the sealing groove (14) to form a closed space to wrap the pickup end of the voice collection module (8), and the external environmental noise is prevented from entering the pickup end to interfere with the voice collection; The flip cover plate (21) is fixed by magnetic attraction of the metal sheet (24) and the magnetic adsorption sheet (16), the plate body covers the outside of the sound collecting hole (11), physically blocks the sound transmission path between the sound collecting hole (11) and the voice collection module (8), and prevents the voice collection module (8) from accidentally collecting sound in an unauthorized state; The "click" sound generated by the magnetic attraction of the magnetic adsorption sheet (16) and the metal sheet (24) synchronously triggers the main control module (3) to send the protection state signal to the display screen (12), the display screen (12) displays the "protection has taken effect" mark, prompting the user equipment to be in the anti-eavesdropping state.

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