Confidential communication device with noise reduction function

Abstract

The utility model discloses a confidential communication device with a noise reduction function, which belongs to the technical field of noise reduction communication equipment, comprises a communication mainframe box, and is characterized in that two groups of noise reduction earphones are arranged on two sides outside the communication mainframe box, and earphone wires on the noise reduction earphones are electrically connected with the communication mainframe box in an inserted manner; by arranging the call mainframe box composed of the interference sound source module, the interference loudspeaker, the call sound source module and the like, noise can be actively released and prevented from being eavesdropped during private call, meanwhile, the noise reduction earphone is matched, and the sound definition of the two parties in a noisy environment is greatly improved through the sound insulation film and the noise reduction earplug; meanwhile, in cooperation with clamping of a shielding cover, a sealing ring, a silencing lining and other assemblies in the private communication mechanism, communication recognition through the mouth shape can be prevented, and the risk that sound outsourcing is monitored is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction communication equipment, in particular to a confidential communication device with a noise reduction function. Background Art

[0002] Telephone noise reduction collects noise, interference, and call audio during a call, compares the call audio with background noise, and uses digital signal processing to eliminate or reduce the noise signal, effectively improving call clarity and quality. Common telephone noise reduction technologies include acoustic noise reduction, digital noise reduction, and two-way noise reduction. Telephone noise reduction technology has a wide range of applications, primarily in areas such as telephone customer service, Internet telephony, conference calls, and remote work. For example, in the telephone customer service field, customers often experience poor call quality due to issues such as high ambient noise or poor signal quality. Telephone noise reduction technology can effectively address these issues and improve customer satisfaction.

[0003] In the current living environment, users' privacy has become very insecure, especially in private environments. When discussing sensitive topics, they are often eavesdropped by outsiders, causing harm or loss. Therefore, a confidential call device with noise reduction function is needed to solve this problem. Utility Model Content

[0004] The main purpose of the present invention is to provide a confidential communication device with a noise reduction function, which solves the problems mentioned in the above background technology.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A secure communication device with a noise reduction function, comprising a communication main box, characterized in that: two sets of noise reduction headphones are provided on both sides of the exterior of the communication main box, and the headphone cables of the noise reduction headphones are electrically plugged into the communication main box;

[0007] The noise-cancelling headphones further include two sets of earphone shells, one set of which is rotatably connected to the outer wall of the earphone shells, and the other set of earphone shells is fixedly connected to the earphone wire, and the other end of the rotatable connecting rod is provided with a private call mechanism;

[0008] The private conversation mechanism comprises a shielding cover, the outer wall of the shielding cover is coated with a reflective coating, both sides of the inner wall of the shielding cover are sandwiched with sound-absorbing liners, and a microphone is fixed in the middle of the inner wall of the shielding cover.

[0009] Furthermore, an interference sound source module is fixed at the bottom of the call host box, the top wire of the interference sound source module is connected to the interference loudspeaker, and a call sound source module electrically connected to the headphone line is fixed on one side of the inner wall of the call host box.

[0010] Furthermore, an earphone circuit module is installed inside the earphone shell, and an earmuff shell is integrally installed on the outer side of the earphone shell. The earmuff shell is made of soft material, and a sound insulation membrane is installed in the internal slot. A noise reduction earplug electrically connected to the earphone circuit module is passed through the sound insulation membrane.

[0011] Furthermore, a head clip is integrally connected to the top of the earmuff shell, and internal circuits of the head clip are electrically connected to the headphone circuit module.

[0012] Furthermore, the interior of the rotating connecting rod is a wire groove cavity, through which the circuit for installing the pickup passes, and a sealing ring is glued to the outer wall of the shielding cover.

[0013] Beneficial technical effects of the utility model:

[0014] By setting up a call host box composed of components such as an interference sound source module, an interference loudspeaker, and a call sound source module, noise can be actively released during private calls to prevent eavesdropping. At the same time, in conjunction with noise-canceling headphones, the use of sound insulation membranes and noise-canceling earplugs greatly improves the sound clarity of both parties in noisy environments. At the same time, with the support of components such as the shielding cover, sealing ring, and noise-absorbing lining in the private call mechanism, it can not only prevent calls from being recognized through lip shape, but also reduce the risk of external voice monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a structural diagram of a preferred embodiment of a secure communication device with noise reduction function according to the present utility model;

[0016] Figure 2 This is a structural diagram of an open communication main box in a preferred embodiment of a secure communication device with noise reduction function according to the present invention;

[0017] Figure 3 A schematic diagram of the internal structure of a single-sided noise reduction earphone in a preferred embodiment of a secure communication device with noise reduction function according to the present invention;

[0018] Figure 4 The figure is a schematic diagram of the connection relationship between the private call mechanism and the noise reduction earphones in a preferred embodiment of a private call device with noise reduction function according to the present invention.

[0019] The following are the descriptions of the reference numerals:

[0020] 1. Call main chassis; 101. Interference sound source module; 102. Interference amplifier; 103. Call sound source module; 2. Noise-canceling headphones; 201. Head clip; 202. Headphone shell; 203. Rotating connecting rod; 204. Noise-canceling earplugs; 205. Sound insulation membrane; 206. Earmuff shell; 207. Headphone cable; 208. Headphone circuit module; 3. Private call mechanism; 301. Shielding cover; 302. Reflective coating; 303. Noise-absorbing lining; 304. Sealing ring; 305. Pickup. DETAILED DESCRIPTION

[0021] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0022] like Figures 1-4 As shown, the present embodiment provides a confidential call device with a noise reduction function, comprising a call host case 1, characterized in that: two sets of noise reduction headphones 2 are provided on both sides of the outside of the call host case 1, and the headphone wires 207 on the noise reduction headphones 2 are electrically plugged into the call host case 1; the noise reduction headphones 2 also include two sets of headphone shells 202, one set of headphone shells 202 is rotatably connected to the outer wall of a rotation connecting rod 203, and the other set of headphone shells 202 is fixed through and through the headphone wire 207, and a private call mechanism 3 is provided at the other end of the rotation connecting rod 203; the private call mechanism 3 includes a shielding cover 301, the outer wall of the shielding cover 301 is coated with a reflective coating 302, and sound-absorbing linings 303 are sandwiched on both sides of the inner wall of the shielding cover 301, and a microphone 305 is fixed in the middle of the inner wall of the shielding cover 301.

[0023] In the above embodiment, the length of the earphone cable 207 is retractable, which is convenient for long-distance calls between the two parties. The reflective coating 302 can reduce the interference of surrounding noise on the microphone 305. It is a common sound insulation coating. Combined with the energy release effect of the internal sound-absorbing lining 303, it reduces the propagation of noise energy and improves the clarity of the conversation sound source. The sound-absorbing lining 303 is made of sponge material.

[0024] An interference sound source module 101 is fixed at the bottom of the call host box 1, and the top wire of the interference sound source module 101 is connected to the interference loudspeaker 102. A call sound source module 103 electrically connected to the headphone line 207 is fixed on one side of the inner wall of the call host box 1.

[0025] In the above embodiment, the interference sound source module 101 is a high-decibel, particularly noisy interference sound. The call sound source module 103 is used to process not only the sound source of the conversation, but also some external noise. However, the built-in voice algorithm filters out the external interference noise, and the effective voice content is transmitted to the other party's headphones.

[0026] An earphone circuit module 208 is installed inside the earphone shell 202, and an earmuff shell 206 is integrally installed on the outer side of the earphone shell 202. The earmuff shell 206 is made of soft material, and a sound insulation membrane 205 is installed in the internal slot. A noise reduction earplug 204 electrically connected to the earphone circuit module 208 passes through the sound insulation membrane 205. The sound insulation membrane 205 reduces the interference of external noise vibrations on the earphone shell 202. The noise reduction earplug 204 is directly inserted into the ear to improve the noise reduction effect.

[0027] The top of the earmuff shell 206 is integrally connected to the headband 201 , and the internal circuits of the headband 201 are electrically connected to the earphone circuit module 208 .

[0028] The interior of the rotating connecting rod 203 is a wire groove cavity, through which the line for installing the pickup 305 passes. A sealing ring 304 is glued to the outer wall of the shielding cover 301, and the sealing ring 304 can improve the fit with the skin around the mouth.

[0029] Working principle of this device: When the device is in use, the call host box 1 is connected to an external power supply, and the users each wear noise reduction headphones 2 and communicate in a closed space around their mouths through the private call mechanism 3. After the sound is picked up by the microphone 305, it is transmitted through the headphone circuit module 208 and processed by the sound source module, and then transmitted to the headphone on the other side. Both parties can communicate safely in a private environment.

[0030] The shielding cover 301 can prevent the mouth shape from being secretly photographed by outsiders when speaking, thereby obtaining the content of the conversation, while the sealing ring 304 can reduce the sound leakage;

[0031] The interference sound source module 101 has built-in noises of various frequencies, which can be released to the surroundings through the interference loudspeaker 102, and the reflective coating 302 can reduce some of the interference of the noise on the microphone 305. The collected noise and human voice can be greatly filtered out after processing in the call sound source module 103, thereby improving the clarity of the human voice and achieving the purpose of noise reduction and private calls.

[0032] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention based on the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A confidential communication device with a noise reduction function, comprising a communication main box (1), characterized in that: Two sets of noise-canceling headphones (2) are provided on both sides of the exterior of the communication host box (1), and the headphone wires (207) on the noise-canceling headphones (2) are electrically plugged into the communication host box (1); The noise-cancelling earphones (2) further comprise two sets of earphone shells (202), wherein a rotating connecting rod (203) is rotatably connected to the outer wall of one set of earphone shells (202), and the other set of earphone shells (202) is fixedly connected to the earphone wire (207), and a private call mechanism (3) is provided at the other end of the rotating connecting rod (203); The private conversation mechanism (3) comprises a shielding cover (301), the outer wall of the shielding cover (301) is coated with a reflective coating (302), the inner walls of the shielding cover (301) are sandwiched with sound-absorbing linings (303) on both sides, and a microphone (305) is fixed in the middle of the inner wall of the shielding cover (301).

2. The secure communication device with noise reduction function according to claim 1, characterized in that: An interference sound source module (101) is fixed to the bottom of the communication host box (1), the top wire of the interference sound source module (101) is connected to an interference loudspeaker (102), and a communication sound source module (103) electrically connected to the earphone line (207) is fixed to one side of the inner wall of the communication host box (1).

3. The secure communication device with noise reduction function according to claim 2, characterized in that: An earphone circuit module (208) is installed inside the earphone shell (202), and an earmuff shell (206) is integrally installed on one side of the outside of the earphone shell (202). The earmuff shell (206) is made of soft material, and a sound insulation membrane (205) is installed in the internal card slot. A noise reduction earplug (204) electrically connected to the earphone circuit module (208) is passed through the sound insulation membrane (205).

4. The secure communication device with noise reduction function according to claim 3, characterized in that: The top of the earmuff shell (206) is integrally connected with a head clip (201), and the internal circuit of the head clip (201) is electrically connected to the earphone circuit module (208).

5. The secure communication device with noise reduction function according to claim 4, characterized in that: The interior of the rotating connecting rod (203) is a wire slot cavity, through which a line for installing the pickup (305) passes, and a sealing ring (304) is glued to the outer wall of the shielding cover (301).

Images