CN110072167A - Air transmitted headset and its working method - Google Patents
Air transmitted headset and its working method Download PDFInfo
- Publication number
- CN110072167A CN110072167A CN201810058178.XA CN201810058178A CN110072167A CN 110072167 A CN110072167 A CN 110072167A CN 201810058178 A CN201810058178 A CN 201810058178A CN 110072167 A CN110072167 A CN 110072167A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005236 sound signal Effects 0.000 claims abstract description 35
- 210000003454 tympanic membrane Anatomy 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 8
- 230000000644 propagated effect Effects 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 241000209140 Triticum Species 0.000 claims 2
- 235000021307 Triticum Nutrition 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 210000000613 ear canal Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 206010042928 Syringomyelia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 210000001260 vocal cord Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The present invention relates to a kind of air transmitted headset and its working method, the present invention includes earphone and signal processor；Oscillating plate is provided in earphone；Oscillating plate is used to receive from the first extraneous voice signal；And in user's sounding, air vibration caused by the eardrum in user's ear is detected, and the air vibration that will test is converted to the second electric signal；Signal processor is used to the second electric signal being converted to second sound signal, and propagates second sound signal.The present invention may be implemented have earpiece and earphone function simultaneously, do not need to be equipped with microphone again, change sound transmission mode, can influence to avoid caused by ambient noise, to carry out the normal talking under noisy environment by earphone, oscillating plate and signal processor.
Description
Technical field
The invention belongs to fields of communication technology, and in particular to a kind of air transmitted headset and its working method.
Background technique
In the related technology, headset includes earphone and microphone, with earphone listening, with microphone sounding.Microphone is placed
Beside mouth, the noise of ambient enviroment, noise can all be sent out, be will cause when being spoken using microphone by user
Noise is very big, and other side can not hear clearly, and use is very inconvenient.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide air transmitted headset and its work
Method is easy to be caused other side to hear more noise and sound of can not hear clearly by ambient noise interference to solve headset in the prior art
The problem of sound.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of air transmitted headset, comprising: earphone and letter
Number processor；
Oscillating plate is provided in the earphone；
The oscillating plate is used to receive from the first extraneous voice signal；And in user's sounding, user's ear is detected
Air vibration caused by eardrum in piece, and the air vibration that will test is converted to the second electric signal；
The signal processor is used to second electric signal being converted to second sound signal, and propagates the rising tone
Sound signal.
Further, further include
First voice signal is propagated by first passage, and the second sound signal is transmitted in second channel,
The headset further include:
Selection key connects the first passage or the second channel for selecting；
The oscillating plate is specifically used for: when the selection key selects to connect the first passage, will pass through first passage
The first voice signal propagated is converted to air vibration, described from extraneous voice signal to receive；And in the selection
When the second channel is connected in key selection, in user's sounding, air vibration caused by the eardrum in user's ear is detected, and
The air vibration that will test is converted to the second electric signal.
Further, the signal processor is also used to: first voice signal is converted to the first electric signal；
The oscillating plate is specifically used for: receiving first electric signal, and first electric signal is converted to described the
One voice signal；And in user's sounding, air vibration caused by the eardrum in user's ear is detected, and will test
Air vibration be converted to the second electric signal；
The signal processor is also used to: when existing simultaneously first electric signal and second electric signal, to described
First electric signal and second electric signal carry out separating treatment.
Further, when headset needs are connect with intercom, the selection key includes:
PTT key, the PTT key are specifically used for: it receives after pinning instruction, the second channel is connected in selection, with
The second sound signal is traveled in intercom.
Further, when headset needs are connect with intercom, the headset further include:
First terminal, Second terminal and tone frequency channel wire；
One end of the tone frequency channel wire connects one end of the first terminal, the other end connection described second of the tone frequency channel wire
Terminal；
The other end of the first terminal is used for connection signal processor, and the other end of the Second terminal is for connection pair
Say machine；
The second sound signal is by the signal processor via the first terminal, the tone frequency channel wire and described second
Terminal travels in intercom.
Further, when headset needs are connect with intercom, the headset further include:
Wireless communication module, for traveling to the second sound signal in intercom.
Further, further includes:
Control cabinet, for accommodating the signal processor；
The selection key is located on the surface of the controller.
Further, the appearance profile line of the earphone is camber line.
Further, the earphone surface is equipped with the earphone enclosure of foamed glue material.
A kind of method of air transmitted headset, comprising:
Oscillating plate is received from the first extraneous voice signal；And in user's sounding, the drum in user's ear is detected
Air vibration caused by film, and the air vibration that will test is converted to the second electric signal；
Second electric signal is converted to second sound signal by signal processor, and propagates the second sound signal.
The invention adopts the above technical scheme, and the beneficial effect that can reach includes:
It by earphone, oscillating plate and signal processor, may be implemented that there is earpiece and earphone function simultaneously, do not need to match again
Standby microphone, changes sound transmission mode, can influence to avoid caused by ambient noise, can reduce noise, and will be from
The sound wave that eardrum issues receives in ear canal, so external noise is just difficult to enter or reduces, to carry out under noisy environment
Normal talking.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of air transmitted headset of the present invention；
Fig. 2 is a kind of working method block diagram of air transmitted headset of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
The acoustical vibration that the mankind are issued mainly is issued from mouth and nose, this vibration makes head centered on vocal cords
Portion integrally generates vibration.Also, acoustical vibration is transmitted from epipharynx by syrinx, therefore external auditory canal also has a small amount of air vibration to produce
It is raw.That is the vibration signal that the air vibration generated in ear canal generates can also be converted into voice signal.
The specific air transmitted headset of one provided in the embodiment of the present application and its work side are provided with reference to the accompanying drawing
Method.
As shown in Figure 1, the air transmitted headset provided in the embodiment of the present application includes that earphone 1 and signal processor are (in figure
It is not shown)；Oscillating plate 11 is provided in the earphone 1；The oscillating plate 11 is used to receive from the first extraneous voice signal；
And in user's sounding, air vibration caused by the eardrum in user's ear is detected, and the air vibration that will test turns
It is changed to the second electric signal；The signal processor is used to second electric signal being converted to second sound signal, and propagates institute
State second sound signal.
The working principle of air transmitted headset are as follows: oscillating plate 11 is received from the first extraneous voice signal；And with
When the sounding of family, air vibration caused by the eardrum in user's ear is detected, and the air vibration that will test is converted to second
Electric signal；The signal processor is used to second electric signal being converted to second sound signal, and propagates the rising tone
Sound signal is realized while having earpiece and earphone function.
In some embodiments, referring to Fig. 1, first voice signal is propagated by first passage, the rising tone message
It number is transmitted in second channel, the headset further include:
Selection key 2 connects the first passage or the second channel for selecting；
The oscillating plate 11 is specifically used for: when the selection key 2 selects to connect the first passage, will lead to by first
The first voice signal that road is propagated is converted to air vibration, described from extraneous voice signal to receive；And in the choosing
When selecting the selection connection second channel of key 2, in user's sounding, the vibration of air caused by the eardrum in user's ear is detected
It is dynamic, and the air vibration that will test is converted to the second electric signal.
Specifically, the selection key includes: when headset needs are connect with intercom
Intercommunication (PTT, Push To Talk) key, the PTT key are specifically used for: receiving after pinning instruction, select
The second channel is connected, the second sound signal is traveled into selection key 2 i.e. intercommunication key in intercom.
Specifically, the second sound signal travels in intercom, and PTT key is not pressed when PTT presses key pressing
When, the first voice signal is converted to air vibration, described from extraneous voice signal to receive.
In some embodiments, the signal processor is also used to: first voice signal is converted to the first electric signal；
The oscillating plate 11 is specifically used for: receiving first electric signal, and first electric signal is converted to described
First voice signal；And in user's sounding, air vibration caused by the eardrum in user's ear is detected, and will test
To air vibration be converted to the second electric signal；
The signal processor is also used to: when existing simultaneously first electric signal and second electric signal, to described
First electric signal and second electric signal carry out separating treatment.
In some embodiments, the present invention can be divided into semiduplex mode and full-duplex mode.
Specifically, semiduplex mode and the related work of selection key 2, headset provided by the present application need to only be played when receiving to be listened
Cylinder effect, when sounding, can reach microphone effect.When reception, selection key 2 connects first passage, and oscillating plate 11 will lead to by first
The first voice signal that road is propagated is converted to air vibration, described from extraneous voice signal to receive；In user's sounding,
Selection key 2 connects second channel, and oscillating plate 11 detects air vibration caused by the eardrum in user's ear, and will test
Air vibration is converted to the second electric signal, and second electric signal is converted to second sound signal and propagates the by signal processor
Two voice signals.
Specifically, full-duplex mode, does not need selection key 2, signal processor is to simultaneous first electric signal and
Two electric signals carry out separating treatment, and the first electric signal is converted to air vibration by oscillating plate 11, described from extraneous to receive
Voice signal；Second electric signal is converted to second sound signal and propagates second sound signal by signal processor.It is similar
In meanss of communication such as mobile phones.
In some embodiments, when headset needs are connect with intercom, the headset further include:
First terminal 31, Second terminal 32 and tone frequency channel wire 4；
One end of the tone frequency channel wire 4 connects one end of the first terminal 31, described in the other end connection of the tone frequency channel wire
Second terminal 32；
The other end of the first terminal 31 is used for connection signal processor, and the other end of the Second terminal 32 is for connecting
Connect intercom；
The second sound signal is by the signal processor via the first terminal 31, the tone frequency channel wire 4 and described
Second terminal 32 travels in intercom.
Specifically, being attached in a wired fashion between air transmitted headset and intercom；When user answers sound, vibration
Movable plate 11 receives the first voice signal of intercom by tone frequency channel wire 4；When user makes a sound, the drum in user's ear is detected
Air vibration caused by film, and the air vibration that will test is converted to the second electric signal；The signal processor will be described
Second electric signal is converted to second sound signal, and the second sound signal being converted to is traveled to intercommunication by tone frequency channel wire 4
In machine.
In some embodiments, when headset needs are connect with intercom, the headset further include:
Wireless communication module, for traveling to the second sound signal in intercom.
Wherein, wireless communication module includes bluetooth module and 2.4G wireless module, for passing the second sound signal
It is multicast in intercom.
Specifically, wirelessly communicated to connect between air transmitted headset and intercom, when user answers sound, vibration
Movable plate 11 receives the first voice signal of intercom by bluetooth module or 2.4G wireless module；When user makes a sound, inspection
Air vibration caused by the eardrum in user's ear is surveyed, and the air vibration that will test is converted to the second electric signal；It is described
Signal processor is used to be converted to second electric signal second sound signal, and passes through bluetooth module or 2.4G wireless module
The second sound signal being converted to is traveled in intercom.
In some embodiments, headset provided by the invention, further includes:
Control cabinet 5, for accommodating the signal processor；
The selection key 2 is located on the surface of the controller 5.
Wherein, grafting between tone frequency channel wire 4 and the control cabinet 5, electrode, which is connected, after grafting realizes communication connection, wherein letter
Number processor can use dsp chip, can also using the chip occurred in the future, have calculate, the signal handling capacities such as storage.
In some embodiments, by 4 grafting of tone frequency channel wire between earphone 1 and control cabinet 5, after grafting, electrode, which is connected, realizes communication
Connection, it is easy to disassemble and install；Wherein tone frequency channel wire 4 uses spring wire.
It should be noted that air transmitted headset provided by the invention, when using wired edition headset, it is wireless to be equipped with 2.4G
Module.Wireless version headset is equipped with 2.4G wireless module and bluetooth module.
It further include power supply in some embodiments, the power supply provides electric energy to air transmitted headset.
In some embodiments, the appearance profile line of the earphone 1 is camber line, and the camber line of fitting ear chamber designs so that oscillating plate
11 can stablize and receive the vibration that eardrum issues, the received signal of clear regeneration, and extraneous noises be difficult or reduce into
In pleasant chamber, so that noise is reduced, so that soundproof effect is more preferably.
In some embodiments, the earphone surface is equipped with the earphone enclosure of foamed glue material, and the earphone enclosure can be in user
Lessen fatigue sense when wearing this headset for a long time.
Air transmitted headset provided by the present application can be applied to the high-end equipment for being equal to sound quality requirement with hearing aid earphone
In aspect.
In some embodiments, air transmitted headset provided by the present application further includes emergency call key, for occurring promptly
It is called when situation.
The working method of air transmitted headset provided by the present application
S1: oscillating plate 11 is received from the first extraneous voice signal；And in user's sounding, user's ear is detected
In eardrum caused by air vibration, and the air vibration that will test is converted to the second electric signal；
S2: second electric signal is converted to second sound signal by signal processor, and propagates the rising tone message
Number.
In conclusion the present invention provides a kind of air vibration that can be generated signal by eardrum and carry out being converted into sound
Dynamic headset, including earphone, oscillating plate and signal processor.Earphone of the invention can have earpiece and earphone function simultaneously, no
It needs to be equipped with microphone again, changes sound transmission mode, can be influenced to avoid caused by ambient noise, noise can be reduced,
And the sound wave issued from eardrum is received in ear canal, so external noise is just difficult to enter or reduces, to make an uproar
Normal talking under sound environment.
It is understood that the embodiment of the method for above-mentioned offer is corresponding with above-mentioned headset embodiment, it is corresponding specific interior
Appearance can be referred to mutually, and details are not described herein.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The headset for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of headset, the instruction headset realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of air transmitted headset characterized by comprising
Earphone and signal processor；
Oscillating plate is provided in the earphone；
The oscillating plate is used to receive from the first extraneous voice signal；And in user's sounding, detect in user's ear
Eardrum caused by air vibration, and the air vibration that will test is converted to the second electric signal；
The signal processor is used to second electric signal being converted to second sound signal, and propagates the rising tone message
Number.
2. headset according to claim 1, which is characterized in that first voice signal is propagated by first passage, institute
It states second sound signal to be transmitted in second channel, the headset further include:
Selection key connects the first passage or the second channel for selecting；
The oscillating plate is specifically used for: when the selection key selects to connect the first passage, will be propagated by first passage
The first voice signal be converted to air vibration, it is described from extraneous voice signal to receive；And it is selected in the selection key
When selecting the connection second channel, in user's sounding, air vibration caused by the eardrum in user's ear is detected, and will inspection
The air vibration measured is converted to the second electric signal.
3. headset according to claim 1, which is characterized in that
The signal processor is also used to: first voice signal is converted to the first electric signal；
The oscillating plate is specifically used for: receiving first electric signal, and first electric signal is converted to first sound
Sound signal；And in user's sounding, air vibration caused by the eardrum in user's ear, and the sky that will test are detected
Gas vibration is converted to the second electric signal；
The signal processor is also used to: when existing simultaneously first electric signal and second electric signal, to described first
Electric signal and second electric signal carry out separating treatment.
4. headset according to claim 2, which is characterized in that when headset needs are connect with intercom, the choosing
Selecting key includes:
PTT key, the PTT key are specifically used for: receiving after pinning instruction, the second channel is connected in selection, by institute
Second sound signal is stated to travel in intercom.
5. headset according to claim 2, which is characterized in that when headset needs are connect with intercom, the ear
Wheat further include:
First terminal, Second terminal and tone frequency channel wire；
One end of the tone frequency channel wire connects one end of the first terminal, and the other end of the tone frequency channel wire connects the second end
Son；
The other end of the first terminal is used for connection signal processor, and the other end of the Second terminal is for connecting intercommunication
Machine；
The second sound signal is by the signal processor via the first terminal, the tone frequency channel wire and the Second terminal
It travels in intercom.
6. headset according to claim 2, which is characterized in that when headset needs are connect with intercom, the ear
Wheat further include:
Wireless communication module, for traveling to the second sound signal in intercom.
7. headset according to claim 2, which is characterized in that further include:
Control cabinet, for accommodating the signal processor；
The selection key is located on the surface of the controller.
8. headset according to claim 1, which is characterized in that
The appearance profile line of the earphone is camber line.
9. headset according to claim 1, which is characterized in that the earphone surface is equipped with the earphone enclosure of foamed glue material.
10. a kind of working method of air transmitted headset characterized by comprising
Oscillating plate is received from the first extraneous voice signal；And in user's sounding, the eardrum institute in user's ear is detected
The air vibration of generation, and the air vibration that will test is converted to the second electric signal；
Second electric signal is converted to second sound signal by signal processor, and propagates the second sound signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058178.XA CN110072167A (en) | 2018-01-22 | 2018-01-22 | Air transmitted headset and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058178.XA CN110072167A (en) | 2018-01-22 | 2018-01-22 | Air transmitted headset and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110072167A true CN110072167A (en) | 2019-07-30 |
Family
ID=67364707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810058178.XA Pending CN110072167A (en) | 2018-01-22 | 2018-01-22 | Air transmitted headset and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110072167A (en) |
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|---|---|---|---|---|
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| CN102123188A (en) * | 2011-03-03 | 2011-07-13 | 曾超宁 | Earphone device of mobile phone |
| CN102165521A (en) * | 2008-09-30 | 2011-08-24 | 苹果公司 | Multiple microphone switching and configuration |
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| CN107078758A (en) * | 2014-10-02 | 2017-08-18 | At&T知识产权部有限合伙公司 | Fault-tolerant method and apparatus are provided for the signal of communication in power line distribution network |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0630490A (en) * | 1992-05-12 | 1994-02-04 | Katsuo Motoi | Ear set type transceiver |
| CN1347259A (en) * | 2000-09-22 | 2002-05-01 | 索尼株式会社 | Mobile phone and audio processing method |
| CN102165521A (en) * | 2008-09-30 | 2011-08-24 | 苹果公司 | Multiple microphone switching and configuration |
| CN105611439A (en) * | 2010-04-19 | 2016-05-25 | 海宝拉株式会社 | Ear microphone |
| CN102123188A (en) * | 2011-03-03 | 2011-07-13 | 曾超宁 | Earphone device of mobile phone |
| CN203574661U (en) * | 2013-11-08 | 2014-04-30 | 苏州桑泰海洋仪器研发有限责任公司 | Underwater talkback system based on optical fiber sensing technology |
| CN204180064U (en) * | 2014-09-15 | 2015-02-25 | 河南油田亚盛电器有限责任公司 | High noise environments intercom |
| CN107078758A (en) * | 2014-10-02 | 2017-08-18 | At&T知识产权部有限合伙公司 | Fault-tolerant method and apparatus are provided for the signal of communication in power line distribution network |
| CN106454567A (en) * | 2015-08-10 | 2017-02-22 | 固昌通讯股份有限公司 | Earphone microphone |
| CN105451131A (en) * | 2015-11-11 | 2016-03-30 | 深圳市中安瑞科通信有限公司 | Monophone system and control-switchable monophone method |
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Application publication date: 20190730 |
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