CN103475982A - Auditory meatus microphone and device with same - Google Patents
Auditory meatus microphone and device with same Download PDFInfo
- Publication number
- CN103475982A CN103475982A CN2013104126432A CN201310412643A CN103475982A CN 103475982 A CN103475982 A CN 103475982A CN 2013104126432 A CN2013104126432 A CN 2013104126432A CN 201310412643 A CN201310412643 A CN 201310412643A CN 103475982 A CN103475982 A CN 103475982A
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- Prior art keywords
- ear
- microphone
- pick
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- voice
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- 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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
- H04R2410/07—Mechanical or electrical reduction of wind noise generated by wind passing a microphone
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses an auditory meatus microphone and a device with the auditory meatus microphone, and relates to the voice communication technology. A voice wire section A between the auditory meatus microphone and an ear frame is a soft connection wire section. When the auditory meatus microphone is worn, environment noise can not be led into due to the fact that the auditory meatus microphone retreats from the auditory meatus by itself, special requirements for the materials and the diameter of an isolation noise reduction sleeve do not exist, noise can not be generated when the head of a wearer rotates or other parts of the body vibrate, words of voice signals collected by the auditory meatus microphone are clear and accurate, and the auditory meatus microphone and the device with the auditory meatus microphone are particularly suitable for intelligent voice control, synchronous translation of a translation cloud system and voice communication in the strong noise environment.
Description
Technical field
The present invention relates to a kind of duct microphone and operative installations thereof.
Background technology
Although the angle from software engineering, although Voice search engine has had powerful keyword search or resolution capability, even can identify multiple slang, dialect, but owing to there is no to pick noiseless microphone upstream key equipment, to such an extent as to the speech-sound intelligent technology can only rest on wrong toy or the game epoch that rebegin for many years, can only rest on conceptively, can't advance practical application.
Microphone is as a kind of transducer of realizing sound wave is changed into the signal of telecommunication, and its technology is quite ripe, the brilliant formula of the common electret capacitor type of version, moving-coil type and carbon etc.The remarkable shortcoming of prior art microphone is first to pick the voice signal that includes environmental noise, and then noise signal is carried out to noise abatement or noise reduction process.Its noise abatement or noise-reduction method are: multi-angle is arranged a plurality of pick-ups, directly to offset or to be overcome environmental noise by software engineering.
The microphone of prior art carries out the remedial measure of noise reduction or noise abatement to the noise of first picking, the effect of its noise abatement or noise reduction, only can be satisfied with in more quiet environment, the demand of the brain judgement voice call content of employment, can not meet search and the judgement to keyword of computer or other smart machine Voice search engine fully, and the demand of the voice call in strong background noise.That is to say, noise abatement or noise reduction microphone by prior art, if the user be in as travel in the locomotive driving cabin in, the road of locomotive driving is arranged, someone speaks, has the environment that the Workplace etc. of noise is made a lot of noise by the side of, the voice signal that its microphone is picked, just can not be as the signal source of computer or other smart machine Voice search engine, otherwise computer or other smart machine can be done the judgement made mistake and maybe can not identify keyword; Also can not realize interpersonal speech communication in naval vessel, submarine, tank, panzer and in other noisy environment.
For fear of gathering environmental noise, occurred that already ear pastes the bone-conduction microphone that skin is used outward.Although bone-conduction microphone does not gather environmental noise, speaker's voice ambiguous of its collection, control to such an extent as to can not be applied to intelligent sound fully.
Notification number is CN2744099's " can insert human ear's microphone apparatus " microphone of disclosing, wear end user's head without rotate or the prerequisite of other position friction of health, twisting under, pick-up does not only gather environmental noise in theory, the speaker's voice signal only gathered, should meet the demand that intelligent sound is controlled, but still there is following unsurmountable shortcoming in this patent, and these shortcomings make it not have practical value fully:
One, its accompanying drawing is expressed is designed to full-closed structure, in the industry manufacture, can not realize.Improve the possibility that this structure makes it to have realization, it must be split as at least three elements: collection sound path, pick-up, housing, the three is indispensable.Structure after fractionation is complicated, have redundant component.
Its two, the diameter of the external end head of microphone is much larger than barrel diameter, the sound wave of the environmental noise that ear is outer will cause certain impulsive force to external end head, thereby introduce environmental noise.
Its three, this duct microphone apparatus, in use necessarily require to wear end user's head without rotating or other position friction of health, twisting static, but these conditions are non-existent in practicality.Because wearing head rotation or other position twisting of health of end user is objective reality, the shake of long voice wire or gas-guide pipeline, vibration are enough to cause pick-up to introduce dither noise.
In other words, the microphone that " can insert human ear's microphone apparatus " of notification number CN2744099 disclosed can not be obtained noiseless voice signal in duct, does not reach purpose of design.
Ben, the reason that the above-mentioned duct microphone that affects prior art practices effect is recessive, to such an extent as to still lose so far practical duct microphone.Before the present invention, people do not recognize the true cause of duct microphone generating noise or find its not enough method that overcomes, prior art developer is mainly for the ear canal diameter size of different people, the isolation noise reduction cover of design different-diameter, and attempt by screening the complicated means such as isolation noise reduction cover material of different pliabilitys, to obtaining the best structural design of wearing effect, thereby reach the purpose that obtains best sound effect.However, the duct microphone of prior art still can not be adapted to the broad-spectrum demand of the individual difference of numerous end users' of wearing various ears and duct structure, make the duct microphone of prior art be difficult to really overcome environmental noise, thereby meeting intelligent sound, acquisition controls the needed pure voice signal of the cloud translation on line system of translating especially combined with the Internet.
Summary of the invention
First purpose of the present invention just is to provide a kind of ambient noise that do not gather, only gather the speaker because of vocal cord vibration the eardrum caused by osteoacusis or and duct vibrate to reduce the duct microphone of voice signal, provide can meet computer or other smart machine for Voice search engine the voice signal to the requirement of the requirement of keyword degree of purity and strong noisy environment person to person speech communication clearly.
Second purpose of the present invention just is to provide a kind of simple in structure, wear use the MEC microphone can not exit voluntarily duct, to isolation noise reduction cover material and diameter all without specific (special) requirements, wear end user's head rotation or the vibration of health other parts can not cause introducing noise yet, can provide meet fully computer or other smart machine for Voice search engine to the requirement of keyword degree of purity, and the duct microphone operative installations of the voice signal that in strong noisy environment, person to person's speech communication requires.
First purpose of the present invention is to realize by such technical scheme, a kind of duct microphone, comprise cylindrical shell, pick-up and voice wire A section, described cylindrical shell is the straight tube structure, and its two ends are respectively ear-drum end and external ear end, be provided with pickup chamber and through wires hole in described cylindrical shell, described pickup chamber is positioned at the ear-drum end, and described through wires hole runs through cylindrical shell, and described pick-up is positioned at this pickup chamber, one end of described voice wire A section is connected with pick-up, and the other end is drawn voice signal through through wires hole.
For ambient noise signal and ear-drum are isolated fully, while the user being spoken simultaneously, because of the eardrum of osteoacusis drive or with duct, vibration passes to the pick-up in cylindrical shell to vocal cord vibration, be provided with isolation noise reduction cover on the outer wall of described cylindrical shell, described isolation noise reduction cover is positioned at the ear-drum end of cylindrical shell.
In the present invention, pick-up is the oscillatory type piezoelectric ceramic transducer, and described oscillatory type piezoelectric ceramic transducer comprises external end head and transducing oscillator, and described external end head is arranged on the external ear end, the inwall of described cylindrical shell and the left side of external end head form the pickup chamber, and described through wires hole is positioned at external end head; Described transducing oscillator comprises conductive substrate, be respectively arranged with oscillator and the piezoceramics layer that is attached to the conductive substrate surface at the conductive substrate two ends, be coated with conductive layer on described piezoceramics layer surface, described on conductive substrate and the end with piezoceramics layer with external end head, be connected, and this end and voice wire A section one section is connected.
In the present invention, described pick-up can be Electret Condenser Transducer, and the foil electret of described pick-up is facing to the ear-drum end; Can be the moving-coil type transducer, described pick-up be subject to sound facing to the ear-drum end; Can be for being the brilliant formula microphone of carbon, described pick-up be subject to sound facing to the ear-drum end, certainly, can also the moving-iron type microphone, described pick-up be subject to sound facing to the ear-drum end.
Second purpose of the present invention is to realize by such technical scheme, a kind of duct microphone operative installations, described device comprises the ear frame, described ear frame comprises tack end and basal part of the ear end, the other end of described voice wire A section is connected with tack end or basal part of the ear end, described voice wire A section is the line segment that is flexible coupling, and in described ear frame, is equipped with wireless speech module and battery; The voice wire A section of described duct microphone pierces into the ear frame from the tack end of ear frame or basal part of the ear end and is connected with the wireless speech module.
Second purpose of the present invention can also realize by such technical scheme, a kind of duct microphone operative installations, described device comprises ear frame and voice wire B section, described ear frame comprises tack end and basal part of the ear end, described voice wire A section is the line segment that is flexible coupling, the voice wire A section of described duct microphone is connected with an end of the voice wire B section that is arranged on basal part of the ear end through the ear frame from tack end or the basal part of the ear end of ear frame, and the other end of described voice wire B is connected with speech ciphering equipment.
The present invention is by the line segment that is flexible coupling between duct microphone and ear frame, and the tack end of having eliminated the ear frame is the power of playing outside ear to the duct microphone, to prevent that the duct microphone from exiting in the process of wearing or part exits the introducing environmental noise; By being fixed on the ear frame on ear, stop other position twisting of long voice wire Yin Peidai end user's head rotation or health, cause the shake of duct microphone and the noise of generation.
Further describe, the tack end of described ear frame or and basal part of the ear end be bone conduction earphone.
For the ease of answering, at the tack end of described ear frame, be provided with the voice wire C section with earphone.The invention has the advantages that
Numerous end users that wears is had to the broad-spectrum applicability, can not exit duct voluntarily in wearing and introduce environmental noise, to isolating noise reduction cover material and diameter all without specific (special) requirements, wear the vibration of end user's head rotation or health other parts and also can not cause noise, the voice signal word that the duct microphone gathers is clear accurately, without the environment noise, be particularly useful for the synchronous translation that cloud system was controlled and translated to intelligent sound.
The accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
The first structural representation that Fig. 1 is duct microphone of the present invention;
The second structural representation that Fig. 2 is duct microphone of the present invention;
The first that Fig. 3 is duct microphone operative installations of the present invention is used state reference map;
The second that Fig. 4 is duct microphone operative installations of the present invention is used state reference map;
The third use state reference map that Fig. 5 is duct microphone operative installations of the present invention;
Fig. 6 is that the 4th kind of duct microphone operative installations of the present invention used state reference map;
Fig. 7 is that the 5th kind of duct microphone operative installations of the present invention used state reference map;
Fig. 8 is that the 6th kind of duct microphone operative installations of the present invention used state reference map;
Fig. 9 is that the 7th kind of duct microphone operative installations of the present invention used state reference map;
Figure 10 is that the 8th kind of duct microphone operative installations of the present invention used state reference map.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but the present invention is not limited to these execution modes, any improvement on the present embodiment essence spirit or substitute, still belong to the claims in the present invention scope required for protection.
Embodiment 1: as shown in Figure 1, a kind of duct microphone, comprise cylindrical shell 1, pick-up 2 and voice wire A section 3, described cylindrical shell 1 is the straight tube structure, and its two ends are respectively ear-drum end 4 and external ear end 5, be provided with pickup chamber 6 and through wires hole 7 in described cylindrical shell 1, described pickup chamber 6 is positioned at ear-drum end 4, and described through wires hole 7 runs through cylindrical shell 1, and described pick-up 2 is positioned at this pickup chamber 6, one end of described voice wire A section 3 is connected with pick-up 2, and the other end is drawn voice signal through through wires hole 7.
Embodiment 2: as shown in Figure 2, pick-up 2 is the oscillatory type piezoelectric ceramic transducer, described oscillatory type piezoelectric ceramic transducer comprises external end head 8 and transducing oscillator, described external end head 8 is arranged on external ear end 5, the left side of the inwall of described cylindrical shell 1 and external end head 8 forms pickup chamber 6, and described through wires hole 7 is positioned at external end head 8; Described transducing oscillator comprises conductive substrate 9, be respectively arranged with oscillator 11 and the piezoceramics layer 12 that is attached to conductive substrate 9 surfaces at conductive substrate 10 two ends, be coated with conductive layer on described piezoceramics layer 12 surfaces, described on conductive substrate 9 and the end with piezoceramics layer 12 with external end head 8, be connected, and this end and voice wire A section 3 one section is connected.
Further, be provided with isolation noise reduction cover 13 on the outer wall of described cylindrical shell 1, described isolation noise reduction cover 13 is positioned at the ear-drum end 4 of cylindrical shell 1.
Wherein, in the present invention, described pick-up 2 is Electret Condenser Transducer, and the foil electret of described pick-up 2 is facing to ear-drum end 4.
Further, described pick-up 2 is the moving-coil type transducer, described pick-up 2 be subject to sound facing to ear-drum end 4.
Further, described pick-up 2 is the brilliant formula microphone of carbon, described pick-up 2 be subject to sound facing to ear-drum end 4.
Further, pick-up 2 is moving-iron type microphones, described pick-up 2 be subject to sound facing to ear-drum end 4.
As shown in Fig. 3 to 10, the tack end 15 of described ear frame 14 or and basal part of the ear end 16 be bone conduction earphone.
Claims (10)
1. a duct microphone, comprise cylindrical shell (1), pick-up (2) and voice wire A section (3), it is characterized in that: described cylindrical shell (1) is the straight tube structure, its two ends are respectively ear-drum end (4) and external ear end (5), be provided with pickup chamber (6) and through wires hole (7) in described cylindrical shell (1), described pickup chamber (6) is positioned at ear-drum end (4), described through wires hole (7) runs through cylindrical shell (1), described pick-up (2) is positioned at this pickup chamber (6), one end of described voice wire A section (3) is connected with pick-up (2), the other end is drawn voice signal through through wires hole (7).
2. duct microphone as claimed in claim 1 is characterized in that: be provided with isolation noise reduction cover (13) on the outer wall of described cylindrical shell (1), described isolation noise reduction cover (13) is positioned at the ear-drum end (4) of cylindrical shell (1).
3. duct microphone as claimed in claim 2, it is characterized in that: pick-up (2) is the oscillatory type piezoelectric ceramic transducer, described oscillatory type piezoelectric ceramic transducer comprises external end head (8) and transducing oscillator, described external end head (8) is arranged on external ear end (5), the left side of the inwall of described cylindrical shell (1) and external end head (8) forms pickup chamber (6), and described through wires hole (7) is positioned at external end head (8); Described transducing oscillator comprises conductive substrate (9), be respectively arranged with oscillator (11) at conductive substrate (10) two ends and be attached to the surperficial piezoceramics layer (12) of conductive substrate (9), be coated with conductive layer on described piezoceramics layer (12) surface, a described and end that have piezoceramics layer (12) upper at conductive substrate (9) is connected with external end head (8), and this end and voice wire A section (3) one section is connected.
4. duct microphone as claimed in claim 2 is characterized in that: described pick-up (2) is Electret Condenser Transducer, and the foil electret of described pick-up (2) is facing to ear-drum end (4).
5. duct microphone as claimed in claim 2, it is characterized in that: described pick-up (2) is the moving-coil type transducer, described pick-up (2) be subject to sound facing to ear-drum end (4).
6. duct microphone as claimed in claim 2 is characterized in that: described pick-up (2) is the brilliant formula microphone of carbon, described pick-up (2) be subject to sound facing to ear-drum end (4).
7. duct microphone as claimed in claim 2, it is characterized in that: pick-up (2) is the moving-iron type microphone, described pick-up (2) be subject to sound facing to ear-drum end (4).
8. one kind has the described duct microphone of the arbitrary claim of claim 1 to 7 operative installations, it is characterized in that: described device comprises ear frame (14), described ear frame (14) comprises tack end (15) and basal part of the ear end (16), the other end of described voice wire A section (3) is connected with tack end (15) or basal part of the ear end (16), described voice wire A section (3) is the line segment that is flexible coupling, and in described ear frame (14), is equipped with wireless speech module and battery; The voice wire A section (3) of described duct microphone pierces into ear frame (14) from the tack end (15) of ear frame (14) or basal part of the ear end (16) and is connected with the wireless speech module.
9. one kind has the described duct microphone of the arbitrary claim of claim 1 to 7 operative installations, it is characterized in that: described device comprises ear frame (14) and voice wire B section (17), described ear frame (14) comprises tack end (15) and basal part of the ear end (16), described voice wire A section (3) is the line segment that is flexible coupling, the voice wire A section (3) of described duct microphone is connected with an end of the voice wire B section (17) that is arranged on basal part of the ear end (16) through ear frame (14) from tack end (15) or the basal part of the ear end (16) of ear frame (14), the other end of described voice wire B (17) is connected with speech ciphering equipment.
10. duct microphone operative installations as claimed in claim 8 or 9 is characterized in that: the tack end (15) of described ear frame (14) or and basal part of the ear end (16) be bone conduction earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104126432A CN103475982A (en) | 2013-05-15 | 2013-08-26 | Auditory meatus microphone and device with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310192371.X | 2013-05-15 | ||
| CN201310192371 | 2013-05-15 | ||
| CN2013104126432A CN103475982A (en) | 2013-05-15 | 2013-08-26 | Auditory meatus microphone and device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103475982A true CN103475982A (en) | 2013-12-25 |
Family
ID=49281996
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102720587A Withdrawn CN103347225A (en) | 2013-05-15 | 2013-06-26 | Ear canal microphone |
| CN201320564603.5U Expired - Fee Related CN203399256U (en) | 2013-05-15 | 2013-08-26 | Ear microphone and use device thereof |
| CN2013104126432A Pending CN103475982A (en) | 2013-05-15 | 2013-08-26 | Auditory meatus microphone and device with same |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102720587A Withdrawn CN103347225A (en) | 2013-05-15 | 2013-06-26 | Ear canal microphone |
| CN201320564603.5U Expired - Fee Related CN203399256U (en) | 2013-05-15 | 2013-08-26 | Ear microphone and use device thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN103347225A (en) |
| WO (1) | WO2014183353A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014183353A1 (en) * | 2013-05-15 | 2014-11-20 | 重庆帅能科技有限公司 | Auditory canal microphone and used apparatus thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206265A (en) * | 2015-09-15 | 2015-12-30 | 北京云知声信息技术有限公司 | Audio collection device |
| CN107333218A (en) * | 2017-07-05 | 2017-11-07 | 杭州双弯月电子科技有限公司 | A kind of ceramic osteoacusis Bluetooth microphone |
| CN108786028B (en) * | 2018-06-20 | 2020-05-19 | 昆山快乐岛运动电子科技有限公司 | Multifunctional swimming cap based on bone conduction |
| CN109348340B (en) * | 2018-11-14 | 2024-06-04 | 中山阿迪通电子科技有限公司 | Earphone front cover device with noise reduction microphone conversation function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063320U (en) * | 1989-12-09 | 1990-10-03 | 王秉玉 | Micro electronic instrument hung at root of auricle |
| CN2098134U (en) * | 1991-05-23 | 1992-03-04 | 丁美林 | Ear inner tunica microphone |
| US5692059A (en) * | 1995-02-24 | 1997-11-25 | Kruger; Frederick M. | Two active element in-the-ear microphone system |
| CN1193236A (en) * | 1998-03-10 | 1998-09-16 | 陈皞 | Integrated duct-type telephone transmitter and receiver with vibration acoustical pick-up device |
| KR20010094811A (en) * | 2000-04-07 | 2001-11-03 | 박용 | Insert microphone/circumaural type microphone |
| CN102177730A (en) * | 2008-10-09 | 2011-09-07 | 峰力公司 | System for picking-up a user's voice |
| CN203399256U (en) * | 2013-05-15 | 2014-01-15 | 重庆帅能科技有限公司 | Ear microphone and use device thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435886Y (en) * | 2000-07-17 | 2001-06-20 | 许宝霞 | Ear drum vibrating hold-free receiver for mobile telephone |
| EP1434464B1 (en) * | 2002-12-23 | 2008-04-30 | Sonion Roskilde A/S | Encapsulated receiver comprising an expansible means such as a balloon |
| CN2744099Y (en) * | 2004-09-17 | 2005-11-30 | 魏国扬 | Microphone device capable of being placed in human ear |
| US7477756B2 (en) * | 2006-03-02 | 2009-01-13 | Knowles Electronics, Llc | Isolating deep canal fitting earphone |
-
2013
- 2013-06-26 CN CN2013102720587A patent/CN103347225A/en not_active Withdrawn
- 2013-08-26 WO PCT/CN2013/082237 patent/WO2014183353A1/en active Application Filing
- 2013-08-26 CN CN201320564603.5U patent/CN203399256U/en not_active Expired - Fee Related
- 2013-08-26 CN CN2013104126432A patent/CN103475982A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063320U (en) * | 1989-12-09 | 1990-10-03 | 王秉玉 | Micro electronic instrument hung at root of auricle |
| CN2098134U (en) * | 1991-05-23 | 1992-03-04 | 丁美林 | Ear inner tunica microphone |
| US5692059A (en) * | 1995-02-24 | 1997-11-25 | Kruger; Frederick M. | Two active element in-the-ear microphone system |
| CN1193236A (en) * | 1998-03-10 | 1998-09-16 | 陈皞 | Integrated duct-type telephone transmitter and receiver with vibration acoustical pick-up device |
| KR20010094811A (en) * | 2000-04-07 | 2001-11-03 | 박용 | Insert microphone/circumaural type microphone |
| CN102177730A (en) * | 2008-10-09 | 2011-09-07 | 峰力公司 | System for picking-up a user's voice |
| CN203399256U (en) * | 2013-05-15 | 2014-01-15 | 重庆帅能科技有限公司 | Ear microphone and use device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014183353A1 (en) * | 2013-05-15 | 2014-11-20 | 重庆帅能科技有限公司 | Auditory canal microphone and used apparatus thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014183353A1 (en) | 2014-11-20 |
| CN103347225A (en) | 2013-10-09 |
| CN203399256U (en) | 2014-01-15 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20131225 |