CN107426643B - Uplink noise cancelling headphone - Google Patents
Uplink noise cancelling headphone Download PDFInfo
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- CN107426643B CN107426643B CN201710642777.1A CN201710642777A CN107426643B CN 107426643 B CN107426643 B CN 107426643B CN 201710642777 A CN201710642777 A CN 201710642777A CN 107426643 B CN107426643 B CN 107426643B
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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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- Acoustics & Sound (AREA)
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Headphones And Earphones (AREA)
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Abstract
The present invention provides a kind of uplink noise cancelling headphones, including earphone line control, left earphone case and right earphone shell；Call microphone and noise reduction module are provided in earphone line control；The first and second microphones are provided in left earphone case, the distance of the first microphone to call microphone is greater than second microphone to the distance of call microphone；The third and fourth microphone is provided in right earphone shell, the distance of third microphone to call microphone is greater than the distance of the 4th microphone call microphone；Also, third microphone and the first microphone are symmetrical, and the 4th microphone and second microphone are symmetrical；Noise reduction module is used to that call microphone, the first, second, third and fourth microphone to be picked up the noise signal in voice signal and be eliminated.Uplink noise reduction process can be carried out to neck wire type earphone through the invention, to improve the quality of voice communication.
Description
Technical Field
The invention relates to the technical field of acoustics, in particular to an uplink noise reduction earphone.
Background
With the wide application of portable electronic products such as high-quality smart phones and pads, people have higher and higher requirements on acoustic parameters of earphones which can be used in cooperation with the portable electronic products. The existing earphone is generally provided with an uplink noise reduction function, when a call is made in a noisy environment, the earphone with the uplink noise reduction function receives a voice signal of a speaker and a noise signal of the surrounding environment through a microphone, then the received voice signal and the received noise signal are transmitted to a noise reduction chip, and a clear voice signal can still be heard by an opposite party through a noise reduction algorithm.
At present, a single microphone or a double microphone is mainly adopted to realize the uplink noise reduction function of the earphone. When the double microphones are adopted for noise reduction of the earphone in an uplink manner, the microphone close to the mouth of a speaker is a main microphone which mainly picks up the voice of the speaker, and the microphone close to the ear of the speaker is an auxiliary microphone which is mainly used for picking up noise and voice signals. The time of arrival of the speech signal at the primary and secondary microphones varies with distance. Then the noise can be suppressed based on the time difference. Therefore, two key parameters are directly related to the noise reduction performance of the microphone array, one is the distance between two microphones (namely, a main microphone and an auxiliary microphone), and the other is the included angle between a microphone array connecting line and a source of a voice signal to be enhanced; if the distance between the two microphones is large and the included angle is small, the uplink noise reduction performance of the earphone is good, otherwise, the noise reduction effect is poor. Generally, the distance between two microphones cannot be less than 20 mm.
However, due to wearing and product design, the current earphones are difficult to make a major breakthrough in uplink noise reduction performance, mainly because: 1. when the microphone is placed at the earphone shell part, the distance from the earphone shell part to the mouth is far, and the conventional distance from the external auditory meatus to the center of the lips is 130mm, which is also the distance from the center of a double-ear real wireless earphone microphone or a microphone array to the center of the lips; 2. the microphone or the center of the microphone array almost faces away from the center of the lip to pick up sound, and due to the requirement of wearing stability, the angle between the center line of the microphone array and the connecting line of the microphone array to the center of the lip is usually larger, usually more than 30 degrees, which results in a low speech-to-noise ratio at the position of the microphone array and also results in a large attenuation of high-frequency speech signals; 3. if the headset is placed in the line box, the line control must meet the requirement that the minimum distance between the two microphones (i.e. the main and auxiliary microphones) is 20mm, which is obviously difficult to do.
Therefore, for a neck-line earphone, two problems exist when the existing earphone adopts two microphones to perform uplink noise reduction, firstly, if the microphones are placed in an earphone shell, the distance between the two microphones is difficult to meet the requirement of the minimum distance of 20mm, and meanwhile, the main microphone is far away from a mouth, so that the communication quality is poor; another is that if the microphone is placed in-line, the angle of the microphone to the mouth is difficult to reach a straight line, resulting in poor noise reduction quality. At present, a single microphone is adopted for noise reduction, the noise reduction amount of white noise can only be about 14dB, and the speech definition or intelligibility is poor.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an uplink noise reduction headphone to solve the problem of poor uplink noise reduction performance of the existing uplink noise reduction headphones.
The invention provides an uplink noise reduction earphone which comprises an earphone line control arranged on an earphone line, a left earphone shell and a right earphone shell, wherein the left earphone shell and the right earphone shell are respectively connected to two ends of the earphone line; wherein, a communication microphone and a noise reduction module are arranged in the earphone line control; a first microphone and a second microphone are arranged in the left earphone shell, and the distance from the first microphone to the call microphone is larger than the distance from the second microphone to the call microphone; a third microphone and a fourth microphone are arranged in the right earphone shell, and the distance from the third microphone to the communication microphone is greater than that of the fourth microphone; the position of the third microphone in the right earphone shell is symmetrical to the position of the first microphone in the left earphone shell, and the position of the fourth microphone in the right earphone shell is symmetrical to the position of the second microphone in the left earphone shell; the noise reduction module is used for eliminating noise signals in the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
Further, a preferable structure is: the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; the noise reduction module eliminates noise signals in the voice signals according to time difference of the voice signals reaching the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
Further, a preferable structure is: the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; the noise reduction module is used for eliminating noise signals in the voice signals according to energy value differences of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
Further, a preferable structure is: the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; the noise reduction module is used for eliminating noise signals in the voice signals according to sensitivity differences of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
Further, a preferable structure is: the noise reduction module comprises a first noise reduction module and a second noise reduction module; the first noise reduction module is used for eliminating noise signals in voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone when the call microphone is positioned at the front end of the neck; the second noise reduction module is used for eliminating noise signals in voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone when the call microphone is positioned at the back end of the neck.
Further, a preferable structure is: and a change-over switch is arranged on the wire control shell, and the first noise reduction module and the second noise reduction module are switched through the change-over switch.
Further, a preferable structure is: the left earphone shell comprises a left earphone main shell body, a left earphone front shell body and a left earphone conducting wire part connected with the left earphone main shell body, and the left earphone conducting wire part and the left earphone front shell body are respectively positioned at two end parts of the left earphone main shell body; the first microphone is arranged in the left ear main shell body and close to the left ear front shell body, and the second microphone is arranged in the left ear main shell body and close to the left ear wire part.
Further, a preferable structure is: the right earphone shell comprises a right earphone main shell body, a right earphone front shell body and a right earphone wire part connected with the right earphone main shell body, and the right earphone wire part and the right earphone front shell body are respectively positioned at two end parts of the right earphone main shell body; the third microphone is arranged in the right ear main shell body and close to the right ear front shell body, and the fourth microphone is arranged in the right ear main shell body and close to the right ear wire part.
Further, a preferable structure is: the conversation microphone is an ANC microphone, a capacitance microphone or an electrodynamic microphone; the first microphone, the second microphone, the third microphone, and the fourth microphone are ANC microphones.
By using the uplink noise reduction earphone according to the present invention, the talking microphone and the noise reduction module are arranged in the earphone line control, and two microphones are respectively arranged in the left earphone shell and the right earphone shell, that is: the first microphone and the second microphone are arranged in the left earphone shell, the third microphone and the fourth microphone are arranged in the right earphone shell, meanwhile, the distance between the first microphone and the second microphone is as large as possible, the distance between the third microphone and the fourth microphone is also as large as possible, the first microphone and the third microphone are symmetrically arranged, and the second microphone and the fourth microphone are symmetrically arranged. The invention can carry out uplink noise reduction processing on the neck line type earphone to the maximum extent, thereby improving the quality of voice communication.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic structural diagram of an uplink noise reduction headphone according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a neck front end wearing manner of an uplink noise reduction earphone according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wearing manner of the back end of the neck of the uplink noise reduction earphone according to the embodiment of the present invention.
The same reference numbers in all figures indicate similar or corresponding features or functions.
In the figure: the earphone line 1, the earphone line control 2, the call microphone 21, the noise reduction module 22, the line control shell 23, the left earphone shell 3, the first microphone 31, the second microphone 32, the left ear main shell 33, the left ear front shell 34, the left ear wire part 35, the left ear speaker 36, the left ear canal tube 37, the right earphone shell 4, the third microphone 41, the fourth microphone 42, the right ear main shell 43, the right ear front shell 44, the right ear wire part 45, the right ear speaker 46 and the right ear canal tube 47.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Aiming at the problem that the existing uplink noise reduction earphone has poor uplink noise reduction performance, the invention arranges a call microphone and a noise reduction module in an earphone drive-by-wire, and two microphones are respectively arranged in a left earphone shell and a right earphone shell, namely: the first microphone and the second microphone are arranged in the left earphone shell, the third microphone and the fourth microphone are arranged in the right earphone shell, meanwhile, the distance between the first microphone and the second microphone is as large as possible, the distance between the third microphone and the fourth microphone is also as large as possible, the first microphone and the third microphone are symmetrically arranged, and the second microphone and the fourth microphone are symmetrically arranged. The invention can carry out uplink noise reduction processing on the neck line type earphone to the maximum extent, thereby improving the quality of voice communication.
To illustrate the uplink noise reduction earphone provided by the present invention, fig. 1 shows a structure of the uplink noise reduction earphone according to an embodiment of the present invention, and fig. 2 shows a structure of a neck front end wearing manner of the uplink noise reduction earphone according to an embodiment of the present invention; fig. 3 shows a neck-back wearing manner structure of the uplink noise reduction headphone according to an embodiment of the present invention.
As shown in fig. 1 to fig. 3, the uplink noise reduction earphone provided by the present invention includes an earphone line control 2 disposed on an earphone line 1, and a left earphone housing 3 and a right earphone housing 4 respectively connected to two ends of the earphone line 1; wherein, a conversation microphone 21 and a noise reduction module 22 are arranged in the earphone line control; a first microphone 31 and a second microphone 32 are arranged in the left earphone shell 3, and the distance from the first microphone 31 to the call microphone 21 is greater than the distance from the second microphone 32 to the call microphone 21; a third microphone 41 and a fourth microphone 42 are arranged in the right earphone housing 4, and the distance from the third microphone 41 to the call microphone 21 is greater than the distance from the fourth microphone 42 to the call microphone 21; the position of the third microphone 41 in the right headphone housing 4 is symmetrical to the position of the first microphone 31 in the left headphone housing 3, and the position of the fourth microphone 42 in the right headphone housing 4 is symmetrical to the position of the second microphone 32 in the left headphone housing 3; the noise reduction module 22 is configured to eliminate noise signals in the voice signals picked up by the call microphone 21, the first microphone 31, the second microphone 32, the third microphone 41, and the fourth microphone 42.
The earphone drive-by-wire 2 comprises a drive-by-wire shell 23, and a call microphone 21 and a noise reduction module 22 are both arranged in the drive-by-wire shell 23; the noise reduction module 22 eliminates the noise signal in the voice signal according to the time difference of the voice signal reaching the call microphone 21, the first microphone 31, the second microphone 32, the third microphone 41 and the fourth microphone 42.
Specifically, in the present invention, the communication microphone is disposed on the drive-by-wire, which is closest to the mouth of the human body, and the sound emitted from the mouth reaches the communication microphone first, that is, the communication microphone picks up the voice signal first, and since the distance from the first microphone to the communication microphone is greater than the distance from the second microphone to the communication microphone, the sound emitted from the mouth necessarily reaches the first microphone last, and similarly, the voice signal picked up by the third microphone is necessarily later than the voice signal picked up by the fourth microphone with respect to the fourth microphone. Therefore, according to the time difference of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone, the noise signal in the voice signal can be eliminated.
In addition, noise signals in the voice signals can be eliminated according to energy value differences or sensitivity differences of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
In addition, in order to better eliminate the picked-up voice signals, in the invention, the distance between the first microphone and the second microphone and the distance between the third microphone and the fourth microphone are set to be as large as possible, so that the noise reduction precision of the noise reduction module is ensured.
In an embodiment of the present invention, the left earphone housing 3 includes a left ear main housing 33, a left ear front housing 34, and a left ear wire part 35 connected to the left ear main housing 33, and the left ear wire part 35 and the left ear front housing 34 are respectively located at two ends of the left ear main housing 33; the first microphone 31 is disposed in the left ear main casing 33 at a position close to the left ear front casing 34, and the second microphone 32 is disposed in the left ear main casing 33 at a position close to the left ear wire part 35. The right earphone housing 4 comprises a right earphone main housing 43, a right earphone front housing 44 and a right earphone wire part 45 connected with the right earphone main housing 43, wherein the right earphone wire part 45 and the right earphone front housing 44 are respectively positioned at two end parts of the right earphone main housing 43; among them, the third microphone 41 is provided in the right ear main casing 43 at a position close to the right ear front casing 44, and the fourth microphone 42 is provided in the right ear main casing 43 at a position close to the right ear wire part 45. The distance between the first microphone and the second microphone, and the distance between the third microphone and the fourth microphone can be kept as large as possible by the above arrangement.
Because the existing neck line type earphone generally has two wearing modes, one mode is to wear the neck front end, and the communication microphone is positioned at the neck front end of a human body; the other type is worn at the back end of the neck, and the communication microphone is positioned at the back end of the neck of the human body. In the invention, the noise reduction mode of the noise reduction module is different for two different wearing modes of the neck earphone.
In another embodiment of the present invention, the noise reduction module includes a first noise reduction module and a second noise reduction module; the first noise reduction module is used for eliminating noise signals in voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone when the call microphone is positioned at the front end of the neck; the second noise reduction module is used for eliminating noise signals in voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone when the call microphone is positioned at the back end of the neck.
Specifically, when the wearing mode is the neck front end, because the communication microphone is located at the neck front end, at this time, angles formed by the communication microphone, the first microphone, the second microphone, the third microphone and the fourth microphone are different, distances from the mouth to the five microphones are also different, when the mouth sounds, time for a voice signal to reach the five microphones is also different, the time difference is generally called as time delay, and a noise reduction algorithm is written in the first noise reduction module according to the time delay from the voice signal to each microphone, so that the purpose of uplink noise reduction can be achieved to the maximum extent.
When the wearing mode is the back end of the neck, the communication microphone is positioned at the back end of the neck, at the moment, the distance from the communication microphone to the mouth when the communication microphone is positioned at the back end of the neck is different from the distance from the communication microphone to the mouth when the communication microphone is positioned at the front end of the neck, the time delay of the voice signals is different, at the moment, the noise reduction algorithm arranged in the first noise reduction microphone is obviously not suitable for noise reduction of the wearing mode of the back end of the neck, and therefore, through arranging the second noise reduction module, the purpose of uplink noise reduction can be achieved to the maximum extent through arranging the algorithm suitable for the wearing mode of the back end of the neck in the second noise reduction module.
The noise reduction principle of the noise reduction module is simply explained only by using the time difference of the voice signals reaching the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone, and the noise reduction principle is similar to the noise reduction principle of the time difference according to the energy value difference and the sensitivity difference of the voice signals, and is not repeated here.
Furthermore, a change-over switch is further arranged on the line control shell, the change-over switch can be a line control switch or a trigger switch, and the first noise reduction module and the second noise reduction module are switched through the change-over switch, so that a user can conveniently perform adaptive selection on the noise reduction modules. Namely: when the neck front-end wearing mode is adopted, the uplink noise reduction is carried out by adopting the first noise reduction module; when the neck back end wearing mode is adopted, the uplink noise reduction is carried out by adopting the second noise reduction module.
Further, in the up-link noise reduction headphone provided by the present invention, a left ear horn 36 is provided in the left ear front housing 34, and a left ear duct 37 is attached to an end portion of the left ear front housing 34; a right ear horn 46 is provided in the right ear front housing 44, and a right ear tube 47 is attached to an end of the right ear front housing. The left ear canal 37 and the right ear canal 47 are inserted into the left ear and the right ear of the human body, respectively, so that the sound emitted by the left ear speaker 36 and the right ear speaker 46 enters the left ear and the right ear of the human body through the left ear canal and the right ear canal, respectively.
In addition, in the present invention, the communication microphone is an ANC (Active Noise Control) microphone, a condenser microphone, or an electrodynamic microphone; the first microphone, the second microphone, the third microphone and the fourth microphone are ANC microphones.
Through the above, the uplink noise reduction earphone provided by the invention can carry out uplink noise reduction processing on the neck line type earphone to the maximum extent, thereby improving the quality of voice communication; and set up different algorithms of making an uproar of falling to the wearing mode of difference, can strengthen the practicality of neck line formula earphone to when improving voice conversation quality, promote user's use and experience.
An uplink noise reducing headphone according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the above-described uplink noise reduction headphone of the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (8)
1. An uplink noise reduction earphone comprises an earphone line control arranged on an earphone line, and a left earphone shell and a right earphone shell which are respectively connected with two ends of the earphone line; it is characterized in that the preparation method is characterized in that,
a conversation microphone and a noise reduction module are arranged in the earphone line control;
a first microphone and a second microphone are arranged in the left earphone shell, and the distance from the first microphone to the call microphone is larger than the distance from the second microphone to the call microphone;
a third microphone and a fourth microphone are arranged in the right earphone shell, and the distance from the third microphone to the call microphone is larger than the distance from the fourth microphone to the call microphone;
and the position of the third microphone in the right earphone housing is symmetrical to the position of the first microphone in the left earphone housing, and the position of the fourth microphone in the right earphone housing is symmetrical to the position of the second microphone in the left earphone housing;
the noise reduction module comprises a first noise reduction module and a second noise reduction module; wherein,
the first noise reduction module is used for eliminating noise signals in voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone when the call microphone is positioned at the front neck end;
the second noise reduction module is configured to eliminate noise signals from the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone, and the fourth microphone when the call microphone is located at the back end of the neck.
2. The upstream noise reducing headphone of claim 1,
the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; wherein,
the noise reduction module eliminates noise signals in the voice signals according to time differences of the voice signals reaching the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
3. The upstream noise reducing headphone of claim 1,
the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; wherein,
the noise reduction module eliminates noise signals in the voice signals according to energy value differences of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
4. The upstream noise reducing headphone of claim 1,
the earphone line control comprises a line control shell, and the call microphone and the noise reduction module are both arranged in the line control shell; wherein,
the noise reduction module eliminates noise signals in the voice signals according to sensitivity differences of the voice signals picked up by the call microphone, the first microphone, the second microphone, the third microphone and the fourth microphone.
5. The upstream noise reducing headphone of any of claims 2-4,
and a change-over switch is arranged on the wire control shell, and the first noise reduction module and the second noise reduction module are switched through the change-over switch.
6. The upstream noise reducing headphone of claim 1,
the left earphone shell comprises a left earphone main shell body, a left earphone front shell body and a left earphone conducting wire part connected with the left earphone main shell body, and the left earphone conducting wire part and the left earphone front shell body are respectively positioned at two end parts of the left earphone main shell body; wherein,
first microphone sets up be close to in the main casing body of left ear the position of left ear procapsid, the second microphone sets up be close to in the main casing body of left ear the position of left ear wire portion.
7. The upstream noise reducing headphone of claim 1,
the right earphone shell comprises a right earphone main shell body, a right earphone front shell body and a right earphone wire part connected with the right earphone main shell body, and the right earphone wire part and the right earphone front shell body are respectively positioned at two end parts of the right earphone main shell body; wherein,
the third microphone is arranged in the right ear main shell body and close to the right ear front shell body, and the fourth microphone is arranged in the right ear main shell body and close to the right ear wire part.
8. The upstream noise reducing headphone of claim 1,
the communication microphone is an ANC microphone, a capacitor microphone or an electrodynamic microphone;
the first microphone, the second microphone, the third microphone, and the fourth microphone are ANC microphones.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642777.1A CN107426643B (en) | 2017-07-31 | 2017-07-31 | Uplink noise cancelling headphone |
| PCT/CN2017/117480 WO2019024394A1 (en) | 2017-07-31 | 2017-12-20 | Uplink noise reducing earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642777.1A CN107426643B (en) | 2017-07-31 | 2017-07-31 | Uplink noise cancelling headphone |
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| Publication Number | Publication Date |
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| CN107426643A CN107426643A (en) | 2017-12-01 |
| CN107426643B true CN107426643B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710642777.1A Active CN107426643B (en) | 2017-07-31 | 2017-07-31 | Uplink noise cancelling headphone |
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| WO (1) | WO2019024394A1 (en) |
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| CN104994456A (en) * | 2015-07-07 | 2015-10-21 | 惠州Tcl移动通信有限公司 | Earphone capable of improving conversation tone quality and method thereof |
| CN205430557U (en) * | 2016-03-15 | 2016-08-03 | 歌尔声学股份有限公司 | Earphone |
| CN106255003A (en) * | 2016-08-19 | 2016-12-21 | 华为技术有限公司 | Audio process in the operation control method of earphone noise reduction and terminal unit |
| CN106658265A (en) * | 2017-02-14 | 2017-05-10 | 歌尔股份有限公司 | Noise reduction earphone and electronic device |
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| CN201426168Y (en) * | 2009-05-11 | 2010-03-17 | 泰金宝电通股份有限公司 | Microphone headset |
| WO2014053024A1 (en) * | 2012-10-05 | 2014-04-10 | Wolfson Dynamic Hearing Pty Ltd | Binaural hearing system and method |
| JP6375362B2 (en) * | 2013-03-13 | 2018-08-15 | コピン コーポレーション | Noise canceling microphone device |
| CN105848054B (en) * | 2016-03-15 | 2020-04-10 | 歌尔股份有限公司 | Earphone and noise reduction method thereof |
| CN107426643B (en) * | 2017-07-31 | 2019-08-23 | 歌尔股份有限公司 | Uplink noise cancelling headphone |
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2017
- 2017-07-31 CN CN201710642777.1A patent/CN107426643B/en active Active
- 2017-12-20 WO PCT/CN2017/117480 patent/WO2019024394A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853667A (en) * | 2010-05-25 | 2010-10-06 | 无锡中星微电子有限公司 | Voice noise reduction device |
| CN104883636A (en) * | 2014-02-28 | 2015-09-02 | 哈曼国际工业有限公司 | Bionic hearing headset |
| CN104994456A (en) * | 2015-07-07 | 2015-10-21 | 惠州Tcl移动通信有限公司 | Earphone capable of improving conversation tone quality and method thereof |
| CN205430557U (en) * | 2016-03-15 | 2016-08-03 | 歌尔声学股份有限公司 | Earphone |
| CN106255003A (en) * | 2016-08-19 | 2016-12-21 | 华为技术有限公司 | Audio process in the operation control method of earphone noise reduction and terminal unit |
| CN106658265A (en) * | 2017-02-14 | 2017-05-10 | 歌尔股份有限公司 | Noise reduction earphone and electronic device |
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| CN107426643A (en) | 2017-12-01 |
| WO2019024394A1 (en) | 2019-02-07 |
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