CN105848054A - Earphone and noise reducing method thereof - Google Patents
Earphone and noise reducing method thereof Download PDFInfo
- Publication number
- CN105848054A CN105848054A CN201610147513.4A CN201610147513A CN105848054A CN 105848054 A CN105848054 A CN 105848054A CN 201610147513 A CN201610147513 A CN 201610147513A CN 105848054 A CN105848054 A CN 105848054A
- Authority
- CN
- China
- Prior art keywords
- earphone
- noise reduction
- mike
- noise
- wave beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Abstract
The invention provides an earphone and a noise reducing method thereof. The earphone comprises two ear plugs and earphone lines connected with the ear plugs, wherein the ear plugs comprise shells and sounding units accommodated in the shells; noise reducing microphones are arranged in the two ear plugs respectively; a call microphone is fixed to one of the earphone lines; the call microphone and the two noise reducing microphones are used for performing uplink noise reduction on the earphone; and the two noise reduction microphones are used for performing downlink noise reduction on the earphone. Through adoption of the earphone and the noise reducing method thereof, a heart-shaped wave beam can be formed in front of the head of a user through the three microphones, so that the influence of external noise is lowered, and the call quality of the earphone is improved.
Description
Technical field
The present invention relates to technical field of acoustics, more specifically, relate to one have up decrease of noise functions and
The ANC earphone of descending decrease of noise functions and noise-reduction method thereof.
Background technology
At present, before ANC (Active Noise Control, active noise control system) earphone mainly includes
Feedback formula, reaction type and hybrid several, this type of earphone by loudspeaker, earphone outer covering, noise reduction microphone and
The part compositions such as call mike, wire rod and line traffic control.
The call function of existing feed forward type and hybrid ANC earphone mainly includes two kinds of implementations, one
Being to be realized by call mike, now, single call mike is not easily accomplished up noise reduction process,
Thus be difficult to improve speech quality；Two is to realize Beam Forming (wave beam by feedforward ANC mike
Shape), to eliminate the noise in the range of human ear both sides, but, owing to two ANC mikes are formed
Wave beam be the figure of eight, cannot be carried out the noise of user's back head eliminating, it is difficult to realize only to logical
The pickup of words signal.
Understanding, existing ANC earphone only has two ANC mikes to be relatively-stationary, receives
Audio signal is also metastable, and the wave beam that two mikes can be accomplished can only be the figure of eight,
The wave beam of user's back head cannot be cancelled；Additionally, call mike cannot be carried out effective fixing, and
And call mike is usually single, it is impossible to accomplish up noise reduction process.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of ANC earphone and noise-reduction method thereof, pass through
Two ANC mikes realize the descending noise reduction of earphone, and at call mike and two ANC mikes
Common effect under, it is achieved the up noise reduction of earphone, it is possible to be effectively improved noise reduction capability and the user of earphone
Speech quality.
According to an aspect of the present invention, it is provided that a kind of earphone, it is connected with receiver including two receivers
Earphone cord；Wherein, receiver includes shell and houses phonation unit in the enclosure；Wherein, two
It is respectively arranged with a noise reduction microphone in individual receiver, earphone cord is fixed with a call mike；Its
In, call mike and two noise reduction microphones are for carrying out up noise reduction to earphone；Further, two falls
Make an uproar mike for earphone is carried out descending noise reduction.
Furthermore it is preferred that scheme be that the voice signal received is processed by noise reduction microphone, eliminate
Noise signal on direction, human ear both sides, and the wave beam of the figure of eight is formed at head fore-and-aft direction.
Furthermore it is preferred that scheme be, call the mike voice signal to receiving carry out Parameter analysis,
Judge the direction of voice signal, and eliminate the wave beam being positioned at head rear, form " heart " being positioned at head front
Shape wave beam.
Furthermore it is preferred that scheme be that noise reduction microphone is ANC mike；Call mike is ANC
Mike, Electret Condencer Microphone or electrodynamic type mike.
Furthermore it is preferred that scheme be, call mike on be provided with fixed structure.
Furthermore it is preferred that scheme be that shell includes protecgulum and the bonnet of adaptive connection, phonation unit and right
The noise reduction microphone answered all is housed in protecgulum and bonnet.
Furthermore it is preferred that scheme be, call mike be fixed on any one earphone cord, converse mike
Triangular structure is formed with two noise reduction microphones.
Furthermore it is preferred that scheme be on protecgulum, be provided with master voice outlet tube, at master voice outlet tube
On be provided with the pleasant ear muff of adaptive connection.
Furthermore it is preferred that scheme be, master voice outlet tube is pasted with regulation phonation unit acoustics
The tuning sheet material of energy；Wherein, tuning sheet material is screen cloth, sponge or non-woven fabrics.
According to a further aspect in the invention, it is provided that a kind of earphone noise-reduction method, above-mentioned earphone is utilized to external world
Noise carries out noise reduction process；Wherein, earphone noise-reduction method includes: the noise reduction microphone voice to receiving
Signal carries out descending noise reduction process, eliminates the noise signal on direction, human ear both sides, and in head front and back
To the wave beam forming the figure of eight；The voice signal received is entered by the call mike being positioned on earphone cord
Row analyzing and processing, eliminates the wave beam being positioned at head rear, retains the wave beam being positioned at head front, it is achieved right
The noise reduction of earphone.
Utilize the above-mentioned earphone according to the present invention and noise-reduction method thereof, by the noise reduction Mike in two receivers
The noise signal of user's ear both sides is eliminated by wind, then under the cooperation of call mike, eliminates
It is positioned at the noise signal at user's head rear, it is possible to realize the up noise reduction of earphone and descending noise reduction simultaneously,
It is effectively improved speech quality and the Consumer's Experience of user.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention include below will be in detail
The feature illustrating and being particularly pointed out in the claims.Description below and accompanying drawing are described in detail this
Some bright illustrative aspects.But, the principle that only can use the present invention of these aspects instruction
Some modes in various modes.Additionally, it is contemplated that include all these aspect and they etc.
Jljl.
Accompanying drawing explanation
By with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with to the present invention
Be more fully understood from, other purpose of the present invention and result will be more apparent and should be readily appreciated that.In the accompanying drawings:
Fig. 1 is the microphone position distribution schematic diagram according to the embodiment of the present invention；
Fig. 2-1 is the figure of eight wave beam schematic diagram according to the embodiment of the present invention；
Fig. 2-2 is " heart " shape wave beam schematic diagram according to the embodiment of the present invention；
Fig. 3 is the earphone principle of noise reduction block diagram according to the embodiment of the present invention；
Fig. 4 is the earphone noise-reduction method flow chart according to the embodiment of the present invention.
Reference therein includes: noise reduction microphone 1,1 ', call mike 2, earphone cord 3, use
Family 4.
The most identical label indicates similar or corresponding feature or function.
Detailed description of the invention
In the following description, for purposes of illustration, complete in order to provide one or more embodiments
Foliation solution, elaborates many details.It may be evident, however, that these details can also there is no
In the case of realize these embodiments.In other example, for the ease of describing one or more embodiments,
Known structure and equipment illustrate in block form an.
For describing earphone and the noise-reduction method thereof of the present invention in detail, below with reference to the accompanying drawing tool to the present invention
Body embodiment is described in detail.
Fig. 1 shows that structure is shown in microphone position distribution according to embodiments of the present invention.
As it is shown in figure 1, the earphone of the embodiment of the present invention, the ear being connected with receiver including two receivers
Machine line 3；Wherein, each receiver all includes shell and houses phonation unit in the enclosure；That is, earphone
Including two receivers, each receiver is connected to corresponding earphone cord, is respectively provided with in two receivers
There is a noise reduction microphone (respectively mike 1 and mike 1 ', lower same), at any one earphone cord
On be fixed with a call mike 2；Wherein, call mike 2 and two noise reduction microphones are for earphone
Carry out up noise reduction；Further, two noise reduction microphones can also realize the descending noise reduction to earphone.
In a specific embodiment of the present invention, noise reduction microphone can use ANC (Active
Noise Control, active noise control system) mike, call mike 2 can use ANC wheat
Gram wind, it would however also be possible to employ common Electret Condencer Microphone or electrodynamic type mike etc..In utilizing receiver
Two noise reduction microphones, the voice signal received by mike carries out algorithm process, eliminates and be positioned at people
Noise signal on direction, ear both sides, before and after user 4 head, direction forms the wave beam of the figure of eight.
Specifically, Fig. 2-1 and Fig. 2-2 respectively illustrates figure of eight wave beam according to embodiments of the present invention
" heart " shape wave beam schematic construction.
Shown in as common in Fig. 1 to Fig. 2-1, in the earphone of the specific embodiment of the invention, it is positioned at user 4
The receiver of left and right in ear is respectively arranged with a noise reduction microphone 1 and noise reduction microphone 1 ', at two receivers
In any one earphone cord 3 on be fixed with call mike 2, call mike 2 and two noise reduction Mikes
Wind forms triangular structure.Wherein, F direction shown in accompanying drawing is expressed as the direction in user 4 head front,
B direction is expressed as with the direction at 4 rears of account.
4 call mike 2 is fixed for the convenience of the user, it is also possible at the shell of call mike 2
Or the easy fixed structures such as fixation clamp are set on cavity.In communication process, user 4 can pass through
Call mike 2 is fixed on clothes by fixed structure, and coordinates two the noise reduction Mikes being positioned at receiver
Wind realizes the up noise reduction process to earphone.
Specifically, Fig. 3 shows earphone principle of noise reduction according to embodiments of the present invention.
As it is shown on figure 3, in the earphone noise reduction process of the embodiment of the present invention, utilize two falls in earphone
Make an uproar mike (or ANC mike), its voice signal received is carried out algorithm process, to disappear
Remove the noise signal on direction, human ear both sides, and be upwardly formed the figure of eight in user's head front and back
Wave beam, as shown in Fig. 2-1；Wherein, the cooperation of two noise reduction microphones, can improve to a certain extent
The signal to noise ratio (unit dB) of earphone, promotes speech quality.
Then, in communication process, the call mike on earphone cord equally receives voice signal, logical
Cross and the voice signal received by call mike is analyzed, the size of contrast phone signal, frequency
Etc. parameter, it is judged that the direction " F " of call voice signal and " B "；Finally, by algorithm process, in " 8 "
On the wave beam of font, the wave beam in " B " direction is eliminated, only retain the wave beam on " F " direction, such as Fig. 2-2
Shown in, ultimately form " heart " the shape wave beam being positioned at user's head front.
In another embodiment of the present invention, shell includes protecgulum and the bonnet of adaptive connection, sends out
Sound unit and corresponding noise reduction microphone are all housed in protecgulum and bonnet；Protecgulum is provided with master voice
Outlet tube, is provided with the pleasant ear muff of adaptive connection on master voice outlet tube, and pleasant ear muff can use
The materials such as silica gel or high resiliency polyester are made, and can be in close contact with auditory meatus after it inserts auditory meatus,
Enter middle ear and interior in ear with isolation sound, reach the purpose of sound insulation.In addition it is also possible to it is defeated at master voice
Go out to be pasted with on pipe the tuning sheet material of the acoustical behavior of regulation phonation unit, to improve the acoustical behavior of earphone.
Wherein, tuning sheet material can use screen cloth, sponge or non-woven fabrics etc..
Utilize the above-mentioned earphone according to the present invention, be fixed by call Mike is divided, it is ensured that noise reduction wheat
The position of gram wind and call shell wind is fixed, thus under the common effect of three mikes, is formed " heart "
The voice signal of shape wave beam, and export to human ear as signal, it is possible to effectively reduce outside noise to call
Impact, improve user speech quality.
Corresponding with above-mentioned Headphone device, the present invention also provides for a kind of earphone noise-reduction method, utilizes above-mentioned ear
Machine noise to external world carries out noise reduction process.Wherein, Fig. 4 shows earphone fall according to embodiments of the present invention
Method for de-noising flow process.
As shown in Figure 4, the earphone noise-reduction method of the embodiment of the present invention, including step as follows:
S410: the noise reduction microphone voice signal to receiving carries out descending noise reduction process, eliminates human ear two
Side noise signal upwards, and the wave beam of the figure of eight is formed at head fore-and-aft direction.
In this step, it can be connect by two noise reduction microphones (or ANC mike) in earphone
The voice signal received carries out algorithm process, and elimination is positioned at the noise signal on direction, human ear both sides,
User's head front and back are upwardly formed the wave beam of the figure of eight, improve the noise when speech quality of earphone.
S420: the voice signal received is analyzed processing by the call mike being positioned on earphone cord,
Eliminating and be positioned at the wave beam at head rear, retain the wave beam being positioned at head front, finally realize earphone is upper
Row noise reduction process.
Wherein, the call being pointed on earphone cord voice signal received by mike is analyzed, right
Than various parameters such as the size of voice signal, frequencies, it is judged that the direction of call voice signal；Finally, logical
Crossing algorithm process, the wave beam that will be located in head rear on the wave beam of the figure of eight eliminates, and only retains and is positioned at
" heart " the shape beam signal in head front, and export to human ear, it is possible to realize ear by call mike
The up noise reduction of machine, improves speech quality.
For the embodiment of the earphone noise-reduction method of present invention offer, owing to it is substantially similar to earphone
Device embodiment, relevant part sees the part explanation of device embodiment, and here is omitted.
Understanding, the earphone of the present invention includes up noise reduction unit and descending noise reduction unit, up noise reduction unit
Including two noise reduction microphones being positioned at receiver and the call mike being positioned on earphone cord；Under
Row noise reduction unit includes two noise reduction microphones being positioned at receiver.In three mikes (two noise reduction wheats
Gram wind and a call mike) common effect under, it is possible to realize simultaneously the up noise reduction to earphone and
Descending noise reduction, noise reduction is obvious.
By above-mentioned embodiment it can be seen that the earphone provided according to the present invention and noise-reduction method thereof, logical
The noise signal of user's ear both sides is eliminated by the noise reduction microphone crossed in two receivers, then logical
Under the cooperation of words mike, the noise signal that will be located in user's head rear is also carried out eliminating, it is possible to simultaneously
Realize the up noise reduction of earphone and descending noise reduction, be effectively improved speech quality and the Consumer's Experience of user.
Above with reference to figure accompanying drawing, the earphone according to the present invention and noise-reduction method thereof are described in an illustrative manner.But
It is to it will be appreciated by those skilled in the art that the earphone and noise-reduction method thereof that the invention described above is proposed,
Various improvement can also be made on the basis of without departing from present invention.Therefore, the protection model of the present invention
Enclose and should be determined by the content of appending claims.
Claims (10)
1. an earphone, the earphone cord being connected with described receiver including two receivers；Wherein, described
Receiver includes shell and is housed in the phonation unit in described shell；It is characterized in that,
In said two receiver, it is respectively arranged with a noise reduction microphone, described earphone cord is fixed with
One call mike；Wherein,
Described call mike and two noise reduction microphones are for carrying out up noise reduction to described earphone；Further,
Described two noise reduction microphones are for carrying out descending noise reduction to described earphone.
2. earphone as claimed in claim 1, it is characterised in that
The voice signal received is processed by described noise reduction microphone, eliminates on direction, human ear both sides
Noise signal, and the wave beam of the figure of eight is formed at head fore-and-aft direction.
3. earphone as claimed in claim 2, it is characterised in that
The described call mike voice signal to receiving carries out Parameter analysis, it is judged that described voice signal
Direction, and eliminate and be positioned at the wave beam at head rear, form " heart " the shape wave beam being positioned at head front.
4. earphone as claimed in claim 1, it is characterised in that
Described noise reduction microphone is ANC mike；
Described call mike is ANC mike, Electret Condencer Microphone or electrodynamic type mike.
5. earphone as claimed in claim 1, it is characterised in that
Described call mike is provided with fixed structure.
6. earphone as claimed in claim 1, it is characterised in that
Described shell includes protecgulum and the bonnet of adaptive connection, described phonation unit and corresponding noise reduction Mike
Wind is all housed in described protecgulum and bonnet.
7. earphone as claimed in claim 1, it is characterised in that
Described call mike is fixed on any one earphone cord, described call mike and described two falls
Mike of making an uproar forms triangular structure.
8. earphone as claimed in claim 1, it is characterised in that
Described protecgulum is provided with master voice outlet tube, described master voice outlet tube is provided with adaptation
The pleasant ear muff connected.
9. earphone as claimed in claim 1, it is characterised in that
Described master voice outlet tube is pasted with the tone tuning piece of the acoustical behavior regulating described phonation unit
Material；Wherein,
Described tuning sheet material is screen cloth, sponge or non-woven fabrics.
10. an earphone noise-reduction method, utilizes the earphone as described in any one of claim 1 to 9 external
Boundary's noise carries out noise reduction process；Wherein, described method includes:
The noise reduction microphone voice signal to receiving carries out descending noise reduction process, eliminates direction, human ear both sides
On noise signal, and head fore-and-aft direction formed the figure of eight wave beam；
The described voice signal received is analyzed processing by the call mike being positioned on earphone cord, disappears
Remove the wave beam being positioned at head rear, retain the wave beam being positioned at head front, it is achieved the noise reduction to described earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147513.4A CN105848054B (en) | 2016-03-15 | 2016-03-15 | Earphone and noise reduction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147513.4A CN105848054B (en) | 2016-03-15 | 2016-03-15 | Earphone and noise reduction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105848054A true CN105848054A (en) | 2016-08-10 |
| CN105848054B CN105848054B (en) | 2020-04-10 |
Family
ID=56588186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147513.4A Active CN105848054B (en) | 2016-03-15 | 2016-03-15 | Earphone and noise reduction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105848054B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018461A (en) * | 2017-03-22 | 2017-08-04 | 广东欧珀移动通信有限公司 | Earphone and its noise-reduction method |
| WO2018149073A1 (en) * | 2017-02-14 | 2018-08-23 | 歌尔股份有限公司 | Noise-cancelling headphone and electronic device |
| CN109068215A (en) * | 2018-08-14 | 2018-12-21 | 歌尔科技有限公司 | A kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones |
| WO2019024393A1 (en) * | 2017-07-31 | 2019-02-07 | 歌尔股份有限公司 | Earphone uplink denoising method |
| WO2019024394A1 (en) * | 2017-07-31 | 2019-02-07 | 歌尔股份有限公司 | Uplink noise reducing earphone |
| CN110149573A (en) * | 2019-04-01 | 2019-08-20 | 联想(北京)有限公司 | A kind of electronic equipment |
| TWI823334B (en) * | 2016-10-24 | 2023-11-21 | 美商艾孚諾亞公司 | Automatic noise cancellation using multiple microphones |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074129A1 (en) * | 2001-08-01 | 2005-04-07 | Dashen Fan | Cardioid beam with a desired null based acoustic devices, systems and methods |
| CN101667426A (en) * | 2009-09-23 | 2010-03-10 | 中兴通讯股份有限公司 | Device and method for eliminating environmental noise |
| CN105049976A (en) * | 2015-07-30 | 2015-11-11 | 华为技术有限公司 | Method for noise reduction, headset and terminal |
| CN204887355U (en) * | 2015-07-03 | 2015-12-16 | 歌尔声学股份有限公司 | Earphone |
| WO2016007480A1 (en) * | 2014-07-11 | 2016-01-14 | Analog Devices, Inc. | Low power uplink noise cancellation |
| CN205430557U (en) * | 2016-03-15 | 2016-08-03 | 歌尔声学股份有限公司 | Earphone |
-
2016
- 2016-03-15 CN CN201610147513.4A patent/CN105848054B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074129A1 (en) * | 2001-08-01 | 2005-04-07 | Dashen Fan | Cardioid beam with a desired null based acoustic devices, systems and methods |
| CN101667426A (en) * | 2009-09-23 | 2010-03-10 | 中兴通讯股份有限公司 | Device and method for eliminating environmental noise |
| WO2016007480A1 (en) * | 2014-07-11 | 2016-01-14 | Analog Devices, Inc. | Low power uplink noise cancellation |
| CN204887355U (en) * | 2015-07-03 | 2015-12-16 | 歌尔声学股份有限公司 | Earphone |
| CN105049976A (en) * | 2015-07-30 | 2015-11-11 | 华为技术有限公司 | Method for noise reduction, headset and terminal |
| CN205430557U (en) * | 2016-03-15 | 2016-08-03 | 歌尔声学股份有限公司 | Earphone |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI823334B (en) * | 2016-10-24 | 2023-11-21 | 美商艾孚諾亞公司 | Automatic noise cancellation using multiple microphones |
| WO2018149073A1 (en) * | 2017-02-14 | 2018-08-23 | 歌尔股份有限公司 | Noise-cancelling headphone and electronic device |
| CN107018461A (en) * | 2017-03-22 | 2017-08-04 | 广东欧珀移动通信有限公司 | Earphone and its noise-reduction method |
| WO2019024393A1 (en) * | 2017-07-31 | 2019-02-07 | 歌尔股份有限公司 | Earphone uplink denoising method |
| WO2019024394A1 (en) * | 2017-07-31 | 2019-02-07 | 歌尔股份有限公司 | Uplink noise reducing earphone |
| CN109068215A (en) * | 2018-08-14 | 2018-12-21 | 歌尔科技有限公司 | A kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones |
| CN109068215B (en) * | 2018-08-14 | 2020-03-13 | 歌尔科技有限公司 | Noise reduction method and device of in-ear earphone and in-ear earphone |
| CN110149573A (en) * | 2019-04-01 | 2019-08-20 | 联想(北京)有限公司 | A kind of electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105848054B (en) | 2020-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105848054A (en) | Earphone and noise reducing method thereof | |
| CN107426643B (en) | Uplink noise cancelling headphone | |
| EP2843915B1 (en) | Headset communication method under loud-noise environment and headset | |
| CN107533838A (en) | Sensed using the voice of multiple microphones | |
| CN104661152B (en) | Spatial filter bank for hearing system | |
| CN206640738U (en) | Noise cancelling headphone and electronic equipment | |
| CN106254990B (en) | Earphone noise-reduction method and noise cancelling headphone | |
| CN111902866A (en) | Echo control in a binaural adaptive noise cancellation system in a headphone | |
| CN108322845B (en) | Noise reduction earphone | |
| CN205430557U (en) | Earphone | |
| US20220335924A1 (en) | Method for reducing occlusion effect of earphone, and related apparatus | |
| CN204887355U (en) | Earphone | |
| EA011361B1 (en) | Apparatus and method for sound enhancement | |
| CN104254029A (en) | Headset having microphone | |
| CN103856861A (en) | Active noise reduction system, noise reduction earphone and mobile terminal | |
| CN104429096A (en) | An audio signal output device and method of processing an audio signal | |
| US9881600B1 (en) | Acoustically open headphone with active noise reduction | |
| CN107396223A (en) | The up noise-reduction method of earphone | |
| CN113498005A (en) | Hearing device adapted to provide an estimate of the user's own voice | |
| CN109310525A (en) | Media compensation passes through and pattern switching | |
| CN106254989A (en) | A kind of noise cancelling headphone and noise-reduction method thereof | |
| CN110149573A (en) | A kind of electronic equipment | |
| CN111010642B (en) | Earphone and uplink noise reduction method thereof | |
| CN206024053U (en) | Active noise reduction In-Ear Headphones | |
| Puder | Hearing aids: an overview of the state-of-the-art, challenges, and future trends of an interesting audio signal processing application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |