CN206698392U - Noise cancelling headphone and electronic equipment - Google Patents
Noise cancelling headphone and electronic equipment Download PDFInfo
- Publication number
- CN206698392U CN206698392U CN201720133226.8U CN201720133226U CN206698392U CN 206698392 U CN206698392 U CN 206698392U CN 201720133226 U CN201720133226 U CN 201720133226U CN 206698392 U CN206698392 U CN 206698392U
- Authority
- CN
- China
- Prior art keywords
- noise
- cancelling headphone
- pars contractilis
- noise reduction
- noise cancelling
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Headphones And Earphones (AREA)
Abstract
The utility model discloses a kind of noise cancelling headphone and electronic equipment.The earphone includes earphone case, main microphon, noise reduction microphone and pars contractilis, the noise reduction microphone is arranged on the earphone case, the main microphon is arranged on the pars contractilis, the pars contractilis is slidably connected with the earphone case, so that the main microphon can be close and away from user's mouth.Noise cancelling headphone of the present utility model includes pars contractilis and the main microphon being arranged on pars contractilis.The earphone realizes stretching and the storage two states of main microphon, to adapt to the use of strong noisy environment and weak noisy environment respectively.
Description
Technical field
Ear phone technology field is the utility model is related to, more particularly, to a kind of noise cancelling headphone and applies the noise reduction
The electronic equipment of earphone.
Background technology
Wireless headset typically all carries up decrease of noise functions, up noise reduction i.e. call noise reduction at present.For example, in noisy environment
In when making a phone call, microphone receives the voice signal of speaker and the noise signal of surrounding environment, and above two signal is passed
To noise reduction chip, by noise reduction algorithm, filter out ambient noise signal and ensure that other side can still hear clearly voice signal.
Call decrease of noise functions is realized typically by single microphone/diamylose gram noise reduction algorithm.
Diamylose gram noise reduction algorithm principle is as follows：Microphone close to speaker's mouth is main microphon, and it is mainly used in picking up
Take people's voice signal；Microphone close to people ear is secondary microphone, is mainly used in picking up noise and voice signal.Voice signal
The time of major-minor microphone is reached because also there is difference its different time difference of distance, noise reduction algorithm carries out noise according to the time difference
Suppress.
The quality of noise reduction of microphone array performance has two key parameters：When the distance between major and minor two microphones,
Second, secondary microphone array line and the angle for the voice sound source (such as mouth) to be strengthened.The distance between major and minor microphone
Greatly, angle is small, then anti-acoustic capability is good, otherwise anti-acoustic capability is poor.
Due to wireless headset wearing and product design, current wireless headset is difficult to have larger dash forward on call anti-acoustic capability
Broken, main cause is：1. product is to the distant of mouth, the conventional distance about 130mm of external auditory canal opening to lip center, this
It is the distance of usual ears radio earphone microphone or microphone array center to lip center；2. microphone or microphone array
Center almost facing away from lip center pickup, and due to wearing the requirement of stable degree, microphone array line and microphone array
The angle of the line at row-lip center is generally larger, more than more than 30 degree.
Current wireless headset size is smaller, and the distance between major and minor microphone is difficult to meet minimal distance requirement.Acceptor
The limitation of microphone size, from mouth farther out, speech quality is bad for main microphon.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of noise cancelling headphone.
According to first aspect of the present utility model, there is provided a kind of noise cancelling headphone.The earphone includes earphone case, main Mike
Wind, noise reduction microphone and pars contractilis, the noise reduction microphone are arranged on the earphone case, and the main microphon is set
On the pars contractilis, the pars contractilis is slidably connected with the earphone case, so that the main microphon can be close and remote
User's mouth.
Alternatively, the pars contractilis is configured as described in retractable in earphone case.
Alternatively, the main microphon is arranged on the end of the pars contractilis, and the noise reduction microphone is arranged on institute
State the top of earphone case.
Alternatively, the pars contractilis is configured to the line slip of the mouth along the noise reduction microphone and user.
Alternatively, in addition to trigger switch, the trigger switch are configurable for identifying the state of the pars contractilis, institute
Main control chip is stated according to the condition selecting noise reduction algorithm.
Alternatively, in addition to for driving the drive device of the pars contractilis.
Alternatively, in addition to identification device, the identification device are configurable for the noise of identification place environment, and root
The pars contractilis is set to stretch out or retract according to the size of the noise.
Alternatively, in addition to sensor, the sensor are arranged on the earphone case, and with the main control chip
Communication connection, the sensor is configured as contacting with the ear of user, to pick up the voice signal of osteoacusis and by the voice
Signal is sent to the main control chip.
According to other side of the present utility model, there is provided a kind of electronic equipment.The equipment carries including the utility model
The noise cancelling headphone of confession.
Inventor of the present utility model has found that in the prior art, the size of wireless headset is smaller, major and minor microphone it
Between distance be difficult to meet minimal distance requirement.And limited by main microphon size, main microphon from mouth farther out, is conversed
Poor quality.Therefore, the technical assignment or technical problem to be solved that the utility model to be realized are art technologies
It is that personnel never expect or it is not expected that, therefore the utility model is a kind of new technical scheme.
Noise cancelling headphone of the present utility model includes pars contractilis and the main microphon being arranged on pars contractilis.The earphone realizes
The stretching of main microphon and storage two states, to adapt to the use of strong noisy environment and weak noisy environment respectively.
In addition, improve the signal to noise ratio of noise cancelling headphone.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the structural representation according to the noise cancelling headphone of the stretching state of the utility model embodiment.
Fig. 2 is the structural representation according to the noise cancelling headphone of the receiving state of the utility model embodiment.
Description of reference numerals：
11：Earplug；12：Back cavity；13：Preceding sound tube；15：Main microphon；16：Noise reduction microphone；17：Sensor；24：Ear
Skin on the inside of road；25：Expansion link；26：Trigger switch.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
According to embodiment of the present utility model, there is provided a kind of noise cancelling headphone.For example, the noise cancelling headphone can be wireless ear
Machine or wired earphone.Formal from wearing, the noise cancelling headphone can be In-Ear Headphones, clip-on type earphone or wear-type ear
Machine.
The noise cancelling headphone includes earphone case, main microphon 15, noise reduction microphone 16 and main control chip.Main microphon 15,
Noise reduction microphone 16 and main control chip are arranged in earphone case.Main microphon 15 and noise reduction microphone 16 lead to main control chip
Letter connection.Main microphon 15 is used to pick up voice signal, and sends the signal to main control chip.Main microphon 15 is inevitable
Pickup and have sent noise signal.Noise reduction microphone 16 is used to pick up voice signal and the noise signal of surrounding environment, and will
Two kinds of signals are sent to main control chip.Main control chip receives the signal from main microphon 15 and noise reduction microphone 16, according to
Noise reduction algorithm carries out noise reduction and voice signal is strengthened.
Main control chip is additionally operable to the voice signal after noise reduction process being sent to mobile terminal, is broadcast by mobile terminal
Put.For example, it is sent to smart mobile phone, tablet personal computer etc..
In the utility model, noise cancelling headphone also includes pars contractilis.Noise reduction microphone 16 is arranged on earphone case.It is main
Microphone 15 is arranged on pars contractilis, and pars contractilis is slidably connected with earphone case, so that main microphon 15 can be close and remote
User's mouth.
The noise cancelling headphone includes receiving state and stretches out state.In receiving state, pars contractilis is retracted so that main microphon
15 away from user's mouth.This state is applied to use noise cancelling headphone in the case that environmental noise is weaker.It is for example, indoor, in-car
Situations such as.In this condition, because the voice of user is small by the interference of environmental noise, therefore need not be by main microphon 15 close to use
Family mouth can pick up voice signal.By picking up the voice signal, noise cancelling headphone can obtain higher signal to noise ratio.
In the state of stretching, pars contractilis stretches out so that main microphon 15 is close to user's mouth.This state is applied to noise
In larger environment, for example, situations such as bar, the market of farm produce, machining factory.Because the stretching of pars contractilis causes main microphon
15 close to user's mouth, therefore improves the directive property of main microphon 15 so that influence of the noise to voice signal reduces.In user
When sending voice, main microphon 15 can be more accurately picked up, and improve the signal to noise ratio of noise cancelling headphone.
The noise cancelling headphone, under receiving state, because environmental noise is smaller, the first noise reduction algorithm that main control chip uses should
It is configured according to weak noise.Under stretching state, because environmental noise is larger, the second noise reduction algorithm that main control chip uses should
It is configured according to strong noise.I.e. in the case where storing and stretching out two states, different noise reduction algorithms is respectively adopted to reach reasonable
Noise reduction.
Noise reduction algorithm is ordinary skill in the art means, and those skilled in the art can be according to being actually needed carry out
First, the selection of the second noise reduction algorithm, does not elaborate herein.
Fig. 1 is the structural representation according to the noise cancelling headphone of the stretching state of the utility model embodiment.Fig. 2 is according to this
The structural representation of the noise cancelling headphone of the receiving state of utility model embodiment.
In this embodiment, noise cancelling headphone is In-Ear wireless headset.Earphone case is earplug 11.The inside tool of earplug 11
There is receiving space.Receiving space is divided into back cavity 12 and the preceding sound tube 13 connected with back cavity 12.Back cavity 12 is used to accommodate various members
Device, and the low-frequency effect of noise cancelling headphone can be improved, preceding sound tube 13 is connected with loudspeaker (not shown) so that sound to be spread out of.Wear
Dai Shi, preceding sound tube 13 are inserted in duct.Power supply module and switch (not shown) are additionally provided with back cavity 12.For example, power supply
Component includes lithium ion battery.Lithium ion battery is loudspeaker, main microphon 15, noise reduction microphone 16 by electric power management circuit
Powered with main control chip etc..
The noise cancelling headphone also includes the printed substrate (PCB) for being integrated with main control chip.Main microphon 15 and noise reduction Mike
Wind 16 is communicated to connect by printed substrate and main control chip.In this way, the integrated level of noise cancelling headphone is substantially increased,
Electronics miniaturization, lightening development trend are complied with.Also, PCB makes main microphon 15, noise reduction microphone 16 and master control
Communication efficiency between chip is more preferable.
For example, main control chip can select DSP (Digital Signal Process, i.e. Digital Signal Processing) core
Piece, it can also select other that there is the chip of store function, corresponding algorithm routine can be write in the main control chip.
In this example embodiment, pars contractilis is configured as in retractable earphone case.For example, pars contractilis uses expansion link 25,
Duct is provided with earplug 11.For example, duct is extended in back cavity 12.Expansion link 25 slides along duct.In receiving state, stretch
Contracting bar 25 is slided into duct, and main microphon 15 is embedded in the outer surface of earplug 11.Now, the entire normalization of noise cancelling headphone, outward appearance
Well.In the state of stretching, expansion link 25 skids off out of duct, so that main microphon 15 is close to user's mouth.
In other examples, expansion link 25 is arranged on (not shown) on the outer surface of earplug 11, and this mode is easy to stretch
The installation of contracting bar 25.
In one example, main microphon 15 is arranged on the end of pars contractilis, and noise reduction microphone 16 is arranged on earphone
The top of housing.So, state or receiving state are either stretched out, is had most between main microphon 15 and noise reduction microphone 16
Big distance so that the excellent noise reduction effect of noise cancelling headphone.
In one example, pars contractilis is configured to slide along the line of noise reduction microphone 16 and user's mouth.So,
The line coincident between line and noise reduction microphone 16 and user's mouth between noise reduction microphone 16 and main microphon 15, two
Angle between line is zero.Noise reduction microphone 16 and main microphon 15 are located on the same propagation path of voice, noise reduction wheat
The voice signal that gram wind 16 picks up is only existed apart from upper difference, in the absence of angle compared with the voice signal that main microphon 15 is picked up
Difference on degree.This setup and the point of theory of noise reduction algorithm are mutually agreed with, so that the noise reduction of noise cancelling headphone is most
It is good.
In one example, in addition to trigger switch, trigger switch 26 are configurable for identifying the state of pars contractilis.Example
Such as, receiving state and stretching state.Main control chip condition selecting noise reduction algorithm according to.For example, as illustrated in fig. 1 and 2, triggering
Switch 26 is arranged on the side of back cavity 12 of earplug 11, in order to trigger.In receiving state, trigger switch 26 is touched, by master
Control chip is arranged to the first noise reduction algorithm；In the state of stretching, trigger switch 26 is touched, main control chip is arranged to the second noise reduction
Algorithm.The switching of noise reduction algorithm is very convenient.
In one example, noise cancelling headphone also includes being used for the drive device for driving pars contractilis.Drive device is e.g. micro-
Type servomotor, to facilitate extending and retracting for expansion link 25.
In one example, noise cancelling headphone also includes identification device.Identification device is configurable for environment where identification
Noise, and according to the size of noise volume make pars contractilis stretch out or retract.For example, identification device includes volume detection core
Piece, the volume of the noise of surrounding environment is detected by the chip.
When volume is up to or over setting value, main control chip judges to use stretching state, and is sent to drive device
Control signal.Drive device driving expansion link 25 stretches out.And main control chip switches to the second noise reduction algorithm.
When volume is not up to setting value, main control chip judges to use receiving state, and sends control letter to drive device
Number.Drive device driving expansion link 25 is retracted.And main control chip switches to the first noise reduction algorithm.
The setting of identification device improves the automaticity of noise cancelling headphone so that the switching of noise cancelling headphone use state is more
It is convenient.
In one example, noise cancelling headphone also includes sensor.Sensor is arranged on earphone case, and with master control core
Piece communicates to connect.Sensor is configured as contacting with the ear of user, to pick up the voice signal of osteoacusis and believe the voice
Number it is sent to main control chip.
For example, as illustrated in fig. 1 and 2, before the sensor 17 is arranged in sound tube 13.When earplug is inserted into duct
When, sensor 17 contacts with the skin 24 on the inside of duct.
User sends voice signal, and the vibration of vocal cords is transferred to human ear by osteoacusis, drives human ear position capillary
Generation respective change.Then, sensor 17 is in close contact with human ear, and lift takes the change of the blood information caused by speech utterance,
And the blood information picked up is transferred to the main control chip in earplug.Main control chip parses to blood information, final
To the voice signal of user.It is indirect by sensor 17 because blood signal will not be fluctuated due to the very noisy in the external world
Obtain voice signal, it can be ensured that the accurate transmission of voice signal, avoid influence of the outside noise signal to speech quality.
Main control chip optimizes to the voice signal picked up by sensor 17 and the voice signal picked up by main microphon,
Accurate voice signal is finally given.This mode improves the accuracy of voice signal pickup.Main control chip is to the voice
Signal is strengthened, and improves sound effect.
In other examples, for example, noise cancelling headphone is ear receiver or clip-on type earphone.Sensor is arranged on ear
The inner side of casing body, i.e., close to ear side, and with the skin contact on the outside of duct.Osteoacusis can equally be effectively picked up
Voice signal.
According to another embodiment of the present utility model, there is provided a kind of electronic equipment.The electronic equipment includes this practicality
The noise cancelling headphone of new offer.The electronic equipment can be, but not limited to, mobile phone, notebook computer, tablet personal computer, radio,
Intelligent watch, intelligent glasses, PSP, virtual reality device (VR) or augmented reality equipment (AR) etc..
The electronic equipment has the characteristics of sound effect is good.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (9)
1. a kind of noise cancelling headphone, it is characterised in that including earphone case, main microphon (15), noise reduction microphone (16) and stretch
Portion, the noise reduction microphone (16) are arranged on the earphone case, and the main microphon (15) is arranged on described flexible
In portion, the pars contractilis is slidably connected with the earphone case, so that the main microphon (15) can be close and away from user's mouth
Portion.
2. noise cancelling headphone according to claim 1, it is characterised in that the pars contractilis is configured as earphone described in retractable
In housing.
3. noise cancelling headphone according to claim 1, it is characterised in that the main microphon (15) is arranged on described flexible
The end in portion, the noise reduction microphone (16) are arranged on the top of the earphone case.
4. noise cancelling headphone according to claim 1, it is characterised in that the pars contractilis is configured to along the noise reduction wheat
The line of gram wind (16) and the mouth of user slides.
5. noise cancelling headphone according to claim 1, it is characterised in that also including trigger switch (26), the trigger switch
(26) it is configurable for identifying the state of the pars contractilis, main control chip is according to the condition selecting noise reduction algorithm.
6. noise cancelling headphone according to claim 1, it is characterised in that also include being used to drive the driving of the pars contractilis to fill
Put.
7. noise cancelling headphone according to claim 6, it is characterised in that also including identification device, the identification device by with
The noise for environment where identifying is set to, and the pars contractilis is stretched out or is retracted according to the size of the noise.
8. noise cancelling headphone according to claim 1, it is characterised in that also including sensor (17), the sensor (17)
It is arranged on the earphone case, and is communicated to connect with main control chip, the sensor (17) is configured as the ear with user
Portion contacts, to pick up the voice signal of osteoacusis and the voice signal is sent into the main control chip.
9. a kind of electronic equipment, it is characterised in that including the noise cancelling headphone as described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720133226.8U CN206698392U (en) | 2017-02-14 | 2017-02-14 | Noise cancelling headphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720133226.8U CN206698392U (en) | 2017-02-14 | 2017-02-14 | Noise cancelling headphone and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206698392U true CN206698392U (en) | 2017-12-01 |
Family
ID=60440288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720133226.8U Withdrawn - After Issue CN206698392U (en) | 2017-02-14 | 2017-02-14 | Noise cancelling headphone and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206698392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071608A (en) * | 2017-02-14 | 2017-08-18 | 歌尔股份有限公司 | Noise cancelling headphone and electronic equipment |
| WO2022002166A1 (en) * | 2020-06-30 | 2022-01-06 | 华为技术有限公司 | Earphone noise processing method and device, and earphone |
-
2017
- 2017-02-14 CN CN201720133226.8U patent/CN206698392U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071608A (en) * | 2017-02-14 | 2017-08-18 | 歌尔股份有限公司 | Noise cancelling headphone and electronic equipment |
| CN107071608B (en) * | 2017-02-14 | 2023-09-29 | 歌尔股份有限公司 | Noise reduction earphone and electronic equipment |
| WO2022002166A1 (en) * | 2020-06-30 | 2022-01-06 | 华为技术有限公司 | Earphone noise processing method and device, and earphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206640738U (en) | Noise cancelling headphone and electronic equipment | |
| CN107071608A (en) | Noise cancelling headphone and electronic equipment | |
| US11122352B2 (en) | Wireless earphone | |
| CN107426643B (en) | Uplink noise cancelling headphone | |
| CN105280195B (en) | The processing method and processing device of voice signal | |
| US20060013410A1 (en) | Mobile-telephone adapters for automatic-noise-reduction headphones | |
| CN202276442U (en) | Headset controlled by intelligent induction | |
| WO2020107604A1 (en) | Wireless playback device, and playback control method and apparatus thereof | |
| CN203632832U (en) | Active noise-reduction-type wireless earphone | |
| US10419838B1 (en) | Headset with proximity user interface | |
| CN108322845A (en) | A kind of noise cancelling headphone | |
| CN108777827A (en) | Wireless headset, method for regulation of sound volume and Related product | |
| CN103974158A (en) | Audio output device | |
| CN206698392U (en) | Noise cancelling headphone and electronic equipment | |
| CN206596167U (en) | Noise cancelling headphone and electronic equipment | |
| CN204993766U (en) | Two in -ear earphone that make an uproar that fall | |
| CN106658265B (en) | Noise reduction earphone and electronic equipment | |
| US20150365760A1 (en) | Rechargeable Hearing Protector Having Multi-function Noise Cancellation Earphone | |
| CN210405606U (en) | TWS Bluetooth earphone capable of synchronously playing call voice and real-time environment sound | |
| CN207340110U (en) | Earphone with outer playing function | |
| CN213581633U (en) | Intelligence bluetooth glasses | |
| CN210579228U (en) | Hearing aid with frequency conversion function | |
| CN113271515A (en) | Noise reduction method and structure based on double-microphone Bluetooth headset | |
| CN208707900U (en) | A kind of noise cancelling headphone | |
| CN209627652U (en) | A kind of In-Ear wireless Bluetooth headsets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171201 Effective date of abandoning: 20230929 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171201 Effective date of abandoning: 20230929 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |