CN207884835U - A kind of noise cancelling headphone based on Lightning interfaces - Google Patents
A kind of noise cancelling headphone based on Lightning interfaces Download PDFInfo
- Publication number
- CN207884835U CN207884835U CN201820066743.2U CN201820066743U CN207884835U CN 207884835 U CN207884835 U CN 207884835U CN 201820066743 U CN201820066743 U CN 201820066743U CN 207884835 U CN207884835 U CN 207884835U
- Authority
- CN
- China
- Prior art keywords
- microphone
- signal
- lightning
- noise
- cancelling headphone
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of noise cancelling headphones based on Lightning interfaces, including signal receiving module, noise reduction module, the first microphone, second microphone and loudspeaker, signal receiving module is electrically connected with second microphone, signal de-noising module is also electrically connected with the first microphone, second microphone, loudspeaker respectively, and the first microphone is also electrically connected with second microphone；First microphone acquires background noise and call voice signal, antiphase signal is generated after signal de-noising resume module, antiphase signal is mixed with the call voice signal that second microphone acquires, eliminates background noise, and voice transfer to the loudspeaker after elimination background noise are played out.The utility model can be used family in the case where background noise is larger, also can clearly converse with other side, improve the convenience and confidentiality of call, improve the communication experiences of caller.
Description
Technical field
The utility model is related to ear phone technology field more particularly to a kind of noise cancelling headphones based on Lightning interfaces.
Background technology
Currently, existing mobile phone mainly uses 3.5mm earpiece holes interfaces, audio input output is all analog signal, sound quality
It is poor.The function of smart mobile phone is more and more, and the space for causing it internal is more and more crowded, cancels conventional 3.5mm earphones and inserts
Hole has been smart mobile phone development inevitable choice.It uses the mobile phone of Lightning interfaces more and more on the market at present, uses
The earphone of Lightning interfaces has certain occupancy volume on the market.
The maximum feature of digital earphone based on Lightning interfaces is exactly audio signal unlike conventional analog signal earphone
Equally, the quasi- signal conversion of digital revolving die is done in mobile phone, audio player, but by all digital data transmissions in mobile phone
To earphone, ensures that mobile phone output is identical with the digital signal of earphone input, reduce sound quality loss to the full extent.
Currently based on the earphone of Lightning interfaces all without decrease of noise functions, in use, noise under the big environment of noise
Source can hank influence to the quality of call, so that both call sides is not heard dialog context, even cannot smoothly converse, be
User brings inconvenience using the earphone based on Lightning interfaces.
Therefore, the existing technology needs to be improved and developed.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide one kind being based on Lightning interfaces
Noise cancelling headphone, it is intended to solve the problems, such as that the earphone in the prior art based on Lightning interfaces does not all have decrease of noise functions.
The technical solution of the utility model is as follows：
A kind of noise cancelling headphone based on Lightning interfaces, including signal receiving module, signal de-noising module, the first wheat
Gram wind, second microphone and loudspeaker, the signal receiving module are electrically connected with the second microphone, the signal de-noising module
It is also electrically connected respectively with first microphone, the second microphone, the loudspeaker, first microphone is also with described
Two microphones are electrically connected；
The first microphone acquisition background noise and call voice signal, reverse phase is generated after signal de-noising resume module
Position signal, antiphase signal is mixed with the call voice signal that second microphone acquires, and eliminates background noise, and will disappear
Except the voice transfer after background noise to the loudspeaker plays out.
Preferably, the signal receiving module includes being connected for the Lightning interfaces with electronic equipment
Lightning interfacing units, and Lightning audio units that audio for Lightning interfaces is handled, institute
It states Lightning interfacing units to connect with the Lightning audio units, the Lightning audio units and institute
State second microphone connection.
Preferably, the noise cancelling headphone further includes 3.5mm interface modules, the call for acquiring the second microphone
Transmitting voice signal is to being provided on the electronic equipment of 3.5mm interfaces.
Preferably, the signal de-noising module includes filter unit, amplifying unit, control unit, adder and biased electrical
Unit, the filter unit is pressed to be electrically connected with the amplifying unit, the adder is electrically connected with the amplifying unit, the control
Unit processed is electrically connected with the filter unit, amplifying unit, adder and bias voltage units respectively.
Preferably, first microphone is two omni-directional microphones.
Preferably, the filter unit includes 2 filters.
Preferably, the noise cancelling headphone further includes the memory module for storing communicating data, the memory module and institute
State second microphone electrical connection.
Advantageous effect：The utility model provides a kind of noise cancelling headphone based on Lightning interfaces, and family can be used to carry on the back
In the case that scape noise is larger, it also can clearly converse with other side, improve the convenience and confidentiality of call, improve call
The communication experiences of person.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the schematic diagram of noise cancelling headphone preferred embodiment of the utility model based on Lightning interfaces；
Specific implementation mode
The utility model provides one kind, to keep the purpose of this utility model, technical solution and effect clearer, clear,
The utility model is further described below.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model is not used to limit the utility model.
Referring to Fig. 1, as shown in Figure 1, the noise cancelling headphone 100 based on Lightning interfaces include signal receiving module 11,
Signal de-noising module 13, the first microphone 14, second microphone 12 and loudspeaker 15, signal receiving module 11 and second microphone 14
Electrical connection, signal de-noising module 13 are also electrically connected with the first microphone 14, second microphone 12, loudspeaker 15 respectively, the first Mike
Wind 14 is also electrically connected with second microphone 12；
First microphone 14 acquires background noise and call voice signal, and reverse phase is generated after the processing of signal de-noising module 13
Position signal, antiphase signal is mixed with the call voice signal that second microphone 12 acquires, and eliminates background noise, and will
Voice transfer to the loudspeaker 15 after background noise are eliminated to play out.When it is implemented, collecting background using the first microphone 14
Noise and other side are transmitted through the call sound come, after the processing of 13 Digital Signal Processing of signal de-noising module, generate the signal of antiphase,
And mix up with second microphone 12, to eliminate the background sound of environment, removal noise reaches 40dB.User is any noisy
In the environment of, such as street corner bustling with vehicles, exhibition scene, even Pub, KTV remain to pass to other side clearly without the communication sound made an uproar
Matter, need not repetition of explanation or amplification volume always, or even a quietly place call is in addition looked for, also there is no concern that sometimes
The place where allowing other side to know oneself is not wanted, the call convenience that improves, confidentiality, and then improve the call body of user
It tests.
Preferably, signal receiving module 11 includes the Lightning being connected for the Lightning interfaces with electronic equipment
Interfacing unit 111, and Lightning audio units 112 that audio for Lightning interfaces is handled,
Lightning interfacing units 111 are connect with Lightning audio units 112, Lightning audio units 112 and second
Microphone 14 connects.Specifically, electronic equipment be with Lightning interfaces the equipment that can be conversed, including it is but unlimited
In iphone series mobile phone and ipad.For example, by taking iphone7 as an example, Lightning interface modules 111 are connect with iphone7,
Obtain call voice signal, the audio conversion that Lightning audio units then are used to receive Lightning interfacing units
It is changed to universal audio.
Preferably, noise cancelling headphone further includes 3.5mm interface modules 16, the call voice for acquiring second microphone 12
Signal transmission is to being provided on the electronic equipment of 3.5mm interfaces.Then at this time can be connected to the voice that noise cancelling headphone obtains has
The electronic equipment of 3.5mm interfaces plays out.
Preferably, signal de-noising module 13 includes filter unit, amplifying unit, control unit, adder and bias voltage
Unit, filter unit are electrically connected with amplifying unit, and adder is electrically connected with amplifying unit, control unit respectively with filter unit,
Amplifying unit, adder and bias voltage units electrical connection.Specifically, the background that filter unit is used to acquire the first microphone
Noise and call voice signal are filtered, remove noise, and by remove noise after background noise and call voice signal into
Row amplification, and after carrying out antiphase processing, the call voice signal of second microphone acquisition is obtained, by the background noise after reverse phase
And after call voice signal is overlapped with call voice signal, the background noise of reverse phase is obtained, by the background noise after reverse phase
After background noise and call voice Signal averaging, noiseless call voice signal is obtained, and by noiseless call voice
Signal transmission is answered to loudspeaker for user.Filter unit includes at least two filter.Preferably, 2 filters are selected, respectively
The voice signal acquired to the first microphone and second microphone is filtered.
Preferably, the first microphone 14 is two omni-directional microphones.Omni-directional microphone pickup radius is very big, one meter two
Three meters of five meters have of rice.The sensitivity of omnidirectional microphone is all very high, and background noise and call voice signal are obtained to facilitate.
Preferably, noise cancelling headphone further includes the memory module 17 for storing communicating data, memory module 17 and the second wheat
Gram wind 12 is electrically connected.Communicating data is stored by memory module 17, can be that user preserves message registration in time.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit requires.
Claims (7)
1. a kind of noise cancelling headphone based on Lightning interfaces, which is characterized in that including signal receiving module, signal de-noising mould
Block, the first microphone, second microphone and loudspeaker, the signal receiving module are electrically connected with the second microphone, the letter
Number noise reduction module is also electrically connected with first microphone, the second microphone, the loudspeaker respectively, first microphone
Also it is electrically connected with the second microphone；
The first microphone acquisition background noise and call voice signal, generate antiphase letter after signal de-noising resume module
Number, antiphase signal is mixed with the call voice signal that second microphone acquires, eliminates background noise, and carry on the back eliminating
Voice transfer to the loudspeaker after scape noise play out.
2. the noise cancelling headphone according to claim 1 based on Lightning interfaces, which is characterized in that the signal receives
Module includes the Lightning interfacing units being connected for the Lightning interfaces with electronic equipment, and is used for
The Lightning audio units that the audio of Lightning interfaces is handled, the Lightning interfacing units and institute
The connection of Lightning audio units is stated, the Lightning audio units are connect with the second microphone.
3. the noise cancelling headphone according to claim 2 based on Lightning interfaces, which is characterized in that the noise cancelling headphone
Further include 3.5mm interface modules, the call voice signal transmission for acquiring the second microphone connects to 3.5mm is provided with
On the electronic equipment of mouth.
4. the noise cancelling headphone according to claim 3 based on Lightning interfaces, which is characterized in that the signal de-noising
Module includes filter unit, amplifying unit, control unit, adder and bias voltage units, and the filter unit is put with described
Big unit is electrically connected, and the adder is electrically connected with the amplifying unit, described control unit respectively with the filter unit, put
Big unit, adder and bias voltage units electrical connection.
5. the noise cancelling headphone according to claim 4 based on Lightning interfaces, which is characterized in that first Mike
Wind is two omni-directional microphones.
6. the noise cancelling headphone according to claim 5 based on Lightning interfaces, which is characterized in that the filter unit
Including at least two filter.
7. according to noise cancelling headphone of the claim 1-6 any one of them based on Lightning interfaces, which is characterized in that described
Noise cancelling headphone further includes the memory module for storing communicating data, and the memory module is electrically connected with the second microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066743.2U CN207884835U (en) | 2018-01-16 | 2018-01-16 | A kind of noise cancelling headphone based on Lightning interfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066743.2U CN207884835U (en) | 2018-01-16 | 2018-01-16 | A kind of noise cancelling headphone based on Lightning interfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884835U true CN207884835U (en) | 2018-09-18 |
Family
ID=63506981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820066743.2U Expired - Fee Related CN207884835U (en) | 2018-01-16 | 2018-01-16 | A kind of noise cancelling headphone based on Lightning interfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207884835U (en) |
-
2018
- 2018-01-16 CN CN201820066743.2U patent/CN207884835U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7317932B2 (en) | Portable phone capable of being switched into hearing aid function | |
| CN104521247B (en) | Bluetooth headset hearing aid and anti-noise method and apparatus | |
| CN103873975B (en) | A kind of methods, devices and systems realizing bluetooth earphone noise reduction | |
| CN203761556U (en) | Double-microphone noise reduction earphone | |
| US10277750B2 (en) | Method and system for improving echo in hands-free call of mobile terminal | |
| CN102223428A (en) | Noise reducing method and mobile terminal | |
| CN201616843U (en) | Audio frequency device capable of lowering noise and noise reducing mobile phone | |
| CN105554664A (en) | Headset based sound processing method and apparatus, and headset | |
| CN201054780Y (en) | Automatic noise reduction earphone | |
| CN207744142U (en) | A kind of multi-functional bone conduction hearing aid system | |
| CN102238452A (en) | Method for actively resisting noises in hands-free earphone and hands-free earphone | |
| CN103634439A (en) | Noise reduction processing system | |
| US20090141906A1 (en) | Communication Headset Processing Multiple Audio Inputs | |
| CN102421049A (en) | Audio signal processing system and audiometric curve adjustment unit thereof | |
| CN203968327U (en) | A kind of exempt from extract carry out low coverage dialogue earphone | |
| CN201345681Y (en) | Terminal with the sound amplifying function | |
| CN208522979U (en) | A kind of audio frequency apparatus | |
| CN207884835U (en) | A kind of noise cancelling headphone based on Lightning interfaces | |
| CN208316970U (en) | earphone and communication system | |
| CN205195931U (en) | Headset | |
| CN111083250A (en) | Mobile terminal and noise reduction method thereof | |
| CN102469399A (en) | Noise-reduction hearing aid | |
| CN203151729U (en) | Multifunctional earphone | |
| CN105515682B (en) | The method and system realized transmitting using earphone interface, receive ultrasonic wave | |
| CN104038860A (en) | Non-removable close-distance voice listening method and headset |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20220116 |