CN102111468A - Denoising calling mobile phone and method thereof - Google Patents
Denoising calling mobile phone and method thereof Download PDFInfo
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- CN102111468A CN102111468A CN2010106008206A CN201010600820A CN102111468A CN 102111468 A CN102111468 A CN 102111468A CN 2010106008206 A CN2010106008206 A CN 2010106008206A CN 201010600820 A CN201010600820 A CN 201010600820A CN 102111468 A CN102111468 A CN 102111468A
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Abstract
The invention discloses a denoising calling mobile phone and a denoising calling method thereof. The denoising calling mobile phone comprises a mobile phone body, wherein the two surfaces of the mobile phone body are provided with a front microphone and a back microphone respectively; the positions of the microphones are symmetrical about the mobile phone body; and a baseband chip is arranged in the mobile phone body, is connected with the front and back microphones respectively, and outputs waveforms obtained by subtracting sound waveforms of the back microphone from the sound waveforms of the front microphone. The method comprises the following steps that: the front microphone collects sounds to obtain first sound waveforms, the back microphone collects the sounds to obtain second sound waveforms, and the second sound waveforms are subtracted from the first sound waveforms to obtain denoised sound waveforms. In the denoising calling mobile phone and the denoising calling method thereof, environmental sound waveforms can be eliminated by utilizing the dual microphones, thereby achieving the effects of reducing environmental sounds, improving call quality and bringing convenience to a user.
Description
Technical field
The present invention relates to cell phone apparatus, particularly a kind of noise reduction push-to-talk handset and method thereof.
Background technology
Mobile phone is the invention of American I T giant Motorola Inc. the earliest, using the widest in the world at present is so-called second generation mobile phone (2G), based on the GSM standard in Europe and the CDMA of the U.S., also have the IDEN network formats of Motorola, the PDC that Japan Area uses etc. in addition.They all are digital standards, except can carrying out voice communication, can also receive and dispatch note, WAP (wireless application protocol) etc.In the China's Mainland and Taiwan the most universal with GSM, the CDMA mobile phone is also very popular.Present whole industry is in third generation mobile phone (3G) transition process.
Telephone keypad part mobile phone has also comprised more function such as PDA, game machine, MP3, camera, photography, recording, GPS, online except typical telephony feature, the oriented trend that has the PDA development of cell-phone function.The mouthpiece of phone, earpiece and corresponding microphone, receiver all are contained on the single handle.Being once called as and being mobile phone, portable, mobile telephone, is telephone terminal portable, that can move in a big way.
When using the conversation earphone to converse, owing to do not have the guidance quality of cell-phone conversation, so be subject to the influence of surrounding environment.Environmental noise is many to be existed at the many beargardens of people.The characteristics of environmental noise have following some: the direction complexity all can have similar environmental noise on all directions of direction collecting device; Frequency complexity, noise often contain each frequency of sound.
In view of this, those skilled in the art provide a kind of processing scheme of cutting down the noise reduction of wired conversation earphone at the problems referred to above.
Summary of the invention
The invention provides a kind of noise reduction push-to-talk handset and method thereof, overcome the difficulty of prior art, can utilize dual microphone to carry out the elimination of environment sound sound wave, thereby reached reduction environment sound, improve speech quality, user friendly effect.
The present invention adopts following technical scheme:
The invention provides a kind of noise reduction push-to-talk handset, comprise mobile phone body, the two sides of described mobile phone body is respectively equipped with front microphone and back side microphone, the position of described microphone is according to described mobile phone body symmetry, be provided with baseband chip in the described mobile phone body, described baseband chip connects described front microphone, back side microphone respectively, and the sound waveform of described baseband chip output front microphone deducts the waveform behind the microphone voice waveform of the back side.
Preferably, described mobile phone body is a smart mobile phone.
The present invention also provides a kind of noise reduction call method, adopt above-mentioned noise reduction push-to-talk handset, may further comprise the steps: the front microphone is collected sound and is obtained first sound waveform, back side microphone is collected sound and is obtained second sound waveform, and described first sound waveform deducts the sound waveform after second sound waveform obtains noise abatement.
Owing to adopted above-mentioned technology, compared with prior art, noise reduction push-to-talk handset of the present invention and method thereof can utilize dual microphone to carry out the elimination of environment sound sound wave, thereby have reached reduction environment sound, improve speech quality, user friendly effect.
Further specify the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the front schematic view of noise reduction push-to-talk handset of the present invention;
Fig. 2 is the schematic rear view of noise reduction push-to-talk handset of the present invention;
Fig. 3 is the waveform schematic diagram of user's one's voice in speech among the embodiment;
Fig. 4 is the waveform schematic diagram of ambient noise among the embodiment;
The waveform schematic diagram that Fig. 5 is superimposed for user's one's voice in speech among the embodiment and ambient noise;
Fig. 6 is the waveform schematic diagram of the sound heard by the other side at last among the embodiment.
Embodiment
Introduce a kind of specific embodiment of the present invention below by Fig. 1 to 6.
As illustrated in fig. 1 and 2, a kind of noise reduction push-to-talk handset of the present invention, comprise mobile phone body 1, the two sides of described mobile phone body 1 is respectively equipped with front microphone 2 and back side microphone 3, the position of described microphone is according to described mobile phone body 1 symmetry, be provided with baseband chip in the described mobile phone body 1, described baseband chip connects described front microphone 2, back side microphone 3 respectively, and the sound waveform of described baseband chip output front microphone 2 deducts the waveform behind back side microphone 3 sound waveforms.Described mobile phone body 1 is a smart mobile phone.
The present invention also provides a kind of noise reduction call method, may further comprise the steps: the front microphone is collected sound and is obtained first sound waveform, back side microphone is collected sound and is obtained second sound waveform, and described first sound waveform deducts the sound waveform after second sound waveform obtains noise abatement.
Actual operating position of the present invention is as follows:
Noise reduction push-to-talk handset of the present invention changes the single microphone design of original conversation earphone, and changes two microphones into, back to installation.Two microphones are worked simultaneously when beginning to converse.
Wherein, Fig. 3 is the oscillogram of user's one's voice in speech, and this is in fact to wish the sound heard by the other side.Fig. 4 is the audiograph of ambient noise.Fig. 5 has formed this oscillogram for user's one's voice in speech and two sound of ambient noise are superimposed, and is collected by front microphone 2.
Because two microphones are back to stacking, so, always there is one directly in the face of the speaker.Here suppose that this microphone received speaker's voice more, since distant from the speaker, so noise does not have (perhaps less) and noise mixing.Comparatively speaking, back to user's back side microphone 3, from distant, what collect is purer noise.
Characteristics based on environmental noise mentioned above, we can understand like this, the waveform of Fig. 5 is that the waveform by the waveform of Fig. 3 and Fig. 4 is formed by stacking, and then the waveform that deducts Fig. 4 by Fig. 5 just can obtain the waveform of Fig. 6, the just original waveform of the expression user one's voice in speech of Fig. 3.
In summary, owing to adopted above-mentioned technology, noise reduction push-to-talk handset of the present invention and method thereof can utilize dual microphone to carry out the elimination of environment sound sound wave, thereby have reached reduction environment sound, improve speech quality, user friendly effect.
Above-described embodiment only is used to illustrate technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implements according to this, can not only limit claim of the present invention with present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (3)
1. noise reduction push-to-talk handset, it is characterized in that: comprise mobile phone body (1), the two sides of described mobile phone body (1) is respectively equipped with front microphone (2) and back side microphone (3), the position of described microphone is according to described mobile phone body (1) symmetry, described mobile phone body is provided with baseband chip in (1), described baseband chip connects described front microphone (2), back side microphone (3) respectively, and the sound waveform of described baseband chip output front microphone (2) deducts the waveform behind back side microphone (3) sound waveform.
2. noise reduction push-to-talk handset as claimed in claim 1 is characterized in that: described mobile phone body (1) is a smart mobile phone.
3. noise reduction call method, adopt noise reduction push-to-talk handset as claimed in claim 1, it is characterized in that: may further comprise the steps: the front microphone is collected sound and is obtained first sound waveform, back side microphone is collected sound and is obtained second sound waveform, and described first sound waveform deducts the sound waveform after second sound waveform obtains noise abatement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010106008206A CN102111468A (en) | 2010-12-20 | 2010-12-20 | Denoising calling mobile phone and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106008206A CN102111468A (en) | 2010-12-20 | 2010-12-20 | Denoising calling mobile phone and method thereof |
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| CN102111468A true CN102111468A (en) | 2011-06-29 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800323A (en) * | 2012-06-25 | 2012-11-28 | 华为终端有限公司 | Method and device for reducing noises of voice of mobile terminal |
| CN102868961A (en) * | 2011-07-05 | 2013-01-09 | 富泰华工业（深圳）有限公司 | Handheld electronic device with function of hearing aid |
| CN103533489A (en) * | 2013-10-24 | 2014-01-22 | 安徽江淮汽车股份有限公司 | Vehicle-mounted noise reduction module |
| WO2014044064A1 (en) * | 2012-09-19 | 2014-03-27 | 惠州Tcl移动通信有限公司 | Method for controlling dual-microphone noise cancellation of mobile phone automatically and mobile phone |
| CN103971681A (en) * | 2014-04-24 | 2014-08-06 | 百度在线网络技术（北京）有限公司 | Voice recognition method and system |
| CN104902084A (en) * | 2015-05-18 | 2015-09-09 | 广东欧珀移动通信有限公司 | Intelligent conversation method, device and equipment |
| CN105575398A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Sound noise reduction method and sound noise reduction terminal |
| CN105719673A (en) * | 2016-01-25 | 2016-06-29 | 努比亚技术有限公司 | Terminal and recording processing method thereof |
| CN106101927A (en) * | 2016-06-29 | 2016-11-09 | 维沃移动通信有限公司 | A kind of acoustic signal processing method, chip and electronic equipment |
| CN110579353A (en) * | 2019-07-29 | 2019-12-17 | 华为技术有限公司 | Locked rotor detection method and system of lifting mechanism and electronic equipment |
| CN112017649A (en) * | 2020-09-02 | 2020-12-01 | 上海仙视电子科技有限公司 | Audio processing method and device, electronic equipment and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102868961A (en) * | 2011-07-05 | 2013-01-09 | 富泰华工业（深圳）有限公司 | Handheld electronic device with function of hearing aid |
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| WO2014044064A1 (en) * | 2012-09-19 | 2014-03-27 | 惠州Tcl移动通信有限公司 | Method for controlling dual-microphone noise cancellation of mobile phone automatically and mobile phone |
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| CN103971681A (en) * | 2014-04-24 | 2014-08-06 | 百度在线网络技术（北京）有限公司 | Voice recognition method and system |
| CN105575398A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Sound noise reduction method and sound noise reduction terminal |
| CN104902084A (en) * | 2015-05-18 | 2015-09-09 | 广东欧珀移动通信有限公司 | Intelligent conversation method, device and equipment |
| CN104902084B (en) * | 2015-05-18 | 2018-02-16 | 广东欧珀移动通信有限公司 | A kind of intelligent call method, apparatus and equipment |
| CN105719673A (en) * | 2016-01-25 | 2016-06-29 | 努比亚技术有限公司 | Terminal and recording processing method thereof |
| CN106101927A (en) * | 2016-06-29 | 2016-11-09 | 维沃移动通信有限公司 | A kind of acoustic signal processing method, chip and electronic equipment |
| CN110579353A (en) * | 2019-07-29 | 2019-12-17 | 华为技术有限公司 | Locked rotor detection method and system of lifting mechanism and electronic equipment |
| CN110579353B (en) * | 2019-07-29 | 2021-02-09 | 华为技术有限公司 | Locked rotor detection method and system of lifting mechanism and electronic equipment |
| CN112017649A (en) * | 2020-09-02 | 2020-12-01 | 上海仙视电子科技有限公司 | Audio processing method and device, electronic equipment and readable storage medium |
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Application publication date: 20110629 |