CN203675173U - Low call noise mobile phone - Google Patents
Low call noise mobile phone Download PDFInfo
- Publication number
- CN203675173U CN203675173U CN201320760102.4U CN201320760102U CN203675173U CN 203675173 U CN203675173 U CN 203675173U CN 201320760102 U CN201320760102 U CN 201320760102U CN 203675173 U CN203675173 U CN 203675173U
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- mobile phone
- handset shell
- microphone
- noise
- low call
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Abstract
Provided is a low call noise mobile phone, comprising a mobile phone housing and an internal noise processing module. The noise processing module is connected with a microphone through an A/D conversion chip. The low call noise mobile phone also comprises a touch screen embedded in a front end face of the mobile phone housing. On a middle part of the mobile phone housing which is on a lower side of the touch screen, a main microphone is disposed on the inner wall of the mobile phone housing. The mobile phone housing corresponding to the main microphone is provided with a hole. On an upper part of the rear end face of the mobile phone housing, two auxiliary microphones are horizontally disposed on the inner wall of the mobile phone housing. The mobile phone housing corresponding to the auxiliary microphones is provided with holes. The low call noise mobile phone can effectively form a plurality of sound spectrums related to events, so that the processing module can improve audio quality.
Description
Technical field
The utility model relates to a kind of mobile communication terminal, particularly relates to a kind of mobile communication terminal of voice communication.
Background technology
Present stage, voice call is still one of topmost function of mobile phone, but the background noise in call environment can be delivered to listener one side by microphone, cell phone mainboard obtains by A/D conversion chip the voice signal that microphone gathers, through noise processed module, but cannot eliminate background noise, have a strong impact on mobile phone communication quality.Background noise while how solving call still haves much room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of low call noise mobile phone, the technical problem of background noise while solving voice call.
Low call noise mobile phone of the present utility model, comprise handset shell and built-in noise processed module, noise processed module connects microphone by A/D conversion chip, also be included in the touch-screen of inlaying in the front end face of handset shell, it is characterized in that: at the handset shell middle part of touch-screen downside, main microphone is installed on handset shell inwall, on the handset shell of corresponding main microphone, offer through hole, on the rear end face top of handset shell, on handset shell inwall, be horizontally disposed with two secondary microphones, on the handset shell of corresponding secondary microphone, offer through hole.
Described secondary microphone is 2cm apart,
The front end face middle part of described handset shell, is fixedly installed high pitch microphone in the inner side of touch-screen.
The inner side, rear end face middle part of described handset shell is fixedly installed bass microphone.
Low call noise mobile phone of the present utility model, by increasing the microphone of mobile phone ad-hoc location, make in the conductive process of background noise, sound wave is affected by transmission medium and produces distortion, the processing of the elimination noise of process noise processed module, thereby ambient noise when user is conversed significantly reduces, make call more clear.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the low call noise mobile phone of the utility model.
Embodiment
As shown in Figure 1, in the present embodiment, comprise handset shell 01, in the front end face of handset shell 01, be inlaid with touch-screen 02, at handset shell 01 middle part of touch-screen 02 downside, main microphone 03 is installed on handset shell 01 inwall, on the handset shell 01 of corresponding main microphone 03, offer through hole.
On the rear end face top of handset shell 01, on handset shell 01 inwall, be horizontally disposed with two secondary microphones 04, secondary microphone 04, at a distance of 2cm, offers through hole on the handset shell 01 of corresponding secondary microphone 04.
At the front end face middle part of handset shell 01, be fixedly installed high pitch microphone 06 in the inner side of touch-screen 02, be fixedly installed bass microphone 05 in the inner side, rear end face middle part of handset shell 01.
In practical application, realize voice signal Si road synchronous acquisition.Main microphone and secondary microphone receive background noise by different approach respectively, the signal characteristic that main Mike gathers is take the frequency intensity of people's acoustical signal as main, the signal characteristic people acoustical signal of secondary microphone collection and the frequency intensity of ambient noise signal do not have advantage to distinguish, the signal characteristic of high pitch microphone collection is take the high frequency spectrum that can penetrate glass material as main, low frequency collection is suppressed, the signal characteristic of bass microphone collection is take the low-frequency spectra that can penetrate handset shell 01 as main, four kinds of frequency spectrums of the same source signal of just free correlation are so just there are, existing noise processed module can be processed formation difference wherein completely, and eliminate as far as possible background noise energy.By experiment, the spectrum energy of background noise can be reduced to 25% of initial value, and speech quality obviously improves.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection range of the utility model claims.
Claims (4)
1. one kind low call noise mobile phone, comprise handset shell (01) and built-in noise processed module, noise processed module connects microphone by A/D conversion chip, also be included in the touch-screen (02) of inlaying in the front end face of handset shell (01), it is characterized in that: at handset shell (01) middle part of touch-screen (02) downside, on handset shell (01) inwall, main microphone (03) is installed, on the handset shell (01) of corresponding main microphone (03), offer through hole, on the rear end face top of handset shell (01), on handset shell (01) inwall, be horizontally disposed with two secondary microphones (04), on the handset shell (01) of corresponding secondary microphone (04), offer through hole.
2. low call noise mobile phone according to claim 1, is characterized in that: described secondary microphone (04) is 2cm apart,
3. low call noise mobile phone according to claim 1 and 2, is characterized in that: the front end face middle part of described handset shell (01), is fixedly installed high pitch microphone (06) in the inner side of touch-screen (02).
4. low call noise mobile phone according to claim 3, is characterized in that: the inner side, rear end face middle part of described handset shell (01) is fixedly installed bass microphone (05).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760102.4U CN203675173U (en) | 2013-11-26 | 2013-11-26 | Low call noise mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760102.4U CN203675173U (en) | 2013-11-26 | 2013-11-26 | Low call noise mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203675173U true CN203675173U (en) | 2014-06-25 |
Family
ID=50971418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320760102.4U Expired - Fee Related CN203675173U (en) | 2013-11-26 | 2013-11-26 | Low call noise mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203675173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462763A (en) * | 2017-02-22 | 2018-08-28 | 南昌黑鲨科技有限公司 | Noise reduction terminal and noise-reduction method |
| CN113973141A (en) * | 2020-07-22 | 2022-01-25 | 华为技术有限公司 | Protective shell, signal processing method, mobile device and electronic device |
-
2013
- 2013-11-26 CN CN201320760102.4U patent/CN203675173U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462763A (en) * | 2017-02-22 | 2018-08-28 | 南昌黑鲨科技有限公司 | Noise reduction terminal and noise-reduction method |
| CN108462763B (en) * | 2017-02-22 | 2023-08-29 | 南昌黑鲨科技有限公司 | Noise reduction terminal and noise reduction method |
| CN113973141A (en) * | 2020-07-22 | 2022-01-25 | 华为技术有限公司 | Protective shell, signal processing method, mobile device and electronic device |
| CN113973141B (en) * | 2020-07-22 | 2023-03-28 | 华为技术有限公司 | Protective shell, signal processing method, mobile device and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140625 Termination date: 20211126 |