CN202798859U - Mobile handheld terminal - Google Patents
Mobile handheld terminal Download PDFInfo
- Publication number
- CN202798859U CN202798859U CN201220294015.XU CN201220294015U CN202798859U CN 202798859 U CN202798859 U CN 202798859U CN 201220294015 U CN201220294015 U CN 201220294015U CN 202798859 U CN202798859 U CN 202798859U
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- China
- Prior art keywords
- microphone
- handheld terminal
- mobile handheld
- processing unit
- central processing
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- Expired - Fee Related
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Abstract
The utility model provides a mobile handheld terminal, which comprises a shell, a circuit board arranged inside the shell, a main microphone and an auxiliary microphone, wherein the circuit board comprises a central processing unit and a noise reduction chip electrically connected with the central processing unit; a speaker is arranged on the surface of the shell; the main microphone and the auxiliary microphone are both electrically connected with the noise reduction chip; the main microphone is arranged on the surface of the shell close to the speaker; and the auxiliary microphone is arranged on the surface of the shell far away from the speaker. Therefore, a strong multi-media processing ability is provided; an external video source can be accessed; and in addition, through the arrangement of the main microphone and the auxiliary microphone, the field noise processing ability can be effectively improved, and thus the conversation quality of users can be improved.
Description
Technical field
The utility model relates to the mobile communication technology field, is specifically related to a kind of mobile handheld terminal.
Background technology
Existing industrial moving terminal usually can be subject to the impact of on-site noise when carrying out voice communication, thereby has reduced speech quality.And video section is only supported the camera that carries, can't play external video source, thereby also limit user's use.
The utility model content
For the defective that prior art exists, the utility model provides a kind of mobile handheld terminal, has stronger multimedia processing capability, can access external video source; And, have the disposal ability of stronger on-site noise, thereby improved user's speech quality.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of mobile handheld terminal, comprising: housing and the circuit board that is installed in described enclosure interior; Described circuit board comprises: central processing unit and the noise reduction chip that is electrically connected with described central processing unit; The surface of described housing is provided with microphone; Also comprise: main microphone and auxiliary microphone; Described main microphone and described auxiliary microphone all are electrically connected with described noise reduction chip, and described main microphone is arranged on the surface near the described housing of described microphone, and described auxiliary microphone is arranged on the surface away from the described housing of described microphone.
Preferably, described housing comprises upper shell and the lower house integrally formed with described upper shell; Described upper shell is the upper shell that display screen is installed; Described microphone is arranged on the bottom of described upper shell.
Preferably, described main microphone is arranged on the bottom of described upper shell, and described auxiliary microphone is arranged on the top of described lower house.
Preferably, also be provided with earphone interface and/or built-in receiver and/or outgoing loudspeaker on the surface of described housing; Described earphone interface, described built-in receiver and the outgoing loudspeaker of being connected are connected with described central processing unit respectively.
Preferably, described circuit board also comprises: encoder and analog to digital conversion circuit; The output of analog-digital conversion circuit as described is electrically connected with the input of described encoder, and the output of described encoder is electrically connected with the input of described central processing unit; Also be provided with the video equipment input interface at described surface of shell; The output of described video equipment input interface is electrically connected with the input of analog-digital conversion circuit as described.
Preferably, described encoder is the H264 encoder.
Preferably, described central processing unit is FPGA or DSP or CPU.
The beneficial effects of the utility model are as follows:
The mobile handheld terminal that the utility model provides has stronger multimedia processing capability, can access external video source; And, by main microphone and auxiliary microphone are set, can effectively improve the disposal ability of on-site noise, thereby improve user's speech quality.
Description of drawings
The structural representation of the mobile handheld terminal that Fig. 1 provides for the utility model;
The front view of the mobile handheld terminal that Fig. 2 provides for the utility model;
The rearview of the mobile handheld terminal that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in Figure 1, the utility model provides a kind of mobile handheld terminal, comprising: housing and the circuit board that is installed in described enclosure interior; Described circuit board comprises: central processing unit and the noise reduction chip that is electrically connected with described central processing unit; The surface of described housing is provided with microphone; Also comprise: main microphone and auxiliary microphone; Described main microphone and described auxiliary microphone all are electrically connected with described noise reduction chip, and described main microphone is arranged on the surface near the described housing of described microphone, and described auxiliary microphone is arranged on the surface away from the described housing of described microphone.Wherein, central processing unit can be FPGA or DSP or CPU.
Wherein, main microphone is arranged on the surface near the described housing of described microphone, and a kind of specific implementation that described auxiliary microphone is arranged on away from the surface of the described housing of described microphone is: housing comprises upper shell and the lower house integrally formed with described upper shell; Described upper shell is the upper shell that display screen is installed; Described microphone is arranged on the bottom of described upper shell.Then, main microphone is arranged on the bottom of described upper shell, and described auxiliary microphone is arranged on the top of described lower house.In addition, in the utility model, also be provided with earphone interface and/or built-in receiver and/or outgoing loudspeaker on the surface of described housing; Described earphone interface, described built-in receiver and the outgoing loudspeaker of being connected are connected with described central processing unit respectively.
The mobile handheld terminal noise treatment flow process that the utility model provides is specially:
According to the type of the physical equipment of starting terminal, central processing unit is taked corresponding noise reduction mode, realizes the Optimum Matching of intelligent noise reduction mode, and then reaches the noise reduction purpose; Wherein, physical equipment comprises: earphone interface, built-in receiver and outgoing loudspeaker;
In addition, CPU connects two microphones simultaneously, that is: main microphone and auxiliary microphone, and, main microphone and auxiliary microphone are arranged on the diverse location of housing, concrete set-up mode is: main microphone on-mike, and auxiliary microphone is away from microphone, so, when main microphone receives stronger voice signal, and the voice signal that auxiliary microphone receives thinks that then the voice signal that main microphone receives is on-the-spot conversation sound when weak; And the voice signal intensity that receives when main microphone and auxiliary microphone thinks that then this voice signal is background noise when suitable, need to carry out denoising Processing.
The external video source function of handheld terminal realizes by following structure: circuit board also comprises: encoder and analog to digital conversion circuit; The output of analog-digital conversion circuit as described is electrically connected with the input of described encoder, and the output of described encoder is electrically connected with the input of described central processing unit; Also be provided with the video equipment input interface at described surface of shell; The output of described video equipment input interface is electrically connected with the input of analog-digital conversion circuit as described.Wherein, encoder can be the H264 encoder.When the output interface of external video capture device and video equipment input interface of the present utility model do not mate, can realize docking of video capture device and mobile handheld terminal by the video adapting head.
The flow process that the mobile handheld terminal that the utility model provides receives external video source is specially:
External video source is transferred to analog to digital conversion circuit with the analog video signal that collects, and after analog to digital conversion circuit is converted to digital video signal with analog video signal, is transferred to encoder, is transferred to CPU behind the encoded device coding, plays this vision signal by CPU.
Therefore, the mobile handheld terminal that the utility model provides has stronger multimedia processing capability, can access external video source; And, by main microphone and auxiliary microphone are set, can effectively improve the disposal ability of on-site noise, thereby improve user's speech quality.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.
Claims (7)
1. a mobile handheld terminal is characterized in that, comprising: housing and the circuit board that is installed in described enclosure interior; Described circuit board comprises: central processing unit and the noise reduction chip that is electrically connected with described central processing unit; The surface of described housing is provided with microphone; Also comprise: main microphone and auxiliary microphone; Described main microphone and described auxiliary microphone all are electrically connected with described noise reduction chip, and described main microphone is arranged on the surface near the described housing of described microphone, and described auxiliary microphone is arranged on the surface away from the described housing of described microphone.
2. mobile handheld terminal according to claim 1 is characterized in that, described housing comprises upper shell and the lower house integrally formed with described upper shell; Described upper shell is the upper shell that display screen is installed; Described microphone is arranged on the bottom of described upper shell.
3. mobile handheld terminal according to claim 2 is characterized in that, described main microphone is arranged on the bottom of described upper shell, and described auxiliary microphone is arranged on the top of described lower house.
4. mobile handheld terminal according to claim 1 is characterized in that, also is provided with earphone interface and/or built-in receiver and/or outgoing loudspeaker on the surface of described housing; Described earphone interface, described built-in receiver and the outgoing loudspeaker of being connected are connected with described central processing unit respectively.
5. mobile handheld terminal according to claim 1 is characterized in that, described circuit board also comprises: encoder and analog to digital conversion circuit; The output of analog-digital conversion circuit as described is electrically connected with the input of described encoder, and the output of described encoder is electrically connected with the input of described central processing unit; Also be provided with the video equipment input interface at described surface of shell; The output of described video equipment input interface is electrically connected with the input of analog-digital conversion circuit as described.
6. mobile handheld terminal according to claim 5 is characterized in that, described encoder is the H264 encoder.
7. each described mobile handheld terminal is characterized in that according to claim 1-6, and described central processing unit is FPGA or DSP or CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220294015.XU CN202798859U (en) | 2012-06-21 | 2012-06-21 | Mobile handheld terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220294015.XU CN202798859U (en) | 2012-06-21 | 2012-06-21 | Mobile handheld terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798859U true CN202798859U (en) | 2013-03-13 |
Family
ID=47826028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220294015.XU Expired - Fee Related CN202798859U (en) | 2012-06-21 | 2012-06-21 | Mobile handheld terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135201A1 (en) * | 2014-03-14 | 2015-09-17 | 华为终端有限公司 | Dual-microphone earphone and noise reduction processing method for audio signal in call |
-
2012
- 2012-06-21 CN CN201220294015.XU patent/CN202798859U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135201A1 (en) * | 2014-03-14 | 2015-09-17 | 华为终端有限公司 | Dual-microphone earphone and noise reduction processing method for audio signal in call |
| CN105230042A (en) * | 2014-03-14 | 2016-01-06 | 华为终端有限公司 | The denoise processing method of two microphones earphone and call sound intermediate frequency signal |
| US9866947B2 (en) | 2014-03-14 | 2018-01-09 | Huawei Device Co., Ltd. | Dual-microphone headset and noise reduction processing method for audio signal in call |
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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 |
Granted publication date: 20130313 Termination date: 20140621 |
|
| EXPY | Termination of patent right or utility model |