CN201307911Y - A multi-camera circuit and a mobile terminal - Google Patents
A multi-camera circuit and a mobile terminal Download PDFInfo
- Publication number
- CN201307911Y CN201307911Y CNU2008202120493U CN200820212049U CN201307911Y CN 201307911 Y CN201307911 Y CN 201307911Y CN U2008202120493 U CNU2008202120493 U CN U2008202120493U CN 200820212049 U CN200820212049 U CN 200820212049U CN 201307911 Y CN201307911 Y CN 201307911Y
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Abstract
The utility model is applicable to electronic field and provides a multi-camera circuit and a mobile terminal; the multi-camera circuit comprises a back-end processor, multiple cameras and a power supply module used for supplying power for multiple cameras; the camera interface of the back-end processor is respectively connected with the video signal ends of the cameras; the control end of the back-end processor is respectively connected with the control ends of multiple cameras; the power supply control end of the back-end processor is connected with the power supply module. In the utility model, the back-end processor controls the work states of multiple cameras and solves the matching problem of multiple cameras and the camera interface; the analog switch method in prior art used for solving the matching problem is replaced; as analog switch is not adopted in the utility model, the multi-camera circuit and the mobile terminal have the characteristics of low cost and high image quality.
Description
Technical field
The utility model belongs to electronic applications, relates in particular to a kind of multi-cam circuit and portable terminal.
Background technology
Along with popularizing and the demand of video telephone of 3G network, more and more hardware configuration that need to adopt dual camera or multi-cam, but common back-end processor has only a utilizing camera interface, so now generally be to adopt the method that analog switch switches to solve a plurality of cameras and the problem that utilizing camera interface mates, prior art scheme block diagram as shown in Figure 1, power module 104 is first camera 102 and 103 power supplies of second camera, first camera 102 and second camera 103 begin to gather video image, and vision signal is sent to the input of analog switch 105 respectively by its vision signal end, analog switch 105 is selected one tunnel vision signal from the two-path video signal of first camera 102 and 103 transmissions of second camera, and sends to the utilizing camera interface of back-end processor 101 by its output.
But there is following defective in prior art:
1, need to increase extra device, increase product cost, get over for a long time when camera quantity, its device that need increase is just many more, and cost is also just high more.
2, vision signal has in various degree interference and decay through behind the analog switch, influences image quality.
The utility model content
The purpose of this utility model is to provide a kind of multi-cam circuit, is intended to solve the problem that existing multi-cam circuit exists cost height and image quality difference.
The utility model is to realize like this, a kind of multi-cam circuit, it comprises back-end processor, a plurality of cameras and be the power module of described a plurality of camera power supply, described back-end processor has utilizing camera interface, control end and power control terminal, described a plurality of camera all has vision signal end and control end, the utilizing camera interface of described back-end processor connects the vision signal end of described a plurality of cameras respectively, the control end of described back-end processor connects the control end of described a plurality of cameras respectively, and the power control terminal of described back-end processor connects described power module.
Another purpose of the present utility model is to provide a kind of portable terminal that comprises above-mentioned multi-cam circuit.
In the utility model, the operating state that back-end processor is controlled a plurality of cameras solves a plurality of cameras and the problem that utilizing camera interface mates, having substituted prior art adopts the mode of analog switch to solve this problem, the utility model is because no longer adopt analog switch, so have the low and good characteristics of image quality of cost.
Description of drawings
Fig. 1 is the structure chart of the multi-cam circuit that provides of prior art;
Fig. 2 is the structure chart of the multi-cam circuit that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 2 shows the structure of the multi-cam circuit that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model.
The multi-cam circuit comprises back-end processor 101, first camera 102, second camera 103 and be the power module 104 of each camera power supply, back-end processor 101 has utilizing camera interface, control end and power control terminal, first camera 102 and second camera 103 all have vision signal end and control end, the utilizing camera interface of back-end processor 101 connects the vision signal end of first camera 102 and second camera 103 respectively, as the utility model one embodiment, utilizing camera interface comprises 8 data-signal ends, 2 clock signal terminals, 2 synchronous sequence signal ends, the vision signal end of each camera also correspondingly comprises 8 data-signal ends, 2 clock signal terminals, 2 synchronous sequence signal ends, the data-signal end of utilizing camera interface is connected with the data-signal end of first camera 102 with second camera 103 by data signal line simultaneously, the clock signal terminal of utilizing camera interface is connected with the clock signal terminal of first camera 102 and second camera 103 by clock cable simultaneously, the synchronous sequence signal end of utilizing camera interface is connected with the synchronous sequence signal end of first camera 102 with second camera 103 by the synchronous sequence signal line simultaneously, the control end of back-end processor 101 connects the control end of first camera 102 and second camera 103 respectively, and the power control terminal of back-end processor 101 connects power module 104.
Its operation principle is:
Back-end processor 101 sends power control signal by its power control terminal and gives power module 104, make power module 104 be in non operating state, first camera 102 and second camera 103 also are in non operating state, and back-end processor 101 also sends the control end that the Opportunity awaiting control for linear signal is given first camera 102 and second camera 103 respectively by its control end.
Then, back-end processor 101 sends power control signal by its power control terminal and gives power module 104, make power module 104 in running order, and win camera 102 and second camera 103 are powered on simultaneously, first camera 102 and second camera 103 all are in holding state.
Then, needs according to the user, back-end processor 101 sends the control end of working control signal to the camera of customer requirements work by its control end, make in the win camera 102 or second camera 103 any one in running order, in running order camera begins to gather video image, simultaneously, back-end processor 101 sends the source clock signal by first clock signal terminal of its utilizing camera interface to first clock signal terminal of camera, in running order camera sends to data-signal by its 8 data-signal ends 8 data-signal ends of the utilizing camera interface of back-end processor 101 respectively, pixel clock signal is sent to the second clock signal end of the utilizing camera interface of back-end processor 101 by its second clock signal end, and 2 synchronous sequence signal ends that synchronous sequence signal sent to the utilizing camera interface of back-end processor 101 by its 2 synchronous sequence signal ends, above-mentioned data-signal, clock signal and synchronous sequence signal constitute vision signal together, and 101 pairs of these vision signals of back-end processor are handled.
The multi-cam circuit that the utility model embodiment provides can be applied in the portable terminal of any class, any series.
In the utility model embodiment, the operating state that back-end processor is controlled a plurality of cameras solves a plurality of cameras and the problem that utilizing camera interface mates, having substituted prior art adopts the mode of analog switch to solve this problem, the utility model is because no longer adopt analog switch, so have the low and good characteristics of image quality of cost.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1, a kind of multi-cam circuit, it comprises back-end processor, a plurality of camera and is the power module of described a plurality of cameras power supplies, it is characterized in that, described back-end processor has utilizing camera interface, control end and power control terminal, described a plurality of camera all has vision signal end and control end, the utilizing camera interface of described back-end processor connects the vision signal end of described a plurality of cameras respectively, the control end of described back-end processor connects the control end of described a plurality of cameras respectively, and the power control terminal of described back-end processor connects described power module.
2, multi-cam circuit as claimed in claim 1 is characterized in that, described utilizing camera interface comprises data-signal end, clock signal terminal and synchronous sequence signal end.
3, multi-cam circuit as claimed in claim 2 is characterized in that, the vision signal end of described camera comprises data-signal end, clock signal terminal and synchronous sequence signal end.
4, multi-cam circuit as claimed in claim 3 is characterized in that, the data-signal end of described utilizing camera interface is connected with the data-signal end of described camera by data signal line.
5, multi-cam circuit as claimed in claim 3 is characterized in that, the clock signal terminal of described utilizing camera interface is connected with the clock signal terminal of described camera by clock cable.
6, multi-cam circuit as claimed in claim 3 is characterized in that, the synchronous sequence signal end of described utilizing camera interface is connected with the synchronous sequence signal end of described camera by the synchronous sequence signal line.
7, a kind of portable terminal that comprises the multi-cam circuit is characterized in that, the multi-cam circuit of described portable terminal is each described multi-cam circuit of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202120493U CN201307911Y (en) | 2008-09-22 | 2008-09-22 | A multi-camera circuit and a mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202120493U CN201307911Y (en) | 2008-09-22 | 2008-09-22 | A multi-camera circuit and a mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307911Y true CN201307911Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202120493U Expired - Lifetime CN201307911Y (en) | 2008-09-22 | 2008-09-22 | A multi-camera circuit and a mobile terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN201307911Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088643A1 (en) * | 2010-01-22 | 2011-07-28 | 中兴通讯股份有限公司 | Control method and apparatus for master-slave mode dual cameras of wireless terminal |
| CN102480592A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Double-camera control circuit and double-camera mobile terminal |
| CN103716597A (en) * | 2013-12-07 | 2014-04-09 | 苏州斯普锐智能系统有限公司 | Synchronous multiplexing system comprising single port and multiple imaging modules and synchronous multiplexing method |
| CN109995989A (en) * | 2017-12-30 | 2019-07-09 | 陈啸 | A kind of camera shooting head control circuit |
| CN112751995A (en) * | 2019-10-30 | 2021-05-04 | 维沃移动通信有限公司 | Camera module and electronic equipment |
-
2008
- 2008-09-22 CN CNU2008202120493U patent/CN201307911Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088643A1 (en) * | 2010-01-22 | 2011-07-28 | 中兴通讯股份有限公司 | Control method and apparatus for master-slave mode dual cameras of wireless terminal |
| CN101827219B (en) * | 2010-01-22 | 2014-07-16 | 中兴通讯股份有限公司 | Method and device for controlling two cameras in master/slave mode in wireless terminal |
| CN102480592A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Double-camera control circuit and double-camera mobile terminal |
| CN103716597A (en) * | 2013-12-07 | 2014-04-09 | 苏州斯普锐智能系统有限公司 | Synchronous multiplexing system comprising single port and multiple imaging modules and synchronous multiplexing method |
| CN109995989A (en) * | 2017-12-30 | 2019-07-09 | 陈啸 | A kind of camera shooting head control circuit |
| CN112751995A (en) * | 2019-10-30 | 2021-05-04 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| US12022177B2 (en) | 2019-10-30 | 2024-06-25 | Vivo Mobile Communication Co., Ltd. | Camera module with multi-camera switching and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |