CN202524497U - Converter for video signal formats - Google Patents
Converter for video signal formats Download PDFInfo
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- CN202524497U CN202524497U CN2012201964246U CN201220196424U CN202524497U CN 202524497 U CN202524497 U CN 202524497U CN 2012201964246 U CN2012201964246 U CN 2012201964246U CN 201220196424 U CN201220196424 U CN 201220196424U CN 202524497 U CN202524497 U CN 202524497U
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- high definition
- hdmi
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- sdi
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Abstract
The utility model provides a converter for video signal formats. The converter comprises a microprocessor contorl circuit, a high-definition SDI (Serial Digial Interface) decoding circuit, a HDMI (High-Definiction Multimedia Interface) encoding circuit, an HDMI interface driving circuit, at least one HDMI output interface and at least one high-definiction SDI electric signal input interface; the high-definiction SDI electric signal input interface, the high-definition SDI decoding circuit, the HDMI encoding circuit and the HDMI interface driving circuit are electrically connected with the HDMI output interface in sequence; and in addition, the microprocessor control circuit is respectively connected with the high-definition SDI decoding circuit, the HDMI encoding circuit and the HDMI interface driving circuit. Therefore, the transmission distance of video signals is prolonged, in addition, transmission losses of and strong electromagnetic interferences to the video signals are reduced, and thus, the application range of high-definition SDI video signals is enlarged.
Description
Technical field
The utility model relates to a kind of apparatus for processing of video signals, is specifically related to a kind of conversion equipment of video signal format.
Background technology
SDI (Serial Digital Interface, serial digital interface) is the interface that transmits each bit of data word and corresponding data in proper order through single passage.SDI is a widely used video transmission interface standard in broadcast television industry.
At present, in field of broadcast televisions, for further satisfying the requirement of people to the vision signal definition, the definition of vision signal changes to high definition from single-definition gradually.Accordingly, the SDI vision signal also develops into high definition SDI vision signal from SD SDI vision signal.Tradition SD SDI vision signal adopts coaxial cable to transmit, still, because the data volume of high definition SDI vision signal has reached more than 5 times of SD SDI vision signal; So; For high definition SDI vision signal,, can seriously reduce high definition SDI transmission of video signals distance if continue to adopt coaxial cable to transmit; Simultaneously; The loss of coaxial cable transmission high definition SDI transmission of video signals is big, also exists to receive the problem of electromagnetic interference, thereby has limited the range of application of high definition SDI vision signal.
The utility model content
Defective to the prior art existence; The utility model provides a kind of conversion equipment of video signal format, at first converts high definition SDI vision signal into high definition HDMI (High Definition Multimedia Interface, HDMI) vision signal; And then transmission high definition HDMI vision signal; So, prolonged the transmission of video signals distance, and; Reduce the transmission of video signals loss and received the strength problem of electromagnetic interference, thereby enlarged the range of application of high definition SDI vision signal.
The technical scheme that the utility model adopts is following:
The utility model provides a kind of conversion equipment of video signal format, comprising: microprocessor control circuit, high definition SDI decoding circuit, high definition HDMI coding circuit, HDMI interface driving circuit, at least one HDMI output interface and at least one high definition SDI signal of telecommunication input interface; Said high definition SDI signal of telecommunication input interface, said high definition SDI decoding circuit, said high definition HDMI coding circuit, said HDMI interface driving circuit are electrically connected with said HDMI output interface in order; And said microprocessor control circuit is electrically connected with said high definition SDI decoding circuit, said high definition HDMI coding circuit and said HDMI interface driving circuit respectively.
Preferably, also comprise: high definition SDI light signal-electrical signal conversion circuit; The input of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with high definition SDI light signal input interface, and the output of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with said high definition SDI signal of telecommunication input interface.
Preferably, said high definition SDI light signal-electrical signal conversion circuit also is electrically connected with said microprocessor control circuit.
Preferably, the quantity of said HDMI output interface is 2-10.
Preferably, the quantity of said HDMI output interface is 4.
Preferably, the quantity of said high definition SDI signal of telecommunication input interface is 2-10.
Preferably, the quantity of said high definition SDI signal of telecommunication input interface is 4.
Preferably, said microprocessor control circuit is DSP control chip or FPGA control chip.
The beneficial effect of the utility model is following:
The conversion equipment of the video signal format that the utility model provides at first converts high definition SDI vision signal into high definition HDMI vision signal, and then transmission high definition HDMI vision signal; And, adopting three pairs of differential lines to come transmission video signal for the vision signal of HDMI form, a pair of differential lines is come synchronous signal transmission; Rather than use coaxial cable transmission video signal; So, prolonged the transmission of video signals distance, and; Reduce the transmission of video signals loss and received the strength problem of electromagnetic interference, thereby enlarged the range of application of high definition SDI vision signal.
Description of drawings
The structural representation of the conversion equipment of the video signal format that Fig. 1 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 conversion equipment of video signal format, comprising: microprocessor control circuit, high definition SDI decoding circuit, high definition HDMI coding circuit, HDMI interface driving circuit, at least one HDMI output interface and at least one high definition SDI signal of telecommunication input interface; Said high definition SDI signal of telecommunication input interface, said high definition SDI decoding circuit, said high definition HDMI coding circuit, said HDMI interface driving circuit are electrically connected with said HDMI output interface in order; And said microprocessor control circuit is electrically connected with said high definition SDI decoding circuit, said high definition HDMI coding circuit and said HDMI interface driving circuit respectively.In addition, can also comprise: high definition SDI light signal-electrical signal conversion circuit; The input of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with high definition SDI light signal input interface, and the output of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with said high definition SDI signal of telecommunication input interface.Said high definition SDI light signal-electrical signal conversion circuit also is electrically connected with said microprocessor control circuit.Wherein, the quantity of the quantity of HDMI output interface and high definition SDI signal of telecommunication input interface is adjusted according to actual needs, and the quantity of HDMI output interface can be preferably 4 for 2-10; The quantity of high definition SDI signal of telecommunication input interface can be preferably 4 for 2-10.And in the utility model, microprocessor control circuit can be DSP control chip or FPGA control chip.
The operation principle of the conversion equipment of the video signal format that the utility model provides is:
(1) high definition SDI decoding circuit receives the high definition SDI signal of telecommunication, and the high definition SDI signal of telecommunication that receives is decoded, and is transferred to high definition HDMI coding circuit then;
Wherein, the high definition SDI signal of telecommunication can also can be the high definition SDI signal of telecommunication that is obtained by high definition SDI light signal-electrical signal conversion circuit conversion for the high definition SDI signal of telecommunication of directly importing.
(2) high definition HDMI coding circuit is encoded to the received signal, obtains the vision signal of HDMI form, and is transferred to the HDMI output interface through the HDMI interface driving circuit;
(3) vision signal of HDMI output interface output HDMI form.
Therefore, the conversion equipment of the video signal format that the utility model provides at first converts high definition SDI vision signal into high definition HDMI vision signal; And then transmission high definition HDMI vision signal, and, adopt three pairs of differential lines to come transmission video signal for the vision signal of HDMI form; A pair of differential lines is come synchronous signal transmission, rather than uses the coaxial cable transmission video signal, so; Prolonged the transmission of video signals distance; And, reduced the transmission of video signals loss and received the strength problem of electromagnetic interference, thereby enlarged the range of application of high definition SDI vision signal.
The above only is the preferred implementation of the 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 improvement and retouching, these improvement and retouching also should be looked the protection range of the utility model.
Claims (8)
1. the conversion equipment of a video signal format; It is characterized in that, comprising: microprocessor control circuit, high definition SDI decoding circuit, high definition HDMI coding circuit, HDMI interface driving circuit, at least one HDMI output interface and at least one high definition SDI signal of telecommunication input interface; Said high definition SDI signal of telecommunication input interface, said high definition SDI decoding circuit, said high definition HDMI coding circuit, said HDMI interface driving circuit are electrically connected with said HDMI output interface in order; And said microprocessor control circuit is electrically connected with said high definition SDI decoding circuit, said high definition HDMI coding circuit and said HDMI interface driving circuit respectively.
2. the conversion equipment of video signal format according to claim 1 is characterized in that, also comprises: high definition SDI light signal-electrical signal conversion circuit; The input of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with high definition SDI light signal input interface, and the output of said high definition SDI light signal-electrical signal conversion circuit is electrically connected with said high definition SDI signal of telecommunication input interface.
3. the conversion equipment of video signal format according to claim 2 is characterized in that, said high definition SDI light signal-electrical signal conversion circuit also is electrically connected with said microprocessor control circuit.
4. the conversion equipment of video signal format according to claim 1 is characterized in that, the quantity of said HDMI output interface is 2-10.
5. the conversion equipment of video signal format according to claim 4 is characterized in that, the quantity of said HDMI output interface is 4.
6. the conversion equipment of video signal format according to claim 1 is characterized in that, the quantity of said high definition SDI signal of telecommunication input interface is 2-10.
7. the conversion equipment of video signal format according to claim 6 is characterized in that, the quantity of said high definition SDI signal of telecommunication input interface is 4.
8. according to the conversion equipment of each described video signal format of claim 1-7, it is characterized in that said microprocessor control circuit is DSP control chip or FPGA control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201964246U CN202524497U (en) | 2012-05-02 | 2012-05-02 | Converter for video signal formats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201964246U CN202524497U (en) | 2012-05-02 | 2012-05-02 | Converter for video signal formats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524497U true CN202524497U (en) | 2012-11-07 |
Family
ID=47107421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201964246U Expired - Lifetime CN202524497U (en) | 2012-05-02 | 2012-05-02 | Converter for video signal formats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107094240A (en) * | 2017-06-05 | 2017-08-25 | 深圳市科比特航空科技有限公司 | A kind of video format conversion apparatus |
-
2012
- 2012-05-02 CN CN2012201964246U patent/CN202524497U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107094240A (en) * | 2017-06-05 | 2017-08-25 | 深圳市科比特航空科技有限公司 | A kind of video format conversion apparatus |
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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: 20121107 |