CN202374368U - Conversion device for serial digital interface (SDI) composite audio and video signal - Google Patents
Conversion device for serial digital interface (SDI) composite audio and video signal Download PDFInfo
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- CN202374368U CN202374368U CN2011205464786U CN201120546478U CN202374368U CN 202374368 U CN202374368 U CN 202374368U CN 2011205464786 U CN2011205464786 U CN 2011205464786U CN 201120546478 U CN201120546478 U CN 201120546478U CN 202374368 U CN202374368 U CN 202374368U
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- composite audio
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Abstract
The utility model relates to a conversion device for a serial digital interface (SDI) composite audio and video signal. A receiving unit receives a serial SDI composite audio and video signal. A processor unit converts the SDI composite audio and video signal into a multi-path parallel signal in a high-definition multimedia interface (HDMI) format. An output unit outputs the SDI composite audio and video signal in form of multi-path parallel signal in the HDMI formats. According to the conversion device for the SDI composite audio and video signal, the SDI composite audio and video signal for long-distance transmission is restored to the multi-path parallel signal in the HDMI format for output, so that the long-distance transmission of the audio and video signal is realized, and a video effect is ensured.
Description
Technical field
The utility model relates to a kind of conversion equipment of composite audio vision signal, relates in particular to a kind of conversion equipment of SDI composite audio vision signal.
Background technology
The AV signal transmission is divided into analog signal transmission and digital data transmission, and analog signal transmission has following shortcoming: 1 transmission system is complicated, 2 poor anti jamming capability, and 3 can't realize that multiple spot sends multiple spot and receives.Prior art adopts the digital signal of digital signal to carry out the AV signal transmission more; Common mode has: DVI (Digital Video Interface; Digital visual interface is called for short " DVI "), internet transmission, HDMI, DP (DISPLAY PORT is called for short " DP ") interface.In the prior art, DVI, HDMI, DP interface are point-to-point direct transmission, and transmission range is short, and simultaneously, DVI can not transmitting audio signal; The internet transmission has time-delay, need compress as transmitting high-definition video signal, and image detail has loss.Usually in transmission course, directly adopt transmission HDMI AV signal in the prior art, influenced transmission range and image effect.If compound HDMI AV signal is changed, convert SDI composite audio vision signal to and transmit, after the end of transmission, need convert SDI composite audio vision signal to the HDMI AV signal.Prior art lacks such processing procedure for the transmission of HDMI AV signal.
The utility model content
The technical problem that the utility model solves is: make up a kind of conversion equipment of SDI composite audio vision signal, overcome the technical problem of prior art AV signal transmission range weak point and image effect difference.
The technical scheme of the utility model is: the conversion equipment that makes up a kind of SDI composite audio vision signal; Comprise the receiving element that receives SDI composite audio vision signal, the AV signal that said receiving element is received carries out the processor unit of conversion process, the output unit of output HDMI composite audio vision signal; Said receiving element receives the SDI composite audio vision signal of serial; Said processor unit converts SDI composite audio vision signal the multi-path parallel signal of HDMI form to, and said output unit is with the multi-path parallel signal output composite audio vision signal of HDMI form.
The further technical scheme of the utility model is: said conversion equipment also comprises the photoelectric conversion unit that light signal is converted into the signal of telecommunication.
The further technical scheme of the utility model is: said processor unit also comprises the scan module that carries out vision signal scanning.
The further technical scheme of the utility model is: said processor unit comprises the descrambling module that signal is carried out descrambling.
The further technical scheme of the utility model is: said conversion equipment comprises that also USB interface changes the USB interface change-over circuit of UART interface.
The further technical scheme of the utility model is: said conversion equipment also comprises configuration and monitors the I2C interface circuit of said receiving element.
The further technical scheme of the utility model is: said processor unit also comprises the scan module that carries out vision signal scanning.
The further technical scheme of the utility model is: said processor unit also comprises the voice data extraction module of search extraction packets of audio data.
The technique effect of the utility model is: the conversion equipment of a kind of SDI composite audio of the utility model vision signal; Said receiving element receives the SDI composite audio vision signal of serial; Said processor unit converts SDI composite audio vision signal the multi-path parallel signal of HDMI form to, and said output unit is with the multi-path parallel signal output composite audio vision signal of HDMI form.The conversion equipment of a kind of SDI composite audio of the utility model vision signal; The SDI composite audio vision signal that will be used for long Distance Transmission is reduced into the multi-path parallel signal output of HDMI form; Both realize the long Distance Transmission of AV signal, guaranteed video effect again.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model processor unit.
Embodiment
Below in conjunction with specific embodiment, the utility model technical scheme is further specified.
Shown in Fig. 1; The embodiment of the utility model is: the conversion equipment that makes up a kind of SDI composite audio vision signal; Comprise the receiving element 1 that receives SDI composite audio vision signal, the AV signal that said receiving element 1 is received carries out single 3 yuan of the output of processor unit 2, the output HDMI composite audio vision signal of conversion process; Said receiving element 1 receives and encircles out the SDI composite audio vision signal of serial, receives and encircles out the signal that is about to receive simultaneously and export, in order to realize the receiving terminal cascade.Said processor unit 2 converts SDI composite audio vision signal the multi-path parallel signal of HDMI form to, and said output unit 3 is with the multi-path parallel signal output composite audio vision signal of HDMI form.
Shown in Fig. 1, the practical implementation process of the utility model is: said receiving element 1 receives the SDI composite audio vision signal of serial.In the specific embodiment, said receiving element 1 receives SDI serial complex tone vision signal, issues processor unit 2 with the 4:1LVDS level signal, simultaneously the signal of receiving is sent to realize the receiving terminal cascade, and said receiving element 1 receives application-specific integrated circuit (ASIC) for SDI.Said output unit 3 is with the multi-path parallel signal output composite audio vision signal of HDMI form.
As shown in Figure 1; Preferred implementation of the present invention is: said conversion equipment also comprises the photoelectric conversion unit 4 that light signal is converted into the signal of telecommunication; Photoelectric conversion unit 4 receives the light signal of Optical Fiber Transmission, will send to receiving element 1 then with the SDI composite audio vision signal of optical signal transmission and receive.
As shown in Figure 2, preferred implementation of the present invention is: said processor unit also comprises the receiver module 21 that receives the 4:1LVDS level signal, the scan module 22 that carries out vision signal scanning.Scan module 22 scan video signals, the video signal format that obtains importing.Said processor unit 2 also comprises the descrambling module 22 that signal is carried out descrambling, and the vision signal of 22 pairs of scramblings of descrambling module is carried out descrambling.
Preferred implementation of the present invention is: said conversion equipment comprises that also USB interface changes the USB interface change-over circuit (not shown) of UART interface; The USB interface change-over circuit is realized the bridge joint between USB interface and the UART interface; Therefore this machine can pass through the USB interface telecommunication with main frame, realizes Long-distance Control.
As shown in Figure 2, preferred implementation of the present invention is: said processor unit also comprises the scan module 24 that carries out vision signal scanning, and whether the vision signal of debug circuit 24 inspection parties transmission is wrong.Said processor unit 2 also comprises the EDH circuit 25 that carries out the EDH packet inspection, if be input as SD signal EDH circuit then extract its EDH packet.Said processor unit 2 also comprises the SMPTE module 26 of checking and extracting the SMPTE352 packet in the signal.Said processor unit 2 also comprises the voice data extraction module 27 of search extraction packets of audio data.27 search of voice data extraction module are extracted packets of audio data and are sent according to the I2S bus protocol.
The technique effect of the utility model is: the conversion equipment of a kind of SDI composite audio of the utility model vision signal; Said receiving element 1 receives the SDI composite audio vision signal of serial; Said processor unit 2 converts SDI composite audio vision signal the multi-path parallel signal of HDMI form to, and said output unit 3 is with the multi-path parallel signal output composite audio vision signal of HDMI form.The conversion equipment of a kind of SDI composite audio of the utility model vision signal; The SDI composite audio vision signal that will be used for long Distance Transmission is reduced into the multi-path parallel signal output of HDMI form; Both realize the long Distance Transmission of AV signal, guaranteed video effect again.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.
Claims (8)
1. the conversion equipment of a SDI composite audio vision signal; It is characterized in that; Comprise the receiving element that receives SDI composite audio vision signal, the AV signal that said receiving element is received carries out the processor unit of conversion process, the output unit of output HDMI composite audio vision signal; Said receiving element receives the SDI composite audio vision signal of serial; Said processor unit converts SDI composite audio vision signal the multi-path parallel signal of HDMI form to, and said output unit is with the multi-path parallel signal output composite audio vision signal of HDMI form.
2. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that said conversion equipment also comprises the photoelectric conversion unit that light signal is converted into the signal of telecommunication.
3. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that, said processor unit also comprises the scan module that carries out vision signal scanning.
4. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that said processor unit comprises the descrambling module that signal is carried out descrambling.
5. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that, said conversion equipment comprises that also USB interface changes the USB interface change-over circuit of UART interface.
6. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that, said conversion equipment also comprises configuration and monitors the I2C interface circuit of said receiving element.
7. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that, said processor unit also comprises the scan module that carries out vision signal scanning.
8. the conversion equipment of SDI composite audio vision signal according to claim 1 is characterized in that, said processor unit also comprises the voice data extraction module of search extraction packets of audio data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205464786U CN202374368U (en) | 2011-12-23 | 2011-12-23 | Conversion device for serial digital interface (SDI) composite audio and video signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205464786U CN202374368U (en) | 2011-12-23 | 2011-12-23 | Conversion device for serial digital interface (SDI) composite audio and video signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374368U true CN202374368U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205464786U Expired - Lifetime CN202374368U (en) | 2011-12-23 | 2011-12-23 | Conversion device for serial digital interface (SDI) composite audio and video signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933683A (en) * | 2016-05-03 | 2016-09-07 | 王东 | Novel video and audio transmission method satisfying long-distance transmission |
| 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 |
| CN113287329A (en) * | 2021-03-31 | 2021-08-20 | 华为技术有限公司 | Data transmission method and device |
-
2011
- 2011-12-23 CN CN2011205464786U patent/CN202374368U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933683A (en) * | 2016-05-03 | 2016-09-07 | 王东 | Novel video and audio transmission method satisfying long-distance transmission |
| 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 |
| CN113287329A (en) * | 2021-03-31 | 2021-08-20 | 华为技术有限公司 | Data transmission method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN BIGTIDE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN JUCHAO TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Huarong Road No. 397 Fu Long Industrial Zone 8 Patentee after: SHENZHEN BIGTIDE TECHNOLOGY CO., LTD. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Pingshan Road, Da Yuan Industrial Zone 10 Patentee before: Shenzhen Juchao Technology Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: 518000 517, building 7, Hengda fashion Huigu building (East District), Fulong Road, Tongsheng community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN BIGTIDE TECHNOLOGY Co.,Ltd. Address before: Building 8, longfu Industrial Zone, 397 Huarong Road, Longhua New District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN BIGTIDE TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
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| CX01 | Expiry of patent term |