CN202475638U - Converting device of multi-path composite HDMI audio frequency video signal - Google Patents
Converting device of multi-path composite HDMI audio frequency video signal Download PDFInfo
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- CN202475638U CN202475638U CN2011205464733U CN201120546473U CN202475638U CN 202475638 U CN202475638 U CN 202475638U CN 2011205464733 U CN2011205464733 U CN 2011205464733U CN 201120546473 U CN201120546473 U CN 201120546473U CN 202475638 U CN202475638 U CN 202475638U
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Abstract
The utility model relates to a converting device of multi-path composite HDMI audio video signals. A receiving module receives the multi-path composite HDMI audio video signals, analyzes each path of the composite HDMI audio video signal into an audio signal and a video signal, and then transmits the audio signal and the video signal with LVTTL electric level. A processor module inserts the separated audio frequency signals into the corresponding video signals and an audio synchronous code data package is added, thereby generating SDI composite audio video signals. The converting device of multi-path composite HDMI audio video signals provided by the utility model converts the multi-path composite HDMI audio video signals into SID composite audio video signals, thereby facilitating long range transmission and reducing image loss.
Description
Technical field
The utility model relates to a kind of conversion equipment of AV signal, relates in particular to the conversion equipment of the compound HDMI AV signal of a kind of multichannel.
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.Fail in the prior art compound HDMI AV signal is changed, particularly, can not carry out conversion process effectively for the compound HDMI AV signal of multichannel.
The utility model content
The technical problem that the utility model solves is: make up the conversion equipment of the compound HDMI AV signal of a kind of multichannel, overcome prior art for the compound HDMI AV signal of multichannel, can not carry out the technical problem of conversion process effectively.
The technical scheme of the utility model is: make up the conversion equipment of the compound HDMI AV signal of a kind of multichannel, comprise the receiving element that receives HDMI AV signal to be sent, the AV signal after said receiving element is received carries out the processor unit of signal conversion processes, the output unit of output SDI composite audio vision signal; Said receiving element receives the compound HDMI AV signal of multichannel; Every road composite audio vision signal is parsed audio signal and vision signal; Send with the LVTTL level then, the audio signal that said processor unit separates every road is inserted in the corresponding video signals, adds audio sync code data bag; Generate SDI composite audio vision signal, said output unit output SDI composite audio vision signal.
The further technical scheme of the utility model is: said processor unit comprises that the multichannel that multichannel composite audio vision signal is selected to switch switches multiplex circuit.
The further technical scheme of the utility model is: said conversion equipment also comprises with electrical signal conversion being the electrooptic switching element of light signal.
The further technical scheme of the utility model is: said processor unit comprises the scrambling module that signal is carried out scrambling.
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 technique effect of the utility model is: the conversion equipment of the compound HDMI AV signal of a kind of multichannel of the utility model; Said receiving element receives the compound HDMI AV signal of multichannel; Every road composite audio vision signal is parsed audio signal and vision signal; Send with the LVTTL level then, the audio signal that said processor unit separates every road is inserted in the corresponding video signals, adds audio sync code data bag; Generate SDI composite audio vision signal, said output unit output SDI composite audio vision signal.The conversion equipment of the compound HDMI AV signal of a kind of multichannel of the utility model converts the compound HDMI AV signal of multichannel to SDI composite audio vision signal, is convenient to long Distance Transmission, and image impairment is little.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model processor unit structural representation.
Embodiment
Below in conjunction with specific embodiment, the utility model technical scheme is further specified.
As shown in Figure 1; The utility model embodiment is: make up the conversion equipment of the compound HDMI AV signal of a kind of multichannel, comprise the receiving element 1 that receives HDMI AV signal to be sent, the AV signal after said receiving element is received carries out the processor unit 2 of signal conversion processes, the output unit 3 of output SDI composite audio vision signal; Said receiving element 1 receives the compound HDMI AV signal of multichannel; Every road composite audio vision signal is parsed audio signal and vision signal; Send with the LVTTL level then, the audio signal that said processor unit 2 separates every road is inserted in the corresponding video signals, adds audio sync code data bag; Generate SDI composite audio vision signal, said output unit 3 output SDI composite audio vision signals.
As shown in Figure 1; The practical implementation process of the utility model is: said receiving element 1 receives the multichannel HDMI composite audio vision signal that meets electrical code; Parse audio-video signal; Send with the LVTTL level, in the specific embodiment, said multichannel HDMI composite audio vision signal meets the transition minimized differential signaling electrical code.As shown in Figure 2; Said processor unit 2 practical implementation processes are following: at first; Receive the audio signal and the vision signal of the next parsing of said receiving element 1 transmission; The form of identification video signal, the audio signal of then every road being separated is inserted in the corresponding video signals and is obtained compound AV signal, in compound AV signal, inserts audio sync code data bag; To signal scrambling, the complex tone vision signal of LVTTL electrical code converted to meet serial digital signal and send 4:1LVDS (Low-Voltage Differential Signaling Low Voltage Differential Signal) the level signal output that application-specific integrated circuit (ASIC) requires.For the SD vision signal, after with audio signal and SMPTE352 packet insertion corresponding video signals, also to insert the EDH bag.Said output unit 3 is exported SDI composite audio vision signal with one road serial signal.In the specific embodiment, in output SDI composite audio vision signal step, with Low Voltage Differential Signal output SDI composite audio vision signal.Also comprise and convert SDI composite audio vision signal into light signal through optical fiber output.In the specific embodiment, said processor unit 2 comprises microcontroller unit 21 and the scrambling module that signal is carried out scrambling.
As shown in Figure 2; The preferred implementation of the utility model is: said processor unit 2 comprises that the multichannel that multichannel composite audio vision signal is selected to switch switches multiplex circuit 22, adopts multichannel to switch multiplex circuit 22 and between multichannel composite audio vision signal, selects to switch.
As shown in Figure 1; The preferred implementation of the utility model is: said conversion equipment also comprises with electrical signal conversion being the electrooptic switching element 4 of light signal; Is that light signal is exported with optical fiber through electrooptic switching element 4 with the electrical signal conversion of transmitting, and has realized long Distance Transmission.
As shown in Figure 1; The preferred implementation of the utility model is: said conversion equipment comprises that also USB interface changes the USB interface change-over circuit of UART interface 23; The USB interface change-over circuit is realized the bridge joint between USB interface and the UART interface 23; Therefore this machine can pass through the USB interface telecommunication with main frame, realizes Long-distance Control.
As shown in Figure 1, the preferred implementation of the utility model is: said conversion equipment also comprises configuration and monitors the I2C interface circuit 24 of said receiving element, is configured and monitors its operating state through 24 pairs of a plurality of receiving elements of I2C interface circuit.
The technique effect of the utility model is: the conversion equipment of the compound HDMI AV signal of a kind of multichannel of the utility model; Said receiving element 1 receives the compound HDMI AV signal of multichannel; Every road composite audio vision signal is parsed audio signal and vision signal; Send with the LVTTL level then, the audio signal that said processor unit 2 separates every road is inserted in the corresponding video signals, adds audio sync code data bag; Generate SDI composite audio vision signal, said output unit 3 output SDI composite audio vision signals.The conversion equipment of the compound HDMI AV signal of a kind of multichannel of the utility model converts the compound HDMI AV signal of multichannel to SDI composite audio vision signal, is convenient to long Distance Transmission, and image impairment is little.
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 (6)
1. the conversion equipment of the compound HDMI AV signal of multichannel; It is characterized in that, comprise the receiving element that receives HDMI AV signal to be sent, the AV signal after said receiving element is received carries out the processor unit of signal conversion processes, the output unit of output SDI composite audio vision signal; Said receiving element receives the compound HDMI AV signal of multichannel; Every road composite audio vision signal is parsed audio signal and vision signal; Send with the LVTTL level then, the audio signal that said processor unit separates every road is inserted in the corresponding video signals, adds audio sync code data bag; Generate SDI composite audio vision signal, said output unit output SDI composite audio vision signal.
2. the conversion equipment of the compound HDMI AV signal of multichannel according to claim 1 is characterized in that, said processor unit comprises that the multichannel that multichannel composite audio vision signal is selected to switch switches multiplex circuit.
3. the conversion equipment of the compound HDMI AV signal of multichannel according to claim 1 is characterized in that, said conversion equipment also comprises with electrical signal conversion being the electrooptic switching element of light signal.
4. the conversion equipment of the compound HDMI AV signal of multichannel according to claim 1 is characterized in that said processor unit comprises the scrambling module that signal is carried out scrambling.
5. the conversion equipment of the compound HDMI AV signal of multichannel 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 the compound HDMI AV signal of multichannel according to claim 1 is characterized in that, said conversion equipment also comprises configuration and monitors the I2C interface circuit of said receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205464733U CN202475638U (en) | 2011-12-23 | 2011-12-23 | Converting device of multi-path composite HDMI audio frequency video signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205464733U CN202475638U (en) | 2011-12-23 | 2011-12-23 | Converting device of multi-path composite HDMI audio frequency video signal |
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| CN202475638U true CN202475638U (en) | 2012-10-03 |
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| CN2011205464733U Expired - Lifetime CN202475638U (en) | 2011-12-23 | 2011-12-23 | Converting device of multi-path composite HDMI audio frequency video signal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075229A1 (en) * | 2012-11-13 | 2014-05-22 | 深圳市广平正科技有限责任公司 | Smart home access device |
| CN104469459A (en) * | 2014-12-12 | 2015-03-25 | 成都德芯数字科技有限公司 | OTT audio and video modulation circuit and modulation output method of OTT audio and video modulation circuit |
| CN106162025A (en) * | 2015-04-21 | 2016-11-23 | 佛山芯珠微电子有限公司 | A kind of algorithm realizing mutually conversion between HDMI signal and sdi signal |
| CN106162026A (en) * | 2015-04-21 | 2016-11-23 | 佛山芯珠微电子有限公司 | A kind of HDMI IP system and architecting method thereof |
| CN106791727A (en) * | 2016-12-19 | 2017-05-31 | 上海申际轨道交通设备发展有限公司 | A kind of system and method for long range transmission video signal |
| CN109743475A (en) * | 2019-01-10 | 2019-05-10 | 杭州星犀科技有限公司 | The presentation-guiding device of multichannel live streaming |
| CN110719422A (en) * | 2018-07-11 | 2020-01-21 | 视联动力信息技术股份有限公司 | Method and system for transmitting high-definition multimedia interface HDMI signal |
-
2011
- 2011-12-23 CN CN2011205464733U patent/CN202475638U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075229A1 (en) * | 2012-11-13 | 2014-05-22 | 深圳市广平正科技有限责任公司 | Smart home access device |
| CN104469459A (en) * | 2014-12-12 | 2015-03-25 | 成都德芯数字科技有限公司 | OTT audio and video modulation circuit and modulation output method of OTT audio and video modulation circuit |
| CN106162025A (en) * | 2015-04-21 | 2016-11-23 | 佛山芯珠微电子有限公司 | A kind of algorithm realizing mutually conversion between HDMI signal and sdi signal |
| CN106162026A (en) * | 2015-04-21 | 2016-11-23 | 佛山芯珠微电子有限公司 | A kind of HDMI IP system and architecting method thereof |
| CN106791727A (en) * | 2016-12-19 | 2017-05-31 | 上海申际轨道交通设备发展有限公司 | A kind of system and method for long range transmission video signal |
| CN110719422A (en) * | 2018-07-11 | 2020-01-21 | 视联动力信息技术股份有限公司 | Method and system for transmitting high-definition multimedia interface HDMI signal |
| CN110719422B (en) * | 2018-07-11 | 2022-06-21 | 视联动力信息技术股份有限公司 | Method and system for transmitting high-definition multimedia interface HDMI signal |
| CN109743475A (en) * | 2019-01-10 | 2019-05-10 | 杭州星犀科技有限公司 | The presentation-guiding device of multichannel live streaming |
| CN109743475B (en) * | 2019-01-10 | 2023-12-12 | 杭州星犀科技有限公司 | Guide broadcasting device for multipath live broadcasting |
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Legal Events
| Date | Code | Title | Description |
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| 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. |
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| 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. |
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| 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: 20121003 |
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| CX01 | Expiry of patent term |