CN203279033U - Converter of converting high definition serial digital interface signal into high definition multimedia interface signal - Google Patents
Converter of converting high definition serial digital interface signal into high definition multimedia interface signal Download PDFInfo
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- CN203279033U CN203279033U CN 201320342388 CN201320342388U CN203279033U CN 203279033 U CN203279033 U CN 203279033U CN 201320342388 CN201320342388 CN 201320342388 CN 201320342388 U CN201320342388 U CN 201320342388U CN 203279033 U CN203279033 U CN 203279033U
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Abstract
The utility model discloses a converter of converting a high definition serial digital interface signal into a high definition multimedia interface signal, specifically relates to a device capable of converting a single-channel high definition serial digital interface signal into the high definition multimedia interface signal so as to realize video image and audio transmission, and belongs to the communication electronics field. The converter comprises a lightning protection device 1, an SDI (Serial Digital Interface) signal reception equalizer, an SDI signal decoder, a parallel-to-serial processor, an HDMI (High Definition Multimedia Interface) signal encoder, an HDMI signal transmitter, a lightning protection device 2 and a power supply. The converter of converting the high definition serial digital interface signal into the high definition multimedia interface signal can connect the high definition camera with the display terminal which is provided with the high definition multimedia interface, can realize the digital audio and video signal synchronous transmission with use of one cable, and can effectively reduce the use cost and complication level of the high definition monitoring and display terminal.
Description
Technical field
The utility model relates to a kind of high-definition digital serial line interface signal and turns the HDMI (High Definition Multimedia Interface) signal converter, a kind ofly single channel high-definition digital serial line interface signal can be converted to the HDMI (High Definition Multimedia Interface) signal specifically, to realize the equipment of video image and audio transmission, be applicable to the communications electronics field.
Background technology
HDMI (High Definition Multimedia Interface); it is the HDMI interface; that first being supported on the single line cable transmitted; without digital high definition video, multichannel audio and the intelligent format of compression and the digital interface of control command data; can transmit simultaneously audio frequency and video-audio signal; the maximum data transmission speed is 5Gbps, can transmit farthest 20 meters, need not simultaneously to transmit at signal advance capable D/A or mould/number conversion.
Digital serial interface, namely the SDI interface, be that each bit rate of data byte and corresponding data are passed through the interface that the single channel order transmits.The digital serial interface signal can be divided into SD digital serial interface signal (SD-SDI signal) according to speed, high-definition digital serial line interface signal (HD-SDI signal) and 3G digital serial interface signal (3G-SDI signal), because the data transfer rate of serial digital signal is very high, so must be through processing before transmission.High-definition digital serial line interface (HD-SDI) is used to transmit the digital video signal without compression, adopts coaxial cable take bnc interface as specifications of cables, and effective propagation path is 100 meters.
After the experience simulation monitoring of safety monitoring market, digital supervision, three developing stage of network monitoring, the epoch of high-definition monitoring have been welcome again comprehensively.Realize real high-definition monitoring, must support high definition from the collection of video source, the processing of vision signal, the transmission of vision signal, the display navigation of video, the links such as playback of video file comprehensively, for the user, high definition only comprised front end, transmitted, browsed, just meaningful during the links such as demonstration, platform, storage.So, for high-definition monitoring, only a high-definition camera is inadequate, need to form a complete system by front-end camera, network hard disk video recorder/digital video recorder/management platform device, display device, memory device, transmission cable, and each link is indispensable.
Due to the high-definition digital signal of high-definition digital serial line interface signal (HD-SDI signal) as a kind of main flow, application in safety-protection system is very extensive, be enough to match in excellence or beauty with the network high-definition video signal, thus most shoot with video-corder watch-dog all adopt digital serial interface carry out to the collection of video source with supervise.Yet card needs thousands of units if display terminal matches a SD digital serial interface (SD-SDI), and a high-definition digital serial line interface (HD-SDI) card reaches tens thousand of units especially, and expensive while such as need maintenance are also wasted time and energy.Do you how could not only satisfy the high-definition monitoring system demand but also effectively reduce the use cost of display terminal?
The utility model content
For the problems referred to above, the utility model aims to provide a kind of can the realization and converts single channel high definition serial line interface signal to the HDMI (High Definition Multimedia Interface) signal, couple together with high-definition camera with the display terminal of HDMI (High Definition Multimedia Interface), transmitting video image and audio frequency, and the high-definition digital serial line interface signal of problem that solves simultaneously the display terminal high cost of high-definition monitoring turns the HDMI (High Definition Multimedia Interface) signal converter.
for achieving the above object, the utility model has adopted following technical scheme: a kind of high-definition digital serial line interface signal turns the HDMI (High Definition Multimedia Interface) signal converter, comprise lightning protection device one, sdi signal receives equalizer, SDI serial line interface decoding signals, the parallel serial processor that turns, the HDMI signal coder, the HDMI sender unit, lightning protection device two and power supply, described lightning protection device one carries out signal with described sdi signal reception equalizer and is connected, described sdi signal receives equalizer and is connected SDI serial line interface decoding signals and carries out signal and connect, described SDI serial line interface decoding signals carries out signal and is connected with the described parallel serial processor that turns, the described parallel serial processor that turns is carried out signal with described HDMI signal coder and is connected, described HDMI signal coder carries out signal with described HDMI sender unit and is connected, described HDMI sender unit carries out signal with described lightning protection device two and is connected, described power supply receives equalizer with described sdi signal successively, SDI serial line interface decoding signals, the parallel serial processor that turns, HDMI signal coder and HDMI sender unit are electrically connected to.
Owing to adopting the said structure design, described high-definition digital serial line interface turns the HDMI (High Definition Multimedia Interface) signal converter can realize that high-definition digital serial line interface signal is to the conversion of HDMI (High Definition Multimedia Interface) signal, thereby substitute traditional digital serial interface display terminal with the display terminal with HDMI (High Definition Multimedia Interface), greatly reduce use cost.And HDMI (High Definition Multimedia Interface) has better interference free performance, can realize the nothing gain transmission of the longest 20 meters; Be optimized for large scale digital flat panel TV resolution, compatible good; Connected mode that can the Intelligence Selection optimum Match between equipment; Have powerful copyright protection regime (HDCP), effectively prevent pirate phenomenon; Support the 24bit color depth to process; The interface volume is little, and various device can easily be installed; The single line cable can be realized digital audio, vision signal synchronous transmission, effectively reduces use cost and numerous and diverse degree; Complete compatible DVI digital visual interface standard, the user does not worry that new-old system does not mate; Support hot plug technology.So the display terminal with HDMI (High Definition Multimedia Interface) is more suitable for the growth requirement of high-definition monitoring system than traditional digital serial interface display terminal, described high-definition digital serial line interface signal turns the HDMI (High Definition Multimedia Interface) signal converter to be improved for the development of high-definition monitoring very important effect is arranged.
Description of drawings
Fig. 1: the utility model structure block diagram
In Fig. 1: 1,---lightning protection device one, 2---sdi signal receives equalizer, and 3---SDI serial line interface decoding signals, 4---walk abreast and turn serial processor, 5---HDMI signal coder, 6---HDMI sender unit, 7---lightning protection device two, 8---power supply.
Embodiment
As shown in Figure 1: a kind of high-definition digital serial line interface of the utility model signal turns the HDMI (High Definition Multimedia Interface) signal converter, comprise 1, lightning protection device one, 2, sdi signal receives equalizer, 3, SDI serial line interface decoding signals, 4, the parallel serial processor that turns, 5, HDMI signal coder, 6, the HDMI sender unit, 7, lightning protection device two and 8, power supply.described lightning protection device 1 carries out signal with described sdi signal reception equalizer 2 and is connected, described sdi signal reception equalizer 2 carries out signal with described SDI serial line interface decoding signals 3 and is connected, described SDI serial line interface decoding signals 3 carries out signal and is connected with the described parallel serial processor 4 that turns, the described parallel serial processor 4 that turns is carried out signal with described HDMI signal coder 5 and is connected, described HDMI signal coder 5 carries out signal with described HDMI signal 6 transmitters and is connected, described HDMI sender unit 6 carries out signal with described lightning protection device 27 and is connected, described power supply 8 receives equalizer 2 with described sdi signal successively, SDI serial line interface decoding signals 3, the parallel serial processor 4 that turns, HDMI signal coder 5 and HDMI sender unit 6 are electrically connected to.
when high-definition digital serial line interface signal input converter, begin most through lightning protection device one, when bearing the pulse of high-energy instantaneous overvoltage, its working impedance can be down to very low to allow large electric current to pass through immediately, with voltage clamping at predeterminated level, thereby make the precise electronic components and parts avoid damaging, then signal receives equalizer by sdi signal and receives and eliminate the impact that it brings because ground is unbalanced, reduce the signal noise bandwidth, reach the purpose of earth potential equilibrium, then, signal is delivered to SDI serial line interface decoding signals, be high definition parallel signal data and parallel auxiliary signal data by it with high-definition digital serial line interface signal decomposition, and pass to simultaneously respectively the parallel serial processor that turns, and then parallelly turn serial processor high definition parallel signal data and parallel auxiliary signal data are carried out conversion process, synthetic serial video data and serial voice data also pass to respectively the HDMI signal coder, again by the HDMI signal coder to the processing of encoding of serial video data and serial voice data, synthetic HDMI (High Definition Multimedia Interface) signal also passes to the HDMI sender unit, by the HDMI sender unit, it is carried out being passed to lightning protection device two after clock is reformed, send output via lightning protection device two.During this process, the power supply of input receives equalizer, SDI serial line interface decoding signals, parallelly turns serial processor, HDMI signal coder and HDMI sender unit and power sdi signal successively.
Described high-definition digital serial line interface signal turns the HDMI (High Definition Multimedia Interface) signal converter, support SD digital serial interface (SD-SDI) signal, high-definition digital serial line interface (HD-SDI) signal and 3G digital serial interface (3G-SDI) signal, video format is supported 720p50/60,1080i50/60,1080p25/30,1080p50/60 installs simple, easy operating, supply power voltage are DC5V/500mA.
Claims (2)
1. a high-definition digital serial line interface signal turns the HDMI (High Definition Multimedia Interface) signal converter, comprise lightning protection device one (1), sdi signal receives equalizer (2), SDI serial line interface decoding signals (3), the parallel serial processor (4) that turns, HDMI signal coder (5), HDMI sender unit (6), lightning protection device two (7) and power supply (8), described lightning protection device one (1) and described sdi signal are accepted equalizer (2) and are carried out signal and be connected, described sdi signal receives equalizer (2) and the SDI serial line interface decoding signals (3) of being connected carries out the signal connection, described SDI serial line interface decoding signals (3) carries out signal and is connected with the described parallel serial processor (4) that turns, the described parallel serial processor (4) that turns is carried out signal with described HDMI signal coder (5) and is connected, described HDMI signal coder (5) carries out signal with described HDMI sender unit (6) and is connected, described HDMI sender unit (6) carries out signal with described lightning protection device two (7) and is connected, described power supply (8) receives equalizer (2) with described sdi signal successively, SDI serial line interface decoding signals (3), the parallel serial processor (4) that turns, HDMI signal coder (5) and HDMI sender unit (6) are electrically connected to.
2. high-definition digital serial line interface signal according to claim 1 turns the HDMI (High Definition Multimedia Interface) signal converter, it is characterized in that having designed described SDI serial line interface decoder to the decomposition of decoding of high-definition digital serial line interface signal, parallel turn serial processor decoded parallel signal data are processed, synthetic serial video and audio signal by described again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320342388 CN203279033U (en) | 2013-06-07 | 2013-06-07 | Converter of converting high definition serial digital interface signal into high definition multimedia interface signal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320342388 CN203279033U (en) | 2013-06-07 | 2013-06-07 | Converter of converting high definition serial digital interface signal into high definition multimedia interface signal |
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| CN203279033U true CN203279033U (en) | 2013-11-06 |
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| CN 201320342388 Expired - Lifetime CN203279033U (en) | 2013-06-07 | 2013-06-07 | Converter of converting high definition serial digital interface signal into high definition multimedia interface signal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107567710A (en) * | 2015-04-14 | 2018-01-09 | 迪桑科技有限公司 | System and method for handling video data |
| CN114143492A (en) * | 2020-09-02 | 2022-03-04 | 深圳市显盈科技股份有限公司 | Audio and video conversion circuit and live broadcast device |
-
2013
- 2013-06-07 CN CN 201320342388 patent/CN203279033U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107567710A (en) * | 2015-04-14 | 2018-01-09 | 迪桑科技有限公司 | System and method for handling video data |
| 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 |
| CN114143492A (en) * | 2020-09-02 | 2022-03-04 | 深圳市显盈科技股份有限公司 | Audio and video conversion circuit and live broadcast device |
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| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
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| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Gu Jiangshan Document name: Notice of Termination of Patent Rights |
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| DD01 | Delivery of document by public notice |