About: ITU-R BT.656

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ITU-R Recommendation BT.656, sometimes also called ITU656, describes a simple digital video protocol for streaming uncompressed PAL or NTSC standard-definition television (625 or 525 lines) signals. The protocol builds upon the 4:2:2 digital video encoding parameters defined in ITU-R Recommendation BT.601, which provides interlaced video data, streaming each field separately, and uses the YCbCr color space and a 13.5 MHz sampling frequency for pixels.

Attributes	Values
rdf:type	yago:Abstraction100002137 yago:Advice106671484 yago:Communication100033020 yago:Message106598915 yago:Proposal107162194 yago:Recommendation106671637 yago:WikicatITU-RRecommendations
rdfs:label	ITU-R BT.656 (en) ITU-R BT.656 (ko) BT.656 (zh)
rdfs:comment	ITU-R BT.656(ITU-R Recommendation BT.656) 또는 ITU 656 표준은 압축되지 않은 PAL 또는 NTSC 표준 화질 텔레비전을 스트리밍하기 위한 단순한 디지털 영상 프로토콜을 정의한다. 이 프로토콜은 비월 주사된 영상 데이터를 지원하며, 각 필드는 따로따로 스트리밍된다. ITU 656 프로토콜은 용의 DAC 칩으로 을 보내는 데 사용되거나 비디오 캡처용 ADC의 출력으로 사용될 수 있다. (ko) ITU-R Recommendation BT.656，有时候也称为ITU656，是一个简单的，用于将未压缩的PAL或NTSC（525行或者625行）信号进行编码。 ITU-R BT.656 8/10位数据传输；不需要同步信号；串行数据传输；传输速率是601的2倍；先传Y，后传UV。行场同步信号嵌入在数据流中。BT656主要用于实时视频数据传递。包含三部分 1：视频信号 2：定时基准信号：有两个定时基准信号，一个在每个视频数据块的开始(Start of ActiveVideo，SAV)，另一个在每个视频数据块的结束(End of Active Video，EAV)；每个定时基准信号由4 个字的序列组成，格式如下： FF 00 00 XY （16 进制）头三个是固定前缀，第4 个字包含定义第二场标识、场消隐状态和行消隐状态的信息。 3：辅助信号：辅助数据信号可以以10 比特形式只在行消隐期间传送，还可以以8 比特形式只在场消隐中的行的有效期间传送。 (zh) ITU-R Recommendation BT.656, sometimes also called ITU656, describes a simple digital video protocol for streaming uncompressed PAL or NTSC standard-definition television (625 or 525 lines) signals. The protocol builds upon the 4:2:2 digital video encoding parameters defined in ITU-R Recommendation BT.601, which provides interlaced video data, streaming each field separately, and uses the YCbCr color space and a 13.5 MHz sampling frequency for pixels. (en)
dcterms:subject	Film and video technology Serial digital interface ITU-R recommendations Digital television International Telecommunication Union
Wikipage page ID	6789346 (xsd:integer)
Wikipage revision ID	1121447701 (xsd:integer)
Link from a Wikipage to another Wikipage	D-subminiature Integrated circuit Film and video technology Serial digital interface NTSC Emitter-coupled logic PAL BNC connector 525 lines 625 lines ITU-R recommendations Chroma subsampling Digital video Digital television International Telecommunication Union Bit Digital-to-analog converter CMOS Pixel Rec. 601 Serial digital interface Word (computer architecture) YCbCr Standard-definition television Cathode-ray tube ITU-R Interlaced BT.601 4:2:2
sameAs	ITU-R BT.656 ITU-R BT.656 ITU-R BT.656 ITU-R BT.656 ITU-R BT.656 ITU-R BT.656
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Short_description dbt:Video-tech-stub
has abstract	ITU-R Recommendation BT.656, sometimes also called ITU656, describes a simple digital video protocol for streaming uncompressed PAL or NTSC standard-definition television (625 or 525 lines) signals. The protocol builds upon the 4:2:2 digital video encoding parameters defined in ITU-R Recommendation BT.601, which provides interlaced video data, streaming each field separately, and uses the YCbCr color space and a 13.5 MHz sampling frequency for pixels. The standard can be implemented to transmit either 8-bit values (the standard in consumer electronics) or 10-bit values (sometimes used in studio environments). Both a parallel and a serial transmission format are defined. For the parallel format, a 25-pin D-Sub connector pinout and ECL logic levels are defined. The serial format can be transmitted over 75-ohm coaxial cable with BNC connectors, but there is also a fibre-optical version defined. The parallel version of the ITU-R BT.656 protocol is also used in many TV sets between chips using CMOS logic levels. Typical applications include the interface between a PAL/NTSC decoder chip and a DAC integrated circuit for driving a CRT in a TV set. (en) ITU-R BT.656(ITU-R Recommendation BT.656) 또는 ITU 656 표준은 압축되지 않은 PAL 또는 NTSC 표준 화질 텔레비전을 스트리밍하기 위한 단순한 디지털 영상 프로토콜을 정의한다. 이 프로토콜은 비월 주사된 영상 데이터를 지원하며, 각 필드는 따로따로 스트리밍된다. ITU 656 프로토콜은 용의 DAC 칩으로 을 보내는 데 사용되거나 비디오 캡처용 ADC의 출력으로 사용될 수 있다. (ko) ITU-R Recommendation BT.656，有时候也称为ITU656，是一个简单的，用于将未压缩的PAL或NTSC（525行或者625行）信号进行编码。 ITU-R BT.656 8/10位数据传输；不需要同步信号；串行数据传输；传输速率是601的2倍；先传Y，后传UV。行场同步信号嵌入在数据流中。BT656主要用于实时视频数据传递。包含三部分 1：视频信号 2：定时基准信号：有两个定时基准信号，一个在每个视频数据块的开始(Start of ActiveVideo，SAV)，另一个在每个视频数据块的结束(End of Active Video，EAV)；每个定时基准信号由4 个字的序列组成，格式如下： FF 00 00 XY （16 进制）头三个是固定前缀，第4 个字包含定义第二场标识、场消隐状态和行消隐状态的信息。 3：辅助信号：辅助数据信号可以以10 比特形式只在行消隐期间传送，还可以以8 比特形式只在场消隐中的行的有效期间传送。 (zh)
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foaf:isPrimaryTopicOf	wikipedia-en:ITU-R_BT.656
is Link from a Wikipage to another Wikipage of	BT.656 RTP payload formats 576p Digital component video Video decoder Alchemy (microarchitecture) Rec. 601 Serial digital interface SAV TV detector van Outline of the United Nations ITU-R Recommendation BT.656 ITU656 Start of Active Video Start of active video
is Wikipage redirect of	BT.656 ITU-R Recommendation BT.656 ITU656 Start of Active Video Start of active video
is foaf:primaryTopic of	wikipedia-en:ITU-R_BT.656

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