ITU-R BT.656
ITU-R Recommendation BT.656, sometimes also called ITU656, describes a simple digital video protocol for streaming uncompressed PAL or NTSC Standard Definition TV (525 or 625 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 Sub-D 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.
ITU (disambiguation)
ITU is the International Telecommunication Union, formerly the International Telegraph Union.
ITU or Itu may also refer to:
Places
Organizations
Itu (surname)
Itu is a Romanian surname. Notable people with the surname include:
Itu, São Paulo
Itu is an old and historic municipality in the state of São Paulo in Brazil. It is part of the Metropolitan Region of Sorocaba. The population is 167,095 (2015 est.) in an area of 640.72 km². The elevation is 583 m. This place name comes from the Tupi language, meaning big waterfall. Two rivers flow through Itu: Tietê and Jundiaí. Itu has five hospitals, eleven bank agencies and one shopping center, the Plaza Shopping Itu.
Itu was founded by the Portuguese in 1610 by Domingos Fernandes. It became a parish in 1653. In 1657, it was elevated to a town and municipality. It became a part of Brazil in 1822. It became a city in 1843.
Itu was the birthplace of the Brazilian Republic and has a renowned museum.
Itu became a famous town after "Simplicio" a well known Brazilian comedian, born in Itu, was made Tourism Secretary and to increase tourism promoted it as the "capital of large things". For example, the town square holds a giant 4mt high yellow phone-booth "orelhão". The Itu popsicle is about 30 cm (1 foot) tall. And a giant Christmas tree.
Podcasts:
