Frame synchronization: Difference between revisions

Revision as of 17:44, 3 December 2013

Revision as of 20:35, 10 March 2014

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{{context|date=February 2013}}

{{expert-subject|1=Video|date=February 2013}}

'''Frame synchronization''' is the process of synchronizing display pixel scanning to a synchronization source. When several systems are connected, a synchronization signal is fed from a master system to the other systems in the network, and the displays are synchronized with each other.

While receiving a stream of [[data frame|framed]] [[data]], frame synchronization or '''framing''' is the process by which incoming frame alignment signals (i.e., a distinctive [[bit]] sequences or [[syncword]]s) are identified (that is, distinguished from data bits), permitting the data bits within the frame to be extracted for decoding or retransmission.

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==Frame synchronizer==

===Television===

{{further|Time base corrector}}

A '''frame synchronizer''' is a device used in [[live television]] [[television production|production]] to match the timing of an incoming [[video]] source to the timing of an existing video system. They are often used to "time in" consumer video equipment to a professional system but can be used to stabilize any video. The frame synchronizer essentially takes a picture of each [[Film frame|frame]] of incoming video and then immediately outputs it with the correct synchronization signals to match an existing video system. A [[genlock]] signal is required to provide a means for video synchronizing with the house reference.

===Telemetry===

[[Image:PCM Stream.jpg|frame|none|PCM stream prior to frame synchronization]]

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* [[Self-synchronizing code]]

* [[Superframe]]

* [[Generator locking]]

==References==

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==External links==

* [http://www.ulyssix.com Telemetry Ground Station Processing Electronics telemetry link]

* [http://www.algolith.com/products/broadcast/frame-synchronization/index.html Algolith Frame Synchronizer Solutions]

[[Category:Data transmission]]