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ancillary time code (ATC)

The Ancillary Time Code(ATC) is an auxiliary time code that is inserted in the vertical blanking intervals (VANC) and horizontal blanking intervals (HANC) of SDI signals

. TheATC was standardized by the Society of Motion Picture and Television Engineers (SMPTE) in 1998 and is used instead of the Vertical Interval

Time Code(VITC).

The ATC time code can include the VITC and Longitudinal Time Code (LTC) data and is most often inserted in lines 9 and 10.

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Englisch: ancillary time code - ATC
Updated at: 14.11.2008
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