
Digital sync, TRS,
ancillary data, and interface
33
I use the subscript h to denote a
hexadecimal (base 16)integer.
Sample values in this chapter
are expressed in 10 bits.
Along with picture information, a video system needs
to convey information about which time instants- or
which digital samples- are associated with the start of
each frame and the start of each line. In digital video,
this information is conveyed by
timing reference signals
(TRS) that I will explain in this chapter.
I outlined the
Serial digital inter/ace (SDI),
on page 130.
SDI has capacity to transmit ancillary (ANC) data. ...