
Figure 15.3 Scan-line waveform for 1080i30 HDTV component luma. Analog trilevel sync is
shown, excursing +300 mV. (In digital video, sync is not coded as a signal level.) At an 8-bit inter-
face, black is represented by code 16 and white by 235. The indicated 1920 active samples contain
picture information; the remaining sample intervals of the 2200 total comprise horizontal blanking.
SAAPTE 305.2AA,
Serial Data Trans-
port Interface.
Compressed interfaces can be used to transfer video
into nonlinear editing systems, and to "dub" (dupli-
cate) between VTRs sharing the same compression
system. Compressed video can be