Digital video interfaces

This chapter provides an overview of digital interfaces for uncompressed and compressed standard-definition television (SDTV) and high-definition television (HDTV). Digital video interfaces convey active video framed in timing reference signal (TRS) sequences including start of active video (SAV) and end of active video (EAV). The basic coding parameters of HDTV systems are standardized in Rec. 709. Various scanning systems are detailed in several SMPTE standards. The standard H DTV analog interfaces use trilevel sync, instead of the bilevel sync that is used for analog SDTV.