This supplementary standard establishes how to transport certain data services that are sent by some broadcasters. These services may be sent over NTSC using lines in or near the Vertical Blanking Interval or in digital video using VANC. The method for encapsulating some of these services has been defined in SCTE 127.
Download A/99:2008, “Carriage Of Legacy TV Data Services”, approved 23 July 2008.
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The Advanced Television Systems Committee, Inc., is an international, non-profit organization developing voluntary standards and recommended practices for digital terrestrial broadcasting. ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC also develops digital terrestrial broadcasting implementation strategies and supports educational activities on ATSC standards.