Encyclopedia > Extended-definition television

  Article Content

Extended-definition television

Extended-definition television (EDTV): Television in which (a) improvements are made to the standard National Television System Committee (NTSC) television system, (b) the improvements are receiver-compatible with the standard NTSC television system, and (c) the improvements modify the standard NTSC television system emission standards.

Note 1: EDTV improvements may include (a) a wider aspect ratio, (b) a higher picture definition than NTSC definition, and (c) any of the improvements used in improved-definition television (IDTV).

Note 2: When EDTV signals are transmitted in the 4:3 aspect ratio, it is referred to as "EDTV." When transmitted in a wider aspect ratio, it is referred to as "EDTV-Wide."

Source: from Federal Standard 1037C

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Automobile racing

... vehicles from high-priced road cars, with Auto Union[?], Mercedes-Benz, Delahaye[?] and Bugatti constructing massively-powerful, streamlined vehicles that produced up to ...