Extended-definition television
- Extended-definition television
Extended-definition television (EDTV) is television with
#improvements to the U.S. standard National Television System Committee (NTSC) television system;
#improvements that are receiver-compatible with the standard NTSC television system;
#improvements that modify the standard NTSC television system emission standards.
EDTV improvements may include
* a wider aspect ratio,
* a higher picture definition than NTSC definition, and
* any of the improvements used in improved-definition television (IDTV).
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.
ee also
* Federal Standard 1037C
References
Wikimedia Foundation.
2010.
Look at other dictionaries:
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