Improved-definition television (IDTV) or enhanced-quality television transmitters and receivers exceed the performance requirements of the

NTSC standard The first American standard for analog television broadcast was developed by National Television System Committee (NTSC)National Television System Committee (1951–1953), Report and Reports of Panel No. 11, 11-A, 12–19, with Some supplementa ...

, while remaining within the general parameters of NTSC emissions standards. IDTV improvements may be made at the

television Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertising, ...

transmitter or receiver. Improvements include enhancements in encoding,

digital Digital usually refers to something using discrete digits, often binary digits. Technology and computing Hardware *Digital electronics, electronic circuits which operate using digital signals ** Digital camera, which captures and stores digital ...

filtering, scan interpolation, interlaced

line Line most often refers to: * Line (geometry), object with zero thickness and curvature that stretches to infinity * Telephone line, a single-user circuit on a telephone communication system Line, lines, The Line, or LINE may also refer to: Art ...

scanning, and

ghost A ghost is the soul or spirit of a dead person or animal that is believed to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to re ...

cancellation. IDTV improvements must allow the TV signal to be transmitted and received in the standard 4:3 aspect ratio.

References

{{FS1037C Television technology

See also

References