Chrominance-luminance signal separation for off-air video record

Details Chrominance-luminance signal separation for off-air video record Chrominance-luminance signal separation for off-air video record

1975-08-15

1977-01-11

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 4, 358 37, H04N 9535

Patent

active

040030792

ABSTRACT:
An off-the-air color video recorder employs frequency interleaved chroma and luminance signal information for purposes of bandwidth compression. During playback, the interleaved luminance and chroma signal information are combed apart, the luminance signal information, however, being subjected to at least one additional stage of comb filtering, preferably limited to that part of the playback spectrum containing the interleaved signal information. With such a technique, playback luminance signal information is comprised of two spectrum parts, one being, say, half the signal resolution of the other.

REFERENCES:
patent: 3764739 (1973-10-01), Faroudja
patent: 3798353 (1974-03-01), Illetschko
patent: 3812523 (1974-05-01), Narahara
patent: 3872498 (1975-03-01), Pritchard

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