Frequency selective video signal compression

Details Frequency selective video signal compression Frequency selective video signal compression

1983-08-26

1986-02-25

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358166, 358162, 358243, H04N 574, H04N 514

Patent

active

045730814

ABSTRACT:
A projection-type television system includes apparatus for providing frequency selective compression of video signals. Low frequency video signal components representative of white image information above a threshold level are subjected to relatively greater compression compared to high frequency video signal components representative of white image information.

REFERENCES:
patent: 3009989 (1961-11-01), Ahrons et al.
patent: 3017453 (1962-01-01), Raibourn
patent: 3983576 (1976-09-01), Shanley et al.
patent: 4038688 (1977-07-01), Chow et al.
patent: 4075661 (1978-02-01), Heffron
patent: 4296435 (1981-10-01), d'Hautecourt et al.
patent: 4365266 (1982-12-01), Lagoni
patent: 4502076 (1985-02-01), Cluniat et al.
Service Data Bulletin for RCA Projection Television System Model PGR 200/300, (1982 PTV-3).

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