Pay TV system

Details Pay TV system Pay TV system

1978-08-03

1981-01-13

Buczinski, Stephen C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358117, 358121, 358122, H04N 716

Patent

active

042452465

ABSTRACT:
An apparatus for coding video information arranged in a plurality of lines comprises means for selectively inverting video information in groups of lines. A random timing device controls the number of lines in successive groups. The video signals in one group are inverted and the video signals in the succeeding group are non-inverted.

REFERENCES:
patent: 3777053 (1973-12-01), Wittig et al.
patent: 3801732 (1974-04-01), Reeves
patent: 3919462 (1975-11-01), Hartung et al.
patent: 3924059 (1975-12-01), Horowitz
patent: 4022972 (1977-05-01), Pires
patent: 4025948 (1977-05-01), Loshin
patent: 4081832 (1978-03-01), Sherman
patent: 4115807 (1978-09-01), Pires

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