Method and system for bandwidth-compressed transmission of a vid

Details Method and system for bandwidth-compressed transmission of a vid Method and system for bandwidth-compressed transmission of a vid

1975-05-02

1977-10-18

Safourek, Benedict V.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 932

Patent

active

040549097

ABSTRACT:
Bandwidth-compressed transmission of an NTSC-type video signal is performed by converting the analog composite NTSC signals to digital signals and then orthonormally transforming the digital signals corresponding to each horizontal line period of the composite video signal, in the line direction. The transformed, digital signals then are processed to obtain the sum and difference thereof, for each corresponding horizontal line period with respect to those transformed digital signals corresponding to the next preceding horizontal line period. The sum and difference signals then are predictively coded and sequentially transmitted.

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patent: 3720780 (1973-03-01), Remy et al.
patent: 3720786 (1973-03-01), Cutler
patent: 3736373 (1973-05-01), Pease
patent: 3761613 (1973-09-01), Limb
patent: 3767847 (1973-10-01), Haskell et al.
patent: 3769451 (1973-10-01), Connor
patent: 3773971 (1973-11-01), Sainte-Beuve
patent: 3784737 (1974-01-01), Waenner
patent: 3803348 (1974-04-01), Limb et al.
patent: 3843940 (1974-10-01), Ishiguro et al.
patent: 3984626 (1976-10-01), Mounts et al.
patent: 3996607 (1976-12-01), Heitman

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