Color facsimile signal transmission system

Details Color facsimile signal transmission system Color facsimile signal transmission system

1980-04-14

1981-06-16

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 15, 358262, H04N 146, H04N 936, H04N 141

Patent

active

042741114

ABSTRACT:
At the transmitting side, a composite signal is synthesized from a color signal of a higher level and a black-and-white signal of a lower level, the composite binary signal is converted into a three-value signal, and this three-value signal is modulated and transmitted. At the receiving side, the received signal is demodulated and converted into a binary signal, its level is detected, and the color signal and the black-and-white signal are separated.

REFERENCES:
patent: 3538246 (1970-11-01), Macovski et al.
patent: 3795765 (1974-03-01), DeGrout et al.

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