Facsimile circuit

Details Facsimile circuit Facsimile circuit

1978-06-22

1980-06-17

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 140

Patent

active

042086779

ABSTRACT:
A facsimile circuit for a transmitter or a receiver, having an automatic switch-over between a photo and a text information signal processing. The more or less analog changing, photo information signal and the pulse-shaped changing, text information signal are converted into a binary signal suitable for supply to a reproduction device. A detection circuit, which performs a dual signal differentiation for detecting the presence of photo or text information controls a switch-over device through which the facsimile signal becomes available for transmission and/or reproduction after it has passed through an analog-binary or pulse-binary signal conversion circuit respectively.

REFERENCES:
patent: 2255408 (1941-09-01), Carlisle
patent: 3622698 (1971-11-01), Richeson, Jr. et al.
patent: 3723649 (1973-03-01), Pitegoff et al.
patent: 4084196 (1978-04-01), Tisue et al.

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