Transmitting system for facsimile and the like

Details Transmitting system for facsimile and the like Transmitting system for facsimile and the like

1975-08-13

1977-08-23

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 712

Patent

active

040443825

ABSTRACT:
In scanning an original picture, if a large portion of a scanning line consists of only white (or only black), that portion is not transmitted. Thus, the transmitting time of a picture can be reduced. The facsimile signal consists of a synchronizing signal, a group weight indicator signal and an image signal. The image signals for each scanning line are applied only once to an operational treating circuit, so as to immediately evaluate the image signals for producing group weight indicator signals and the picture signals and for storing the signals thus produced in corresponding storing means. The synchronizing signals are stored separately in a storing means, so as to be read out from the storing means and delivered to a transmission circuit, whereby, said signal arrays are continuously read from the storing means and successively delivered to the transmission circuit.

REFERENCES:
patent: 3840698 (1974-10-01), Hinoshita
patent: 3895184 (1975-07-01), Komura
patent: 3916095 (1975-10-01), Weber

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