Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1975-08-13
1977-09-06
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
H04N 140, H04N 712
Patent
active
040472280
ABSTRACT:
The present invention provides a receiving system, for a facsimile system wherein when a large portion of a scanning line of an original pattern consists of only black (or only white), that portion is not transmitted in order to reduce the transmission time. The received facsimile signal has three families, synchronizing signals, group weight indicator signals and picture signals. The present receiver comprises: a means receiving said synchronizing signal for discriminating said synchronizing signal; a means receiving said group weight indicator signals following said synchronizing signal, for storing said group weight indicator signals in a temporary memory; a means reading said group weight indicator signals from said temporary memory for deciphering the signals thus read, prior to recording said picture signals on a recording paper; a means performing predetermined addition on a selective address register, based on the result of said deciphering; a means immediately distributing and applying picture signals to selected recording elements in accordance with addressing by said selective address register; a means recording said picture signals on a recording paper, and; a means performing auxiliary scanning during a period for receiving said synchronizing signal and said group weight indicator signals.
REFERENCES:
patent: 3840698 (1974-10-01), Hinoshita
patent: 3895184 (1975-07-01), Komura
Hagiya Hiroshi
Yagishita Tohmi
Britton Howard W.
OKI Electric Industry Co., Ltd.
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