Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1984-11-30
1987-08-11
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358283, 358293, 382 10, H04N 100, H04N 140, H04N 110
Patent
active
046865772
ABSTRACT:
An original reading apparatus has a reader and a printer. When original signals of a unit detection region of, for example, 4 bits (main scanning direction ).times.4 lines (subscanning direction) continuously represent a white region, an original is detected. Latch circuits latch original signals corresponding to four corners of an original, and AND gates calculate the AND products of these signals with corresponding data stored in RAMs to determine the original region.
REFERENCES:
patent: 4439790 (1984-03-01), Yoshida
patent: 4504969 (1985-03-01), Suzuki et al.
patent: 4551768 (1985-11-01), Tsuchiya et al.
Britton Howard W.
Canon Kabushiki Kaisha
Peng John K.
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