Recording data generating device having output allowance/prevent

Details Recording data generating device having output allowance/prevent Recording data generating device having output allowance/prevent

1995-05-15

1998-04-07

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Auxiliary signal

358432, H04N 1415

Patent

active

057370931

ABSTRACT:
To record image data in increased number of gradations while forming a unitary data with a small number of dots, two lines worth of image dot data are transferred to shift registers from an image dot data memory. Unitary data of 2-by-2 dot matrix data framed by a window are sequentially read from the shift registers while shifting the window in a main-scanning direction. The unitary data is converted to 16-bit recording data. A set mode register has an output prevention mode and an output allowance mode. When the output prevention mode is set, the recording data is not outputted with regard to one of the two dot lines.

REFERENCES:
patent: 3804975 (1974-04-01), Abe
patent: 5073966 (1991-12-01), Sato
patent: 5452104 (1995-09-01), Lee
patent: 5479165 (1995-12-01), Nakayama
patent: 5555511 (1996-09-01), Ooi
patent: 5608654 (1997-03-01), Matsunoshita

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