Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1994-07-06
1997-04-01
Frahm, Eric
Facsimile and static presentation processing
Facsimile
Recording apparatus
358300, 358456, 358462, H04N 140, H04N 129
Patent
active
056172168
ABSTRACT:
An image formation device includes a matrix formation circuit, a pixel identification circuit, a binarization processing circuit, a halftone processing circuit, and a synthesizing circuit. The matrix formation circuit forms a data matrix window successively shifting. The pixel identification circuit determines whether an objective pixel is a binary or a halftone by determining whether each of the pixel signals in the data matrix window is a binary or a halftone. If the objective pixel is determined to be a binary, the binarization processing circuit processes the objective pixel signal. If the objective pixel is determined to be a halftone, the halftone processing circuit processes the objective pixel signal. These objective pixel signals are synthesized to form the image signal fed into a laser printing system.
REFERENCES:
patent: 4707745 (1987-11-01), Sakano
patent: 4953013 (1990-08-01), Tsuji et al.
patent: 4996603 (1991-02-01), Kanemitsu et al.
patent: 5001576 (1991-03-01), Tanaka et al.
patent: 5408336 (1995-04-01), Ishida
patent: 5432611 (1995-07-01), Haneda et al.
Frahm Eric
NEC Corporation
LandOfFree
Image formation device with binary/halftone pixel determination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image formation device with binary/halftone pixel determination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image formation device with binary/halftone pixel determination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-543705