Facsimile and static presentation processing – Facsimile – Auxiliary signal
Patent
1995-04-05
1998-09-01
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Auxiliary signal
3582611, 382232, 382246, H04N 1415
Patent
active
058018417
ABSTRACT:
A pixel block is coded by both of a quadrature transform coding section and a block truncation coding section. A code amount counter determines a first code amount of one-block coded data produced by the quadrature transform coding section. A code amount judgment section compares the first code amount with a threshold that is smaller than or equal to a second code amount of one-block coded data produced by the block truncation coding section, and produces discrimination information indicating a comparison result. A selector selects the coded data that is output from the quadrature transform coding section if the first code amount is smaller than the threshold, and selects the coded data that is output from the block truncation coding section if the first code amount is larger than the threshold. A storage section stores the discrimination information for each pixel block and the coded data that is output from the selector and corresponds to the discrimination information.
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Coles Sr. Edward L.
Fuji 'Xerox Co., Ltd.
Nguyen Madeleine A V
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