Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1993-06-04
1995-02-14
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358456, 358466, 382 52, H04N 140
Patent
active
053900308
ABSTRACT:
A peak holding circuit includes a peak holding register for holding a current peak value, and an operation circuit for comparing the current peak value with an input signal and for performing a predetermined operation on the current peak value and the input signal when the input signal has a level greater than the current peak value, so that the current peak value is renewed and written into the peak holding register. A video processing unit which uses the above-mentioned peak holding circuit is also provided.
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Coles Sr. Edward L.
Ricoh & Company, Ltd.
Stoll Thomas L.
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