Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1985-03-11
1987-02-17
Groody, James J.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358283, 382 52, 382 53, 307358, H04N 140
Patent
active
046444106
ABSTRACT:
A dynamic threshold binary generator to generate a binary video image having a standard video signal fed to three positive peak detectors and three negative peak detectors, each group of three connected through respective OR gates to a sample and hold circuit then fed to an averaging circuit which then feeds to a comparator which also receives the standard video signal delayed, to then feed out the binary video image signal.
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Groody James J.
Olds Theodore W.
R. A. McDonald
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