Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-07-30
1982-01-12
Britton, Howard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
73618, 358112, 358138, 364515, H04N 718
Patent
active
043108539
ABSTRACT:
Encoded data is sequentially read into a shift register having a number of stages larger than the largest inter-scan "void" or "hole" to be filled. A priority encoder determines the length of the void to be filled, and the amplitude difference of successive scan data samples is evaluated. For each display picture element in the void, a weighting select PROM determines an appropriate weighting factor, based on the size of the void to be filled. Separate positive differential and negative differential memories are thereby energized to produce, for each display picture element in the hole, a simulated display picture data element.
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Britton Howard
Ciamporcero, Jr. Audley A.
Technicare Corporation
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