Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1993-06-08
1994-04-05
Braun, Fred L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
355326R, 358455, 358456, H04N 140, G06F 1568
Patent
active
053010396
ABSTRACT:
An image processing apparatus has elements for inputting pixel data and for processing the input pixel data. The processing element includes a device for quantizing the input pixel data to produce binary data, and a memory device for receiving the binary data as an address to produce an output indicating image tone of the input pixel data. Preferably, the memory receives as one address a plurality of binary data, corresponding to a plurality of input pixel data. A delay element can be included to enable the memory to receive the plurality of binary data at a single time. In particular, the pixel data tonality can be discriminated by using one or more high-order bits of input multi-bit pixel data.
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Braun Fred L.
Canon Kabushiki Kaisha
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