Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1993-05-12
1995-08-29
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
395115, G06K 1500
Patent
active
054465605
ABSTRACT:
A converter for reading image bands in block order and outputting the image bands in raster order or vice versa is provided, including a band memory for storing a number of pixels equal to the number of pixels in an image band, an array of counters coupled to an address input of the band memory, a carry signal router, and a state machine. The carry signal router routes the carry out lines of the counters to the carry in lines of the counters in a pattern where the counters are ordered from a most significant to a least significant and the carry signal router ensures that each of the carry out lines of each counter is coupled to the carry in lines of the next most significant counter, with the carry out line of the most significant counter being input to a state machine and the carry in line of the least significant counter being a clock or divided clock input. The state machine, when clocked by the carry out of the most significant counter, changes the ordering of the counters, according to whether the input data is to be converted from block-to-raster or raster-to-block ordering.
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"L64765 Color and Raster-Block Converter", LSI Logic Corporation, Pre-release Version, pp. 1-23 (May 15, 1991).
"L64765 Color and Raster-Block Converter", LSI Logic Corporation, Datasheet Errata (Aug. 8, 1991).
Albert Philip H.
Brinich Stephen
Ricoh Company, Ltd
Ricoh Corporation
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