Method and apparatus for unwinding image data
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United States of America Patent
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Apr 23, 1996
Grant Date -
N/A
app pub date -
Jun 10, 1992
filing date -
Jun 10, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Method and apparatus for converting image data from row format into column format and a printer incorporating the same. A conversion circuit, which is responsive to writes to a first address space, is provided for converting the image data from the row format into the column format. A CPU writes the row format image data to the first address space whereupon the conversion circuit converts it to the second format. The CPU then writes image data to a second address space. In accordance with an unwind flag set by the CPU, either the converted image data or the original image data is stored in a memory. After the data has been written to memory, the CPU initiates a DMA transfer of the image data to a printer engine.
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Cited Art Landscape
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