Display controller for detecting predetermined drawing command among a plurality of drawing commands
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United States of America Patent
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May 24, 1988
Issued Date -
N/A
app pub date -
Jan 27, 1987
filing date -
May 13, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The display controller has a drawing processor for forming an address signal and a data signal to be supplied to a refreshing memory by processing a drawing command supplied thereto, and a digital comparator for comparing an address signal outputted from the drawing processor with an address signal set beforehand. An output of the digital comparator is utilized for referring to the drawing command to be processed. Thus the drawing command which produces a particular one of a plurality of graphic patterns forming a display on a display device can be extracted easily.
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