Raster monitor for video game displays
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United States of America Patent
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-
Mar 21, 1989
Issued Date -
N/A
app pub date -
Sep 22, 1986
filing date -
Feb 27, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A monitoring circuit incorporated into a video game display device is operated responsively to first and second non-overlapping clock pulses and monitors raster line status in comparison to a stored raster address and provides a high speed raster scan interrupt when that address is achieved, triggering a SPRITE or other feature(s) display.
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