Fixed point method of video display scaling
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United States of America Patent
Stats
-
Sep 22, 1992
Grant Date -
N/A
app pub date -
May 25, 1988
filing date -
May 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of scaling data between memories of different horizontal sizes by calculating an increment expressed as an integer and a fraction relating the horizontal memory sizes, multiplying the fraction by the dynamic range of a fraction portion counter, and successively adding the integer portion in an integer portion counter and the fraction portion in the fraction portion counter, with a carry to the integer portion counter when the fraction portion counter overflows. The corresponding points in the memories are selected based upon the total count in the integer portion counter.
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