Method and apparatus for reducing jitter in a digitizer or other transducer
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United States of America Patent
Stats
-
Dec 13, 1988
Grant Date -
N/A
app pub date -
Apr 30, 1986
filing date -
Apr 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of digitially filtering unfiltered values from a transducer to eliminate jitter compares a new unfiltered value against the previous filtered value. If the difference exceeds a selected amount the unfiltered amount is taken as and replaces the filtered value. If the difference is less than the selected amount then the new filtered amount is calculated from sliding percentages of the old filtered value added to the new unfiltered value. The two percentages add to one hundred percent, and linearly reflect what percentage the difference is of the selected amount.
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