Fine-coarse positioning control system with easy adjustment
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United States of America Patent
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-
Jul 8, 1986
Grant Date -
N/A
app pub date -
Oct 23, 1984
filing date -
Oct 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method are disclosed for precisely positioning a movable member to a desired fine position after a selected coarse position is reached. In a preferred embodiment of the invention a processor-controlled typewheel servo control system is responsive to a command signal for a selected coarse position for selectively utilizing from a memory circuit preselected stored adjustment information for the selected coarse position comprised of an associated coarse position count and quadrant information related to the sinusoids generated by an optical encoder in order to make a precise fine position adjustment in the position of a typewheel after the selected coarse position is reached for that typewheel.
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Cited Art Landscape
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