Encoding module for a cursor input device
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United States of America Patent
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-
Oct 1, 2002
Grant Date -
N/A
app pub date -
Dec 2, 1999
filing date -
Dec 4, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An encoding module for a cursor input device includes an optical encoder roller rotatable relative a roller supporting frame about a horizontal axis, a base member having the roller supporting frame on the base member such that the roller supporting frame is movable vertically toward and away from the base member, a switch mounted on the base member and disposed below a switch actuating block of the roller supporting frame such that downward movement of the roller supporting frame relative to the base member will enable the switch actuating block to engage the switch. The roller engages intermittently the roller supporting frame to permit rotation of the roller relative to the roller supporting frame in steps.
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