Pointing device with prevention of unintended input
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United States of America Patent
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Nov 17, 2015
Grant Date -
Feb 11, 2010
app pub date -
Jun 5, 2009
filing date -
Aug 5, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pointing device such as a scrolling device or trackball, including a ball formed at least partially from an electrically conductive material, and a PCB including a capacitive proximity sensor, wherein movement data representative of ball movement is communicated by a controller to an interface such as a monitor screen, and wherein an electrical switch is actuable in response to the proximity of the sensed object to the ball, such that when a user is not in contact with or in close proximity to the ball, movement data will not be communicated by the controller to the interface.
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