Computer input device for automatically scrolling
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United States of America Patent
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Jul 10, 2012
Grant Date -
Mar 10, 2011
app pub date -
Nov 15, 2010
filing date -
Jul 31, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A computer input device includes a body and a trace-detecting module coupled to the body. The body has a micro control unit (MCU), and the trace-detecting module has at least a light pervious area, and a trace-detecting unit. The trace-detecting unit further has at least a light source and a sensor. The sensor senses a reflected light beam caused by movement of a user's digit movement on the light pervious area at a velocity which can be sensed by the sensor. If the velocity exceeds a threshold stored in the MCU, the MCU executes automatically scrolling.
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