Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 28, 2008
Patent Application Number
11510103
Date Filed
August 25, 2006
Patent Primary Examiner
Patent abstract
A pointing device such as an optical mouse is equipped with a top surface lift detection system that is able to provide lift detection whether the pointing device sits on a transparent structure or on an opaque structure. The top surface lift detection system relies on the separate detection of a light beam that reflects off the surface upon which the pointing device sits to detect lift whether the pointing devices sits on an opaque surface or a transparent surface.
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