RECOGNIZING THE MOTION OF TWO OR MORE TOUCHES ON A TOUCH-SENSING SURFACE
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United States of America Patent
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Issued Date -
Feb 26, 2009
app pub date -
Aug 21, 2008
filing date -
Aug 22, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and method for recognizing the motion of multiple touches on a touch-sensing surface. In one embodiment, the touch-sensing surface is divided into multiple logical zones. Each of the logical zones has a configurable granularity. The apparatus and method detects multiple substantially simultaneous touches on the surface, and tracks the motions of the touches across the logical zones to identify a multi-touch gesture.
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