Method of increasing the spatial resolution of touch sensitive devices
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United States of America Patent
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Apr 26, 2011
Grant Date -
Feb 16, 2006
app pub date -
Aug 15, 2005
filing date -
Aug 16, 2004
priority date (Note) -
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Abstract
Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised.
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