SYSTEMS AND METHODS FOR TOUCH PANEL SENSING AND INDICATING
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United States of America Patent
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app pub date -
Feb 16, 2012
filing date -
Dec 9, 2011
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Abstract
One embodiment of the present invention relates to a system that includes a touch panel having a plurality of sensing pad cells each having a touch sensing element and a touch indicator element, and a controller having a plurality of input/output (I/O) pins with a dedicated I/O pin for each of the plurality of sensing pad cells. The controller is configured such that each dedicated I/O pin is configured to sample a touch sensing element of a respective sensing pad cell during a sampling time period and provide a touch indicator feedback signal to a touch indicator element of the respective sensing pad cell during a touch indication time period
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