Adaptive high dynamic range surface capacitive touchscreen controller

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United States of America Patent

PATENT NO 8847896
APP PUB NO 20120062500A1
SERIAL NO

12878796

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Abstract

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A system for controlling a touch screen. A touch screen element having a plurality of contacts, such as one contact electrode at each of four corners. A multiplexer coupled to the touch screen element for forming a plurality of connections, such as various combinations of the contact electrodes to allow measurements to be made of the impedance of the touch screen element from the left side to the right side, from the top to the bottom, and do forth. A touch screen processor coupled to the touch screen element for determining an oscillation frequency of the touch screen element as a function of the electrode connections.

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Patent Owner(s)

  • SYNAPTICS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anumula, Sudhaker San Diego, US 2 4
Miller, Mark E Mission Viejo, US 32 725
Sneed, George C Irvine, US 6 164
Vadapalli, Ramakrishna Y Hyderabad, IN 1 19

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