Sigmasense, Llc.

Sarah Marie Derichs

Daniel Keith Van Ostrand

Richard Stuart Seger, Jr

Michael Shawn Gray

Kevin Joseph Derichs

Hans Howard Eilers

Patrick Troy Gray

Phuong Huynh

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; determining, based on the positive capacitance variation data and the negative capacitance variation data, an upper threshold and a lower threshold; generating compensated capacitance image data, based on the upper threshold and the lower threshold; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.

Enhanced capacitance touch screen display and methods for use therewith

Compensated enhanced capacitance touch screen display and methods for use therewith

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; determining, based on the positive capacitance variation data and the negative capacitance variation data, an upper threshold and a lower threshold; generating compensated capacitance image data, based on the upper threshold and the lower threshold, to compensate for noise in the capacitance image data; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.

Enhanced capacitance touch screen display with noise compensation and methods for use therewith

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes of a sensor layer adjacent to a compressible dielectric layer adjacent; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; and processing the negative capacitance variation data to determine a compressive touch condition of the touch screen display by a non-conductive object.

Enhanced mutual capacitance touch screen display with compressive touch detection and methods for use therewith

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; and processing the positive capacitive data and the negative capacitance data to determine a shape of an object on the touch screen display.

Enhanced mutual capacitance touch screen display with shape detection and methods for use therewith

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; identifying noise in the capacitance image data based on the positive capacitance variation data and the negative capacitance variation data; determining, based on the noise, an upper threshold and a lower threshold; generating compensated capacitance image data, based on the upper threshold and the lower threshold, to compensate for the noise in the capacitance image data; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.

Enhanced mutual capacitance touch screen display with noise compensation and methods for use therewith

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; identifying a presence of water on the touch screen display based on the positive capacitance variation data, and the negative capacitance variation data; generating compensated capacitance image data to compensate for effects of the water on the touch screen display in the capacitance image data; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.

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Buda, TX, United States of America

Sarah Marie Derichs