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 inc...

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Bibliographic Details
Main Authors Gray, Patrick Troy, Van Ostrand, Daniel Keith, Huynh, Phuong, Derichs, Kevin Joseph, Eilers, Hans Howard, Seger, Jr., Richard Stuart, Derichs, Sarah Marie, Gray, Michael Shawn
Format Patent
LanguageEnglish
Published 26.07.2022
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary: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.
Bibliography:Application Number: US202117345461