Touch sense control circuit with noise suppression

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United States of America Patent

PATENT NO 11789555
SERIAL NO

17446603

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A touch screen display includes a display, a video graphics processing module, electrodes integrated into at least a portion of the display, and drive-sense circuits coupled to the electrodes. The drive-sense circuits, when enabled and concurrent with the display rendering frames of data into the visible images, detect changes in electrical characteristics of electrodes. At least some drive-sense circuits monitor sensor signals on at least some electrodes. A sensor signal includes a drive signal component and a receive signal component. The at least some drive-sense circuits generate the drive signal components of the sensor signals. The receive signal component is a representation of a change in an electrical characteristic of an electrode of the at least some electrodes when a corresponding drive signal component is applied to the electrode. The change in the electrical characteristic of the electrode is indicative of a proximal touch to the touch screen display.

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Patent Owner(s)

  • SIGMASENSE, LLC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gray, Patrick Troy Cedar Park, US 213 415
Morrison, Gerald Dale Redmond, US 192 173
Seger,, Jr Richard Stuart Belton, US 242 192
Van, Ostrand Daniel Keith Leander, US 281 275

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