Atmel Corporation

Predrag D Vukovic

Martin John Simmons

Darren Golbourn

Thomas Myers

Andrew Hersee

Edward Cowd

Weidong He

Nicholas St Hill

In one embodiment, a method includes receiving, from a touch sensor of a device, one or more signals corresponding to touch or proximity inputs within a touch-sensitive area of the touch sensor. The touch sensor comprising one or more nodes. The method also includes applying an offset to one or more of the signals. The offset corresponding to a variation in a distance between a touch panel and a ground plane or display of the device. The method also includes determining whether a touch input to the touch sensor has occurred based at least in part on the signals and the offset as applied.

Touch panel deformation compensation

In one embodiment, a method of compensating for retransmission effects in a touch sensor includes, in response to measuring a touch input on a display, generating a first matrix comprising a plurality of first measurements associated with a plurality of capacitive nodes of a touch sensor. The method also includes estimating an amount of retransmission associated with the touch input by generating a first vector comprising one or more second measurements associated with one or more first electrode lines of the touch sensor, generating a second vector comprising one or more third measurements associated with one or more second electrode lines of the touch sensor, and calculating an outer product of the first and second vectors. The method includes generating a revised indication of the touch input based on the first matrix and the estimated amount of retransmission.

Method of compensating for retransmission effects in a touch sensor

In one embodiment, a method for restructuring distorted capacitive touch data includes receiving an array of touch amplitude data associated with an electrode line of a capacitive touch sensor in response to a touch on a touch sensitive display. The method also includes detecting a distortion in the array of touch amplitude data and calculating, in response to detecting the distortion, a corrected array of touch amplitude data such that the corrected array of touch amplitude data represents the touch on the touch sensitive display.

Method for restructuring distorted capacitive touch data

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Chandlers Ford, United Kingdom

Predrag D Vukovic