Abstract: A method of detecting a user touch on a capacitive touch screen may include generating drive signals for drive lines of the capacitive touch screen. The drive signals are encoded by codes that respectively specify polarities of the drive signals at different times. The codes may include a background code that specifies the same polarity for the drive signals, and the remaining codes are orthogonal to the background code and specify that half of the drive signals have a first polarity and half of the drive signals have a second opposite polarity. The method includes measuring output signals at sensing lines of the capacitive touch screen, which include values corresponding to the codes for the drive signals, and decoding the output signals to determine a touch has occurred based on the values of the output signals, by excluding values corresponding to the background code.

Abstract: Disclosed are segmented sensors and related systems, methods, and devices. In one embodiment, a capacitive sensor includes a first gird of sensor lines, a second grid of sensor lines, and an isolating region defined between the first grid of sensor lines and the second grid of sensor lines. Also disclosed are touch controllers configured for operable coupling to, and detecting touches at, a segmented sensor, and related systems, methods, and devices. In one embodiment, connectors of a touch controllers are configured for operable coupling to sensing lines from different segments of a segmented sensor and touch controllers are configured to detect touches at the different segments.

Abstract: Disclosed are segmented sensors and related systems, methods, and devices. In one embodiment, a capacitive sensor includes a first gird of sensor lines, a second grid of sensor lines, and an isolating region defined between the first grid of sensor lines and the second grid of sensor lines. Also disclosed are touch controllers configured for operable coupling to, and detecting touches at, a segmented sensor, and related systems, methods, and devices. In one embodiment, connectors of a touch controllers are configured for operable coupling to sensing lines from different segments of a segmented sensor and touch controllers are configured to detect touches at the different segments.

Abstract: Disclosed is a touch position sensor. Force detection circuitry can be included with the position sensor, for example, to determine an amount of force applied to a touch panel of the sensor.

Abstract: Disclosed is a touch position sensor. Force detection circuitry can be included with the position sensor, for example, to determine an amount of force applied to a touch panel of the sensor.