Capacitive touch sensor with independently adjustable sense channels
First Claim
Patent Images
1. A touch sensing system, comprising:
- a touch surface; and
a touch sensor, comprising;
an array of electrodes configured to capacitively couple to a touch in proximity with the touch surface; and
circuitry coupled to each electrode via a channel and configured to sense signals present on the electrodes, the circuitry configured to independently adjust a sensed response of each electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
Touch sensing systems and methods employ a touch surface and a touch sensor. An array of electrodes of the touch sensor is configured to capacitively couple to a touch in proximity with the touch surface. Circuitry is coupled to each electrode via a channel and configured to sense signals present on the electrodes. The circuitry is configured to independently adjust a sensed response of each electrode. For example, the circuitry may be configured to adjust a gain of each channel, an offset of each channel, or a gain and offset of each channel.
237 Citations
34 Claims
-
1. A touch sensing system, comprising:
-
a touch surface; and
a touch sensor, comprising;
an array of electrodes configured to capacitively couple to a touch in proximity with the touch surface; and
circuitry coupled to each electrode via a channel and configured to sense signals present on the electrodes, the circuitry configured to independently adjust a sensed response of each electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method for use with a touch sensor comprising a touch surface, the method comprising:
-
measuring signals present on electrodes of an array of electrodes, the electrodes configured to capacitively couple to a touch in proximity with the touch surface; and
independently adjusting a sensed response of each electrode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A system comprising a touch sensor having a touch surface, the system comprising:
-
means for measuring signals present on electrodes of an array of electrodes, the electrodes configured to capacitively couple to a touch in proximity with the touch surface; and
means for independently adjusting a sensed response of each electrode. - View Dependent Claims (34)
-
Specification