SPATIALLY ENCODED SENSOR ELECTRODES
First Claim
1. A sensing device comprising:
- a first plurality of sensor electrodes; and
a second plurality of sensor electrodes, a first sensor electrode of the second plurality of sensor electrodes overlapping a first subset of the first plurality of sensor electrodes and comprising a plurality of apertures arranged according to a first set of codes and the first subset of the first plurality of sensor electrodes.
2 Assignments
0 Petitions
Accused Products
Abstract
A capacitive sensing device has a first plurality of sensor electrodes, and a second plurality of sensor electrodes overlapping the first plurality of sensor electrodes. A first sensor electrode of the second plurality of electrodes overlaps a first subset of the first plurality of electrodes and comprises apertures disposed according to first codes. The first codes comprise first and second coefficients and along one of the first plurality of sensor electrodes. Each aperture may correspond to one of the first coefficients. The capacitive sensing device further comprises a processing system coupled to the first and second plurality of sensor electrodes. The processing system may be configured to receive resulting signals with the second plurality of sensor electrodes to determine positional information for an input object within a sensing region of the capacitive sensing device.
6 Citations
20 Claims
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1. A sensing device comprising:
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a first plurality of sensor electrodes; and a second plurality of sensor electrodes, a first sensor electrode of the second plurality of sensor electrodes overlapping a first subset of the first plurality of sensor electrodes and comprising a plurality of apertures arranged according to a first set of codes and the first subset of the first plurality of sensor electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A processing system for sensing device comprising:
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transmitter circuitry configured to drive transmitter signals onto a first subset of a first plurality of sensor electrodes; receiver circuitry configured to receive resulting signals corresponding to the transmitter signals with a second plurality of sensor electrodes, a first sensor electrode of the second plurality of sensor electrodes overlapping the first subset of the first plurality of sensor electrodes and comprising a first plurality of apertures arranged according to a first set of codes and the first subset of the first plurality of sensor electrodes; and a determination module configured to determine first positional information for an input object based on the resulting signals. - View Dependent Claims (12, 13, 14)
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15. An input device comprising:
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a first plurality of sensor electrodes; a second plurality of sensor electrodes, a first sensor electrode and a second sensor electrode of the second plurality of sensor electrodes overlap a first subset of the first plurality of sensor electrodes and comprise first apertures arranged according to a first set of codes and the first subset of the first plurality of sensor electrodes; and a processing system coupled to the first and second plurality of sensor electrodes, the processing system configured to; drive transmitter signals onto the sensor electrodes of the first subset of the first plurality of sensor electrodes; receive first resulting signals with the first sensor electrode and the second sensor electrode of the second plurality of sensor electrodes, the first resulting signals comprising effects corresponding to the transmitter signals; and determine first positional information for an input object based on the first resulting signals. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification