Capacitive sensor device
First Claim
1. A capacitive sensor device comprising:
- a first sensor electrode;
a second sensor electrode; and
a processing system coupled to said first sensor electrode and said second sensor electrode, said processing system configured to;
acquire a first capacitive measurement by emitting and receiving a first electrical signal with said first sensor electrode,acquire a second capacitive measurement by emitting and receiving a second electrical signal, wherein one of said first and second sensor electrodes performs said emitting and the other of said first and second sensor electrodes performs said receiving, wherein said first and second capacitive measurements are non-degenerate, anddetermine first positional information using said first and second capacitive measurements.
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Accused Products
Abstract
A capacitive sensor device comprises a first sensor electrode, a second sensor electrode, and a processing system coupled to the first sensor electrode and the second sensor electrode. The processing system is configured to acquire a first capacitive measurement by emitting and receiving a first electrical signal with the first sensor electrode. The processing system is configured to acquire a second capacitive measurement by emitting and receiving a second electrical signal, wherein one of the first and second sensor electrodes performs the emitting and the other of the first and second sensor electrodes performs the receiving, and wherein the first and second capacitive measurements are non-degenerate. The processing system is configured to determine positional information using the first and second capacitive measurements.
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Citations
20 Claims
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1. A capacitive sensor device comprising:
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a first sensor electrode; a second sensor electrode; and a processing system coupled to said first sensor electrode and said second sensor electrode, said processing system configured to; acquire a first capacitive measurement by emitting and receiving a first electrical signal with said first sensor electrode, acquire a second capacitive measurement by emitting and receiving a second electrical signal, wherein one of said first and second sensor electrodes performs said emitting and the other of said first and second sensor electrodes performs said receiving, wherein said first and second capacitive measurements are non-degenerate, and determine first positional information using said first and second capacitive measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of determining positional information using a capacitive sensor device comprising a first sensor electrode and a second sensor electrode, said method comprising:
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emitting and receiving a first electrical signal with said first sensor electrode to acquire a first capacitive measurement; emitting and receiving a second electrical signal to acquire a second capacitive measurement, wherein one of said first and second sensor electrodes performs said emitting and the other of said first and second sensor electrodes performs said receiving, and wherein said first and second capacitive measurements are non-degenerate; and determining positional information using said first and second capacitive measurements. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification