Systems and methods for voltage gradient sensor devices
First Claim
1. A processing system for an input device, the processing system comprising:
- a transmitter module including transmitter circuitry, the transmitter module configured to drive a first end of a transmitter electrode such that the transmitter electrode exhibits a first voltage gradient extending from the first end of the transmitter electrode toward a second end of the transmitter electrode;
a receiver module including receiver circuitry, the receiver module configured to receive a first resulting signal with a first receiver electrode and a second resulting signal with a second receiver electrode, wherein the first receiver electrode and the second receiver electrode are proximate to corresponding discrete regions of the transmitter electrode; and
a determination module configured to compute a first measurement of a change in capacitive coupling between the transmitter electrode and the first receiver electrode based on the first resulting signal, compute a second measurement of a change in capacitive coupling between the transmitter electrode and the second receiver electrode based on the second resulting signal, and determine a button response for an input object based on at least one of the first measurement and the second measurement.
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Accused Products
Abstract
A processing system for an input device includes a transmitter module, a receiver module, and a determination module. The transmitter module including transmitter circuitry, and is configured to drive a first end of a transmitter electrode such that the transmitter electrode exhibits a first voltage gradient extending from the first end of the transmitter electrode toward a second end of the transmitter electrode, wherein the first voltage gradient comprises a set of substantially discrete voltage values. The receiver module includes receiver circuitry, the receiver module configured to receive a first resulting signal with a first receiver electrode while the transmitter module is driving the first end of the transmitter electrode. The determination module is configured to compute a first measurement of a change in capacitive coupling between the transmitter electrode and the receiver electrode based on the first resulting signal, and determine positional information for an input object based on the first measurement.
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Citations
20 Claims
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1. A processing system for an input device, the processing system comprising:
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a transmitter module including transmitter circuitry, the transmitter module configured to drive a first end of a transmitter electrode such that the transmitter electrode exhibits a first voltage gradient extending from the first end of the transmitter electrode toward a second end of the transmitter electrode; a receiver module including receiver circuitry, the receiver module configured to receive a first resulting signal with a first receiver electrode and a second resulting signal with a second receiver electrode, wherein the first receiver electrode and the second receiver electrode are proximate to corresponding discrete regions of the transmitter electrode; and a determination module configured to compute a first measurement of a change in capacitive coupling between the transmitter electrode and the first receiver electrode based on the first resulting signal, compute a second measurement of a change in capacitive coupling between the transmitter electrode and the second receiver electrode based on the second resulting signal, and determine a button response for an input object based on at least one of the first measurement and the second measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A processing system for an input device, the processing system comprising:
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a transmitter module including transmitter circuitry, the transmitter module configured to drive a first end of a transmitter electrode such that the transmitter electrode exhibits a first voltage gradient extending from the first end of the transmitter electrode toward a second end of the transmitter electrode, wherein the first voltage gradient comprises a set of substantially discrete voltage values; a receiver module including receiver circuitry, the receiver module configured to receive a first resulting signal with a first receiver electrode while the transmitter module is driving the first end of the transmitter electrode; a determination module including determination circuitry, the determination circuitry configured to compute a first measurement of a change in capacitive coupling between the transmitter electrode and the first receiver electrode based on the first resulting signal, and determine positional information for an input object based on the first measurement. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A capacitive sensor device comprising:
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a transmitter electrode; a plurality of receiver electrodes, wherein each receiver electrode of the plurality of receiver electrodes is adjacent to a corresponding discrete region of the transmitter electrode, and further wherein each discrete region comprises a substantially discrete voltage value; and a processing system communicatively coupled to the transmitter electrode and the plurality of receiver electrodes, the processing system configured to; drive a first end of the transmitter electrode such that the transmitter electrode exhibits a first voltage gradient extending from the first end of the transmitter electrode toward a second end of the transmitter electrode; receive a first resulting signal with a first receiver electrode of the plurality of receiver electrodes; compute a first measurement of a change in capacitive coupling between the transmitter electrode and the first receiver electrode based on the first resulting signal; and determine a button response for an input object based on the first measurement. - View Dependent Claims (17, 18, 19, 20)
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Specification