Geometrically based button discrimination in capacitive sensing applications
First Claim
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1. An electronic device, comprising:
- a first capacitive sensing pad configured to receive first user input;
wherein the first capacitive sensing pad is configured to generate a first signal based on the first user input,wherein the first signal indicates a size of an area of the first capacitive sensing pad in which the first user input is received;
a second capacitive sensing pad configured to receive second user input,wherein the second capacitive sensing pad is differently sized than the first capacitive sensing pad;
wherein the second capacitive sensing pad is configured to generate a second signal based on the second user input,wherein the second signal indicates a size of an area of the second capacitive sensing pad in which the second user input is received;
processing circuitry,wherein the processing circuitry comprises a first input coupled to the first capacitive sensing pad and the second capacitive pad;
wherein the first input is configured to additively receive the first signal from the first capacitive sensing pad and the second signal from the second capacitive sensing pad;
wherein, based on the first input, the processing circuitry is configured to determine the locations of the user inputs on the first and second capacitive pads.
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Abstract
Geometrically based system and method for receiving capacitive sensory input. User input may be received by a capacitive sensing pad. A signal may be generated by the capacitive sensing pad. The signal may indicate a size of an area in which the user input is received. The signal may be received by an input composed in processing circuitry and coupled to the capacitive sensing pad. A location of the user input may be determined by the processing circuitry based on the signal.
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Citations
20 Claims
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1. An electronic device, comprising:
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a first capacitive sensing pad configured to receive first user input; wherein the first capacitive sensing pad is configured to generate a first signal based on the first user input, wherein the first signal indicates a size of an area of the first capacitive sensing pad in which the first user input is received; a second capacitive sensing pad configured to receive second user input, wherein the second capacitive sensing pad is differently sized than the first capacitive sensing pad; wherein the second capacitive sensing pad is configured to generate a second signal based on the second user input, wherein the second signal indicates a size of an area of the second capacitive sensing pad in which the second user input is received; processing circuitry, wherein the processing circuitry comprises a first input coupled to the first capacitive sensing pad and the second capacitive pad; wherein the first input is configured to additively receive the first signal from the first capacitive sensing pad and the second signal from the second capacitive sensing pad; wherein, based on the first input, the processing circuitry is configured to determine the locations of the user inputs on the first and second capacitive pads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for receiving user input at an electronic device, the method comprising:
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receiving, by a first capacitive sensing pad, first user input; receiving, by a second capacitive sensing pad, second user input, wherein the second capacitive sensing pad is differently sized than the first capacitive sensing pad; generating by the first capacitive sensing pad, a first signal, wherein the first signal indicates a size of an area in which the first user input is received; generating by the second capacitive sensing pad, a second signal, wherein the second signal indicates a size of an area in which the second user input is received; receiving, by a first input coupled to the first capacitive sensing pad and second capacitive sensing pad, the first signal and the second signal, additively;
wherein the first input is comprised in processing circuitry;determining, by the processing circuitry, the locations of the user inputs on the first and second capacitive pads. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An electronic device, comprising:
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a plurality of capacitive sensing pads each configured to receive user input, wherein each of the plurality of capacitive sensing pads is differently sized; wherein each capacitive sensing pad is configured to generate a signal based on received user input, wherein each signal indicates a size of a respective capacitive sensing pad in which a user input is received; processing circuitry, wherein the processing circuitry comprises a first input coupled to the plurality of capacitive sensing pads; wherein the first input is configured to additively receive each signal from the plurality of capacitive sensing pads; wherein the processing circuitry is configured to determine, based on the first input, a location of the received user input on each of the plurality of capacitive sensing pads. - View Dependent Claims (18, 19, 20)
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Specification