Force sensing resistor (FSR) with capacitive sensing
First Claim
1. An input device, comprising:
- a sensor apparatus coupled to a sensing region of the input device; and
processing circuitry configured to operate the sensor apparatus in at least a first mode or a second mode, wherein the processing circuitry is further configured to;
detect a capacitance of the sensor apparatus when operating in the first mode;
detect a resistance of the sensor apparatus when operating in the second mode;
switch from the first mode to the second mode when the detected capacitance exceeds a threshold capacitance;
switch from the second mode to the first mode when the detected resistance exceeds a threshold resistance; and
process user inputs in the sensing region based at least in part on the detected capacitance or the detected resistance of the sensor apparatus.
2 Assignments
0 Petitions
Accused Products
Abstract
An input device includes a sensor apparatus coupled to a sensing region. The sensor apparatus is operable in at least a first mode or a second mode. When operating in the first mode, the input device is configured to detect a capacitance of the sensor apparatus. When operating in a second mode, the input device is configured to detect a resistance of the sensor apparatus. The input device is further configured to process user inputs in the sensing region based at least in part on the detected capacitance or resistance of the sensor apparatus. In some implementations, the input device may be configured to switch between the first mode and the second mode based at least in part on the detected capacitance or resistance of the sensor apparatus.
1 Citation
16 Claims
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1. An input device, comprising:
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a sensor apparatus coupled to a sensing region of the input device; and processing circuitry configured to operate the sensor apparatus in at least a first mode or a second mode, wherein the processing circuitry is further configured to; detect a capacitance of the sensor apparatus when operating in the first mode; detect a resistance of the sensor apparatus when operating in the second mode; switch from the first mode to the second mode when the detected capacitance exceeds a threshold capacitance; switch from the second mode to the first mode when the detected resistance exceeds a threshold resistance; and process user inputs in the sensing region based at least in part on the detected capacitance or the detected resistance of the sensor apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating an input device, comprising:
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detecting a capacitance of a sensor apparatus when operating the sensor apparatus in a first mode; detecting a resistance of the sensor apparatus when operating the sensor apparatus in a second mode; switching from the first mode to the second mode when the detected capacitance exceeds a threshold capacitance; switching from the second mode to the first mode when the detected resistance exceeds a threshold resistance; and processing user inputs in a sensing region of the input device based at least in part on the detected capacitance or the detected resistance of the sensor apparatus, wherein the sensor apparatus is coupled to the sensing region. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer-readable medium storing instructions that, when executed by processing circuitry of an input device, cause the input device to perform operations comprising:
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detecting a capacitance of a sensor apparatus when operating the sensor apparatus in a first mode, wherein the sensor apparatus is coupled to a sensing region of the input device; detecting a resistance of the sensor apparatus when operating the sensor apparatus in a second mode; switching from the first mode to the second mode when the detected capacitance exceeds a threshold capacitance; switching from the second mode to the first mode when the detected resistance exceeds a threshold resistance; and processing user inputs in a sensing region of the input device based at least in part on the detected capacitance or the detected resistance of the sensor apparatus, wherein the sensor apparatus is coupled to the sensing region.
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Specification