Force Sensing Capacitive Hybrid Touch Sensor
First Claim
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1. A method, comprising:
- receiving a first plurality of capacitance measurements affected by a first contact at a touch-sensing surface; and
determining a magnitude of a first force applied to the touch-sensing surface at a location of the first contact based on the location of the first contact and a first capacitance measurement of the first plurality of capacitance measurements.
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Abstract
A method for detecting a magnitude of force applied to a capacitive sensor array may comprise receiving a plurality of capacitance measurements affected by a contact at a touch-sensing surface, and determining a magnitude of a force applied to the touch-sensing surface at a location of the contact based on the location of the contact and a capacitance measurement of the first plurality of capacitance measurements.
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Citations
20 Claims
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1. A method, comprising:
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receiving a first plurality of capacitance measurements affected by a first contact at a touch-sensing surface; and determining a magnitude of a first force applied to the touch-sensing surface at a location of the first contact based on the location of the first contact and a first capacitance measurement of the first plurality of capacitance measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus, comprising:
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a capacitance sensor configured to measure a plurality of capacitance measurements from a capacitive sensor array, wherein the plurality of capacitance values are affected by one or more contacts at a touch-sensing surface; and processing logic coupled with the capacitance sensor, wherein the processing unit is configured to determine a location of each of the one or more contacts based on the plurality of capacitance measurements, and to determine a magnitude of force applied at the location based on at least one of the plurality of capacitance measurements. - View Dependent Claims (11, 12, 13, 14)
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15. An apparatus, comprising:
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a capacitive sensor array comprising a plurality of sensor elements; a capacitance sensor coupled with the capacitive sensor array, wherein the capacitance sensor is configured to measure a plurality of capacitance measurements from the plurality of sensor elements; and a processing logic coupled with the capacitance sensor, wherein the processing logic is configured to determine a location of a contact at the capacitive sensor array based on the plurality of capacitance measurements, and to determine a magnitude of force applied to the capacitive sensor array at the location of the contact based on at least one of the plurality of capacitance measurements. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification