Likelihood detection of pressing finger in two-finger touch
First Claim
1. A processing system for a force sensing device, the processing system comprising:
- sensor circuitry configured to receive resulting signals from a plurality of force sensors; and
processing circuitry configured to;
determine a first location of a first input object and a second location of a second input object on a surface of the force sensing device;
determine a plurality of measured deflections associated with the plurality of force sensors based on the resulting signals;
obtain a first plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the first location;
obtain a second plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the second location;
calculate a first deviation between the first plurality of expected deflections and the plurality of measured deflections;
calculate a second deviation between the second plurality of expected deflections and the plurality of measured deflections; and
determine, based on the first deviation being less than the second deviation, that the first input object is applying more force to the surface than the second input object.
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Accused Products
Abstract
A processing system for a force sensing device, including: sensor circuitry that receives resulting signals from force sensors; and processing circuitry that: determines a first location of a first input object and a second location of a second input object on a surface; determines force values for the force sensors based on the resulting signals; obtains a first plurality of expected force values for the force sensors based on the first location and a second plurality of expected force values for the force sensors based on the second location; executes a first comparison of the first plurality of expected force values to the force values; executes a second comparison of the second plurality of expected force values to the force values; and determines, based on the first comparison and the second comparison, that the first input object is applying an input force to the surface.
3 Citations
19 Claims
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1. A processing system for a force sensing device, the processing system comprising:
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sensor circuitry configured to receive resulting signals from a plurality of force sensors; and processing circuitry configured to; determine a first location of a first input object and a second location of a second input object on a surface of the force sensing device; determine a plurality of measured deflections associated with the plurality of force sensors based on the resulting signals; obtain a first plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the first location; obtain a second plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the second location; calculate a first deviation between the first plurality of expected deflections and the plurality of measured deflections; calculate a second deviation between the second plurality of expected deflections and the plurality of measured deflections; and determine, based on the first deviation being less than the second deviation, that the first input object is applying more force to the surface than the second input object. - View Dependent Claims (2, 3)
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4. A method for operating a force sensor device comprising a surface, comprising:
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receiving resulting signals from a plurality of force sensors; determining a first location of a first input object and a second location of a second input object on the surface; determining a plurality of measured deflections associated with the plurality force sensors based on the resulting signals; obtaining a first plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the first location; obtaining a second plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the second location; calculating a first deviation between the first plurality of expected deflections and the plurality of measured deflections; calculating a second deviation between the second plurality of expected deflections and the plurality of measured deflections; and determining, based on the first deviation being less than the second deviation, that the first input object is applying more force to the surface than the second input object. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An input device, comprising:
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a surface; a plurality of force sensors; and a processing system that; receives resulting signals from a plurality of force sensors; determines a first location of a first input object and a second location of a second input object on the surface; determines a plurality of measured deflections associated with the plurality force sensors based on the resulting signals; obtains a first plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the first location; obtains a second plurality of expected deflections associated with the plurality of force sensors based on an input force being applied at the second location; calculates a first deviation between the first plurality of expected deflections and the plurality of measured deflections; calculates a second deviation between the second plurality of expected deflections and the plurality of measured deflections; and determines, based on the first deviation being less than the second deviation, that the first input object is applying more force to the surface than the second input object. - View Dependent Claims (17, 18, 19)
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Specification