SYSTEM AND METHOD FOR MEASURING INDIVIDUAL FORCE IN MULTI-OBJECT SENSING
First Claim
1. In an input device of the type comprising a sensor configured to sense input objects in a sensing region of the input device, the sensing region overlapping an input surface, and a plurality of force sensors configured to measure a force applied to the input surface;
- a processing system communicatively coupled to the sensor and the plurality of force sensors and configured to;
determine a position for each of the input objects contacting the input surface;
determine a force measured by each of the plurality of force sensors; and
determine a force applied by each of the input objects contacting the input surface based on the determined position for each input object and the determined force measured by each of the plurality of force sensors.
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Accused Products
Abstract
An input device is provided that facilitates improved user interface functionality by determining force information for each of multiple objects in a sensing region. The input device includes a processing system, a sensor configured to sense objects in a sensing region proximate a surface, and a plurality of force sensors. The plurality of force sensors are coupled to the surface to provide a plurality of measures of force applied to the surface. The processing system is configured to determine positional information for each the multiple objects sensed by the sensor in the sensing region. Furthermore, the processing system is configured to determine force information for each of the multiple objects from the positional information and the plurality of measures of force applied to the surface. Thus, device and method provides the ability to determine both positional information and force information for each of multiple objects in a sensing region.
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Citations
21 Claims
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1. In an input device of the type comprising a sensor configured to sense input objects in a sensing region of the input device, the sensing region overlapping an input surface, and a plurality of force sensors configured to measure a force applied to the input surface;
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a processing system communicatively coupled to the sensor and the plurality of force sensors and configured to; determine a position for each of the input objects contacting the input surface; determine a force measured by each of the plurality of force sensors; and determine a force applied by each of the input objects contacting the input surface based on the determined position for each input object and the determined force measured by each of the plurality of force sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A processing system configured to:
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simultaneously sense multiple input objects in a sensing region of a capacitive sensor; determine a two-dimensional coordinate position for each of the multiple input objects simultaneously sensed by the sensor; determine a plurality of force measurements, each force measurement corresponding to a force applied to a part of an input surface of the capacitive sensor; determine a force applied by each of the multiple objects from; the two-dimensional coordinate position of each input objects in the sensing region; and at least a sub set of the plurality of force measurements; and provide electronic indicia to an electronic system corresponding to the determined force applied by each of the multiple input objects. - View Dependent Claims (14, 15, 16, 17, 19, 20, 21)
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Specification