TOUCH SENSITIVE PANEL DETECTING HOVERING FINGER
First Claim
1. A user input device comprising:
- a communications interface;
a touch sensitive pad having a plurality of touch sensitive elements; and
processing circuitry coupled to the communications interface and to the touch sensitive pad, the processing circuitry operable to;
scan the plurality of touch sensitive elements to measure a plurality of touch sensitive element values;
compare the plurality of touch sensitive element values to a hovering finger threshold pattern and, upon a favorable comparison;
determine a hovering finger condition; and
detect a position of the hovering finger in three-dimensions with respect to the touch sensitive pad; and
compare the plurality of touch sensitive element values to a touching finger threshold pattern and, upon a favorable comparison;
determine a touching finger condition; and
detect a position of the touching finger upon the touch sensitive pad.
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Accused Products
Abstract
A touch sensitive pad with a plurality of touch sensitive elements and processing circuitry coupled to a communications interface and to the touch sensitive pad for scanning the plurality of touch sensitive elements to measure a plurality of touch sensitive element values. The plurality of touch sensitive element values is compared to a hovering finger threshold pattern. Upon a favorable comparison, a hovering finger condition is determined, and a position of the hovering finger in three-dimensions is detected with respect to the touch sensitive pad. The plurality of touch sensitive element values is compared to a touching finger threshold pattern. Upon a favorable comparison, a touching finger condition is determined, and a position of the touching finger is detected upon the touch sensitive pad.
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Citations
22 Claims
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1. A user input device comprising:
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a communications interface; a touch sensitive pad having a plurality of touch sensitive elements; and processing circuitry coupled to the communications interface and to the touch sensitive pad, the processing circuitry operable to; scan the plurality of touch sensitive elements to measure a plurality of touch sensitive element values; compare the plurality of touch sensitive element values to a hovering finger threshold pattern and, upon a favorable comparison; determine a hovering finger condition; and detect a position of the hovering finger in three-dimensions with respect to the touch sensitive pad; and compare the plurality of touch sensitive element values to a touching finger threshold pattern and, upon a favorable comparison; determine a touching finger condition; and detect a position of the touching finger upon the touch sensitive pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for operating a user input device that has a communications interface, at least one touch sensitive pad having a plurality of touch sensitive elements, and processing circuitry coupled to the communications interface and to the at least one touch sensitive pad, the method comprising:
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scanning the plurality of touch sensitive elements to measure a plurality of touch sensitive element values; comparing the plurality of touch sensitive element values to a hovering finger threshold pattern and, upon a favorable comparison; determining a hovering finger condition; and detecting a position of the hovering finger in three-dimensions with respect to the touch sensitive pad; and comparing the plurality of touch sensitive element values to a touching finger threshold pattern and, upon a favorable comparison; determining a touching finger condition; and detecting a position of the touching finger upon the touch sensitive pad. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification