Touch sensitive device and method using pre-touch information
First Claim
1. A touch sensing method, comprising:
- generating pre-touch signals responsive to a presence of a touch implement near a touch surface;
generating touch signals responsive to a touch on the touch surface from the touch implement; and
determining a location of the touch on the touch surface based on the touch signals and the pre-touch signals.
1 Assignment
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Accused Products
Abstract
A touch device uses pre-touch sensing to enhance touch location determination and/or to activate various processes. Pre-touch signals are generated by one or more pre-touch sensors responsive to a touch implement hovering above the touch surface. The pre-touch signals indicate a pre-touch location of the touch implement. One or more touch sensors generate touch signals responsive to a touch by the touch implement on the touch surface. The touch signals indicate a touch location of the touch implement. A controller determines a touch location based on the pre-touch signals and the touch signals. Activation and/or deactivation of various processes may be triggered based on information acquired from the pre-touch and/or touch sensors.
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Citations
26 Claims
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1. A touch sensing method, comprising:
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generating pre-touch signals responsive to a presence of a touch implement near a touch surface;
generating touch signals responsive to a touch on the touch surface from the touch implement; and
determining a location of the touch on the touch surface based on the touch signals and the pre-touch signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch sensitive device, comprising:
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a touch surface;
one or more pre-touch sensors configured to generate pre-touch signals responsive to a touch implement near the touch surface, the pre-touch signals indicative of a pre-touch location of the touch implement;
one or more touch sensors configured generate touch signals responsive to a touch by the touch implement on the touch surface, the touch signals indicative of a touch location of the touch implement; and
a controller configured to determine the touch location based on the pre-touch signals and the touch signals. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26)
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24. A touch sensitive device, comprising:
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means for generating pre-touch signals responsive to a presence of a touch implement near a touch surface;
means for generating touch signals responsive to a touch by the touch implement on the touch surface; and
means for determining a location of a touch on the touch surface based on the touch signals and the pre-touch signals.
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Specification