IDENTIFYING AND RESPONDING TO MULTIPLE TIME-OVERLAPPING TOUCHES ON A TOUCH PANEL
First Claim
1. A method comprising:
- receiving information from a touch panel indicating movement between two user touch positions sensed on the touch panel, andidentifying that at least two time-overlapping touches have occurred at different positions on the touch panel in response to at least a threshold speed of the movement.
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Accused Products
Abstract
An electronic device includes a touch panel interface that receives information from a touch panel indicating sensed movement between two user touch positions on the touch panel, and identifies that at least two time-overlapping touches have occurred at different positions on the touch panel in response to at least a threshold speed of the movement. The touch panel interface identifies that at least two time-overlapping touches have occurred on the touch panel in response to a speed of movement from one touch coordinate position to another exceeding the threshold speed. The touch panel interface also identifies that a single touch has occurred with subsequent sliding while pressed against the touch panel from one touch coordinate position to another in response to the movement having less than the threshold speed. Because the touch panel controller can distinguish between a single touch and at least two time-overlapping touches, it can enable a user to use various combinations of such touches to trigger different operational modes of the electronic device.
94 Citations
20 Claims
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1. A method comprising:
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receiving information from a touch panel indicating movement between two user touch positions sensed on the touch panel, and identifying that at least two time-overlapping touches have occurred at different positions on the touch panel in response to at least a threshold speed of the movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device comprising:
a touch panel interface that is configured to receive information from a touch panel indicating sensed movement between two user touch positions on the touch panel, and to identify that at least two time-overlapping touches have occurred at different positions on the touch panel in response to at least a threshold speed of the movement. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An electronic device comprising:
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a resistive touch panel that is configured to generate touch coordinate position signals having voltage amplitudes that vary in response to different touched locations on the touch panel; a touch coordinate circuit that is configured respond to the touch coordinate position signals from the touch panel by generating digital touch coordinate position values indicating coordinate positions where the touch panel is touched; a multiple touch detector circuit that is configured to identify that at least two time-overlapping touches have occurred on the touch panel in response to a speed of movement from one touch coordinate position value to another exceeding a threshold speed value, and to identify that a single touch has occurred with subsequent sliding while pressed against the touch panel from the one touch coordinate position value to the other touch coordinate position value in response to the movement having less than the threshold speed; and an application functionality controller that is configured to respond to identification of the at least two time-overlapping touches at different positions on the touch panel by triggering different operational modes of the electronic device.
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Specification