ELECTRONIC DEVICE AND METHOD OF DETECTING TOUCHES ON A TOUCH-SENSITIVE DISPLAY
First Claim
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1. A method comprising:
- applying a first plurality of pulses to scanning electrodes during a first scan to detect touches on a touch-sensitive display;
receiving an indication to scan in a reduced power condition;
when in the reduced power condition, applying a second plurality of pulses to scanning electrodes during a second scan to detect touches on the touch-sensitive display;
wherein the second plurality of pulses comprises fewer pulses than the first plurality of pulses.
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Abstract
A method includes applying a first plurality of pulses to scanning electrodes during a first scan to detect touches on a touch-sensitive display, receiving an indication to scan in a reduced power condition, and when in the reduced power condition, applying a second plurality of pulses to scanning electrodes during a second scan to detect touches on the touch-sensitive display, wherein the second plurality of pulses comprises fewer pulses than the first plurality of pulses.
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Citations
17 Claims
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1. A method comprising:
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applying a first plurality of pulses to scanning electrodes during a first scan to detect touches on a touch-sensitive display; receiving an indication to scan in a reduced power condition; when in the reduced power condition, applying a second plurality of pulses to scanning electrodes during a second scan to detect touches on the touch-sensitive display; wherein the second plurality of pulses comprises fewer pulses than the first plurality of pulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electronic device comprising:
a touch-sensitive display comprising; scanning electrodes; sense electrodes; and at least one controller coupled to the scanning electrodes and the sense electrodes and configured to; apply a first plurality of pulses to the scanning electrodes during a first scan to detect touches on the touch-sensitive display; receive an indication to scan in a reduced power condition; when in the reduced power condition, apply a second plurality of pulses to scanning electrodes during a second scan to detect touches on the touch-sensitive display, wherein the second plurality of pulses comprises fewer pulses than the first plurality of pulses. - View Dependent Claims (10, 11, 12, 13)
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14. A method comprising:
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scanning a touch-sensitive display at a first scanning rate to detect touches on the touch-sensitive display; scanning the touch-sensitive display at a second scanning rate that is less than the first scanning rate to detect touches in a reduced power condition; in response to detecting a touch when scanning at the second scanning rate, scanning the touch-sensitive display at a third scanning rate; wherein the third scanning rate is between the first scanning rate and the second scanning rate. - View Dependent Claims (15, 16, 17)
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Specification