Method and device for dual-differential sensing
First Claim
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1. A dual-differential sensing method, comprising:
- obtaining a 2-D sensing information; and
determining whether there is at least one touch related sensing information in the 2-D sensing information, wherein the 2-D sensing information comprises a plurality of 1-D sensing information, and each 1-D sensing information comprises a plurality of dual difference values, wherein a dual difference value of each 1-D sensing information is determined by the operations;
receiving a first signal value from a first sensor;
receiving a second signal value from a second sensor; and
receiving a third signal value from a third sensor;
generating the dual difference value by subtracting twice of said second signal value from the sum of said first signal value and said third signal value or subtracting the sum of said first signal value and said third signal value from twice of said second signal value.
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Abstract
A method and device for dual-differential sensing is disclosed. The sensing information can be generated from signals provided by a sensing device with a plurality of sensors. Each value of the sensing information corresponds to signals of three sensors, respectively. The sensing device is flexible and configured on a display. The noise effect of the display on the signal of each sensor corresponds to the distance between the display and the sensor. Besides, the noise effect of the display on each value of the sensing information corresponds to the distances between the display and the three sensors, respectively.
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Citations
19 Claims
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1. A dual-differential sensing method, comprising:
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obtaining a 2-D sensing information; and determining whether there is at least one touch related sensing information in the 2-D sensing information, wherein the 2-D sensing information comprises a plurality of 1-D sensing information, and each 1-D sensing information comprises a plurality of dual difference values, wherein a dual difference value of each 1-D sensing information is determined by the operations; receiving a first signal value from a first sensor; receiving a second signal value from a second sensor; and receiving a third signal value from a third sensor; generating the dual difference value by subtracting twice of said second signal value from the sum of said first signal value and said third signal value or subtracting the sum of said first signal value and said third signal value from twice of said second signal value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A dual-differential sensing device, comprising:
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a first sensor sending a first signal value; a second sensor sending a second signal value; and a third sensor sending a third signal value; wherein a dual difference value is generated by subtracting twice of said second signal value from the sum of said first signal value and said third signal value or subtracting the sum of said first signal value and said third signal value from twice of said second signal value; and a controller for obtaining a 2-D sensing information, and determining whether there is at least one touch related sensing information in the 2-D sensing information; wherein the 2-D sensing information comprises a plurality of 1-D sensing information, and each 1-D sensing information comprises a plurality of dual difference values. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A dual-differential sensing controller, executing the operations:
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obtaining a 2-D sensing information; and determining whether there is at least one touch related sensing information in the 2-D sensing information, wherein the 2-D sensing information comprises a plurality of 1-D sensing information, and each 1-D sensing information comprises a plurality of dual difference values, wherein a dual difference value of each 1-D sensing information is determined by the operations; receiving a first signal value from a first sensor; receiving a second signal value from a second sensor; and receiving a third signal value from a third sensor; generating the dual difference value by subtracting twice of said second signal value from the sum of said first signal value and said third signal value or subtracting the sum of said first signal value and said third signal value from twice of said second signal value. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification