Method and device for dual-differential sensing
AssigneeEgalax_Empia Technology Inc.
InventorsCHIN-FU CHANG, CHENG-HAN LEE, CHI-HAO TANG, SHUN-LUNG HO
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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.
Claims15
A sensing method for a touch sensitive panel, wherein said touch sensitive panel including a first sensor, a second sensor, and a third sensor configured to provide, respectively, a first value, a second value, and a third value which are detected in one scan of said first sensor, said second sensor, and said third sensor, the sensing method comprising:
- receiving said first value, said second value, and said third value in one scan of said first sensor, said second sensor, and said third sensor;
- calculating a difference value by subtracting twice of said second value from a sum of said first value and said third value or subtracting the sum of said first value and said third value from twice of said second value;
- and
- obtaining a sensing result based on a differential sensing information, and determining each location on said touch sensitive panel touched or approached by at least one external object according to said sensing result, wherein said differential sensing information comprises said difference value.
A sensing apparatus for a touch sensitive panel, wherein said touch sensitive panel including a first sensor, a second sensor, and a third sensor, the sensing apparatus comprising:
- a sensing module, configured to scan said first sensor, said second sensor, and said third sensor for generating a first value, a second value, and a third value, respectively;
- a calculating module, configured to calculate a difference value by subtracting twice of said second value from a sum of said first value and said third value or subtracting the sum of said first value and said third value from twice of said second value;
- and
- a controller, configured to obtain a sensing result based on a differential sensing information, and to determine each location on said touch sensitive panel touched or approached by at least one external object according to said sensing result, wherein said differential sensing information comprises said difference value.
Dependencies are inferred from the claim text.