METHOD AND DEVICE FOR CAPACITIVE POSITION DETECTION
First Claim
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1. A method for capacitive position detection, comprising:
- obtaining a 2-D sensing information;
obtaining at least one 1-D sensing information, wherein each value of the at least one 1-D sensing information is generated based on the sum of a part of the 2-D sensing information respectively;
determining at least one detected range in the 2-D sensing information based on the at least one 1-D sensing information when a capacitive sensing device is being touched or approached; and
determining each touch related sensing information in the at least one detected range.
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Abstract
The method and device for capacitive position detection are disclosed. The touch related sensors within a sensing device with a plurality of sensors are detected first. Therefore at least a range of the mutual capacitance detection for detecting sensing information can be determined according to the touch related sensors. The sensing information within the range of the mutual capacitance detection can be used for generating a two-dimension sensing information.
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Citations
20 Claims
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1. A method for capacitive position detection, comprising:
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obtaining a 2-D sensing information; obtaining at least one 1-D sensing information, wherein each value of the at least one 1-D sensing information is generated based on the sum of a part of the 2-D sensing information respectively; determining at least one detected range in the 2-D sensing information based on the at least one 1-D sensing information when a capacitive sensing device is being touched or approached; and determining each touch related sensing information in the at least one detected range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for capacitive position detection, comprising:
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a capacitive sensing device including a plurality of sensors that include a plurality of first sensors and a plurality of second sensors, wherein these first and second sensors overlap at a plurality of overlapping points; and a controller for performing operations, comprising; obtaining a 2-D sensing information; obtaining at least one 1-D sensing information, wherein each value of the at least one 1-D sensing information is generated based on the sum of a part of the 2-D sensing information respectively; determining at least one detected range in the 2-D sensing information based on the at least one 1-D sensing information when a capacitive sensing device is being touched or approached; and determining each touch related sensing information in the at least one detected range. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification