TOUCH DETECTION CIRCUIT, TOUCH DETECTION METHOD, AND ELECTRONIC APPARATUS
First Claim
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1. A touch detection circuit comprising:
- a map generation section configured to compare a touch signal corresponding to a proximity state of an external proximity object with each of a plurality of thresholds to generate a plurality of pieces of map data each showing touch regions;
a labeling section configured to selectively perform labeling on the touch regions in the plurality of pieces of map data, based on inclusive relationship of the touch regions between the plurality of pieces of map data; and
a detection section configured to perform touch detection based on processing results by the labeling section.
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Abstract
A touch detection circuit includes: a map generation section configured to compare a touch signal corresponding to a proximity state of an external proximity object with each of a plurality of thresholds to generate a plurality of pieces of map data each showing touch regions; a labeling section configured to selectively perform labeling on the touch regions in the plurality of pieces of map data, based on inclusive relationship of the touch regions between the plurality of pieces of map data; and a detection section configured to perform touch detection based on processing results by the labeling section.
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Citations
15 Claims
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1. A touch detection circuit comprising:
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a map generation section configured to compare a touch signal corresponding to a proximity state of an external proximity object with each of a plurality of thresholds to generate a plurality of pieces of map data each showing touch regions; a labeling section configured to selectively perform labeling on the touch regions in the plurality of pieces of map data, based on inclusive relationship of the touch regions between the plurality of pieces of map data; and a detection section configured to perform touch detection based on processing results by the labeling section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A touch detection method comprising:
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comparing a touch signal corresponding to a proximity state of an external proximity object with each of a plurality of thresholds to generate a plurality of pieces of map data each showing touch regions; selectively performing labeling on the touch regions in the plurality of pieces of map data based on inclusive relationship of the touch regions between the plurality of pieces of map data; and performing touch detection based on labeling results.
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15. An electronic apparatus provided with a touch detection device configured to detect an external proximity object, and a touch detection circuit, the touch detection circuit comprising:
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a map generation section configured to compare a touch signal corresponding to a proximity state of the external proximity object to the touch detection device with each of a plurality of thresholds to generate a plurality of pieces of map data each showing touch regions; a labeling section configured to selectively perform labeling on the touch regions in the plurality of pieces of map data, based on inclusive relationship of the touch regions between the plurality of pieces of map data; and a detection section configured to perform touch detection based on processing results by the labeling section.
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Specification