Optical input type touch system and feedback control method thereof
First Claim
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1. An optical inputting type touch system, comprising:
- a touch panel integrated with a plurality of photosensitive elements within pixel elements, and capable of displaying at least touch position by at least an optical inputting, wherein the touch panel provides a signal data generated by the photosensitive elements when the touch panel is touched;
a readout circuit configured to receive the signal data and comprising;
a transformation unit generating a signal value based on the signal data and a transformation parameter; and
a processing unit, when the signal value is less than the preset value, returning a command to the transformation unit to shift a following signal value in accordance with the difference between the signal value and the preset value until the transformation unit receives a next command.
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Abstract
A touch system including a touch panel and a readout circuit is disclosed. The touch panel is integrated with a plurality of photosensitive elements within pixel elements, and capable of displaying at least touch position by at least an optical inputting. The touch panel provides a signal data when the touch panel is touched. The readout circuit is configured to receive the signal data and includes a transformation unit and a processing unit. The transformation unit generates a signal value based on the signal data and a transformation parameter. The processing unit executes a specific action when the signal value is less than a preset value.
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Citations
16 Claims
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1. An optical inputting type touch system, comprising:
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a touch panel integrated with a plurality of photosensitive elements within pixel elements, and capable of displaying at least touch position by at least an optical inputting, wherein the touch panel provides a signal data generated by the photosensitive elements when the touch panel is touched; a readout circuit configured to receive the signal data and comprising; a transformation unit generating a signal value based on the signal data and a transformation parameter; and a processing unit, when the signal value is less than the preset value, returning a command to the transformation unit to shift a following signal value in accordance with the difference between the signal value and the preset value until the transformation unit receives a next command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A feedback control method for an optical inputting type touch panel comprising a plurality of photosensitive elements to sense an optical input by an user, comprising:
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providing a signal value generated by the photosensitive elements to represent a light level of the optical inputting type touch panel; comparing the signal value with a preset value; and when the signal value is less than the preset value, returning a command to shift a following signal value in accordance with a difference between the signal value and the preset value until receiving a next command. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification