POSITIONING MODULE, OPTICAL TOUCH SYSTEM AND METHOD OF CALCULATING A COORDINATE OF A TOUCH MEDIUM
First Claim
1. A positioning module for calculating coordinates of a touch medium, the positioning module comprising:
- at least one image detecting unit, the image detecting unit comprising a lateral side and an upper side;
a first light source disposed on the lateral side for emitting a first beam;
a second light source disposed on the upper side for emitting a second beam; and
a processor electrically connected to the image detecting unit, the processor determining a touch status of the touch medium according to a first image generated by the first beam, and further determining a touch position of the touch medium according to a second image generated by the second beam.
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Abstract
A positioning module of calculating a coordinate of a touch medium is disclosed in the present invention. The positioning module includes at least one image detecting unit, a first light source, a second light source and a processor. The image detecting unit includes a lateral side and an upper side. The image detecting unit captures an image reflected from a reflection component. The first light source is disposed on the lateral side and outputs a first beam. The second light source is disposed on the upper side and outputs a second beam. The processor is electrically connected to the image detecting unit. The processor determines a touch status of the touch medium according to a first image generated by the first beam, and further determines a touch coordinate of the touch medium according to a second image generated by the second beam.
37 Citations
28 Claims
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1. A positioning module for calculating coordinates of a touch medium, the positioning module comprising:
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at least one image detecting unit, the image detecting unit comprising a lateral side and an upper side; a first light source disposed on the lateral side for emitting a first beam; a second light source disposed on the upper side for emitting a second beam; and a processor electrically connected to the image detecting unit, the processor determining a touch status of the touch medium according to a first image generated by the first beam, and further determining a touch position of the touch medium according to a second image generated by the second beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical touch system for calculating coordinates of a touch medium, the optical touch system comprising:
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a panel; and a positioning module disposed on the panel, the positioning module comprising; at least one image detecting unit, the image detecting unit comprising a lateral side and an upper side; a first light source disposed on the lateral side for emitting a first beam; a second light source disposed on the upper side for emitting a second beam; and a processor electrically connected to the image detecting unit, the processor determining a touch status of the touch medium according to a first image generated by the first beam, and further determining a touch position of the touch medium according to a second image generated by the second beam. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of calculating coordinates of a touch medium, the method comprising:
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emitting a first beam; emitting a second beam; receiving a first image generated by the first beam; determining a touch status of the touch medium according to the first image; receiving at least one second image generated by the second beam; and determining a touch position of the touch medium according to the second image. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification