Techniques for Creating A Virtual Touchscreen
First Claim
Patent Images
1. A method, comprising:
- capturing, with a first infrared camera, a first reflection from an object that is at a known position adjacent a surface associated with a device;
capturing, with a second infrared camera, a second reflection from the object at the known position; and
correlating the first and second reflections and the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface.
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Abstract
A technique for creating a virtual touchscreen includes capturing, with a first infrared camera, a first reflection from an object that is at a known position adjacent a surface associated with a device. A second reflection from the object (at the known position) is captured with a second infrared camera. The first and second reflections are correlated with the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface.
99 Citations
20 Claims
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1. A method, comprising:
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capturing, with a first infrared camera, a first reflection from an object that is at a known position adjacent a surface associated with a device; capturing, with a second infrared camera, a second reflection from the object at the known position; and correlating the first and second reflections and the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus, comprising:
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infrared cameras positioned to view a surface associated with a device; and a processor coupled to the infrared cameras, wherein the processor is configured to; capture, with a first infrared camera included in the infrared cameras, a first reflection from an object that is at a known position adjacent the surface; capture, with a second infrared camera included in the infrared cameras, a second reflection from the object at the known position; and correlate the first and second reflections and the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method, comprising:
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decoding a key of a keyboard of a device to provide a known position for a surface associated with the device; capturing, with infrared cameras, respective reflections from an object that is at the known position; and correlating the respective reflections and the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface. - View Dependent Claims (20)
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Specification