SPATIAL INPUT DEVICE
First Claim
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1. A spatial input device comprising:
- a light beam scanner that emits light beams toward a spatially projected image while scanning the light beams;
a photodetector that detects the light beams that have been reflected by an input object within a detection range; and
a controller that counts a scan line number indicative of a number of the light beams that have been detected by the photodetector, and detects a position of the input object according to the counted scan line number using a table that specifies correlation between positions of the input object and scan line numbers.
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Abstract
A spatial input device includes a light beam scanner that emits light beams toward a spatially projected image while scanning the light beams, a photodetector that detects the light beams that have been reflected by an input object within a detection range, and a controller that counts a scan line number indicative of a number of the light beams that have been detected by the photodetector, and detects a position of the input object according to the counted scan line number using a table that specifies correlation between positions of the input object and scan line numbers.
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Citations
20 Claims
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1. A spatial input device comprising:
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a light beam scanner that emits light beams toward a spatially projected image while scanning the light beams; a photodetector that detects the light beams that have been reflected by an input object within a detection range; and a controller that counts a scan line number indicative of a number of the light beams that have been detected by the photodetector, and detects a position of the input object according to the counted scan line number using a table that specifies correlation between positions of the input object and scan line numbers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification