Remote pointing system, device, and methods for identifying absolute position and relative movement on an encoded surface by remote optical method
First Claim
1. A pointing system comprising:
- an encoded surface; and
a pointing device for use with the encoded surface wherein said device is remote from said encoded surface during pointing, said pointing device comprising;
a collimated light source for projecting a collimated light beam having a wavelength outside the visible light spectrum onto said encoded surface, said encoded surface scattering the collimated light beam striking said encoded surface;
a detector associated with the collimated light source for detecting at least a portion of said scattered light; and
a controller associated with the detector and configured to respond to the detected portion of the scattered light to determine a position where the collimated light beam strikes the encoded surface, said position corresponding to where the device is pointing.
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Accused Products
Abstract
A pointing system comprises an encoded surface and a pointing device for use with an encoded surface remote from the pointing device. The pointing device comprises a collimated light source for projecting a collimated light beam having a wavelength outside the visible light spectrum onto the encoded surface. The encoded surface scatters the collimated light beam striking the encoded surface. A detector associated with the collimated light source detects at least a portion of the scattered light. A controller is associated with the detector and configured to respond to the detected portion of the scattered light to determine a position where the collimated light beam strikes the encoded surface. The position corresponds to where the device is pointing.
49 Citations
37 Claims
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1. A pointing system comprising:
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an encoded surface; and a pointing device for use with the encoded surface wherein said device is remote from said encoded surface during pointing, said pointing device comprising; a collimated light source for projecting a collimated light beam having a wavelength outside the visible light spectrum onto said encoded surface, said encoded surface scattering the collimated light beam striking said encoded surface; a detector associated with the collimated light source for detecting at least a portion of said scattered light; and a controller associated with the detector and configured to respond to the detected portion of the scattered light to determine a position where the collimated light beam strikes the encoded surface, said position corresponding to where the device is pointing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A pointing device for use with an encoded surface, wherein said device is remote from said encoded surface during pointing, said pointing device comprising:
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a collimated light source for projecting a collimated light beam having a wavelength outside the visible light spectrum onto said encoded surface, said encoded surface scattering the collimated light beam striking said encoded surface; a detector associated with the collimated light source for detecting at least a portion of said scattered light; a housing, said collimated light source and said detector mounted on said housing; and a controller associated with the detector and configured to respond to the detected portion of the scattered light to determine a position where the collimated light beam strikes the encoded surface, said location corresponding to where the device is pointing. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification