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DC CAFCFirst Claim
1. An electronic input device comprising:
- an input object wherein said input object includes a source of said electromagnetic radiation;
an input area;
a sensor array positioned outside said input area operative to sense and provide an output indication of position and at least two of orientation, shape and size of an electromagnetic radiation pattern on said input area produced by said input object; and
input circuitry receiving said output indication and providing an electronic input representing at least one of two-dimensional position, three-dimensional position and orientation of said input object; and
wherein said source of said electromagnetic radiation produces a conical beam which intersects said input area in an elliptical pattern having elliptical eccentricity which is a function of the orientation of said input object in a plane perpendicular to said input area.
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Accused Products
Abstract
An electronic device comprises a display for displaying data stored on said electronic device; input means; sensing means for sensing the three-dimensional position of the input means relative to said device; and control means for controlling the data displayed on said display in dependence on the three-dimensional position of the input means relative to said device. The input means includes a source of electromagnetic radiation for directing an infrared conical beam onto the display. The sensing means can sense the elliptical eccentricity of the electromagnetic radiation incident on the display to determine the angle at which it strikes the display, and can sense the area of the electromagnetic radiation incident on the display to determine the distance of the input means from the display.
33 Citations
22 Claims
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1. An electronic input device comprising:
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an input object wherein said input object includes a source of said electromagnetic radiation; an input area; a sensor array positioned outside said input area operative to sense and provide an output indication of position and at least two of orientation, shape and size of an electromagnetic radiation pattern on said input area produced by said input object; and input circuitry receiving said output indication and providing an electronic input representing at least one of two-dimensional position, three-dimensional position and orientation of said input object; and wherein said source of said electromagnetic radiation produces a conical beam which intersects said input area in an elliptical pattern having elliptical eccentricity which is a function of the orientation of said input object in a plane perpendicular to said input area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An electronic input device comprising:
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an input object; an input area; a sensor array positioned outside said input area operative to sense and provide an output indication of position and at least two of orientation, shape and size of an electromagnetic radiation pattern on said input area produced by said input object; input circuitry receiving said output indication and providing an electronic input representing at least one of two-dimensional position, three-dimensional position and orientation of said input object, said electronic input representing orientation includes an electronic input representing angular orientation of said input object relative to said input area; and said input object includes a source of said electromagnetic radiation, and wherein said sensing array senses an electromagnetic radiation pattern which correlates with but is not itself representational of an elliptical pattern produced by a conical beam which intersects said input area in a pattern forming an ellipse having properties which are a function of at least one of position, distance and orientation of said input.
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21. An electronic input device comprising:
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a physical input area; an input stylus projecting an electromagnetic radiation pattern on said input area; a sensor array at least partially circumscribing and immediately proximate said input area, said sensor array operative to sense said electromagnetic radiation pattern on said input area and to provide an output indication of position and at least two of orientation, shape and size of said electromagnetic radiation pattern on said input area; wherein said electromagnetic radiation pattern includes an elliptical pattern having elliptical eccentricity that is a function of the orientation of said input stylus relative to said input area; and input circuitry receiving said output indication and providing an electronic input representing at least one of two-dimensional position, three-dimensional position and orientation of said input stylus.
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22. An electronic input device comprising:
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an input object; an input area; a sensor array positioned outside said input area operative to sense and provide an output indication of position and at least two of orientation, shape and size of an electromagnetic radiation pattern on said input area produced by said input object; wherein said input object produces a beam of electromagnetic radiation that intersects said input area in an elliptical pattern having elliptical eccentricity which is a function of the orientation of said input object in a plane perpendicular to said input area; and input circuitry receiving said output indication and providing an electronic input representing at least one of two-dimensional position, three-dimensional position and orientation of said input object.
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Specification