Remote input device
First Claim
1. A system for providing a positional input value to an electronic device, the system comprising:
- a sender portion adapted to be manipulated by a user to specify a target point within a target area, the sender portion including a light projecting system adapted to project a beam of light including a predefined spatially varying characteristic at the target area;
a receiver portion including at least one sensor unit, the sensor unit is adapted to measure at least one value of the spatially varying characteristic of the beam of light at the location of the sensor unit, wherein the receiver portion includes logic adapted to determine a positional input value associated with the target point from the value of the spatially varying characteristic at the location of the sensor unit.
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Accused Products
Abstract
An input device providing users with a pointing capability includes a sender portion and a receiver portion. The sender portion is adapted to be manipulated by a user to specify a target point within a target area. The sender portion projects a light beam including a pattern on to the target area. A receiver portion includes one or more sensor units located in or near the target area. At least some of the sensor units receive a portion of the light beam regardless of the location of the target point within the target area. A processing unit in the receiver portion analyzes the portions of the light beam received by one or more sensor units to determine an attribute of the target point. The attribute can be the location or relative motion of the target point. The receiver portion may be integrated with a display device.
97 Citations
30 Claims
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1. A system for providing a positional input value to an electronic device, the system comprising:
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a sender portion adapted to be manipulated by a user to specify a target point within a target area, the sender portion including a light projecting system adapted to project a beam of light including a predefined spatially varying characteristic at the target area;
a receiver portion including at least one sensor unit, the sensor unit is adapted to measure at least one value of the spatially varying characteristic of the beam of light at the location of the sensor unit, wherein the receiver portion includes logic adapted to determine a positional input value associated with the target point from the value of the spatially varying characteristic at the location of the sensor unit. - View Dependent Claims (2, 3, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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- 4. The system of claim 4, wherein the receiver portion includes logic adapted to determine a plurality of distance values corresponding with at least a portion of the intensity values measured by the plurality of sensor units, each distance value representing the distance between the location of its respective sensor unit and the target point.
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22. A system for determining a positional input value associated with a target point specified by a user, the system comprising:
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at least one sensor unit, wherein the sensor unit is adapted to measure at least one value of the spatially varying characteristic of a beam of light projected at the location of the sensor unit;
a processing unit connected with the at least one sensor unit and including logic adapted to determine a positional input value associated with a target point specified by a user from the value of the spatially varying characteristic from the at least one sensor unit. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification