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 pattern of light including a predefined spatially varying characteristic at the target area; and
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 pattern 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,wherein the predefined spatially varying characteristic of the pattern of light is an intensity pattern, and wherein the sensor unit is part of a plurality of sensor units, each sensor unit at a different location and adapted to measure the value of the spatially varying characteristic of the pattern of light at its respective location, wherein the value of the spatially varying characteristic is an intensity of light received from the sender portion, and wherein the receiver portion includes logic adapted to determine the positional input value associated with the target point from intensity of the pattern of light measured by the plurality of sensor unit locations.
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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 onto 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.
56 Citations
28 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 pattern of light including a predefined spatially varying characteristic at the target area; and 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 pattern 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, wherein the predefined spatially varying characteristic of the pattern of light is an intensity pattern, and wherein the sensor unit is part of a plurality of sensor units, each sensor unit at a different location and adapted to measure the value of the spatially varying characteristic of the pattern of light at its respective location, wherein the value of the spatially varying characteristic is an intensity of light received from the sender portion, and wherein the receiver portion includes logic adapted to determine the positional input value associated with the target point from intensity of the pattern of light measured by the plurality of sensor unit locations. - 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, 25, 26)
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27. 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 a spatially varying characteristic of a pattern of light projected towards 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, wherein the predefined spatially varying characteristic of the pattern of light is an intensity pattern, and wherein the sensor unit is part of a plurality of sensor units, each sensor unit at a different location and adapted to measure the value of the spatially varying characteristic of the pattern of light at its respective location, wherein the value of the spatially varying characteristic is an intensity of light received from the sender portion, and wherein the processing unit includes logic adapted to determine the positional input value associated with the target point from intensity of the pattern of light measured by the plurality of sensor unit locations. - View Dependent Claims (28)
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Specification