Patent ID: 8723794

Claim:
A system for providing an input value to an electronic device, the system comprising: a sender portion adapted to be manipulated by a user, the sender portion including a light projecting system adapted to form a projection of an encoded pattern of light with respect to the light projecting system, the projection including a plurality of intensity transitions at a target area; and a receiver portion including at least one sensor unit, the at least one sensor unit adapted to measure at least one intensity value of the intensity transitions of the projection at a location of the at least one sensor unit, wherein the receiver portion includes logic adapted to determine a position or orientation input value associated with the sender portion from the at least one intensity value of the intensity transitions of the projection at the location of the at least one sensor unit, wherein the receiver portion includes logic that determines a location of the sender portion based at least in part on matching the at least one intensity value to a known or determinable spatial distribution of light intensity.