Patent ID: 8194038

Claim:
A method of remotely controlling position of a cursor or other object displayed on a display, comprising: imaging an area in front of the display, the area including a user movable remote control having an LED; detecting the LED location in the image; detecting the size of the LED beam; imaging the area to obtain a new image; detecting a new LED location in the new image; comparing the new location of the LED to the prior LED location to control movement of a cursor or other object displayed on the display with an amount of movement based on the LED beam size; and wherein the amount of movement is given by the relation Movement Speed=Distance*Scale Factor*Mapping(Displacement), where Scale Factor is a setting for overall cursor speed, Displacement is the horizontal and vertical displacement of the LED in the image relative to the start location, and the Mapping function is a linear or non-linear mapping of LED displacement to cursor displacement.