Patent ID: 8305346

Claim:
A method of remotely controlling position of a cursor or other object displayed on a display employing an imager, comprising: imaging an area in front of the display, the area including a user movable object; detecting the object location in the image; detecting the distance of the object from the imager; imaging the area to obtain a new image; detecting a new object location in the new image; and comparing the new location of the object to the prior object location to control movement of a cursor or other object displayed on the display with an amount of movement based on the object distance; 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 object in the image relative to the start location, and the Mapping function is a linear or non-linear mapping of object displacement to cursor displacement.