Patent ID: 6816149
Filing Date: 2004-11-09
Classification: G06F

Abstract:
An input device comprising:an input mechanism, wherein the input mechanism is operative responsive to movements of a user of the device to send inputs to a computer system; and a body in operative connection with the input mechanism, wherein the body includes an exterior surface that is operative to come in contact with the user of the device, wherein the exterior surface includes a first layer and a second layer disposed on top of the first layer, wherein the second layer is substantially opaque at a generally ambient room temperature, and wherein the second layer is operative to change from being substantially opaque to being substantially transparent responsive to an increase in temperature of the second layer caused by heat transferring into the second layer from a hand of the user of the device, whereby the first layer becomes visible through the second layer, wherein the second layer is operative to change from being substantially transparent to being substantially opaque when the second layer decreases in temperature responsive to the hand of the user of the device being removed from contact with the exterior surface.