Patent ID: 6411279
Filing Date: 2002-06-25
Classification: G06F,Y02D

Abstract:
A power saving device for a cableless computer mouse having a member movable in accordance with movement of the mouse, the power saving device comprising:a wheel rotatable corresponding to the movement of the movable member; at least one pair of resilient conductive contact members having engaging sections assuming a first electrical engagement status therebetween, the engaging sections being actuable by the rotation of the wheel to change from the first electrical engagement status to a second electrical engagement status thereby generating a control signal, the engaging sections engaging a surface of the wheel, the first electrical engagement status being an open condition between the engaging sections and the second engagement status being a closed condition between the engaging sections; control means operable to cut off power supplied to a transmitter circuit of the cableless mouse when having not received the control signal from the contact members for a predetermined period and resuming the power supply when receiving the control signal again; and, shorting means formed on the wheel for shorting the engaging sections when the wheel rotates; the shorting means including a conductive trace formed on the surface of the wheel which selectively and simultaneously engages with the engaging sections for thereby shorting the engaging sections and generating the control signal.