Patent ID: 7583254

Claim:
An input device, comprising; an input section generating and outputting an input signal corresponding to an operation of a device body of the input device; a coordinate detecting section detecting a rotating angle of the device body and an acceleration applied to the device body and outputting a detection signal corresponding to the detected rotating angle and the detected acceleration; a processing section generating coordinate data based on the detection signal supplied from the coordinate detecting section and generating input data based on the input signal supplied from the input section; a communicating section modulating and amplifying a carrier wave based on the coordinate data and the input data supplied by the processing section; a power generating section to generate electric power in accordance with the acceleration applied to the device body; a power storing section to store the electric power generated by the power generating section; and a power source generating section comprising a power supply circuit to generate power for driving the input section, the coordinate detecting section, the processing section, and the communicating section with the electric power generated by the power generating section or the electric power stored in the power storing section, wherein the power generating section comprises: a rotor having a center of gravity at a position deviated from a rotary shaft of the rotor and, thus, being configured to rotate in accordance with the acceleration; a step-up gear mechanism connected to the rotary shaft of the rotor to rotate an output shaft thereof at a rotational speed faster than a rotational speed of the rotor; a power generator connected to the output shaft of the step-up gear mechanism to generate electric power in accordance with the rotation of the output shaft; a flywheel to be rotated in accordance with torque of the rotor to maintain the rotation of an input shaft of the step-up gear mechanism; and a transmitting section to transmit the torque from the rotor to the flywheel when the rotational speed of the rotor is faster than the rotational speed of the flywheel, and suspend the transmission of the torque from the rotor to the flywheel when the rotational speed of the rotor is slower than the rotational speed of the flywheel, wherein the transmitting section comprises a one-way clutch mechanism between the rotary shaft and the step-up gear mechanism.