Abstract: A wireless pointing device, such as a computer mouse, employs self-generated electric energy to power itself and to recharge its internal energy cell. The self-generated power may come from a flywheel coupled to a generator, from a photovoltaic cell, from a secondary coil inductively coupled to an alternating current-powered primary coil in a mouse pad, or from another source. The mouse can also include a movement detector for indicating when the mouse is in use. When the mouse is not in use for a predefined time period, the mouse turns itself off, or enters a low power consumption state, to conserve the energy stored in its internal energy cell.

Abstract: A human interface device (HID), comprising A human activity detector, a wireless communication link for communicating a signal corresponding to at least one human activity to a receiver, and a wireless powering device for supplying power to power at least the wireless communication device. The wireless powering device may be an inductive coil to scavenge magnetic field energy, an electromechanical energy converter, a fuel cell, or the like.