Abstract: A non-contact input apparatus for computer peripheral includes an induction module and a pointing module. The induction module includes an electric supply coil and an induction element, and the pointing module includes an energy coil and a non-linear element. The electric supply coil is used to send a first oscillation signal. The energy coil receives the first oscillation signal. The non-linear element converts the first oscillation signal to be a second oscillation signal having multiple higher harmonics. The induction element generates a control signal based on the second oscillation signal.

Abstract: A non-contact sensing device for computer peripherals comprises a sensing unit, a controller and a transmitting unit. The sensing unit can detect a digital pointing device and generate a sensing signal. The controller outputs a starting signal and a stopping signal in different time ratios according to the sensing signal and makes the transmitting unit to generate an oscillating signal dynamically to be sent to the digital pointing device. Thereby, the electric power consumed by the non-contact sensing device can be reduced substantially.

Abstract: A non-contact input apparatus for computer peripheral includes an induction module and a pointing module. The induction module includes an electric supply coil and an induction element, and the pointing module includes an energy coil and a non-linear element. The electric supply coil is used to send a first oscillation signal. The energy coil receives the first oscillation signal. The non-linear element converts the first oscillation signal to be a second oscillation signal having multiple higherharmonics. The induction element generates a control signal based on the second oscillation signal.

Abstract: A three-dimensional (3D) control apparatus for a computer input device, used to sense 3D motion relations to output multiple 3D control signals, includes a first element comprising a plurality of sensing units and a second element comprising a plurality of transmitting coils. Each sensing unit of the first element has two adjacent receiving coils. The second element is capable of performing a 3D multi-axial motion with respect to the first element to generate multiple 3D control signals according to relative position relations between the plurality of transmitting coils and the plurality of receiving coils, so as to perform 3D control.