US 2003/0201951 A1 · Wireless optic mouse

Abstract

A wireless optic mouse includes a casing inside which an optic module, a wireless communication unit and a built-in power source are arranged. The power source powers the optic module and the wireless communication unit. The optic module includes an infrared light emitting diode capable to emit an infrared signal of wavelength between 800-1,000 nm and a sensor for receiving the infrared signal that is reflected by a desk surface. The sensor generates a signal in response to the infrared optic signal received and applies the signal to the wireless communication unit that transmits the signal to a host computer in a wireless manner. The operation of the optic module is based on the infrared light that requires low power consumption but provides a high precision. Thus the service life of the power source is extended. The wireless communication between the mouse and the host computer realizes excellent mobility of the mouse.

Claims19

Dependent claims

A wireless optic mouse comprising:

a casing defining an interior space, the casing having a bottom in which a bore is defined;
an optic module arranged in the interior space of the casing and comprising a light emitting diode and a sensor having a receiving unit, the light emitting diode being arranged to project an optic signal through the bore, the optic signal being adapted to be reflected back through the bore by an external reflective surface and received by the receiving unit of the sensor, the sensor generating a signal in response to the reflected optic signal received thereby;
a wireless communication unit to which the signal generated by the sensor is applied, the wireless communication unit being adapted to transmit the signal to a host computer;
and
a power source arranged inside the casing for powering the optic module and the wireless communication unit;
wherein the optic signal emitted by the light emitting diode is an infrared light having a wavelength of 800-1,000 nm.

3 more elements

Dependencies are inferred from the claim text.

Wireless optic mouse

Life of this patent

Wireless optic mouse

Life of this patent

Abstract

Claims19