Optical mouse

Details Optical mouse Optical mouse

2004-10-05

2008-08-26

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C250S221000

Reexamination Certificate

active

07417621

ABSTRACT:
An illumination control device is used in an optical pointer to cooperate with an optical sensor module and a light-emitting device to emit proper illuminance of light. The illumination control device includes a microcontroller generating a supplemental current when the optical pointer is in a power-saving state; and a controlled current amplifier in communication with the microcontroller, the optical sensor module and the light-emitting device for providing an amplified current for the light-emitting device to emit light. The controlled current amplifier amplifies a synthesized current of a light-emitting current generated by the optical sensor module and the supplemental current generated by the microcontroller to obtain the amplified current when the optical pointer is in the power-saving state.

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