Light brightness controller for an optical mouse

Details Light brightness controller for an optical mouse Light brightness controller for an optical mouse

2004-10-15

2008-12-30

Lewis, David L (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S163000

Reexamination Certificate

active

07471282

ABSTRACT:
A light brightness controller for an optical mouse, which has a light source, a current switch and a control unit. The light source illuminates a sampling plane of a mouse. The current switch has a plurality of switches respectively connected to the light source such that the control unit connected to the current switch can control an amplitude of current flowing through the light source by turning the switches on and off, thereby controlling a brightness of the light source.

REFERENCES:
patent: 6172354 (2001-01-01), Adan et al.
patent: 7209502 (2007-04-01), Brosnan

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