Computer pointing device

Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device

Patent

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Details

345163, 345167, G09G 508

Patent

active

055744800

ABSTRACT:
The present invention provides an improved computer pointing device such as a trackball or mouse, for example. The improved computer pointing device allows a user to set a communications protocol for use with a particular computer system by using a user-friendly configuration program designed for operation on a different platform and by using a different communications protocol. Additionally, the computer pointing device includes an LED encoder illumination control system to provide varying levels of LED intensities. During normal operation, an LED operates at a particular intensity level. The intensity level is controllable in discrete steps: LED power is off for power up, LED power is reduced for testing to test for unacceptable signal levels, and LED power may be increased beyond normal levels to counteract diminution of light intensity as the LED ages.

REFERENCES:
patent: 4912672 (1990-03-01), Giorgio
patent: 5119077 (1992-06-01), Giorgio

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