Cursor control device

Details Cursor control device Cursor control device

1995-11-29

1997-12-16

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345166, G09G 508

Patent

active

056990839

ABSTRACT:
A cursor control device includes a body accommodating a circuit board and having a bottom circular hole for accommodating a ball. The body further has a pair of encoders, each of which includes a wheel with a spindle extending in the direction of the ball and rubbing against the ball. When the ball rolls, the wheel may synchronously rotate with the ball. A light source and a sensor are respectively disposed on both sides of the wheel. The cursor control device further includes a first securing seat and a second securing seat, in which the wheel may be mounted on the first securing seat and the light source and the sensor may be mounted on the second securing seat. Both securing seats may be directly mounted onto the circuit board to achieve easy assembly.

REFERENCES:
patent: Re32632 (1988-03-01), Atkinson
patent: 5311209 (1994-05-01), Lin

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