Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1997-09-11
2000-03-21
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
345163, 345167, G09G 500
Patent
active
060408200
ABSTRACT:
An input device used as a track ball mouse and a ball mouse comprising a first housing including a ball and a first button; a second housing connected to the first housing and including a second button; a connecting unit for connecting the first and second housings; and a controlling unit for sensing a rotating direction of the ball and controlling a pointer on a screen based on the rotating direction of the ball.
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Hjerpe Richard A.
LG Electronics Inc.
Tran Henry N.
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