Apparatus having dual modes for controlling cursor on display sc

Details Apparatus having dual modes for controlling cursor on display sc Apparatus having dual modes for controlling cursor on display sc

1994-06-13

1995-10-10

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345167, 74471XY, G09G 302

Patent

active

054574790

ABSTRACT:
An apparatus having dual modes and adapted to control a position of a cursor on a display screen comprises a ball capable of being put in a rotation for determining the position, a roller device in contact with the ball to detect the rotation of the ball, a shell having thereon an opening to protrude therefrom the ball and accommodating therein the ball and the roller device, and a cover mounted on and connected to the shell, extractable therefrom to shield the ball from being inadvertently contacted, and retractable to be received therein to permit the apparatus to be normally used. This invention provides a simple apparatus capable of functioning as either a track ball or a mouse used for controlling a cursor on a display screen, e.g. a monitor.

REFERENCES:
patent: 4562347 (1985-12-01), Hovey et al.
patent: 4786892 (1988-11-01), Kubo et al.
patent: 4939508 (1990-07-01), Lawrence et al.
patent: 5063289 (1991-11-01), Jasinski et al.
patent: 5171978 (1992-12-01), Mimlitch et al.
patent: 5280276 (1994-01-01), Kwok
patent: 5287090 (1994-02-01), Grant
patent: 5291213 (1994-03-01), Krauss
patent: 5298919 (1994-03-01), Chang

Affiliated with

Also associated with

Rating

Apparatus having dual modes for controlling cursor on display sc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus having dual modes for controlling cursor on display sc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus having dual modes for controlling cursor on display sc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2313387