Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1997-08-04
1998-10-20
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345157, G09G 508
Patent
active
058253505
ABSTRACT:
Pointing apparatus and method provide for control of cursor movement and selection of elements on a computer screen. Gyroscopic elements within the pointing apparatus indicate yaw and pitch movements in free space, and a mouse ball and mouse ball encoders indicate movement on a surface. Data indicative of the distance and direction the cursor is to be moved is generated from outputs of the gyroscopic elements and the mouse ball encoders. Certain amounts of movement are deemed unintentional, and, if necessary, the pointing apparatus adjusts the data so as not to indicate movement of such amounts. By doing so, the pointing apparatus minimizes unintentional cursor movement caused by instability of the gyroscopes and the inability of a person to hold the pointing apparatus absolutely motionless.
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Case, Jr. Charles Whipple
Hotelling Steven Porter
Hovden Torbjorn
Sabina Michael Kenneth
Smith Gregory Clark
Gyration Inc.
Hjerpe Richard A.
Osorio Ricardo
Saratoga, Inc.
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