Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1993-02-05
1994-05-17
Oberley, Alvin E.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345163, 345123, G09G 508
Patent
active
053132297
ABSTRACT:
In a manual input device for controlling a cursor on a computer display (e.g., a mouse), a supplementary proportional control device including a spring-loaded lever displaceable from an equilibrium position in either of two directions and protruding out of the mouse housing is provided for concurrently controlling the scrolling operation. The supplementary control signal is generated in response to operation of a lever designed to be driven by the thumb of the same hand which holds the mouse. The control signal varies according to the discplacement amount of the lever from its equilibrium position and the displacement direction and thus is used as a scrolling rate and direction control. An associated method is provided for setting the scrolling direction in correspondence to the dominant axis of the cursor's trail. Detecting an approximately circular movement of the cursor sets the scrolling axis perpendicular to the screen plane (i.e., in a third dimension).
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Falcon Fernando D.
Gilligan Federico G.
Banerjee Aaron
Oberley Alvin E.
Striker Michael J.
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