Cursor device with zero-point resetting

Details Cursor device with zero-point resetting Cursor device with zero-point resetting

1991-08-13

1993-10-12

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345168, G09G 100

Patent

active

052529525

ABSTRACT:
A cursor control device moves from a precise zero rest position to define x-y coordinates for moving a cursor on a computer screen. When an actuating force is removed, the deflected control device is precisely returned to its zero rest position by operation of springs. The device provides relative cursor position data by reference to the zero rest position. The position data is converted to electrical signals which are utilized to position the cursor on the screen.

REFERENCES:
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patent: 4489304 (1984-12-01), Hayes
patent: 4587510 (1986-05-01), Kim
patent: 4590454 (1986-05-01), Zettergren
patent: 4670743 (1987-06-01), Zemke
patent: 4782327 (1988-11-01), Kley et al.
patent: 4935728 (1990-06-01), Kley
patent: 4949080 (1990-08-01), Mikan

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