Cursor control device

Details Cursor control device Cursor control device

1997-05-07

2000-03-07

Saras, Steven J.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345158, 345159, 345160, 345165, 341 13, G09G 508

Patent

active

06034668&

ABSTRACT:
The present invention relates to computer control devices and, more particularly, to devices for controlling the position of a cursor on a computer display. The invention permits improved technology for cursor control devices. Certain embodiments of devices according to the present invention offer an edge detection system that uniquely identifies the maximum and minimum edges for use in a cursor control device, utilizing improved grating plates. Certain embodiments offer more reliable switch cycle detection in a cursor control device.

REFERENCES:
patent: 3553470 (1971-01-01), Dench
patent: 4581603 (1986-04-01), Ingold et al.
patent: 4782327 (1988-11-01), Kley et al.
patent: 4935728 (1990-06-01), Kley
patent: 5357094 (1994-10-01), Baldwin
patent: 5704037 (1997-12-01), Chen
patent: 5760764 (1995-12-01), Martinelli
"Switch Debounce Logic", IBM Technical Disclosure Bulletin, vol. 22, No. 8b, Jan. 1980, pp. 3749-3750, New York, USA.
Patent Abstracts of Japan, vol. 009, No. 185 (E-332), Jul. 31, 1985.

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