Cursor controlling apparatus and its direction detection method

Details Cursor controlling apparatus and its direction detection method Cursor controlling apparatus and its direction detection method

1994-07-01

1998-05-05

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345166, 25023113, 25023118, G09G 508

Patent

active

057481814

ABSTRACT:
The present invention is related to a method used in a cursor controlling apparatus for detecting a direction a cursor should move on a monitor which comprises steps of: intermittently receiving a light to obtain a series of different optical quantities; generating a series of voltage signals respectively responsive to the series of optical quantities; and determining a direction by detecting a sequence of the voltage signals. The present invention can reduce manufacturing cost, economize assembling time, and obtain a more accurate direction.

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patent: 5070726 (1991-12-01), Fukui et al.
patent: 5126560 (1992-06-01), Kraus
patent: 5168268 (1992-12-01), Levy
patent: 5287120 (1994-02-01), Okada et al.
patent: 5541623 (1996-07-01), Engstrom

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