Display control apparatus having a cursor

Details Display control apparatus having a cursor Display control apparatus having a cursor

1986-03-28

1988-08-30

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340706, 340709, G09G 100

Patent

active

047680288

ABSTRACT:
The apparatus includes alignment means (13, 14) for determining the direction of a sight-line (12) extending from an observer (11) to a display surface (10), projection means (15, 16) for projecting an image of a graticule into the sight-line for movement therewith, and control means (17) operable to cause the display of a movable cursor on the display surface (10) when the sight-line (12) intersects the display surface.

REFERENCES:
patent: 4349815 (1982-09-01), Spooner
patent: 4439755 (1984-03-01), LaRussa
patent: 4565999 (1986-01-01), King et al.
patent: 4682159 (1987-07-01), Davison
patent: 4688037 (1987-08-01), Krieg
"Eye-ball Control", by Dan Boyle; Interavia, vol. 34, Sep. 1979.

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