X-Y Position indicator for a display system

Details X-Y Position indicator for a display system X-Y Position indicator for a display system

1984-04-18

1986-01-28

Little, Willis

Geometrical instruments

Miscellaneous

Light direction

33141R, 331415, G01B 702

Patent

active

045661910

ABSTRACT:
An X-Y position indicator control for manual movement over any surface to move a cursor over the display on a cathode ray tube, the indicator control generating signals indicating its position to cause a cursor to be displayed on the tube at the corresponding position. The indicator control mechanism contains X-Y position wheels mounted with their axes in perpendicular planes, which rotate according to the X and Y movements of the mechanism. As the position indicator control is moved along a surface each position wheel is resiliently urged into contact with the surface.

REFERENCES:
patent: 3613090 (1971-10-01), Mason
patent: 3892963 (1975-07-01), Hawley et al.
patent: 4246703 (1981-01-01), Robinet

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