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

1987-07-24

1988-06-28

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

33 1M, 33122, 74471XY, G08C 2100, G05G 900, G01B 902

Patent

active

047541032

ABSTRACT:
An X-Y position indicator control for manual movement over any surface to move a cursor over a 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. Each position wheel is mounted on a flexible shaft. Each position wheel is resiliently urged into contact with the surface by the flexible shaft.

REFERENCES:
patent: 4628755 (1986-12-01), Hawley

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