Touch-panel input device

Details Touch-panel input device Touch-panel input device

1985-08-23

1987-08-25

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

340365P, G08C 2100

Patent

active

046894462

ABSTRACT:
A touch-panel input device of the photoelectric system where a ray scans above a display face of a display unit. Respective coordinate values directed by bringing a finger tip onto the display face are detected by means of interrupted rays and displayed successively on the display face in the form of an index. The detected coordinate values are input into a processor unit when switching means is pushed by the finger tip.

REFERENCES:
patent: 4459476 (1984-07-01), Weissmueller et al.
patent: 4517559 (1985-05-01), Deitch et al.

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