Two-dimensional coordinate detecting apparatus

Details Two-dimensional coordinate detecting apparatus Two-dimensional coordinate detecting apparatus

1983-06-27

1986-07-22

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

G08C 2100

Patent

active

046021264

ABSTRACT:
A two-dimensional coordinate detecting apparatus for use, e.g. over a CRT screen, is arranged such that a potential gradient layer is spaced from a detector layer, one of which is formed of a plurality of fragmentary strips. At a depressed position, the potential gradient layer and the detector layer come into contact, and the coordinates of the depressed position can be detected, by, for example, the potential at the depressed portion, or from factors such as the timing of the voltage detection.

REFERENCES:
patent: 3906190 (1975-09-01), Light
patent: 4149029 (1979-04-01), Pobgee

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