Coordinates input device

Details Coordinates input device Coordinates input device

1987-09-24

1989-04-25

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

178 20, G08C 2100

Patent

active

048250171

ABSTRACT:
Disclosed is a coordinate input device which, in a device including first collecting electrodes disposed at both edges of a first resistive film and parallel to each other and second collecting electrodes disposed at both edges of a second resistive film and parallel to each other, the first and second resistive films being disposed opposite to each other with the first and second collecting electrodes meeting at right angles to each other, and further including plural auxiliary electrodes disposed on the first and second resistive film and parallel to the respective first and second collecting electrodes, is adapted such that an unusable region is provided between the first or second collecting electrode and the respective auxiliary electrode disposed adjacent thereto.

REFERENCES:
patent: 3735023 (1973-05-01), Hurst et al.

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