Coordinate input device with pressure-sensitive rubber sheet

Details Coordinate input device with pressure-sensitive rubber sheet Coordinate input device with pressure-sensitive rubber sheet

1982-08-13

1984-10-02

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

G08C 2100

Patent

active

044750080

ABSTRACT:
In a coordinate input device which comprises a resistance plate and a pressure-sensitive rubber sheet placed on the resistance plate so that DC voltage is alternately applied to the resistance plates in the X-axis direction and Y-axis direction of the resistance plate, a surface electrode plate is placed on the pressure-sensitive rubber sheet. The surface electrode plate has a soft synthetic resin plate and a metallic electrode layer formed on the surface of the synthetic resin plate, and the metallic electrode layer is so placed on the pressure-sensitive rubber sheet as to contact the pressure-sensitive rubber sheet.

REFERENCES:
patent: 3624619 (1971-11-01), Ambrosio
patent: 3798370 (1974-03-01), Hurst
patent: 4079194 (1978-03-01), Kley
patent: 4220815 (1980-09-01), Gibson et al.
Patents Abstracts of Japan, vol. 5, No. 48(P-55) (720), Apr. 7, 1981.

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