Method of detection of the contacting position in touch panel se

Details Method of detection of the contacting position in touch panel se Method of detection of the contacting position in touch panel se

1988-06-16

1990-01-30

Schreyer, Stafford D.

Surgery

Truss

Perineal

G08C 2100

Patent

active

048975117

ABSTRACT:
In a method of detecting a contacting position using a touch panel, a pair of resistance layers formed on two substrates are opposed with a gap. At least one conduction member is provided on one edge of one of the resistance layers and another conduction member is provided on one edge of another resistance layer which extends in a direction perpendicular to the edge of said one of the resistance layer. A constant current source is connected to one conduction member so that when the resistance layers contact at a contacting position, a constant current flows from the conduction member of one of the resistance layers to the conduction member of said another resistance layer through the contacting point. Thus, the coordinate position of the contacting point can be detected by the voltage drops on the respective resistance layers.

REFERENCES:
patent: 3005050 (1961-10-01), Koenig
patent: 3662105 (1972-05-01), Hurst et al.
patent: 3911215 (1975-10-01), Hurst et al.
patent: 4220815 (1980-09-01), Gibson et al.
patent: 4672153 (1987-06-01), Kikuchi

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