Automatic coordinate determining device having electrostatic shi

Details Automatic coordinate determining device having electrostatic shi Automatic coordinate determining device having electrostatic shi

1983-03-03

1985-02-05

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

G08C 2100

Patent

active

044979770

ABSTRACT:
An automatic coordinate determining device has a coordinate tablet comprised of a plurality of conductive lines, and a hand-held probe positionable relative to the tablet for inducing a signal in the conductive lines. A thin film of non-magnetic conductive material, such as aluminum or copper, is provided above the upper surface of the conductive lines for eliminating electrostatic induction caused by floating capacitance attributable to the hand which holds the probe.

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