Telegraphy – Systems – Position coordinate determination for writing
Patent
1978-04-07
1980-01-29
Robinson, Thomas A.
Telegraphy
Systems
Position coordinate determination for writing
G08C 2100
Patent
active
041862724
ABSTRACT:
A code generator which has a plurality of selectable areas on an information plane of an information plate formed with a magnetostrictive material. At least one exciting winding is wound on the information plate at one end thereof for causing at least one magnetostrictive oscillation wave in the magnetostrictive material. A plurality of detecting windings are arranged on the information plate in parallel with the exciting winding to divide the information plane into a plurality of small areas. An information designating detector is pressed against a desired one of the plurality of the small areas. Coded information indicative of a desired one of the small areas is obtained in correspondence to the number of output pulses induced from the plurality of detecting windings until a detected pulse is obtained from the information designating detector by the magnetostrictive oscillation wave resulting from pulse excitation by the exciting winding and propagated in the magnetostrictive material.
REFERENCES:
patent: 3806642 (1974-04-01), Veith et al.
patent: 3846580 (1974-11-01), Brenner
patent: 3904821 (1975-09-01), Whetstone et al.
patent: 3956588 (1976-05-01), Whetstone et al.
patent: 4018989 (1977-04-01), Snyder et al.
patent: 4143240 (1979-03-01), Kobayashi et al.
Kamibayashi Tetsusaburo
Kobayashi Toshihiko
Adams Bruce L.
Burns Robert E
Kokusai Denshin Denwa Kabushiki Kaisha
Lobato Emmanuel J.
Robinson Thomas A.
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