Registers – Coded record sensors – Particular sensor structure
Patent
1988-04-26
1989-11-28
Pitts, Harold I.
Registers
Coded record sensors
Particular sensor structure
235487, 235494, G06K 708
Patent
active
048839493
ABSTRACT:
When an induction coil which is supplied with an alternating current to output an induction current is moved along patterns formed on a data recording sheet, the magnitude of induction current generated in the induction coil changes in accordance with changes in the patterns. The change in the magnitude of the induction current is detected by a read device to thereby read information contained in the data recording sheet.
REFERENCES:
patent: 3165592 (1965-01-01), Brette
patent: 3689743 (1972-09-01), Rampy
patent: 3898434 (1975-08-01), Bigelow
patent: 4008493 (1977-02-01), Pizzuto
patent: 4523088 (1985-06-01), Utsch
Kokubo Hiroshi
Tsuboi Kinji
Kokubo Hiroshi
Pitts Harold I.
Tokyu Car Corporation
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