Magnetic identification apparatus

Details Magnetic identification apparatus Magnetic identification apparatus

1974-04-26

1976-04-27

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

360 88, G06K 708, G11B 1542

Patent

active

039537129

ABSTRACT:
Magnetic identification apparatus is disclosed in which a magnetically coded instrument such as a key or card is inserted into a reader which reads the recorded code. The code is recorded by disposition of discrete magnets in the instrument as the instrument is inserted into the reader, the movement of the discrete magnets relative to sensor elements in the reader causes the sensor elements to be energized. The energization of certain sensor elements is an indication of the recorded code.

REFERENCES:
patent: 2254933 (1941-09-01), Bryce
patent: 2781972 (1957-02-01), Chaimowicz
patent: 2833475 (1958-05-01), Dedek
patent: 3154761 (1964-10-01), O'Gorman
patent: 3274352 (1966-09-01), Ryno et al.
patent: 3422252 (1969-01-01), Cooper, Jr.
patent: 3513298 (1970-05-01), Riddle et al.
patent: 3531627 (1970-09-01), Ham
patent: 3564214 (1971-02-01), Cooper, Jr.
patent: 3581030 (1971-05-01), Sedley
patent: 3651312 (1972-03-01), Barney
patent: 3652829 (1972-03-01), Hayakawi et al.
patent: 3862399 (1975-01-01), Cain

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