Programmable card actuated lock

Details Programmable card actuated lock Programmable card actuated lock

1975-09-26

1976-10-05

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

70263, 317134, 340147P, 340149A, G06K 500, E05B 5300, H01H 4700, H04Q 100

Patent

active

039846580

ABSTRACT:
An access control device operated by a magnetically coded card. A self-contained unit with card receiving slot, card reader, memory and logic and control circuitry in a single small package. An access control device providing a unique number for each issued card and including a programmable memory providing storage for the code of each card permitted access and of each card the permission of which is subsequently voided. An access control device of a size suitable for positioning at the location where access is being controlled and having a capability of several thousand different card codes, without requiring a central station or wiring interconnections between devices or between the device and a central station.

REFERENCES:
patent: 3450953 (1969-06-01), Gardner
patent: 3596250 (1971-07-01), Sedley
patent: 3622991 (1971-11-01), Lehrer et al.
patent: 3702392 (1972-11-01), St. Jean
patent: 3842629 (1974-10-01), Pazer
patent: 3857018 (1974-12-01), Stark et al.
patent: 3938091 (1976-02-01), Atalla et al.

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