Electronic security device and method

Details Electronic security device and method Electronic security device and method

1979-04-10

1981-08-25

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

70280, H04Q 900

Patent

active

042863058

ABSTRACT:
The present invention relates generally to security systems, and more particularly, to low cost, highly reliable mechanical-electronic locking units. The electronic security devices of the invention physically include a key assembly, a receptacle for the key in a door or other secured device, a receiver for decoding the signal sent from the key, and a novel electromechanical locking-and-unlocking component which is actuated electrically in response to an appropriate signal from the receiver.

REFERENCES:
patent: 3872435 (1975-03-01), Cestaro
patent: 3889501 (1975-06-01), Fort
patent: 4104694 (1978-08-01), Hargrove
"Tampering is Out With C-MOS Lock", Electronics, 8 Aug. 1974.
Wicklund, J. B., "IC Key Opens Electronic Door Lock", Radio-Electronics, vol. 43, No. 6, Jun. 72, pp. 41-43.

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