Asynchronous digital locking system

Details Asynchronous digital locking system Asynchronous digital locking system

1976-10-28

1978-08-01

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

340164R, H04Q 900

Patent

active

041046943

ABSTRACT:
An asynchronous digital electronic combination locking system including a hand-held transmitter means for providing timed and coded transmission data, and a receiver for providing timed and coded receiver data and comparing the receiver data with the incoming transmission data. The door locking apparatus is opened only when said timed and coded data matches.

REFERENCES:
patent: 3811112 (1974-05-01), Hoven et al.
patent: 3852722 (1974-12-01), Neuville
patent: 3872435 (1975-03-01), Cestaro

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