Remote-control-operated locking/unlocking system

Details Remote-control-operated locking/unlocking system Remote-control-operated locking/unlocking system

1997-08-13

2000-03-28

Cuchlinski, Jr., William A.

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 34082569, 34082572, 70256, 70262, A04Q 100, A04Q 700

Patent

active

060437537

ABSTRACT:
A remote-control-operated locking/unlocking system includes a key which transmits a locking/unlocking signal by remote control. A locking/unlocking unit is provided with a controller for controlling a locking/unlocking operation based on a locking/unlocking signal transmitted from the key. The controller has a suitability determining section for determining the suitability of a locking/unlocking signal transmitted from the key, and an information section for providing information indicating that the use of the key is unsuitable.

REFERENCES:
patent: 4742426 (1988-05-01), Lavelle
patent: 4808995 (1989-02-01), Clark et al.
patent: 4827744 (1989-05-01), Namazue et al.
patent: 5412379 (1995-05-01), Waraksa et al.
patent: 5608272 (1997-03-01), Tanguay
patent: 5640863 (1997-06-01), Frolov
patent: 5712626 (1998-01-01), Andreou et al.

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