System and method of updating communications in a security syste

Details System and method of updating communications in a security syste System and method of updating communications in a security syste

1997-03-12

1999-09-14

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082531, 34082534, 307 103, 307 105, G08C 1900, B60R 2504

Patent

active

059529377

ABSTRACT:
An anti-theft system includes a strategy for providing secure communications between a system controller and a remote signaling device. A communications initiator allows the transfer of information or signals between the system controlling and the remote signaling device only under pre-defined conditions. The system controller preferably includes a transmitter portion for transmitting signals or information to the remote device and a receiver portion for receiving signals from the remote device. Similarly, the remote device preferably includes a transceiver so that two-way communication is accomplished between the controller and the remote signalling device.

REFERENCES:
patent: 3706094 (1972-12-01), Cole et al.
patent: 4719460 (1988-06-01), Takeuchi et al.
patent: 4737789 (1988-04-01), Nysen
patent: 4980680 (1990-12-01), Knoll et al.
patent: 5684339 (1997-11-01), Treharne
patent: 5723912 (1998-03-01), Ahrabain et al.
patent: 5739747 (1998-04-01), Flick
patent: 5774065 (1998-06-01), Mabuchi et al.

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