Communications: electrical – Systems – Network signaling
Reexamination Certificate
2007-08-14
2007-08-14
Goins, Davetta W. (Department: 2612)
Communications: electrical
Systems
Network signaling
C340S506000, C340S644000, C340S661000
Reexamination Certificate
active
10433877
ABSTRACT:
The circuit monitoring device is disclosed. The device is for monitoring circuit resistance. At configurable thresholds digital flags are triggered, the device can be used as a Security/Building management system. The device uses open technology is fully scaleable and allows programmable logic controllers to be used as security management systems. Using a soft logic option a PC could take the place of the PLC.
REFERENCES:
patent: 4857912 (1989-08-01), Everett et al.
patent: 5895445 (1999-04-01), Hong et al.
patent: 6118373 (2000-09-01), Mandry
patent: 6353393 (2002-03-01), Nylander
patent: 6496342 (2002-12-01), Horvath et al.
Goins Davetta W.
Hahn Kirk
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