Methods, systems, and products for interfacing with...

Details Methods, systems, and products for interfacing with... Methods, systems, and products for interfacing with...

2007-08-24

2009-12-01

Goins, Davetta W (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C700S300000

Reexamination Certificate

active

07626493

ABSTRACT:
Methods, systems, and products are disclosed for interfacing with a power line network. Electrical power is received from a source, and a voltage of the electrical power is monitored. When the voltage is inadequate, then an alternate power source is automatically connected. A frequency of electrical power provided by the alternate power source is monitored, and high frequency data signals are separated from low frequency power signals.

REFERENCES:
patent: 5699276 (1997-12-01), Roos
patent: 5777769 (1998-07-01), Coutinho
patent: 6751563 (2004-06-01), Spanier et al.

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