FILTER
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United States of America Patent
Stats
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N/A
Issued Date -
Jun 20, 2002
app pub date -
Sep 1, 1999
filing date -
Sep 3, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention provides communications apparatus for use with an electricity distribution and/or power transmission network, including a low pass filter portion for allowing, in use, a low frequency mains electricity power signal to pass from the network and a coupling element for input and/or removal of a telecommunication signal from the network wherein the low pass filter portion and the coupling element are located in or are attached to respectively separate items of equipment. By distributing the high and low pass filter elements (i.e. the coupling element and the low pass filter portion) in this way it is possible to include the elements within existing items of utility and/or customer electricity distribution network equipment thereby reducing costs. There may be more than one low pass filter portion and preferably the low pass filter portion(s) are located in one or more elements of the equipment used to connect a consumers premises electricity network to the mains electricity network.
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