Power line communication system using hybrid-fiber coaxial and communication device used in the system
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United States of America Patent
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Mar 6, 2012
Grant Date -
Dec 25, 2008
app pub date -
Nov 29, 2006
filing date -
Nov 29, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A communication equipment which is utilized in a power line communication (PLC) system utilizing a hybrid fiber coax (HFC) which includes a PLC optical network unit, a PLC trunk bridge amplifier, a PLC distribution amplifier, and a PLC coupling device. In this instance, the PLC optical network unit does not require a PLC protocol conversion of an Ethernet signal by a cable modem and a PLC modem in each subscriber location, and enables a PLC communication between the each subscriber location and a communication terminal utilizing a PLC Ethernet signal as is, by receiving an optical signal from an optical transmitter via an optical fiber, converting the optical signal into the PLC Ethernet signal corresponding to a predetermined PLC protocol, and transmitting the PLC Ethernet signal to at least one subscriber location via a coaxial cable.
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