Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-01-17
2006-01-17
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S100000, C333S032000, C333S129000
Reexamination Certificate
active
06987430
ABSTRACT:
A power line communication system comprises an indoor power line and one or more power line branching apparatuses connected to the indoor power line. The power line branching apparatus comprises a communication channel that is branched off from the indoor power line and connectable to a power line communication device, and a power supply channel that is branched off from the indoor power line and connectable to electrical equipment. The power line branching apparatus further comprises an impedance matching circuit and a normal mode filter circuit. The impedance matching circuit is provided on the power supply channel, and sets the impedance of the indoor power line to a predetermined value. The normal mode filter circuit is provided on the power supply channel, and reduces normal mode noise occurring from the electrical equipment connected to the power supply channel.
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Furukawa Hirotada
Saitoh Yoshihiro
Suzuki Mitsunari
Wasaki Masaru
Glenn Kimberly
Pascal Robert
TDK Corporation
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