Power supply line communication modem and power supply line communication system
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United States of America Patent
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N/A
Issued Date -
Jun 29, 2006
app pub date -
Mar 2, 2004
filing date -
Mar 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A modem for power-line communications (20A) comprises input/output terminals (71a and 71b) and input/output terminals (72a to 72d). The input/output terminals (71a and 71b) are connected to a power line and perform input and output of power-line communications signals. The input/output terminals (72a to 72d) perform input and output of data signals from and to a communications apparatus through a cable. The modem (20A) further comprises: a modem main body (73); a common mode filter (80) provided between the modem main body (73) and the input/output terminals (71a and 71b); and a common mode filter (90) provided between the modem main body (73) and the input/output terminals (72a to 72d).
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