Method and apparatus for power line communications
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United States of America Patent
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-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Sep 21, 1990
filing date -
Sep 21, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for power line communications which utilizes common mode transmission and reception of communication signals over power lines. The communication signals are sent and received between the power and neutral lines, and the ground line. A common mode choke in the power lines presents a relatively high impedance to the communication signals and prevents them from being shorted to the ground line. The choke is substantially transparent to the power delivery current.
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