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Noise trap arrangement for AC power line communication systems

  • US 4,344,066 A
  • Filed: 10/27/1980
  • Issued: 08/10/1982
  • Est. Priority Date: 10/27/1980
  • Status: Expired due to Term
First Claim
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1. In a communication system operable to transmit encoded room status information and other data on neutral and ground lines included in an AC power line which also includes a hot line and which extends between separate areas in a building complex such as the rooms of a hotel, motel, or hospital, the improvement comprising noise trap means connected between the hot and neutral lines of the AC power line for attenuating noise on the hot and neutral lines.

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