{
  "$type": "site.standard.document",
  "description": "Provided is a communication system and a communication device capable of inhibiting attenuation of a communication signal superimposed on a control pilot wire. An output circuit (20) sends a control pilot signal generated in a voltage generator (21) to an input circuit (60). A communication unit…",
  "path": "/patents/974778",
  "publishedAt": "2014-05-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/16",
    "SUMITOMO ELECTRIC INDUSTRIES [JP]"
  ],
  "textContent": "Provided is a communication system and a communication device capable of inhibiting attenuation of a communication signal superimposed on a control pilot wire. An output circuit (20) sends a control pilot signal generated in a voltage generator (21) to an input circuit (60). A communication unit (30) is connected between an earthed wire (3) and a control pilot wire (4) on the output side of the output circuit (20) via a bandpass filter (31). A communication unit (70) is connected between the earthed wire (3) and the control pilot wire (4) on the input side of the input circuit (60) via a bandpass filter (71). A low-pass filter (33) is interposed between the output circuit (20) and the communication unit (30). A low-pass filter (73) is interposed between the input circuit (60) and the communication unit (70).",
  "title": "COMMUNICATION SYSTEM AND COMMUNICATION DEVICE"
}