{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
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  "description": "The vehicle (1) has a central unit (2) with a radio frequency transmitter. An antenna of the transmitter sends an inquiry message with a carrier wave frequency less than 100 mega hertz, to a portable identifier (3). The antenna has transmission electrodes (5-10) coupled to the transmitter output…",
  "path": "/patents/1082374",
  "publishedAt": "2004-11-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R25/245",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "The vehicle (1) has a central unit (2) with a radio frequency transmitter. An antenna of the transmitter sends an inquiry message with a carrier wave frequency less than 100 mega hertz, to a portable identifier (3). The antenna has transmission electrodes (5-10) coupled to the transmitter output. Each electrode is not in resonance with the frequency to radiate an electrical field in a transmission zone near the electrode. An independent claim is also included for a procedure for transmitting a signal between a vehicle equipped with a radio frequency transmitter, and a portable identifier equipped with a radio frequency receiver.",
  "title": "Onboard vehicle communication device and portable identifyng device for communicating with it"
}