{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The system comprises an ultrasound transmitter and an ultrasound receiver that are attached to an interior space of a motor vehicle, for contactless monitoring of the interior space. The transmitter and the receiver are operable at a fixed pulse repetition rate in a pulse-echo operating mode and a…",
  "path": "/patents/973233",
  "publishedAt": "2014-06-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q3/74",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "The system comprises an ultrasound transmitter and an ultrasound receiver that are attached to an interior space of a motor vehicle, for contactless monitoring of the interior space. The transmitter and the receiver are operable at a fixed pulse repetition rate in a pulse-echo operating mode and a doppler operating mode, and are configured to detect a position, a movement speed and/or a movement direction of a hand of a vehicle occupant such that the lamps (29a,29b) of the vehicle are actuated in the operating modes.",
  "title": "Ultrasonic surveillance system for the interior of a motor vehicle"
}