{
  "$type": "site.standard.document",
  "description": "The occupant of a vehicle seat is characterized by computing a power spectrum function (56) of data obtained from a seat sensor such as a pressure sensor in a fluid-filled seat bladder or a frame-mounted vertical accelerometer. The spectrum function is integrated over a specified frequency range…",
  "path": "/patents/1067557",
  "publishedAt": "2006-05-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R21/01516",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "The occupant of a vehicle seat is characterized by computing a power spectrum function (56) of data obtained from a seat sensor such as a pressure sensor in a fluid-filled seat bladder or a frame-mounted vertical accelerometer. The spectrum function is integrated over a specified frequency range (58), and compared to a threshold value that is calibrated to compensate for vehicle speed related variability (60,62). The presence of a cinched child seat is indicated when the threshold is exceeded, and the presence of a normally seated adult is indicated otherwise (62,64,68).",
  "title": "Vehicle occupant characterization method based on the power spectrum of a seat sensor output signal"
}