{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "A driver state warning apparatus provides a safe and effective driving by non-contact haptic stimulus to a driver using an ultrasonic signal when the driver is in a drowsy or careless state. The driver state warning apparatus includes: a detector to obtain state information of a driver; a haptic…",
  "path": "/patents/1282563",
  "publishedAt": "2021-02-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q9/00",
    "HYUNDAI MOTOR COMPANY"
  ],
  "textContent": "A driver state warning apparatus provides a safe and effective driving by non-contact haptic stimulus to a driver using an ultrasonic signal when the driver is in a drowsy or careless state. The driver state warning apparatus includes: a detector to obtain state information of a driver; a haptic stimulator to generate an ultrasonic beam and transmit the generated ultrasonic beam; and a controller to determine whether a state of the driver corresponds to a predetermined warning target state based on the obtained state information of the driver and provide a non-contact haptic stimulus by transmitting the ultrasonic beam toward the driver by controlling the haptic stimulator when the driver's state corresponds to the warning target state.",
  "title": "DRIVER STATE WARNING APPARATUS, VEHICLE AND WARNING METHOD FOR DRIVER STATE"
}