{
  "$type": "site.standard.document",
  "description": "[Problem] [Solving Means] A vehicle running warning device includes: a fixed sound source signal generator configured to generate a fixed sound source signal with a certain frequency distribution; a variable sound source signal generator configured to generate a variable sound source signal with a…",
  "path": "/patents/985878",
  "publishedAt": "2013-03-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q5/008",
    "JVC KENWOOD CORP [JP]"
  ],
  "textContent": "[Problem] [Solving Means] A vehicle running warning device includes: a fixed sound source signal generator configured to generate a fixed sound source signal with a certain frequency distribution; a variable sound source signal generator configured to generate a variable sound source signal with a frequency distribution having a peak frequency corresponding to each set; a sound-emitting controller configured to determine an acceleration segment of a vehicle based on vehicle speed information obtained from the vehicle to which the controller is mounted, and set the peak frequency based on the determined acceleration segment and the latest vehicle speed information; and a sound source signal adder configured to add to the fixed sound source signal a variable sound source signal in which the peak frequency is set, and output, and emits a vehicle running warning sound in consideration of a speed and an acceleration of the vehicle.",
  "title": "VEHICLE TRAVEL WARNING DEVICE"
}