{
  "$type": "site.standard.document",
  "description": "A device is disclosed for generating navigation instructions for display on a display device of a portable navigation device, comprising: means for accessing a repository storing digital map data pertaining to a navigable network along which the navigation device can travel; means for generating…",
  "path": "/patents/1336474",
  "publishedAt": "2023-01-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3658",
    "TomTom Navigation B.V."
  ],
  "textContent": "A device is disclosed for generating navigation instructions for display on a display device of a portable navigation device, comprising: means for accessing a repository storing digital map data pertaining to a navigable network along which the navigation device can travel; means for generating, for display on the display device, a three-dimensional perspective view of a model representative of the map data as though from a camera positioned at an elevation and pitch angle behind a current position of the portable navigation device, that is updated to follow the device as it travels along a planned route through the navigable network; and means for generating, in response to detecting that the current position of the navigation device is closer than a predetermined distance to a decision point in the planned route, a fast forward preview of the upcoming decision point by advancing the position of the camera for the three-dimensional perspective view along the planned route at a speed faster than the rate of travel of the current position of the device. Methods of operation of the device, and related computer software, are also disclosed.",
  "title": "Apparatus and Methods of Displaying Navigation Instructions"
}