{
  "$type": "site.standard.document",
  "description": "The in-vehicle information apparatus 1 according to the present invention for presenting, to a user, information which includes a returning route is composed of the following: a home position holding unit 102 for holding beforehand a position of the user's home; a home arrival time holding unit 103…",
  "path": "/patents/1083977",
  "publishedAt": "2004-09-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3407",
    "MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]"
  ],
  "textContent": "The in-vehicle information apparatus 1 according to the present invention for presenting, to a user, information which includes a returning route is composed of the following: a home position holding unit 102 for holding beforehand a position of the user's home; a home arrival time holding unit 103 for holding beforehand a home arrival time of the user; a present position obtainment unit 106 for obtaining a present position of the user; a present time obtainment unit 107 for obtaining a present time; a route search unit 108 for obtaining a returning route from the present position to the user's home position, a required time for the returning route, and a departure time to leave the present position so that the user can get home by the home arrival time; and a presentation unit 111 for comparing the departure time obtained by the route search unit 108 and the present time, and presenting to the user the departure time and the returning route obtained by the route search unit 108, before the departure time is passed.",
  "title": "Navigation device with departure time determination"
}