{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The present invention provides a route calculation device, a navigation device, a route calculation method, and a navigation device that can calculate a route that allows a user to arrive at a destination or a stop-off point within a determined time period. The route calculation device according to…",
  "path": "/patents/931488",
  "publishedAt": "2017-02-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/343",
    "NEC CORP [JP]"
  ],
  "textContent": "The present invention provides a route calculation device, a navigation device, a route calculation method, and a navigation device that can calculate a route that allows a user to arrive at a destination or a stop-off point within a determined time period. The route calculation device according to the present invention includes a communication available hours acquisition unit 11 that acquires communication available hours of a plurality of branch stations that establish communication with a mobile station, a reference time acquisition unit 12 that acquires a reference time, a road information acquisition unit 13 that acquires time information of a road section, and a route calculation unit 31 that calculates a first travel route that offers the shortest required time for stopping by the branch stations based on the communication available hours, the reference time, and the time information of a road section.",
  "title": "ROUTE CALCULATION DEVICE, NAVIGATION DEVICE, ROUTE CALCULATION METHOD, NAVIGATION METHOD, AND COMMUNICATION SYSTEM"
}