{
  "$type": "site.standard.document",
  "description": "A navigation system (1) adapted to be installed in a vehicle and including route guidance function comprises a storing unit (22) for storing vehicle emission information (40) which is indicative of an emission characteristic of the vehicle, and a route processing unit (21) adapted for calculating a…",
  "path": "/patents/1008462",
  "publishedAt": "2011-10-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3423",
    "ALPINE ELECTRONICS INC [JP]"
  ],
  "textContent": "A navigation system (1) adapted to be installed in a vehicle and including route guidance function comprises a storing unit (22) for storing vehicle emission information (40) which is indicative of an emission characteristic of the vehicle, and a route processing unit (21) adapted for calculating a route (51) to a destination, wherein the route processing unit (21) is adapted for processing the vehicle emission information (40) and for calculating a route (51) to a destination depending on the vehicle emission information. In this way, route calculation may take account of any low emission zones and a permission of the vehicle to enter such low emission zones depending on its emission characteristic.",
  "title": "Navigation system for a vehicle and method of route searching"
}