{
  "$type": "site.standard.document",
  "description": "A navigation terminal 2 loaded in a vehicle 1 is provided with a wireless communication device connectable to a movable communications network 3 and a present position detection device and instructs implementation of a predetermined navigation function. The gateway apparatus 4 connects the movable…",
  "path": "/patents/1110336",
  "publishedAt": "2001-09-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/26",
    "PIONEER CORP [JP]"
  ],
  "textContent": "A navigation terminal 2 loaded in a vehicle 1 is provided with a wireless communication device connectable to a movable communications network 3 and a present position detection device and instructs implementation of a predetermined navigation function. The gateway apparatus 4 connects the movable communications network 3 and the Internet 5 and implements protocol conversion and charging processing. A navigation server 6 acquires positional data of the vehicle 1 from the navigation terminal 2 via the Internet 5, discriminates map data to be a distribution object to the navigation terminal 2, and generates navigation information based on the instructed navigation function to provide it to the navigation terminal 2. A map search server 7 reads map data discriminated as the distribution object from a map data base 8 accumulating map data and distributes them to the navigation terminal 2 via the Internet 5.",
  "title": "Navigation information providing server"
}