{
  "$type": "site.standard.document",
  "description": "A communication navigation system is provided with a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (1, 2) for connecting them. The communication navigation terminal is provided with a route navigation device (20, 40, 50). If a movable…",
  "path": "/patents/1097912",
  "publishedAt": "2003-03-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3407",
    "PIONEER CORP [JP]"
  ],
  "textContent": "A communication navigation system is provided with a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (1, 2) for connecting them. The communication navigation terminal is provided with a route navigation device (20, 40, 50). If a movable body is on a route searched by the communication center apparatus, it performs a route navigation on the basis of a current position measured by a measurement apparatus (10, 18) and route information received from the communication center apparatus. If the movable body deviates from the searched route, it performs a simple navigation, in case that the current position is out of a service area of the communication navigation system, where it is not possible to transmit and receive the information through the communication network.",
  "title": "System and computer program for and method of communication navigation"
}