{
  "$type": "site.standard.document",
  "description": "A navigation device (N1) at least includes a CPU (11) and a detector (19) generating a detection signal (S2) for determining whether a main device (1) is used inside a vehicle or not. If determining, based on the detection signal (S2) from the detector (19), that the main device (1) is used inside…",
  "path": "/patents/1110478",
  "publishedAt": "2001-09-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/26",
    "MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]"
  ],
  "textContent": "A navigation device (N1) at least includes a CPU (11) and a detector (19) generating a detection signal (S2) for determining whether a main device (1) is used inside a vehicle or not. If determining, based on the detection signal (S2) from the detector (19), that the main device (1) is used inside the vehicle, the CPU (11) operates in on-vehicle mode to carry out first navigation (present position estimation and route search) suitable for vehicles. Otherwise, the CPU (11) operates in off-vehicle mode to carry out second navigation (present position estimation and route search) suitable for pedestrians. Thus, the navigation device (N1) can automatically switch its operation mode between on-vehicle mode and off-vehicle mode.",
  "title": "Navigation device"
}