{
  "$type": "site.standard.document",
  "description": "A navigation terminal device includes a map information receiving unit 771 for receiving the map of the region around a reference point from the web server 3 by inputting retrieval information; a display screen 772 for displaying the received map; a route line drawing unit 774 for drawing the…",
  "path": "/patents/1100703",
  "publishedAt": "2002-10-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3614",
    "PIONEER CORP [JP]"
  ],
  "textContent": "A navigation terminal device includes a map information receiving unit 771 for receiving the map of the region around a reference point from the web server 3 by inputting retrieval information; a display screen 772 for displaying the received map; a route line drawing unit 774 for drawing the destination from the starting point of the reference point by screen scrolling, computing the orientation from the reference point to the destination, and displaying the route line which can be traced from the reference point to the destination; a map information requesting unit 775 for requesting again that the web server 3 distributes the map information of the adjacent peripheral region if the destination is not within the received map of the peripheral region; and a route line re-drawing unit 776 for searching the destination by screen scrolling the updated map information, re-compute the orientation from the reference point to the destination and re-draw the route line which can be continuously traced from the reference point to the destination. In this configuration, the operability of a terminal device having a small capacity of screen can be improved and the burden for the user is relaxed.",
  "title": "Navigation terminal device and navigation method"
}