{
  "$type": "site.standard.document",
  "description": "A map data distribution server 10 that is connected to a network 40 and distributes map data via the network 40 is provided. The map data distribution server 10 holds first map data and second map data that is of a newer version than the first map data and holds a plurality of update data including…",
  "path": "/patents/993520",
  "publishedAt": "2013-01-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3859",
    "HITACHI AUTOMOTIVE SYSTEMS LTD [JP]"
  ],
  "textContent": "A map data distribution server 10 that is connected to a network 40 and distributes map data via the network 40 is provided. The map data distribution server 10 holds first map data and second map data that is of a newer version than the first map data and holds a plurality of update data including an instruction to update the first map data for each of partitions of a given size on a map. The map data distribution server 10 decides whether a predetermined condition is fulfilled upon receiving an update request to update the first map data in a first partition out of the partitions to the second map data from a terminal 20 communicating with the map data distribution server 10 via the network 40, selects one of the plurality of update data relevant to the first partition, based on the result of the decision, and transmits the selected update data to the terminal 20.",
  "title": "Map data distribution server, map data distribution system, and map data distribution method"
}