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1. (WO2005103625) NAVIGATION DEVICE, ROUTE SETTING METHOD, ROUTE SETTING PROGRAM, AND INFORMATION RECORDING MEDIUM ON WHICH THE ROUTE SETTING PROGRAM IS RECORDED

Pub. No.:    WO/2005/103625    International Application No.:    PCT/JP2005/006771
Publication Date: Nov 3, 2005 International Filing Date: Apr 6, 2005
IPC: G01C 21/32
G08G 1/0969
Applicants: PIONEER CORPORATION
パイオニア株式会社
INCREMENT P CORPORATION
インクリメント・ピー株式会社
SHIRAGAMI, Noriyuki
白上則幸
Inventors: SHIRAGAMI, Noriyuki
白上則幸
Title: NAVIGATION DEVICE, ROUTE SETTING METHOD, ROUTE SETTING PROGRAM, AND INFORMATION RECORDING MEDIUM ON WHICH THE ROUTE SETTING PROGRAM IS RECORDED
Abstract:
Partial updating of data recorded in a navigation device is enabled, and, even if the partial updating causes version unconformity between data for waypoint search and data for map display, route setting is reliably made. When a waypoint as a destination is specified by a user, a navigation device (100) determines whether or not the version of a map file (MPF) recorded in an HD of an HD drive (105) and the version of a waypoint search file (RF-k) to which the waypoint belongs match. When it is determined that the versions of both files (MPF, RF-k) match, a system control section (115) sets a route based on POI data of the waypoint included in the waypoint search file (RF-k). On the other hand, when it is determined that they do not match, the system control section extracts a link ID corresponding to a road present in the nearest vicinity to the waypoint from the map file (MPF) and performs route setting using the ID link.