Spot searching device, navigation apparatus, spot searching...

Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment

Reexamination Certificate

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Reexamination Certificate

active

07599791

ABSTRACT:
Enabling a partial update of data for spot search and improvement of update operation efficiency.The data for spot search is constituted by (a) a plurality of spot search files RF-k having constitutional elements of POI data, (b) a menu display file MNF for displaying a search screen, and (c) an area table TBL. When periphery search is carried out, a mesh code where a spot on map designated by a user belongs is specified on the basis of the menu display file MNF and a search key containing the mesh code is generated. Further, the spot search file RF-k corresponding to the search key is specified on the basis of the area administration table TBL and extracts POI data corresponding to a facility, existing in a periphery of a spot which is designated by the user, is extracted out of the POI data contained in the spot search file RF-k.

REFERENCES:
patent: 6922633 (2005-07-01), Takenaka
patent: 2005/0050036 (2005-03-01), Araki
patent: 2007/0198176 (2007-08-01), Endo et al.
patent: 2007/0219716 (2007-09-01), Shiragami
patent: 10-307833 (1998-11-01), None
patent: 2001-050768 (2001-02-01), None
patent: 2001-083988 (2001-03-01), None
patent: 2001-109773 (2001-04-01), None
patent: 2002-107153 (2002-04-01), None

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