Title:
NAVIGATION SYSTEM AND NAVIGATION APPARATUS
Document Type and Number:
Japanese Patent JP3960469
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve high-speed navigation and so on by shortening time required for wireless communication.
SOLUTION: Navigation is performed by performing bidirectional communication by wireless between a navigation apparatus NAV and a navigation server 18. The navigation apparatus NAV transmits measured position data Dpos outputted from a GPS receiver 10 to the navigation server 18 via a communication apparatus 11, and acquires displaying map data representing a map of a peripheral area comprising its own position by the position data Dpos sent back from the navigation server 18, from the communication apparatus 11. By map-matching the position data Dpos and information on roads contained in the obtained displaying map data, the navigation apparatus NAV finds a current position on a road, causes a display portion 14 to display a picture of a map on the basis of the displaying map data, and displays the current position found by the map matching lapping it over the displayed map.
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Inventors:
Masaya Hashida
Toshiki Matsukawa
Mayumi Naganuma
Toshiki Matsukawa
Mayumi Naganuma
Application Number:
JP2002126940A
Publication Date:
August 15, 2007
Filing Date:
April 26, 2002
Export Citation:
Assignee:
Pioneer Corporation
International Classes:
G01C21/00; G09B29/00; G01C21/34; G08G1/0968; G08G1/137; G09B29/10; (IPC1-7): G01C21/00; G08G1/137; G09B29/00; G09B29/10
Domestic Patent References:
| JP2001084493A | ||||
| JP2000123295A | ||||
| JP2001141492A |
Attorney, Agent or Firm:
Nobujun Kobashi
Ritsumasa Kobashi
Ritsumasa Kobashi