JP5030063B2 - ナビゲーション装置およびナビゲーションシステム - Google Patents
ナビゲーション装置およびナビゲーションシステム Download PDFInfo
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- JP5030063B2 JP5030063B2 JP2007261588A JP2007261588A JP5030063B2 JP 5030063 B2 JP5030063 B2 JP 5030063B2 JP 2007261588 A JP2007261588 A JP 2007261588A JP 2007261588 A JP2007261588 A JP 2007261588A JP 5030063 B2 JP5030063 B2 JP 5030063B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
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Description
Claims (2)
- 移動機能を有する又はユーザにより携帯される機能的装置に搭載されるナビゲーション装置と、該ナビゲーション装置に通信を介して情報を提供するサーバ装置とを有するナビゲーションシステムであって、
前記ナビゲーション装置は、
前記サーバ装置に対して、前記機能的装置の現在地及び目的地とレスポンス確認のためのメッセージを送信し、該メッセージに対する応答メッセージを該サーバ装置から受信する通信手段と、
前記メッセージの送信から応答メッセージの受信までの時間計測し、該計測した結果に基づいて通信時間に関する通信状態を示すレスポンス値を取得するレスポンス値取得手段と、
前記レスポンス値取得手段により取得したレスポンス値に基づいて最適な通信パラメータを決定し、当該ナビゲーション装置で用いる通信切断条件に関する通信パラメータに当該最適な通信パラメータを設定する通信パラメータ設定手段とを有し、
前記ナビゲーション装置の前記通信手段は、前記レスポンス値取得手段により取得したレスポンス値を前記サーバ装置へ送信し、
前記サーバ装置は、
前記ナビゲーション装置からの前記メッセージの受信に応答して前記応答メッセージを送信し、前記ナビゲーション装置から送信された前記レスポンス値を受信する第2通信手段と、
前記第2通信手段により受信した前記レスポンス値に基づいて最適な第2通信パラメータを決定し、当該サーバ装置で用いるデータ送信条件に関する第2通信パラメータに当該最適な第2通信パラメータを設定する第2通信パラメータ設定手段とを有し、
前記第2通信手段により前記現在地及び目的地に基づく走行ルートデータ及び該走行ルートの周辺地図データの全データの受信がナビゲーション装置で完了するまで前記最適な通信パラメータ及び前記最適な第2通信パラメータが逐次決定され、
前記第2通信パラメータはデータ送信に用いるバッファ長であることを特徴とするナビゲーションシステム。 - 請求項1記載のナビゲーションシステムにおいて、
前記通信パラメータは、通信の切断を判断するタイムアウト値、通信の切断後のリトラ
イ回数の少なくともいずれか1つを含むことを特徴とするナビゲーションシステム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2007261588A JP5030063B2 (ja) | 2007-10-05 | 2007-10-05 | ナビゲーション装置およびナビゲーションシステム |
US12/245,388 US8306548B2 (en) | 2007-10-05 | 2008-10-03 | Navigation device for communication to an information providing server |
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JP2007261588A JP5030063B2 (ja) | 2007-10-05 | 2007-10-05 | ナビゲーション装置およびナビゲーションシステム |
Publications (2)
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JP2009092445A JP2009092445A (ja) | 2009-04-30 |
JP5030063B2 true JP5030063B2 (ja) | 2012-09-19 |
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JP2007261588A Expired - Fee Related JP5030063B2 (ja) | 2007-10-05 | 2007-10-05 | ナビゲーション装置およびナビゲーションシステム |
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JP (1) | JP5030063B2 (ja) |
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US20090092042A1 (en) | 2009-04-09 |
JP2009092445A (ja) | 2009-04-30 |
US8306548B2 (en) | 2012-11-06 |
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