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    • 3. 发明专利
    • Navigation system
    • 导航系统
    • JP2011169824A
    • 2011-09-01
    • JP2010035319
    • 2010-02-19
    • Aisin Aw Co Ltdアイシン・エィ・ダブリュ株式会社
    • MASUDA HIROYOSHITAKEUCHI KENSUKEFUJIKAWA NORIHISAIWATSUKI KOICHITANABE YOSHIHIRO
    • G01C21/26G09B29/00
    • G01C21/32H04L63/0428H04L63/123H04L67/06
    • PROBLEM TO BE SOLVED: To enhance security concerning map data in a navigation system comprising an update unit for downloading map data in order to update the map data of a rewritable recording medium detachable from and attachable to a navigation unit. SOLUTION: In this navigation system, the update unit has an update encoding key. Map data for update are transferred to the recording medium and recorded thereon by the update unit. Hash values generated from at least part of the map data are transferred as map security data to the recording medium and recorded thereon. Medium identification information and the security data or map security processed data acquired by processing the security data, are encoded with the update encoding key. What are thus acquired are transferred as updated security data to the recording medium and recorded thereon. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提高导航系统中的地图数据的安全性,该导航系统包括用于下载地图数据的更新单元,以便更新可拆卸记录介质的地图数据,该可重写记录介质可从导航单元拆卸并附接到导航单元。

      解决方案:在该导航系统中,更新单元具有更新编码密钥。 用于更新的地图数据被传送到记录介质并由更新单元在其上记录。 从地图数据的至少一部分生成的哈希值作为地图安全数据被传送到记录介质并记录在其上。 通过处理安全数据获取的中等识别信息和安全数据或地图安全处理数据用更新编码密钥编码。 这样获得的是作为更新的安全数据被传送到记录介质并记录在其上。 版权所有(C)2011,JPO&INPIT

    • 4. 发明专利
    • Navigation system
    • 导航系统
    • JP2011169825A
    • 2011-09-01
    • JP2010035320
    • 2010-02-19
    • Aisin Aw Co Ltdアイシン・エィ・ダブリュ株式会社
    • MASUDA HIROYOSHITAKEUCHI KENSUKEFUJIKAWA NORIHISAIWATSUKI KOICHITANABE YOSHIHIRO
    • G01C21/26G09B29/00
    • G01C21/32G06F21/10H04L63/0428
    • PROBLEM TO BE SOLVED: To provide a technique for taking stronger security measures in a navigation system wherein map data are transferred to a navigation unit via a rewritable recording medium. SOLUTION: Update right information necessary for updating map data is recorded in a rewritable data area of a recording medium 4 with map data recorded therein. At the first time of data access to the recording medium 4 by the navigation unit 1, the update right information is read from the data area while being deleted from the data area. A map update deadline prepared based on the update right information read out is written into a memory of the navigation unit together with medium identification information read from an unrewritable management area. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种在导航系统中采取更强安全措施的技术,其中地图数据经由可重写记录介质传送到导航单元。 解决方案:更新地图数据所需的更新权利信息被记录在其中记录有地图数据的记录介质4的可重写数据区中。 在通过导航单元1数据访问记录介质4的第一时间,从数据区域中读取更新权利信息,同时从数据区域被删除。 基于读取的更新权信息准备的地图更新截止日期与从不可重写的管理区域读取的介质识别信息一起写入导航单元的存储器。 版权所有(C)2011,JPO&INPIT