专利名称：Navigation system, navigation apparatus,
and data center
发明人：Shinji Kutomi申请号：US13599054申请日：20120830公开号：US09127954B2公开日：20150908
专利附图：
摘要：A navigation system includes a navigation apparatus, a data center, acommunication-defective region acquisition device, a communication-defective regionsearch device, and a target region specify device. The data center performs transmits an
update data of a target region to the navigation apparatus. The communication-defectiveregion acquisition device acquires information of a communication-defective region. Thecommunication-defective region search device searches for a part of the communication-defective region as a target communication-defective region, which includes a routescheduled to go through. The target region specify device specifies the target regionbased on the target communication-defective region. The data center includes an updatedata transmission device that transmits the update data of the target region to thenavigation apparatus before the navigation apparatus enters the target communication-defective region.
申请人：Shinji Kutomi
地址：Ichinomiya JP
国籍：JP
代理机构：Posz Law Group, PLC
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容