发明名称 Method and system for providing backup driving instructions with a navigation system
摘要 A navigation method and system are disclosed whereby users of the systems are provided with backup driving instructions. A wireless communications system allows end users' computing devices to receive dynamic route guidance from a remotely located navigation services provider. The dynamic route guidance provides each end user with maneuvering instructions at appropriate locations along a route to a desired destination. In addition to the dynamic route guidance, the navigation service provider also provides the end users with backup driving instruction data. The backup driving instruction data can be used by an end user's computing device to provide backup driving instructions for traveling to the destination. The backup driving instruction data can be used in case wireless communications is interrupted.
申请公布号 US6725156(B2) 申请公布日期 2004.04.20
申请号 US20010852879 申请日期 2001.05.10
申请人 NAVIGATION TECHNOLOGIES CORP. 发明人 KAPLAN LAWRENCE M.
分类号 G09B29/00;G01C21/00;G01C21/34;G08G1/137;G09B29/10;(IPC1-7):G01C21/00;G04B19/22;G08G1/123 主分类号 G09B29/00
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