초록 ▼

A system and method for providing updated geographic data for use by a navigation application program. The navigation application program is at a first version level and uses geographic data in a geographic database. An updated geographic database is provided to the navigation application program. T

A system and method for providing updated geographic data for use by a navigation application program. The navigation application program is at a first version level and uses geographic data in a geographic database. An updated geographic database is provided to the navigation application program. The updated geographic database is at a second version level which is later than the first version level. Also provided to the navigation application program are one or more replacement routines. These replacement routines may be stored with the updated geographic database on a computer-readable medium or may be provided separately. The one or more replacement routines are used by the navigation application program either at initialization or during runtime. The one or more replacement routines are called to access or use the data in the updated geographic database. The one or more replacement routines are preferably in an interpretive language and executed by a virtual processor. The virtual processor may be part of the navigation application program. The one or more replacement routines can be used by the navigation application program thereby enabling the navigation application program which is at the first version level to use the updated geographic data which is at second version level.

대표청구항 ▼

[ We claim:] [1.] In combination:a computer-based navigation system including a processor and a navigation application program run on the processor, said navigation application program including programming code to provide navigation features including use of a geographic database stored on a medium

[ We claim:] [1.] In combination:a computer-based navigation system including a processor and a navigation application program run on the processor, said navigation application program including programming code to provide navigation features including use of a geographic database stored on a medium, wherein said navigation application program is at a first version level, an improvement comprising:at least one replacement routine, wherein said replacement routine is at a second version level, wherein said second version level is later than said first version level, and wherein said at least one replacement routine at said second version level is called by said navigation application program at said first version level and executed to use an updated geographic database stored on an updated medium to perform part of said features of said navigation application program.