G - Physics – 05 – D
Patent
G - Physics
05
D
G05D 1/00 (2006.01) G01C 21/26 (2006.01) G06F 9/445 (2006.01)
Patent
CA 2155593
A vehicle navigation system includes a CPU which has an associated CPU memory space. The CPU is operable to begin executing code at an absolute address within the CPU memory space. A primary memory is coupled to the CPU which occupies a first memory space within the CPU memory space, the first memory space including the absolute address. The system also includes a removable secondary memory which occupies a second memory space within the CPU memory space. An interface to which the secondary memory is removably coupled is coupled to the CPU. The interface is for facilitating communication between the CPU and the secondary memory. Finally, means are provided for switching the first and second memory spaces within the CPU memory space so that the second memory space includes the absolute address. In a more specific embodiment, the vehicle navigation system includes a database medium for storing a map database and an upgraded navigation code. In one embodiment, the first navigation code is replaced in the primary memory with the upgraded navigation code from the database memory when the vehicle navigation system is booted up and the first navigation code is a different version than the upgraded navigation code. In another embodiment, the system prompts the user with the option of upgrading the navigation software when different versions are detected.
Oyen Wiggs Green & Mutala Llp
Zexel Corporation
LandOfFree
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