Patent ID: 6487493
Filing Date: 2002-11-26
Classification: G01C

Abstract:
A navigation device comprising:a platform having hardware including at least user operation means and a map database, and an operating system to control the hardware; application processing means for providing navigation services using the operating system; platform-dependent means for, when transferring information from the platform to the application processing means, transferring the information in a platform-independent format, and for, when transferring information from the application processing means to the platform, transferring the information in a platform-dependent format which depends on the platform; and user-interface-dependent means for receiving platform-dependent data corresponding to a user's operation read from the user operation means by said platform-dependent means, and for supplying the data received to the application processing means in the platform-independent format, wherein the platform-dependent means isolates the application processing means from the platform so the application processing means runs independently of the platform.