Abstract: A multi-function navigation system for guiding a user to a destination and displaying information of scenic spots stored in an electronic book comprises an input module configured to receive instructions of the user; a position detection module; an electronic book databank configured to store the electronic book information of the scenic spots and a message to define coordinates of scenic spots; an electronic map databank; a scenic spot information obtaining module; a scenic spot guidance supplement module configured to provide a navigation-linking interface to the correlative scenic spots; a scenic spot guidance function initiating module configured to link and then set the coordinates of the scenic spot as the destination; a path selection module configured to receive the present position and the destination and to determine a guidance path to the destination; and a display module configured to display the electronic book, the navigation-linking interface, and the guidance path.

Abstract: A multi-function navigation system provides an electronic map to guide the user to destinations and provides information of scenic spots stored in an electronic book. The navigation system includes: a scenic spot information searching module for searching scenic spots within the selected scope of electronic map and identifying the scenic spots included in the electronic book; a traveling information note module for providing a interface to the electronic book of the scenic spots including the electronic book; and a display module for displaying the electronic map and marks of the interface linking to the electronic book of the scenic spots.

Abstract: A method of providing a return route for a global positioning system (GPS) device is provided. When the starting point and the destination of the return route are exactly opposite to the original starting point and the destination, the GPS device plans and provides a reverse route without re-setting the starting point and the destination all over again, and therefore the time of obtaining a return route can be substantially reduced. The efficiency of the GPS device in planning routes can be effectively promoted.

Abstract: A multi-function navigation system provides an electronic map to guide the user to destinations and provides information of scenic spots stored in an electronic book. The navigation system includes: a scenic spot information searching module for searching scenic spots within the selected scope of electronic map and identifying the scenic spots included in the electronic book; a traveling information note module for providing a correlative interface to the electronic book of the scenic spots including the electronic book; and a display module for displaying the electronic map and marks of the correlative interface linking to the electronic book of the scenic spots.

Abstract: A method of providing a return route for a global positioning system (GPS) device is provided. When the starting point and the destination of the return route are exactly opposite to the original starting point and the destination, the GPS device plans and provides a reverse route without re-setting the starting point and the destination all over again, and therefore the time of obtaining a return route can be substantially reduced. The efficiency of the GPS device in planning routes can be effectively promoted.