Abstract: A navigation apparatus includes a memory that stores registered routes, wherein each registered route includes a previously traveled route, a corresponding starting point, and a corresponding destination point. The navigation apparatus includes a controller that searches for a route from a specified starting point to a specified destination point, compares the searched route with the registered routes, and utilizes, if a corresponding starting point is substantially identical to the specified starting point or a corresponding destination point is substantially identical to the specified destination point, a portion of a registered route including the substantially identical starting point or the substantially identical destination point as a navigation route.

Abstract: A navigation apparatus includes a memory that stores registered routes, wherein each registered route includes a previously traveled route, a corresponding starting point, and a corresponding destination point. The navigation apparatus includes a controller that searches for a route from a specified starting point to a specified destination point, compares the searched route with the registered routes, and utilizes, if a corresponding starting point is substantially identical to the specified starting point or a corresponding destination point is substantially identical to the specified destination point, a portion of a registered route including the substantially identical starting point or the substantially identical destination point as a navigation route.

Abstract: A navigation system for searching coordinates of a telephone number, displaying a map and setting a point, the navigation system comprising a memory for storing information on a subscriber inclusive of coordinates corresponding to a telephone number and map data, an input device for inputting a telephone number, and a control device for searching a subscriber and coordinates based on the input of the telephone number, setting specific coordinates based on the searched coordinates and displaying a map with the specific coordinates located at the center of the map on a condition that the searched subscriber is a specific classified subscriber, wherein a map with a vague point located at the center of the map is displayed while a private home is not directly displayed thereon when the subscriber is a private subscriber of the input telephone number.