Patent ID: 6912463
Filing Date: 2005-06-28
Classification: G01C

Abstract:
1. A GPS navigation apparatus for having a present position displayed on a display unit thereof while receiving a GPS signal to store data of the present position in memory means at an interval of fixed movement distance or fixed time interval, and having the position data stored in said memory means as specific points when a designation is given by point establishing means during a movement process, and capable of giving a track name to a group of time series data, composed of said movement locus data from the start point to the destination and position data of said specific points, for registering, comprising: track designating means for having a previously registered track name displayed on said display unit for selecting and designating a desired track, route creation designating means for designating creation of a conversion route with respect of the track designated by said track designating means, data extracting means for extracting position data only of the start point, specific points, and the destination from data group of the designated track names based on designation by said route creation designating means, and interpolation data producing means for producing interpolation data linearly connecting between positions indicated by data extracted by said data extracting means in said time series sequence, wherein, in a navigation mode, the conversion route having said start point, specific points, and destination connected by straight line segments by use of said interpolation data is displayed on said display unit for execution of the navigation.