Patent ID: 8560235
Filing Date: 2013-10-15
Classification: G01C

Abstract:
1. An absolute-movement-path calculating apparatus comprising: a direction acquiring part detecting a movement direction of a terminal by referring a standard axis defined for a terminal in advance at a given timing; a movement-distance calculating part calculating a movement distance of the terminal at the given timing; a relative-movement-path calculating part calculating a relative movement path, based on both the detection result in the direction acquiring part and the detection result in the movement-distance calculating part, and storing the relative movement path; an absolute-position acquiring part acquiring an absolute position of the terminal, which corresponds to a start position of the calculated relative movement path and which is indicated by an absolute coordinate represented by a longitude and latitude, and storing the absolute position; and an absolute-movement-path calculating part calculating, each time the absolute positions of a given number are stored, a correction value from the relationship between at least two absolute positions among the absolute positions of the given number, and the relative positions corresponding to the absolute positions and calculating an absolute movement path of the terminal indicated by the absolute coordinate from the correction value and the relative movement path.