The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2003
Filed:
Feb. 14, 2002
Shinya Adachi, Kanagawa, JP;
Satoko Miyama, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
This invention provides a method of updating registered information when an old digital map is updated to a new digital map. In the method, coordinate series data representing a shape of a road around a registration point on the old map are acquired from a data base of the old map, a positional relationship between a reference point included in the shape of the road and the registration point is obtained, shape matching is carried out on the new map by using the coordinate series data to obtain a shape of a road on the new map corresponding to the shape of the road, and a reference point on the new map corresponding to the reference point is acquired from the shape of the road thus obtained, thereby specifying the registration point on the new map based on a positional relationship with the reference point on the new map.