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:
Oct. 29, 2013
Filed:
Mar. 15, 2011
Atsushi Tanabe, Anjo, JP;
Kazunori Watanabe, Okazaki, JP;
Kenji Nagase, Okazaki, JP;
Tetsuo Kumagai, Okazaki, JP;
Atsushi Tanabe, Anjo, JP;
Kazunori Watanabe, Okazaki, JP;
Kenji Nagase, Okazaki, JP;
Tetsuo Kumagai, Okazaki, JP;
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A method for switching a reference map data in a navigation device having a map data memory for storing a plurality of map data, the navigation device executing a navigation function with using a first map data among the plurality of map data stored in the map data memory as the reference map data, the method includes: reading out a second map data from a memory medium; determining whether the map data memory already stores a same map data as the second map data; and switching the reference map data from the first map data to the same map data as the second map data when the map data memory already stores the same map data as the second map data in the memory medium.