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:
Jun. 03, 2008
Filed:
Sep. 30, 2005
Shigeru Matsuo, Hitachinaka, JP;
Kimiyoshi Machii, Hitachi, JP;
Katsuaki Tanaka, Hitachi, JP;
Kozo Nakamura, Hitachiota, JP;
Yoshinori Endo, Mito, JP;
Michio Morioka, Hitachi, JP;
Yoshitaka Sumitomo, Hitachinaka, JP;
Shigeru Matsuo, Hitachinaka, JP;
Kimiyoshi Machii, Hitachi, JP;
Katsuaki Tanaka, Hitachi, JP;
Kozo Nakamura, Hitachiota, JP;
Yoshinori Endo, Mito, JP;
Michio Morioka, Hitachi, JP;
Yoshitaka Sumitomo, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Xanavi Informatics Corporation, Kanagawa, JP;
Abstract
In a communication-type navigation system for downloading map data according to the present invention, a reduction in the amount of map information to be transferred, correction of a position measured by a GPS, and delivery of advertisements are effected. In this system, a terminalstores rough map data in advance. Then, when detailed map data is required, it is downloaded from a map data delivery center to the terminal. Further, together with the map data, GPS correction information is delivered to the terminalfrom the map data delivery center. Still further, coupon information associated with an advertisement is displayed and an electronic mail on the coupon information is issued, by the map data delivery center.