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:
Nov. 27, 2001
Filed:
Mar. 03, 2000
Kimiyoshi Machii, Hitachi, JP;
Kazuyoshi Koga, Kodaira, JP;
Shigeru Matsuo, Hitachinaka, JP;
Yoshitaka Atarashi, Hitachi, JP;
Soshiro Kuzunuki, Hitachinaka, JP;
Keiko Abe, Hitachi, JP;
Toshimi Yokota, Hitachiohta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An information providing system is capable of rendering map-information services even if the size of a free area in a memory employed in a terminal becomes small, disallowing all details of a map to be downloaded. A server employed in the information providing system has a search engine for searching a map data base for a map suitable for a destination and the present position of the terminal as received from the terminal, a route computing unit for computing a guide route from the present position to the destination, a map display location determination unit for determining a location at which route information including a map based on the calculated guide route is to be transmitted to the terminal and a thinning determination unit for thinning the information to be transmitted based on information on the terminal received from the terminal. The thinning determination unit has a priority-level definition table for defining priority levels assigned to map elements stored in the map data base.