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:
Dec. 19, 2017
Filed:
Aug. 17, 2015
Wingarc1st Inc., Tokyo, JP;
WINGARC1ST INC., Tokyo, JP;
Abstract
By converting address informationinput to a geocoding unitinto a tree structure formed hierarchically in an administrative district, generating address tree information obtained by associating latitude and longitude information with at least a node of the lowest layer in each branch of the tree structure and storing the address tree information thus generated in a high-speed accessible memoryto proceed a retrieval while tracing the address tree information in order from a parent node to a child node to narrow down a retrieval range, it is possible to efficiently search latitude and longitude information corresponding to given address information therefrom and to perform a retrieval at a higher speed as compared with the related art in which access is given to a conversion table stored in a disk.