Patent ID: 7490134
Filing Date: 2009-02-10
Classification: G06F,G06K,G06Q,H04L

Abstract:
1. An information-supply system that uses code information comprising: a code-issuing server system that encodes part of a character string to generate an encoded portion by a secret key and issues code information that is a combination of the encoded portion and an open portion including a Web address; an information-supply server system that includes an open-key management server that manages an open key for decoding the encoded portion of said code information and an advertiser server that manages information supplied via a network; and a portable terminal having an imaging function that uses an imaging element, and that photographs said code information, obtains a Web address that is contained in the open portion by decoding said open portion of said photographed code information, and accesses a Web page via said network using said obtained Web address and sends an encoded portion that is contained in said code information; wherein said information-supply server system decodes, using said open key, said encoded portion that is sent in response to access from said portable terminal based on a Web address obtained by decoding from said portable terminal and supplies information corresponding to the decoded encoded portion from said advertiser server to said portable terminal via said network.