发明名称 Information providing system and privacy protection method
摘要 An information providing system modifies the position of a user terminal (2) that accesses a server (1) at the user terminal itself or an intervening device (4) and the modified position is sent to the server. Accordingly, a possibility that the user terminal is identified from position information is substantially lowered, resulting in further enhanced privacy protection.
申请公布号 EP1251476(A1) 申请公布日期 2002.10.23
申请号 EP20020008314 申请日期 2002.04.11
申请人 NEC CORPORATION 发明人 ICHIMURA, SHIGEHIRO
分类号 G01C21/00;G01S19/14;G06F13/00;G08G1/0962;G08G1/137;H04B7/26;H04W4/04 主分类号 G01C21/00
代理机构 代理人
主权项
地址