发明名称 Information providing system and privacy protection method
摘要 An information providing system modifies the position of a user terminal that accesses a server at the user terminal itself or an intervening device 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 US2002152269(A1) 申请公布日期 2002.10.17
申请号 US20020118945 申请日期 2002.04.10
申请人 ICHIMURA SHIGEHIRO 发明人 ICHIMURA SHIGEHIRO
分类号 G01C21/00;G01S19/14;G06F13/00;G08G1/0962;G08G1/137;H04B7/26;H04W4/04;(IPC1-7):G06F15/16 主分类号 G01C21/00
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