发明名称 |
POSITION INFORMATION SYSTEM |
摘要 |
PROBLEM TO BE SOLVED: To provide a technique that allows a transmitter to transmit correct position information.SOLUTION: The position information system includes an authentication device that authenticates whether or not to validate a transmitter. When position information of the transmitter held by the authentication device in advance coincides with position information held by the transmitter, the transmitter is validated and the position information is transmitted. |
申请公布号 |
JP2014107744(A) |
申请公布日期 |
2014.06.09 |
申请号 |
JP20120260031 |
申请日期 |
2012.11.28 |
申请人 |
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD |
发明人 |
TANIGAWARA MAKOTO;KAWAGUCHI TAKAMASA;KOHIYAMA TOMOHISA |
分类号 |
H04W12/12 |
主分类号 |
H04W12/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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