发明名称 |
Method and device for easy contact between parents and children uses a mobile telephone network to transmit both ways to remind a child of its duty to send a signal, or, just one way from child to parent regarding child's whereabouts |
摘要 |
A mobile telephone radio network allows transmissions in both directions to remind a child of its duty to send a signal, or, just a one-way transmission from child to parent as a simplified alternative. Using a child's wristwatch with a direction-finding transmitter for modern satellite navigation systems makes it possible to tell parents about a child's movements at any time and to recall these later from a database.
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申请公布号 |
DE19858942(A1) |
申请公布日期 |
2000.06.15 |
申请号 |
DE1998158942 |
申请日期 |
1998.12.09 |
申请人 |
DEUTSCHE TELEKOM AG |
发明人 |
KNOERIG, WOLFGANG |
分类号 |
G04B47/00;G04G21/04;(IPC1-7):H04Q7/12 |
主分类号 |
G04B47/00 |
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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