发明名称 |
PERSONAL MONITORING SYSTEM |
摘要 |
A body worn transmitter periodically transmits a coded rf signal from a rolling code generator, which is received by a base unit at the location where a person is confined, which base unit has a rolling code generator synchronized to produce the same random code signal for comparison. If proper coded signals are not received, a report is sent via telephone to a remote monitoring station. The body worn transmitter is designed to detect and defeat attempts at removal. The body worn transmitter is also used to detect the presence of a person at a particular location. By programming the time of rf transmissions, a large number of body worn transmitters can be monitored at a given location.
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申请公布号 |
WO0007155(A9) |
申请公布日期 |
2000.07.27 |
申请号 |
WO1999US17278 |
申请日期 |
1999.07.30 |
申请人 |
PITZER, BERYL, E.;GHAZARIAN, JOHN, O. |
发明人 |
PITZER, BERYL, E.;GHAZARIAN, JOHN, O. |
分类号 |
B63C9/00;G08B21/22;(IPC1-7):G08B/ |
主分类号 |
B63C9/00 |
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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