发明名称 |
SECURITY SYSTEM USING MODULAR TIMERS |
摘要 |
<p>Electrical timer modules that interact with one another so as to effect random operation of a plurality of electrical devices, creating the appearance that the devices are not operated automatically. The timer modules include circuitry that allows them to wake up from a sleep state or mode within a random time interval. Upon waking from the sleep state or mode, each modular timer initially senses for the presence of a transmitted signal. Upon receipt of a transmitted signal each module returns to its sleep state or mode. If no transmitted signal is received, the first timer module that wakes up transmits a signal to the other modules and activates an electrical device connected thereto.</p> |
申请公布号 |
CA2359526(A1) |
申请公布日期 |
2003.04.22 |
申请号 |
CA20012359526 |
申请日期 |
2001.10.22 |
申请人 |
LEV, ROBERT G.;GZYBOWSKI, MICHAEL S. |
发明人 |
LEV, ROBERT G.;GZYBOWSKI, MICHAEL S. |
分类号 |
G04G15/00;(IPC1-7):G04G1/00;G08B15/00;H01H43/00 |
主分类号 |
G04G15/00 |
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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