发明名称 Apparatus and method for synchronizing visual/audible alarm units in an alarm system
摘要 An apparatus and concomitant method of reducing the number of synchronization pulses transmitted to the alarm units for increasing the reliability of the overall alarm system is disclosed. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones.
申请公布号 US2001006366(A1) 申请公布日期 2001.07.05
申请号 US20010793215 申请日期 2001.02.26
申请人 WHEELOCK, INC. 发明人 CURRAN JOHN W.;KOSICH JOSEPH
分类号 G08B7/06;G08B27/00;(IPC1-7):G08B25/00 主分类号 G08B7/06
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