Apparatus and method for synchronizing visual/audible alarm units in an alarm system
    14.
    发明授权
    Apparatus and method for synchronizing visual/audible alarm units in an alarm system 有权
    用于在报警系统中同步视觉/听觉报警单元的装置和方法

    公开(公告)号:US07079011B2

    公开(公告)日:2006-07-18

    申请号:US11114373

    申请日:2005-04-26

    IPC分类号: G08B25/00

    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. A second signal sent in close proximity to the synchronization signal is implemented to trigger a second function of the alarm units, such as a silence function.

    摘要翻译: 公开了一种减少发送到报警单元的同步脉冲数量以提高整个报警系统的可靠性的装置和伴随方法。 同步信号被实现为参考或复位信号,报警单元从该参考或复位信号得到参考时间以开始启动报警单元。 因此,当报警单元接收到参考同步脉冲时,报警单元将参考同步脉冲作为参考点施加时间以触发一系列闪烁或音频音调。 实现靠近同步信号发送的第二信号,以触发警报单元的第二功能,诸如静音功能。

    Apparatus and method for synchronizing visual/audible alarm units in an alarm system

    公开(公告)号:US06583718B2

    公开(公告)日:2003-06-24

    申请号:US10119229

    申请日:2002-04-09

    IPC分类号: G08B2500

    CPC分类号: G08B27/00 G08B7/06

    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.

    Apparatus and method for synchronizing visual/audible alarm units in an alarm system
    19.
    发明授权
    Apparatus and method for synchronizing visual/audible alarm units in an alarm system 有权
    用于在报警系统中同步视觉/听觉报警单元的装置和方法

    公开(公告)号:US06369696B2

    公开(公告)日:2002-04-09

    申请号:US09793215

    申请日:2001-02-26

    IPC分类号: G08B2500

    CPC分类号: G08B27/00 G08B7/06

    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.

    摘要翻译: 公开了一种减少发送到报警单元的同步脉冲数量以提高整个报警系统的可靠性的装置和伴随方法。 同步信号被实现为参考或复位信号,报警单元从该参考或复位信号得到参考时间以开始启动报警单元。 因此,当报警单元接收到参考同步脉冲时,报警单元将参考同步脉冲作为参考点施加时间以触发一系列闪烁或音频音调。

    Adjustable strobe with temperature stabilization
    20.
    发明授权
    Adjustable strobe with temperature stabilization 失效
    可调节频闪,温度稳定

    公开(公告)号:US5355116A

    公开(公告)日:1994-10-11

    申请号:US31947

    申请日:1993-03-16

    IPC分类号: G08B7/06 G08B5/00

    CPC分类号: G08B7/06

    摘要: A strobe alarm circuit includes a voltage source circuit which has a capacitor connected across its output terminals. The voltage source circuit is connected to a flash circuit which includes a flashtube shunted by a trigger circuit. The trigger circuit causes the flashtube to flash when the voltage across the voltage source circuit capacitor reaches a predetermined threshold firing voltage. A resistor divider network is employed in the trigger circuit to ensure that the flashtube is triggered at virtually the same instant as the voltage across the capacitor exceeds the trigger threshold value.

    摘要翻译: 选通报警电路包括电压源电路,其电容器连接在其输出端子两端。 电压源电路连接到包括由触发电路分流的闪络管的闪光灯电路。 当电压源电路电容器两端的电压达到预定阈值点火电压时,触发电路使闪光管闪烁。 在触发电路中采用电阻分压网络,以确保闪光管在几乎与电容两端的电压超过触发阈值相同的瞬间被触发。