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公开(公告)号：US06987445B1
公开(公告)日：2006-01-17
申请号：US09667981
申请日：2000-09-22
IPC分类号： G08B3/00
CPC分类号： G10K9/22
摘要： The invention is an modified audible signal, such as a piezoelectric noise-making and audible signaling device, which further includes a hydrophobic covering material, such as polytetrafluoroethylene (PTFE). The hydrophobic covering material is known to be water resistant, but does not effect the sound of the audible signaling device, thereby delaying or preventing the failure of the audible signaling device from water corrosion.
摘要翻译： 本发明是一种改进的可听信号，例如压电噪声制作和听觉信号装置，其还包括疏水性覆盖材料，例如聚四氟乙烯（PTFE）。 疏水性覆盖材料已知是防水的，但不会影响声音信号装置的声音，从而延迟或防止可听信号装置发生水腐蚀的故障。
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公开(公告)号：US6130618A
公开(公告)日：2000-10-10
申请号：US7596
申请日：1998-01-15
申请人： George A. Burnett , Brian S. Bush
发明人： George A. Burnett , Brian S. Bush
摘要： A novel modular audible signaling device is provided capable of expanded functionality, such as the provision of visual signaling as well. A piezoelectric transducer audible alarm signaling device is provided with an assembly having a housing defining an interior holding a piezoelectric transducer, the housing having a first exterior portion for attachment to a surface and a second exterior portion extending beyond the surface, wherein the first exterior portion and the second exterior portion comprise at least one pair of communicating apertures whereby an electrical conductor may extend through the at least one pair of apertures to the surface. In another aspect, a piezoelectric transducer assembly is provided having a housing defining an interior and a surface, the housing holding a piezoelectric transducer, wherein the housing further comprises an illumination element associated the surface thereof, the illumination element having one or more conductors which extend through the interior of the housing, whereby the illumination element may be electrically inserted into the same electrical circuit as the piezoelectric transducer.
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公开(公告)号：US06310540B1
公开(公告)日：2001-10-30
申请号：US08768758
申请日：1996-12-17
IPC分类号： G08B310
CPC分类号： G08B3/10
摘要： A microcontroller is used to drive a piezoelectric transducer. Certain pins on the microcontroller are indicative of selection signals. The selector can be activated either by a user directly (e.g., by pushing buttons), by an offboard actuator (e.g., another microcontroller), or by any method known in the art for activating switches. In one embodiment, an output pin of the microcontroller acts as output for a high-low oscillator. The oscillation amplitude toggles between 0 and 5 volts in a square wave fashion. The output pin is coupled to the base of a bipolar junction transistor so that the transistor turns on and off as a switch in response to the high-low oscillations. As the transistor turns on and off, supply voltage is routed through a network of logic inverters, after first passing through a current limiting impedance means such as a resistor, to the piezoelectric transducer in a manner designed to provide a voltage swing at the transducer on the order of two times the supply voltage for each oscillation. In another embodiment, instead of using a single pin on the microcontroller to alternately forward and reverse bias a single transistor, the microcontroller actuates predetermined pins that are connected to different RC oscillators. The RC oscillators are then connected to the driving circuit. The circuit includes a voltage regulator connected at an input to the supply voltage and at an output to the power supply pin of the microcontroller.
摘要翻译： 微控制器用于驱动压电换能器。 微控制器上的某些引脚指示选择信号。 选择器可以由用户直接（例如通过按下按钮），通过非标准致动器（例如另一个微控制器）来激活，或者通过本领域已知的用于激活开关的任何方法来激活。 在一个实施例中，微控制器的输出引脚用作高低振荡器的输出。 振荡幅度以方波方式切换在0和5伏特之间。 输出引脚耦合到双极结晶体管的基极，使得晶体管作为响应于高 - 低振荡的开关导通和截止。 当晶体管导通和截止时，在首先通过诸如电阻器的限流阻抗装置之后，电源电压通过逻辑反相器网络被路由到压电换能器，以便在传感器上提供电压摆幅 每次振荡的电源电压的两倍。 在另一个实施例中，微控制器不是使用微控制器上的单个引脚来交替地对单个晶体管进行正向和反向偏置，而是驱动连接到不同RC振荡器的预定引脚。 然后将RC振荡器连接到驱动电路。 该电路包括一个电压调节器，它连接到电源电压的输入端和微控制器的电源引脚的输出端。
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公开(公告)号：US06414604B1
公开(公告)日：2002-07-02
申请号：US09678528
申请日：2000-10-03
申请人： George A. Burnett , Brian S. Bush
发明人： George A. Burnett , Brian S. Bush
IPC分类号： G08B522
摘要： A novel modular audible signaling device is provided capable of expanded functionality, such as the provision of visual signaling as well. A piezoelectric transducer audible alarm signaling device is provided with an assembly having a housing defining an interior holding a piezoelectric transducer, the housing having a first exterior portion for attachment to a surface and a second exterior portion extending beyond the surface, wherein the first exterior portion and the second exterior portion comprise at least one pair of communicating apertures whereby an electrical conductor may extend through the at least one pair of apertures to the surface. In another aspect, a piezoelectric transducer assembly is provided having a housing defining an interior and a surface, the housing holding a piezoelectric transducer, wherein the housing further comprises an illumination element associated the surface thereof, the illumination element having one or more conductors which extend through the interior of the housing, whereby the illumination element may be electrically inserted into the same electrical circuit as the piezoelectric transducer.
摘要翻译： 提供了能够扩展功能的新颖的模块化可听信号装置，例如提供视觉信令。 一种压电换能器的声音警报信号装置具有一个组件，该组件具有限定保持压电换能器的内部的壳体，该壳体具有用于连接到表面的第一外部部分和延伸超出该表面的第二外部部分，其中第一外部部分 并且第二外部部分包括至少一对连通孔，由此电导体可以延伸通过至少一对孔到达该表面。 在另一方面，提供一种压电换能器组件，其具有限定内部和表面的壳体，所述壳体保持压电换能器，其中所述壳体还包括与其表面相关联的照明元件，所述照明元件具有一个或多个延伸的导体 通过壳体的内部，由此照明元件可以电插入到与压电换能器相同的电路中。
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公开(公告)号：US5990784A
公开(公告)日：1999-11-23
申请号：US909012
申请日：1997-08-08
申请人： George A. Burnett
发明人： George A. Burnett
IPC分类号： G08B3/10
CPC分类号： G08B3/10
摘要： An alarm system circuit comprises a logic array comprising a piezoelectric transducer driven by one or more Schmitt triggers. The logic array operates at substantially resonant frequency, and the circuit provides a feedback loop to sustain the oscillations of the logic array to drive the transducer. In one preferred embodiment, the array includes an additional Schmitt trigger causing the circuit to toggle on and off, thus making a pulsating tone.
摘要翻译： 一种报警系统电路包括一个逻辑阵列，该逻辑阵列包括由一个或多个施密特触发器驱动的压电换能器。 逻辑阵列以基本共振频率工作，并且电路提供反馈回路以维持逻辑阵列的振荡以驱动换能器。 在一个优选实施例中，该阵列包括附加的施密特触发器，使得该电路能够接通和断开，从而产生脉动音。
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