-
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。
-
公开(公告)号：US08674817B1
公开(公告)日：2014-03-18
申请号：US13356029
申请日：2012-01-23
IPC分类号： G08B3/10
摘要： In further development of U.S. Pat. No. 6,310,540 B1, an audible signal device including a microprocessor or microcontroller and a sounder element, or a microprocessor or microcontroller in conjunction with electronic circuitry such as discrete components, inductors, or IC's with a sounder element where the resulting sound pressure level is controlled by changing the drive signal's frequency, size, shape, and/or duty cycle.
摘要翻译： 在美国专利的进一步发展 6,310,540B1号声音信号装置，包括微处理器或微控制器和发声器元件，或微处理器或微控制器与诸如分立元件，电感器或IC之类的电子电路结合，其中产生的声压级被控制在其中 通过改变驱动信号的频率，大小，形状和/或占空比。
-
公开(公告)号：US20100102940A1
公开(公告)日：2010-04-29
申请号：US12288846
申请日：2008-10-23
IPC分类号： G08B3/10
摘要： In further development of U.S. Pat. No. 6,310,540 B1, an audible signal device comprising of a microprocessor or microcontroller and a sounder element, or a microprocessor or microcontroller in conjunction with electronic circuitry such as discrete components, inductors, or IC's with a sounder element where the resulting sound pressure level is controlled by changing the drive signal's frequency, size, shape, and/or duty cycle.
摘要翻译： 在美国专利的进一步发展 6,310,540B1号声音信号装置，包括微处理器或微控制器和发声器元件，或微处理器或微控制器，其结合电子电路，例如具有发声元件的分立元件，电感器或IC，其中产生的声压级为 通过改变驱动信号的频率，大小，形状和/或占空比来控制。
-
公开(公告)号：US09576442B1
公开(公告)日：2017-02-21
申请号：US14215469
申请日：2014-03-17
摘要： In further development of U.S. Pat. No. 6,310,540 B1, an audible signal device comprising of a microprocessor or microcontroller and a sounder element, or a microprocessor or microcontroller in conjunction with electronic circuitry such as discrete components, inductors, or IC's with a sounder element where the resulting sound pressure level is controlled by changing the drive signal's frequency, size, shape, and/or duty cycle.
摘要翻译： 在美国专利的进一步发展 6,310,540B1号声音信号装置，包括微处理器或微控制器和发声器元件，或微处理器或微控制器，其结合电子电路，例如具有发声元件的分立元件，电感器或IC，其中产生的声压级为 通过改变驱动信号的频率，大小，形状和/或占空比来控制。
-
-
-
搜索结果
4 条记录 (耗时 0.019 秒)
