公开(公告)号：US20130149960A1

公开(公告)日：2013-06-13

申请号：US13315399

申请日：2011-12-09

申请人： Albert K. Dec ,  Marie Y. Alfred

发明人： Albert K. Dec ,  Marie Y. Alfred

IPC分类号： H04B5/00

CPC分类号： H04B5/0081

摘要： A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.

摘要翻译： VLF信标在天线的近场中工作，通过采用简单的幅度梯度和相位对准方向（DF）方法提供了一个低阻抗（磁）波。 当旋转时，信标天线以很小的衰减辐射其信号。 信标天线包括与距离有1 / r3 B场振幅关系的环形天线。 天线辐射范围有限，但可检测的近场信号强。 该接收机包括具有滤波的简单的2通道RF前端和A / D转换器。 每个通道的天线是一个小得多的铁素体负载回路。

公开(公告)号：US08805301B2

公开(公告)日：2014-08-12

申请号：US13315399

申请日：2011-12-09

申请人： Albert K. Dec ,  Marie Y. Alfred

发明人： Albert K. Dec ,  Marie Y. Alfred

IPC分类号： H04B1/38

CPC分类号： H04B5/0081

摘要： A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.

摘要翻译： VLF信标在天线的近场中工作，通过采用简单的幅度梯度和相位对准方向（DF）方法提供了一个低阻抗（磁）波。 当旋转时，信标天线以很小的衰减辐射其信号。 信标天线包括与距离有1 / r3 B场振幅关系的环形天线。 天线辐射范围有限，但可检测的近场信号强。 该接收机包括具有滤波的简单的2通道RF前端和A / D转换器。 每个通道的天线是一个小得多的铁素体负载回路。

公开(公告)号：US20130226021A1

公开(公告)日：2013-08-29

申请号：US13879549

申请日：2012-08-09

申请人： Albert K. Dec

发明人： Albert K. Dec

IPC分类号： A61B5/00

CPC分类号： A61B5/4875 ,  A61B5/7455 ,  A62B18/08 ,  A62B18/086

摘要： A protective ensemble hydration monitor configured to be disposed within a face mask of a protective ensemble is disclosed. In one embodiment, the protective ensemble hydration monitor includes a humidity sensor to detect the user's breath within the face mask and output a breath signal based on the detected user's breath. Further, the protective ensemble hydration monitor includes a microprocessor coupled to the humidity sensor to receive the breath signal and output a control signal based on a pre-determined humidity threshold value. Furthermore, the protective ensemble hydration monitor includes a vibrator configured to provide a tactile feedback to the user upon receiving the control signal from the microprocessor.

摘要翻译： 公开了一种被配置为设置在保护性集合体的面罩内的保护性集合水合监视器。 在一个实施例中，保护性合成水合监测器包括湿度传感器，用于检测用户在面罩内的呼吸并基于检测到的使用者的呼吸输出呼吸信号。 此外，保护性合成水合监测器包括耦合到湿度传感器的微处理器，以接收呼吸信号并基于预定的湿度阈值输出控制信号。 此外，保护性合成水合监测器包括被配置为在从微处理器接收到控制信号时向用户提供触觉反馈的振动器。