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    • 4. 发明申请
    • STANDOFF RANGE SENSE THROUGH OBSTRUCTION RADAR SYSTEM
    • 通过障碍雷达系统进行距离感应
    • WO2011056730A3
    • 2011-08-04
    • PCT/US2010054775
    • 2010-10-29
    • VAWD APPLIED SCIENCE & TECHNOLOGY CORPADAMS VINH NADAMS ROBERTDWELLY WESLEY H
    • ADAMS VINH NADAMS ROBERTDWELLY WESLEY H
    • G01S7/03G01S13/53H01Q13/02
    • G01S7/04G01S13/522G01S13/582G01S13/865G01S13/867G01S13/888H01Q1/125H01Q19/132
    • A standoff range, sense-through-obstruction radar system is capable of detecting micro-Doppler, or life form signatures, and movements through obstructions at stand-off ranges and displaying the target information over a live video feed of the area under surveillance. The sense-through-obstruction radar system comprises an antenna assembly that includes a horn antenna and a reflector configured to reflect radio frequency (RF) energy to/from the horn antenna. An antenna pointing assembly supports the antenna assembly. The antenna pointing assembly is configured to move the antenna assembly to point the antenna assembly toward an obstruction. A sensor assembly is mounted to the antenna assembly so that the sensor assembly is aligned with the RF beam formed from the RF energy reflected from the reflector to the horn antenna. The sensor assembly is configured to detect the location of the obstruction and to provide information to assist pointing of the antenna assembly toward the obstruction.
    • 通过障碍物范围,通过障碍物的雷达系统能够检测微多普勒,生命体征特征以及通过障碍物范围内的障碍物移动,并通过受监视区域的实况视频馈源显示目标信息。 该通过障碍物雷达系统包括天线组件,该天线组件包括喇叭天线和被配置为将射频(RF)能量反射至喇叭天线或从喇叭天线反射的反射器。 天线指向组件支持天线组件。 天线指向组件被配置为移动天线组件以将天线组件指向障碍物。 将传感器组件安装到天线组件,使得传感器组件与由从反射器反射到喇叭天线的RF能量形成的RF射束对齐。 传感器组件被配置为检测障碍物的位置并且提供信息以辅助天线组件朝向障碍物的指向。
    • 5. 发明申请
    • WIDE DYNAMIC RANGE MICROPHONE
    • 宽动态范围麦克风
    • WO2009143434A3
    • 2010-05-27
    • PCT/US2009044997
    • 2009-05-22
    • ANALOG DEVICES INCHAILA OLLIHARNEY KIERANELKO GARY WADAMS ROBERT
    • HAILA OLLIHARNEY KIERANELKO GARY WADAMS ROBERT
    • H04R3/00
    • H04R17/02H04R1/406H04R3/005H04R19/005H04R2430/00H04R2499/11
    • A microphone system has an output and at least a first transducer with a first dynamic range, a second transducer with a second dynamic range different than the first dynamic range, and coupling system to selectively couple the output of one of the first transducer or the second transducer to the system output, depending on the magnitude of the input sound signal, to produce a system with a dynamic range greater than the dynamic range of either individual transducer. A method of operating a microphone system includes detecting whether a transducer output crosses a threshold, and if so then selectively coupling another transducer's output to the system output. The threshold may change as a function of which transducer is coupled to the system output. The system and methods may also combine the outputs of more than one transducer in a weighted sum during transition from one transducer output to another, as a function of time or as a function of the amplitude of the incident audio signal. Methods of operating the system may include equalizing the outputs of two or more transducers prior to coupling one or more outputs to the system output.
    • 麦克风系统具有输出和至少具有第一动态范围的第一换能器,具有与第一动态范围不同的第二动态范围的第二换能器,以及耦合系统以选择性地将第一换能器或第二换能器 换能器到系统输出,取决于输入声音信号的大小,以产生动态范围大于任一单个换能器的动态范围的系统。 操作麦克风系统的方法包括检测换能器输出是否超过阈值,如果是,则选择性地将另一换能器的输出耦合到系统输出。 该阈值可以随着传感器耦合到系统输出而变化。 系统和方法还可以根据时间的函数或作为入射音频信号的幅度的函数,将来自一个换能器输出到另一个换能器输出的转换期间的加权和中的多于一个换能器的输出组合。 操作系统的方法可以包括在将一个或多个输出耦合到系统输出之前均衡两个或更多个换能器的输出。