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    • 6. 发明授权
    • Direct RF complex analog to digital converter
    • 直接RF复合模数转换器
    • US07692570B2
    • 2010-04-06
    • US12014846
    • 2008-01-16
    • Paul T. MartellockByron W. TietjenMichael J. WalshLindsay C. Peterson
    • Paul T. MartellockByron W. TietjenMichael J. WalshLindsay C. Peterson
    • H03M1/12
    • H03M1/1215
    • An analog to digital converter device including: an input to receive a radio frequency (RF) signal; a plurality of delay elements coupled in series to the input, wherein each element has an output configured to provide the RF signal with a temporal delay corresponding to a different number of the delay elements; a sample rate reduction system having a plurality of inputs each being coupled to a corresponding one of the delay element outputs, and configured to sample the delayed RF signals and provide M-sample outputs, each of the M-sample outputs being sampled at a reduced sampling rate equal to the sampling rate divided by M, M being an integer sample rate reduction value; and an Nth order complex bandpass filter coupled to the sample rate reduction system, the complex bandpass filter being configured to filter each of the M-sample outputs to obtain a plurality of complex baseband signals.
    • 一种模数转换器装置,包括:用于接收射频(RF)信号的输入端; 多个延迟元件串联耦合到输入,其中每个元件具有被配置为向RF信号提供对应于不同数量的延迟元件的时间延迟的输出; 具有多个输入的采样率降低系统,每个输入各自耦合到所述延迟元件输出中的对应的一个,并且被配置为对延迟的RF信号进行采样并提供M个采样输出,每个M采样输出以缩减的 采样率等于采样率除以M,M为整数采样率降低值; 以及耦合到所述采样率降低系统的N阶复带通滤波器,所述复带通滤波器被配置为对所述M个采样输出中的每一个进行滤波以获得多个复基带信号。
    • 10. 发明授权
    • Anti-theft device for framed door
    • 框架门防盗装置
    • US5845433A
    • 1998-12-08
    • US783120
    • 1997-01-14
    • Michael J. Walsh
    • Michael J. Walsh
    • E05D11/00E06B5/11
    • E06B5/113E05D11/0027E05Y2900/132
    • A device for preventing unauthorized prying of a door outward or forcing it inward from the plane of the door wherein the door is pivotally mounted on hinges in a door frame, the door and door frame each having interior surfaces, including a first member, including a base, for mounting to the interior surface of the door frame and having formed thereon a protrusion facing outward from the base toward the door, and a second member for mounting to the interior surface of the door, the second member, defined by a base, for attachment to the interior surface, and a body extending upward and away from the base having formed therein a recess facing outward toward the protrusion and arranged to pivot with the door away from and toward the protrusion as the door is opened and closed, wherein the first and second members are arranged for pivotal movement away from each other when the door is opened and into interlocking association when the door is closed in the frame to resist attempts to pry the door outward from the frame.
    • 一种用于防止门的未经授权的撬动或者从门的平面向内推动门的装置,其中门可枢转地安装在门框中的铰链上,门和门框架各自具有内表面,包括第一构件,包括第一构件 底座,用于安装到门框的内表面并且在其上形成有从基部朝向门的向外的突起,以及用于安装到门的内表面的第二构件,由基座限定的第二构件, 用于附接到内表面,以及从基部向上延伸并远离基部的主体,其中形成有向着朝向突出部朝外的凹部,并且当门被打开和关闭时被布置成与门一起枢转并且朝向突起,其中, 当门打开时,第一和第二构件布置成彼此远离的枢转运动,并且当门在框架中关闭以抵抗尝试撬动时的互锁关联 门从框架外面。