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    • 2. 发明申请
    • Frequency compensated communications reception
    • 频率补偿通信接收
    • US20070165752A1
    • 2007-07-19
    • US10589530
    • 2005-02-15
    • Edward Warner
    • Edward Warner
    • H03D1/04
    • H04L27/0014
    • Frequency compensated communications reception includes compensating for frequency offset in a received signal by constructing a reference signal for comparison with a training sequence in a received signal. The reference signal is formed from basis functions and the training sequence. It is obtained by minimising a cost function J constructed from an adaptively weighted combination of basis functions, the training sequence, the received signal and a constraint requiring non-zero signal power. Multi-element antenna signals are weighted with a beamforming weight vector w in J given by formula (I), where X is a matrix of received signal samples, C is a diagonal matrix containing elements of the training sequence, F is a matrix having columns defining basis functions, v is a vector of adaptive weights, index H indicates complex conjugate transpose and λ is a Lagrange multiplier constraining beamformer power. A single element antenna signal x is scaled in J given by formula (II), where α is a scaling factor, * indicates a complex conjugate, and x is a vector of received signal samples.
    • 频率补偿通信接收包括通过构造用于与接收信号中的训练序列进行比较的参考信号来补偿接收信号中的频率偏移。 参考信号由基函数和训练序列形成。 通过最小化从基本功能,训练序列,接收信号和要求非零信号功率的约束的自适应加权组合构建的成本函数J获得。 多元天线信号用公式(I)给出的J中的波束成形权重向量w加权,其中X是接收信号样本的矩阵,C是包含训练序列的元素的对角矩阵,F是具有列的矩阵 定义基函数,v是自适应权重的向量,索引H表示复共轭转置,λ是约束波束形成器功率的拉格朗日乘数。 单个元素天线信号x以公式(II)给出,其中α是缩放因子,*表示复共轭,x是接收信号样本的向量。
    • 3. 发明授权
    • Double action revolver apparatus and method
    • 双动左轮手枪装置及方法
    • US4141165A
    • 1979-02-27
    • US819127
    • 1977-07-26
    • Wilhelm DichterHenry J. TatroC. Edward Warner
    • Wilhelm DichterHenry J. TatroC. Edward Warner
    • F41A19/53F41C3/14F41C1/00F41C19/00
    • F41C3/14F41A19/53
    • A double action revolver has a frame on which is mounted a cylinder, a trigger and a hammer. A hammer or main spring is interposed between the trigger and hammer such that pulling the trigger causes the spring to compress and bias the hammer toward its fired position. The position of the hammer remains essentially unchanged during initial trigger pull by virtue of a toggle spring device interposed between the frame and the hammer. When the hammer spring is sufficiently compressed, a surface on the trigger contacts and engenders a deflection or buckling of the toggle spring device. Buckling of the toggle spring device permits the hammer spring to drive the hammer to the fired position in which a cartridge is fired.A spring loaded cylinder stop, having a projection adapted to be received in a locking recess on the cylinder, is adapted to be displaced forwardly, against the bias of its spring load during initial trigger return from the pulled position to its normal or released position. Each locking recess is constituted by a primary locking notch and secondary locking notch. The primary and secondary notches are so arranged that forward movement of the cylinder stop causes it to leave the primary notch and enter the secondary notch. This permits the cylinder to be rotated a few degrees under the impetus of a cylinder spring. Further trigger return permits the cylinder stop to move rearwardly out of the secondary notch and over the surface of the cylinder. When the cylinder stop clears the secondary notch, the cylinder automatically rotates to the next index position where the cylinder stop enters the succeeding primary locking notch and terminates cylinder rotation.
    • 双动左轮手枪有一个框架,其上安装有气缸,扳机和锤子。 锤子或主弹簧插在触发器和锤子之间,使得拉动扳机使弹簧压缩并将锤子偏压到其击发位置。 由于插入在框架和锤之间的肘节弹簧装置,锤在初始触发拉力期间的位置基本上保持不变。 当锤弹簧被充分压缩时,触发器上的表面接触并引起肘节弹簧装置的偏转或弯曲。 肘节弹簧装置的弯曲允许锤弹簧将锤驱动到其中筒被点燃的发射位置。
    • 9. 发明授权
    • Power spectrum shaping to reduce interference effects in devices sharing a communication medium
    • 功率谱整形,以减少共享通信介质的设备的干扰效应
    • US07154957B1
    • 2006-12-26
    • US10386094
    • 2003-03-10
    • Anton MonkEdward WarnerItzhak GurantzLadd ElwardaniRon Porat
    • Anton MonkEdward WarnerItzhak GurantzLadd ElwardaniRon Porat
    • H04L5/12H04L23/02
    • H04L27/2614H04L27/2608H04L27/2626H04L2025/03414
    • A broadband digital communication network transmits a signal with a shaped power spectrum to minimize interference with devices that share the communication medium. In one embodiment using coaxial wiring, devices such as cable converters and televisions that are not part of the network share the communication medium and are exposed to the network signal. Power levels across the network band are selected to reduce interference in the non-networked devices. One area of susceptibility is the tuner of cable channel receivers, which perform mixing and down conversion of RF signals. The power spectrum profile is selected to minimize the IF and base band interference after down conversion. The spectrum can be shaped within each 6 MHz band to further minimize the interference with a TV signal. The power levels can be optimized for both peak power limitation and quantization effects.
    • 宽带数字通信网络发送具有成形功率频谱的信号以最小化与共享通信介质的设备的干扰。 在使用同轴布线的一个实施例中,不是网络一部分的诸如电缆转换器和电视机的设备共享通信介质并暴露于网络信号。 选择跨网络的功率级别以减少非联网设备中的干扰。 一个敏感区域是有线信道接收机的调谐器,它们执行RF信号的混合和下变频。 选择功率谱分布,以最小化下变频后的中频和基带干扰。 频谱可以在每个6 MHz频带内成形,以进一步最小化对电视信号的干扰。 功率电平可以针对峰值功率限制和量化效应进行优化。