Data Recovery Method and Storage Device
    3.
    发明申请

    公开(公告)号:US20170220427A1

    公开(公告)日:2017-08-03

    申请号:US15491473

    申请日:2017-04-19

    Abstract: A data recovery method includes receiving a first physical address of a data block included in a to-be-recovered file sent by a server, searching in a recovery snapshot according to the first physical address of the data block included in the to-be-recovered file, obtaining a second physical address, in a resource volume, of a modified data block in the to-be-recovered file according to a correspondence between a first physical address of the modified data block and the second physical address, in the resource volume, of the modified data block recorded in the recovery snapshot, where the recovery snapshot is a snapshot volume used to recover the to-be-recovered file, and recovering, in the source volume, the to-be-recovered file according to the second physical address, in the resource volume, of the modified data block in the to-be-recovered file.

    Method and apparatus for generating standard cancellation signalstandard cancellation signal
    4.
    发明授权
    Method and apparatus for generating standard cancellation signalstandard cancellation signal 有权
    用于产生标准消除信号标准消除信号的方法和装置

    公开(公告)号:US08854946B2

    公开(公告)日:2014-10-07

    申请号:US13652845

    申请日:2012-10-16

    Inventor: Yong Jiang Yi Wang

    CPC classification number: H04J11/0023 H04L27/2624

    Abstract: A method and an apparatus for generating a standard cancellation signal includes: setting weight values according to frequency points of a current cell and its neighboring cells; according to the frequency points of the current cell and neighboring cells and the weight values of the frequency points, performing Fourier transform to obtain a corresponding time-domain signal; and performing highest amplitude normalization on the time-domain signal and performing a cyclic shift to obtain a standard cancellation signal. The embodiments generate a standard cancellation signal according to frequency points of the current cell and its neighboring cells, so that the current cell and its neighboring cells share the peak clipping noise, and therefore helping improve the peak clipping performance of the current cell or reduce the EVM distortion.

    Abstract translation: 用于产生标准消除信号的方法和装置包括:根据当前小区及其相邻小区的频点设置权重值; 根据当前小区和相邻小区的频点和频点的权重值,进行傅里叶变换以获得对应的时域信号; 对时域信号进行最高幅度归一化,进行循环移位,得到标准消除信号。 实施例根据当前单元及其相邻单元的频点产生标准消除信号,使得当前单元及其相邻单元共享峰值限幅噪声,因此有助于提高当前单元的峰值削波性能或减小 EVM失真。

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