公开(公告)号：US20120288109A1

公开(公告)日：2012-11-15

申请号：US13561784

申请日：2012-07-30

申请人： Deming ZHANG ,  Jinliang DAI

发明人： Deming ZHANG ,  Jinliang DAI

IPC分类号： H03G3/00

CPC分类号： G10L19/012

摘要： The disclosure provides a method for noise generation, including: determining an initial value of a reconstructed parameter; determining a random value range based on the initial value of the reconstructed parameter; taking a value in the random value range randomly as a reconstructed noise parameter; and generating noise by using the reconstructed noise parameter. The disclosure also provides an apparatus for noise generation.

摘要翻译： 本公开提供了一种用于噪声产生的方法，包括：确定重构参数的初始值; 基于重构参数的初始值确定随机值范围; 以随机值范围随机取值作为重构噪声参数; 并通过使用重构的噪声参数产生噪声。 本公开还提供了用于产生噪声的装置。

公开(公告)号：US20110185001A1

公开(公告)日：2011-07-28

申请号：US13086183

申请日：2011-04-13

申请人： Deming ZHANG ,  Haiting Li

发明人： Deming ZHANG ,  Haiting Li

IPC分类号： G06F17/14

CPC分类号： H04L12/66 ,  G06F17/144 ,  G06F17/147 ,  G10L19/0212

摘要： The present invention discloses a signal processing method and a data processing method and apparatus. A time-domain to frequency-domain signal processing method includes: pre-processing time-domain data; pre-rotating the pre-processed data by using a rotation factor a·WNn+0.5; performing a discrete Fourier transform (DFT) of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor b·WNn+0.5 to obtain frequency-domain data. A frequency-domain to time-domain signal processing method includes: twiddling frequency-domain data; pre-rotating the twiddled data by using a rotation factor c·WNn+0.5; performing a DFT of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor d·WNn+0.5; and post-processing the post-rotated data to obtain time-domain data. The present invention increases the efficiency of signal processing.

摘要翻译： 本发明公开了一种信号处理方法和数据处理方法及装置。 时域到频域信号处理方法包括：预处理时域数据; 使用旋转因子a·WNn + 0.5预旋转预处理数据; 在预旋转数据上执行N / 4点的离散付里叶变换（DFT）; 并且通过使用旋转因子b·WNn + 0.5对由DFT变换的数据进行后旋转以获得频域数据。 频域到时域信号处理方法包括：加倍频域数据; 通过使用旋转因子c·WNn + 0.5来预旋转数据; 对预先旋转的数据执行N / 4点的DFT; 并且通过使用旋转因子d·WNn + 0.5来后转换由DFT变换的数据; 并且后处理后旋转数据以获得时域数据。 本发明提高了信号处理的效率。

公开(公告)号：US20120095580A1

公开(公告)日：2012-04-19

申请号：US13335300

申请日：2011-12-22

申请人： Deming ZHANG

发明人： Deming ZHANG

IPC分类号： G06F17/00

CPC分类号： G10L21/02 ,  H04L25/03828

摘要： A method and a device for clipping control are provided in the present invention. The method includes: updating a clipping factor according to a maximum absolute value FrameLev in a current frame signal; obtaining a clipping restoration filter according to the clipping factor; filtering the current frame signal according to the clipping restoration filter to obtain a filtered clipping restoration signal. With the method and device for clipping control provided in the present invention, whether a clipping phenomenon occurs may be automatically detected, and clipping restoration is performed, so that subjective quality of an output signal is improved.

摘要翻译： 在本发明中提供了一种用于削波控制的方法和装置。 该方法包括：根据当前帧信号中的最大绝对值FrameLev更新削波因子; 根据削波因子获得剪切恢复滤波器; 根据削波恢复滤波器对当前帧信号进行滤波，以获得滤波的限幅恢复信号。 利用本发明提供的用于剪辑控制的方法和装置，可以自动检测是否发生限幅现象，并且执行剪辑恢复，从而提高输出信号的主观质量。

公开(公告)号：US20110090993A1

公开(公告)日：2011-04-21

申请号：US12980001

申请日：2010-12-28

申请人： Deming ZHANG ,  Haiting Li

发明人： Deming ZHANG ,  Haiting Li

IPC分类号： H04L27/06

CPC分类号： H04L12/66 ,  G06F17/144 ,  G06F17/147 ,  G10L19/0212

摘要： The present invention discloses a signal processing method and a data processing method and apparatus. A time-domain to frequency-domain signal processing method includes: pre-processing time-domain data; pre-rotating the pre-processed data by using a rotation factor a·WNn+0.5; performing a discrete Fourier transform (DFT) of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor b·WNk+0.5 to obtain frequency-domain data. A frequency-domain to time-domain signal processing method includes: twiddling frequency-domain data; pre-rotating the twiddled data by using a rotation factor c·WNk+0.5; performing a DFT of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor d·WNn+0.5; and post-processing the post-rotated data to obtain time-domain data. The present invention increases the efficiency of signal processing.

摘要翻译： 本发明公开了一种信号处理方法和数据处理方法及装置。 时域到频域信号处理方法包括：预处理时域数据; 使用旋转因子a·WNn + 0.5预旋转预处理数据; 在预旋转数据上执行N / 4点的离散付里叶变换（DFT）; 并且通过使用旋转因子b·WNk + 0.5对由DFT变换的数据进行后旋转以获得频域数据。 频域到时域信号处理方法包括：加倍频域数据; 通过使用旋转因子c·WNk + 0.5预旋转分组数据; 对预先旋转的数据执行N / 4点的DFT; 并且通过使用旋转因子d·WNn + 0.5来后转换由DFT变换的数据; 并且后处理后旋转数据以获得时域数据。 本发明提高了信号处理的效率。