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    Sharp noise suppression
    2.
    发明授权
    Sharp noise suppression 有权

    公开(公告)号：US09940946B2

    公开(公告)日：2018-04-10

    申请号：US15252068

    申请日：2016-08-30

    申请人： Marvell World Trade Ltd.

    发明人： Jin Xie ,  Sungyub Daniel Yoo ,  Kapil Jain

    IPC分类号： G10L21/0208 ,  G10L25/78 ,  G10L21/034 ,  G10L21/0232

    CPC分类号： G10L21/034 ,  G10L21/0208 ,  G10L21/0232 ,  G10L25/78

    摘要： A method includes determining a first filtered signal based on an audio signal; determining a second filtered signal based on the audio signal; determining, based on the first filtered signal and the second filtered signal, a portion of the audio signal corresponding to a sharp noise; determining, based on the first filtered signal and the second filtered signal, a gain signal that, for the portion of the audio signal corresponding to the sharp noise, has a value that is smaller than a value of the gain signal for the remaining portion of the audio signal; and suppressing, based on the gain signal, the sharp noise from an amplifier input signal determined based on the audio signal.

    Sharp Noise Suppression
    5.
    发明申请
    Sharp Noise Suppression 有权

    公开(公告)号：US20170084291A1

    公开(公告)日：2017-03-23

    申请号：US15252068

    申请日：2016-08-30

    申请人： Marvell World Trade Ltd.

    发明人： Jin Xie ,  Sungyub Daniel Yoo ,  Kapil Jain

    IPC分类号： G10L21/034 ,  G10L21/0232

    CPC分类号： G10L21/034 ,  G10L21/0208 ,  G10L21/0232 ,  G10L25/78

    摘要： A method includes determining a first filtered signal based on an audio signal; determining a second filtered signal based on the audio signal; determining, based on the first filtered signal and the second filtered signal, a portion of the audio signal corresponding to a sharp noise; determining, based on the first filtered signal and the second filtered signal, a gain signal that, for the portion of the audio signal corresponding to the sharp noise, has a value that is smaller than a value of the gain signal for the remaining portion of the audio signal; and suppressing, based on the gain signal, the sharp noise from an amplifier input signal determined based on the audio signal.

    METHOD AND APPARATUS FOR ELIMINATING MUSIC NOISE VIA A NONLINEAR ATTENUATION/GAIN FUNCTION
    6.
    发明申请
    METHOD AND APPARATUS FOR ELIMINATING MUSIC NOISE VIA A NONLINEAR ATTENUATION/GAIN FUNCTION 有权
    通过非线性衰减/增益函数消除音乐噪声的方法和装置

    公开(公告)号：US20160064010A1

    公开(公告)日：2016-03-03

    申请号：US14829052

    申请日：2015-08-18

    申请人： Marvell World Trade Ltd.

    发明人： Jin Xie ,  Kapil Jain

    IPC分类号： G10L21/0264 ,  G10L21/0316 ,  G10L25/21

    CPC分类号： G10L21/0264 ,  G10L19/0204 ,  G10L21/0232 ,  G10L21/0316 ,  G10L25/21 ,  G10L2021/02085 ,  G10L2021/02163

    摘要： A system including first and second gain modules, an operator module, and a priori and posteriori modules. The first gain module applies a non-linear function to generate a gain signal based on an amplitude of a first speech signal and an estimated a priori variance of noise included in the first speech signal. The operator module generates an operator based on the gain signal and the estimated a priori variance of noise. The a priori module determines an a priori signal-to-noise ratio based on the operator. The posteriori module determines a posteriori signal-to-noise ratio based on the amplitude of the first speech signal and (ii) the estimated a priori variance of noise. The second gain module: determines a gain value based on the a priori signal-to-noise ratio and the a posteriori signal-to-noise ratio; and generates, based on the amplitude of the first speech signal and the gain value, a second speech signal that corresponds to an estimate of an amplitude of the first speech signal, where the second speech signal is substantially void of music noise.

    摘要翻译： 包括第一增益模块和第二增益模块的系统，操作模块和先验和后验模块。 第一增益模块应用非线性函数，以基于第一语音信号的幅度和包括在第一语音信号中的估计的噪声的先验方差来产生增益信号。 操作员模块基于增益信号和估计的噪声的先验方差来生成操作者。 先验模块基于操作者确定先验信噪比。 后验模块基于第一语音信号的幅度确定后验信噪比，以及（ii）所估计的先验噪声方差。 第二增益模块：基于先验信噪比和后验信噪比来确定增益值; 并且基于第一语音信号和增益值的幅度生成对应于第一语音信号的幅度的估计的第二语音信号，其中第二语音信号基本上没有音乐噪声。

    Method and apparatus for decoding and correcting a first byte based on a status of a second byte adjacent to the first byte and in response to a failure to decode the first byte
    7.
    发明授权
    Method and apparatus for decoding and correcting a first byte based on a status of a second byte adjacent to the first byte and in response to a failure to decode the first byte 有权
    用于基于与第一字节相邻的第二字节的状态来解码和校正第一字节的方法和装置，并且响应于对第一字节的解码失败

    公开(公告)号：US09165601B2

    公开(公告)日：2015-10-20

    申请号：US14202055

    申请日：2014-03-10

    申请人： Marvell World Trade LTD.

    发明人： Mats Oberg ,  Jin Xie

    IPC分类号： H03M13/00 ,  G11B20/18 ,  H03M13/29

    CPC分类号： G11B20/1833 ,  G11B20/1866 ,  G11B2020/1846 ,  H03M13/2954

    摘要： A decoder including a decode module, a matrix module, and a marking module. The decode module receives data and performs a first decoding iteration to decode the data. The first decoding iteration includes generating a first matrix having a first byte. The matrix module generates a second matrix based on the first matrix. The second matrix includes the first and second bytes. The second byte is adjacent and sequentially prior or subsequent to the first byte. The marking module: determines whether the first byte has been correctly decoded; based on determining whether the first byte has been correctly decoded, determines a status of the second byte; and based on the status of the second byte, marks the first byte as an erasure. The decode module, based on the second byte being marked as an erasure, corrects the second byte during the second decoding iteration.

    摘要翻译： 解码器，包括解码模块，矩阵模块和标记模块。 解码模块接收数据并执行第一解码迭代来解码数据。 第一解码迭代包括生成具有第一字节的第一矩阵。 矩阵模块基于第一矩阵生成第二矩阵。 第二矩阵包括第一和第二字节。 第二个字节在第一个字节之前或之后是相邻的。 标记模块：确定第一个字节是否已正确解码; 基于确定所述第一字节是否被正确解码，确定所述第二字节的状态; 并且基于第二字节的状态，将第一个字节标记为擦除。 解码模块基于第二字节被标记为擦除，在第二解码迭代期间校正第二字节。

    Method and apparatus for offset and gain correction
    8.
    发明授权
    Method and apparatus for offset and gain correction 有权
    用于偏移和增益校正的方法和装置

    公开(公告)号：US09001631B2

    公开(公告)日：2015-04-07

    申请号：US14153765

    申请日：2014-01-13

    申请人： Marvell World Trade Ltd.

    发明人： Jin Xie ,  Bin Ni ,  Mats Oberg

    IPC分类号： G11B15/52 ,  G11B20/10 ,  G11B20/18

    CPC分类号： G11B20/10222 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10203 ,  G11B20/10314 ,  G11B20/10351 ,  G11B20/10509 ,  G11B20/18 ,  G11B2020/1062 ,  G11B2220/2537

    摘要： Aspects of the disclosure provide a signal processing circuit that has fast response time to sudden profile changes in an electrical signal. The signal processing circuit includes a processing path configured to process an electrical signal that is generated in response to reading data on a storage medium, and a feed-forward correction module. The feed-forward correction module is configured to detect a profile variation based the electrical signal in a time window, and correct the electrical signal in the time window based on the detected profile variation.

    摘要翻译： 本公开的方面提供了一种信号处理电路，其对电信号中的突然轮廓变化具有快速响应时间。 信号处理电路包括处理路径，其被配置为处理响应于在存储介质上读取数据而产生的电信号和前馈校正模块。 前馈校正模块被配置为基于时间窗中的电信号检测轮廓变化，并且基于检测到的轮廓变化来校正时间窗中的电信号。

    Method and apparatus for reading a disc
    9.
    发明授权
    Method and apparatus for reading a disc 有权

    公开(公告)号：US08954819B2

    公开(公告)日：2015-02-10

    申请号：US13722007

    申请日：2012-12-20

    申请人： Marvell World Trade Ltd.

    发明人： Mats Oberg ,  Jin Xie

    IPC分类号： H03M13/00 ,  G11C29/00 ,  H03M13/05 ,  G11B20/18

    CPC分类号： H03M13/29 ,  G06F11/1076 ,  G11B20/1813 ,  G11B20/1833 ,  H03M13/05

    摘要： Aspects of the disclosure provide a circuit that includes a decoder, an error checking module, and a controller. The decoder is configured to receive codewords, and decode the codewords based on an error correcting code. The error checking module is configured to error-check sectors using an error detecting code in the sectors. Each sector is formed of a plurality of decoded codewords. The controller is configured to store in a memory, when the error checking fails for at least one sector, the decoded codewords and corresponding flags indicative of pass or fail of the decoding of the codewords.