公开(公告)号：US08380526B2

公开(公告)日：2013-02-19

申请号：US13111834

申请日：2011-05-19

申请人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

发明人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

IPC分类号： G10L19/00 ,  G10L19/12

CPC分类号： G10L21/00 ,  G10L19/24

摘要： A method, device and system for signal encoding and decoding are disclosed. The method includes: encoding a core layer signal to obtain a core layer signal code; selecting an enhancement sample point that requires enhancement layer signal encoding according to the core layer signal code and the number of bits that can be used by an enhancement layer; obtaining an enhancement layer signal code of the enhancement sample point; and outputting a bit stream, where the bit stream includes the core layer signal code and the enhancement layer signal code. In embodiments of the present invention, according to the number of bits that can be used by the enhancement layer, the enhancement sample point that requires enhancement layer signal encoding is selected; the enhancement layer signal of the selected enhancement sample point is encoded and decoded; when no sufficient bits are available for the enhancement layer, the enhancement quality of the core layer can be improved.

摘要翻译： 公开了用于信号编码和解码的方法，装置和系统。 该方法包括：编码核心层信号以获得核心层信号码; 选择需要根据核心层信号码的增强层信号编码和增强层可以使用的位数的增强采样点; 获得增强采样点的增强层信号码; 并输出比特流，其中比特流包括核心层信号码和增强层信号码。 在本发明的实施例中，根据增强层可以使用的比特数，选择需要增强层信号编码的增强采样点; 所选择的增强采样点的增强层信号被编码和解码; 当没有足够的比特可用于增强层时，可以提高核心层的增强质量。

公开(公告)号：US08140343B2

公开(公告)日：2012-03-20

申请号：US13210127

申请日：2011-08-15

申请人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

发明人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

IPC分类号： G10L19/00 ,  G10L21/04

CPC分类号： G10L21/00 ,  G10L19/24

摘要： A method, device and system for signal encoding and decoding, the method comprising: encoding a core layer signal to obtain a core layer signal code; selecting an enhancement sample point that requires enhancement layer signal encoding according to the core layer signal code and the number of bits that can be used by an enhancement layer; obtaining an enhancement layer signal code of the enhancement sample point; and outputting a bit stream, where the bit stream includes the core layer signal code and the enhancement layer signal code. In embodiments of the present invention, according to the number of bits that can be used by the enhancement layer, the enhancement sample point that requires enhancement layer signal encoding is selected; the enhancement layer signal of the selected enhancement sample point is encoded and decoded; when no sufficient bits are available for the enhancement layer, the enhancement quality of the core layer can be improved.

摘要翻译： 一种用于信号编码和解码的方法，装置和系统，所述方法包括：对核心层信号进行编码以获得核心层信号码; 选择需要根据核心层信号码的增强层信号编码和增强层可以使用的位数的增强采样点; 获得增强采样点的增强层信号码; 并输出比特流，其中比特流包括核心层信号码和增强层信号码。 在本发明的实施例中，根据增强层可以使用的比特数，选择需要增强层信号编码的增强采样点; 所选择的增强采样点的增强层信号被编码和解码; 当没有足够的比特可用于增强层时，可以提高核心层的增强质量。

公开(公告)号：US20110286549A1

公开(公告)日：2011-11-24

申请号：US13210127

申请日：2011-08-15

申请人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

发明人： Chen Hu ,  Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Qing Zhang ,  Wei Xiao ,  Herve Marcel Taddei

IPC分类号： H04L27/00

CPC分类号： G10L21/00 ,  G10L19/24

摘要： A method, device and system for signal encoding and decoding, the method comprising: encoding a core layer signal to obtain a core layer signal code; selecting an enhancement sample point that requires enhancement layer signal encoding according to the core layer signal code and the number of bits that can be used by an enhancement layer; obtaining an enhancement layer signal code of the enhancement sample point; and outputting a bit stream, where the bit stream includes the core layer signal code and the enhancement layer signal code. In embodiments of the present invention, according to the number of bits that can be used by the enhancement layer, the enhancement sample point that requires enhancement layer signal encoding is selected; the enhancement layer signal of the selected enhancement sample point is encoded and decoded; when no sufficient bits are available for the enhancement layer, the enhancement quality of the core layer can be improved.

摘要翻译： 一种用于信号编码和解码的方法，装置和系统，所述方法包括：对核心层信号进行编码以获得核心层信号码; 选择需要根据核心层信号码的增强层信号编码和增强层可以使用的位数的增强采样点; 获得增强采样点的增强层信号码; 并输出比特流，其中比特流包括核心层信号码和增强层信号码。 在本发明的实施例中，根据增强层可以使用的比特数，选择需要增强层信号编码的增强采样点; 所选择的增强采样点的增强层信号被编码和解码; 当没有足够的比特可用于增强层时，可以提高核心层的增强质量。

公开(公告)号：US08063809B2

公开(公告)日：2011-11-22

申请号：US13172652

申请日：2011-06-29

申请人： Zexin Liu ,  Longyin Chen ,  Lei Miao ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

发明人： Zexin Liu ,  Longyin Chen ,  Lei Miao ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

IPC分类号： H03M1/12

CPC分类号： G10L19/025

摘要： A transient signal encoding method and device, decoding method and device, and processing system, where the transient signal encoding method includes: obtaining a reference sub-frame where a maximal time envelope having a maximal amplitude value is located from time envelopes of all sub-frames of an input transient signal; adjusting an amplitude value of the time envelope of each sub-frame before the reference sub-frame in such a way that a first difference is greater than a preset first threshold, in which the first difference is a difference between the amplitude value of the time envelope of each sub-frame before the reference sub-frame and the amplitude value of the maximal time envelope; and writing the adjusted time envelope into bitstream.

摘要翻译： 一种瞬态信号编码方法和装置，解码方法和装置以及处理系统，其中瞬态信号编码方法包括：获得参考子帧，其中具有最大振幅值的最大时间包络位于所有子帧的时间包络上， 输入瞬态信号的帧; 在所述参考子帧之前调整每个子帧的时间包络的幅度值，使得所述第一差值大于预设的第一阈值，其中所述第一差值是所述时间的振幅值 参考子帧之前的每个子帧的包络和最大时间包络的振幅值; 并将经调整的时间包络写入比特流。

公开(公告)号：US08135593B2

公开(公告)日：2012-03-13

申请号：US13100091

申请日：2011-05-03

申请人： Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

发明人： Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

IPC分类号： G10L19/14 ,  G10L11/04 ,  G10L19/00 ,  G10L21/04

CPC分类号： G10L19/002 ,  G10L19/025 ,  G10L21/038 ,  G10L25/93

摘要： Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal includes performing a classification decision process on high frequency signals of input signals, adaptively encoding the high frequency signals according to the result of the classification decision process, and outputting a bitstream including codes of low frequency signals of the input signals, adaptive codes of the high frequency signals, and the result of the classification decision process. The classification decision process is performed on the high frequency signals, and adaptive encoding or adaptive decoding is performed according to the result of the classification decision process, so the quality of voice and audio output signals is improved.

摘要翻译： 提供了用于编码信号和解码信号的方法和装置以及用于编码和解码的系统。 编码信号的方法包括对输入信号的高频信号进行分类决定处理，根据分类决定处理的结果对高频信号进行自适应编码，并输出包含输入信号的低频信号码的比特流 ，高频信号的自适应码，以及分类决策过程的结果。 对高频信号进行分类判定处理，根据分类判定处理的结果进行自适应编码或自适应解码，提高了语音输出信号的质量。

公开(公告)号：US20110251846A1

公开(公告)日：2011-10-13

申请号：US13172652

申请日：2011-06-29

申请人： Zexin Liu ,  Longyin Chen ,  Lei Miao ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

发明人： Zexin Liu ,  Longyin Chen ,  Lei Miao ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

IPC分类号： G10L19/00

CPC分类号： G10L19/025

摘要： A transient signal encoding method and device, decoding method and device, and processing system, where the transient signal encoding method includes: obtaining a reference sub-frame where a maximal time envelope having a maximal amplitude value is located from time envelopes of all sub-frames of an input transient signal; adjusting an amplitude value of the time envelope of each sub-frame before the reference sub-frame in such a way that a first difference is greater than a preset first threshold, in which the first difference is a difference between the amplitude value of the time envelope of each sub-frame before the reference sub-frame and the amplitude value of the maximal time envelope; and writing the adjusted time envelope into bitstream.

摘要翻译： 一种瞬态信号编码方法和装置，解码方法和装置以及处理系统，其中瞬态信号编码方法包括：获得参考子帧，其中具有最大振幅值的最大时间包络位于所有子帧的时间包络上， 输入瞬态信号的帧; 在所述参考子帧之前调整每个子帧的时间包络的幅度值，使得所述第一差值大于预设的第一阈值，其中所述第一差值是所述时间的振幅值 参考子帧之前的每个子帧的包络和最大时间包络的振幅值; 并将经调整的时间包络写入比特流。

公开(公告)号：US20110194598A1

公开(公告)日：2011-08-11

申请号：US13100091

申请日：2011-05-03

申请人： Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

发明人： Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Chen Hu ,  Wei Xiao ,  Herve Marcel Taddei ,  Qing Zhang

IPC分类号： H04B1/66

CPC分类号： G10L19/002 ,  G10L19/025 ,  G10L21/038 ,  G10L25/93

摘要： Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal includes performing a classification decision process on high frequency signals of input signals, adaptively encoding the high frequency signals according to the result of the classification decision process, and outputting a bitstream including codes of low frequency signals of the input signals, adaptive codes of the high frequency signals, and the result of the classification decision process. The classification decision process is performed on the high frequency signals, and adaptive encoding or adaptive decoding is performed according to the result of the classification decision process, so the quality of voice and audio output signals is improved.

摘要翻译： 提供了用于编码信号和解码信号的方法和装置以及用于编码和解码的系统。 编码信号的方法包括对输入信号的高频信号进行分类决定处理，根据分类决定处理的结果对高频信号进行自适应编码，并输出包含输入信号的低频信号码的比特流 ，高频信号的自适应码，以及分类决策过程的结果。 对高频信号进行分类判定处理，根据分类判定处理的结果进行自适应编码或自适应解码，提高了语音输出信号的质量。

公开(公告)号：US08468025B2

公开(公告)日：2013-06-18

申请号：US13172509

申请日：2011-06-29

申请人： Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Chen Hu ,  Herve Marcel Taddei ,  Qing Zhang

发明人： Zexin Liu ,  Lei Miao ,  Longyin Chen ,  Chen Hu ,  Herve Marcel Taddei ,  Qing Zhang

IPC分类号： G10L19/00

CPC分类号： G10L19/0208 ,  G10L19/26 ,  G10L21/0208

摘要： A method and an apparatus for processing a signal are provided. The method includes: obtaining an energy average value of each sub-band for a current frame frequency-domain signal; obtaining a current frame modification coefficient of each sub-band for the current frame frequency-domain signal according to a spectral envelope and the energy average value of each sub-band; obtaining a weighted modification coefficient of each sub-band for the current frame frequency-domain signal by using the current frame modification coefficient and a relevant frame modification coefficient; and modifying the spectral envelope of each sub-band for the current frame frequency-domain signal by using the weighted modification coefficient.

摘要翻译： 提供了一种用于处理信号的方法和装置。 该方法包括：获得当前帧频域信号的每个子带的能量平均值; 根据每个子带的频谱包络和能量平均值，获取当前帧频域信号的每个子带的当前帧修改系数; 通过使用当前帧修正系数和相关帧修正系数，获得当前帧频域信号的每个子带的加权修正系数; 以及通过使用加权修正系数来修改当前帧频域信号的每个子带的频谱包络。

公开(公告)号：US20110181449A1

公开(公告)日：2011-07-28

申请号：US13086774

申请日：2011-04-14

申请人： Chen Hu ,  Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Qing Zhang ,  Herve Marcel Taddei

发明人： Chen Hu ,  Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Qing Zhang ,  Herve Marcel Taddei

IPC分类号： H03M5/02

CPC分类号： G10L19/24 ,  G10L19/032

摘要： A device relating to information processing technologies and including an encoding and decoding method configured to solve the poor decoding quality problem. The method includes: encoding each sample of an input signal to generate an encoded signal of a core layer; comparing residuals of all or a part of the samples of the input signal with encoding thresholds, where the residuals are generated by core layer encoding, and performing encoding according to comparison results to generate an encoded signal of an enhancement layer; and writing the encoded signal of the core layer and the encoded signal of the enhancement layer into a bitstream to generate an encoded signal of the input signal.

摘要翻译： 一种与信息处理技术相关的装置，包括用于解决差的解码质量问题的编码和解码方法。 该方法包括：对输入信号的每个样本进行编码以产生核心层的编码信号; 将输入信号的全部或部分样本的残差与编码阈值进行比较，其中通过核心层编码生成残差，并根据比较结果执行编码以产生增强层的编码信号; 以及将核心层的编码信号和增强层的编码信号写入比特流以产生输入信号的编码信号。

公开(公告)号：US08436754B2

公开(公告)日：2013-05-07

申请号：US13086780

申请日：2011-04-14

申请人： Chen Hu ,  Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Qing Zhang ,  Herve Marcel Taddei

发明人： Chen Hu ,  Lei Miao ,  Zexin Liu ,  Longyin Chen ,  Qing Zhang ,  Herve Marcel Taddei

IPC分类号： H03M7/38

CPC分类号： G10L19/24 ,  G10L19/032

摘要： The present invention relates to information processing technologies and discloses an encoding and decoding method and device to solve the poor decoding quality problem. The technical solution of the present invention includes: encoding each sample of an input signal to generate an encoded signal of a core layer; comparing residuals of all or a part of the samples of the input signal with encoding thresholds, where the residuals are generated by core layer encoding, and performing encoding according to comparison results to generate an encoded signal of an enhancement layer; and writing the encoded signal of the core layer and the encoded signal of the enhancement layer into a bitstream to generate an encoded signal of the input signal.

摘要翻译： 本发明涉及信息处理技术，并且公开了一种解码解码质量问题的解码方法和装置。 本发明的技术方案包括：对输入信号的每个样本进行编码以产生核心层的编码信号; 将输入信号的全部或部分样本的残差与编码阈值进行比较，其中通过核心层编码生成残差，并根据比较结果执行编码以产生增强层的编码信号; 以及将核心层的编码信号和增强层的编码信号写入比特流以产生输入信号的编码信号。