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：US08103515B2

公开(公告)日：2012-01-24

申请号：US13160115

申请日：2011-06-14

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

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

IPC分类号： G10L19/00

CPC分类号： G10L19/22 ,  G10L19/025

摘要： A signal classification processing method, a classification processing device, and an encoding system are provided. The signal classification processing method includes: obtaining a high band input signal; determining a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal; and determining an encoding mode corresponding to the signal type. The classification processing device includes: a receiving unit, configured to obtain a high band input signal; and a processing unit, configured to determine a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal and determine an encoding mode corresponding to the signal type. An encoding system is also provided. Therefore, type subdivision and processing are performed on the high band input signal, so as to facilitate encoding and decoding processing of the signal.

摘要翻译： 提供信号分类处理方法，分类处理装置和编码系统。 信号分类处理方法包括：获得高频带输入信号; 根据高频带输入信号的时域特性参数和/或频域特性参数，确定所获得的高频带输入信号的信号类型; 以及确定与所述信号类型对应的编码模式。 分类处理装置包括：接收单元，被配置为获得高频带输入信号; 以及处理单元，被配置为根据所述高频带输入信号的时域特性参数和/或频域特性参数来确定所获得的高频带输入信号的信号类型，并且确定与所述信号类型对应的编码模式。 还提供了编码系统。 因此，对高频带输入信号进行类型细分处理，便于信号的编码和解码处理。

公开(公告)号：US08600739B2

公开(公告)日：2013-12-03

申请号：US12481060

申请日：2009-06-09

申请人： Dejun Zhang ,  Liang Zhang ,  Yue Lang ,  Tinghong Wang ,  Lixiong Li ,  Wenhai Wu ,  Wei Xiao ,  Fuwei Ma ,  Zexin Liu

发明人： Dejun Zhang ,  Liang Zhang ,  Yue Lang ,  Tinghong Wang ,  Lixiong Li ,  Wenhai Wu ,  Wei Xiao ,  Fuwei Ma ,  Zexin Liu

IPC分类号： G10L19/24

CPC分类号： G10L19/24 ,  G10L2019/0013

摘要： A coding method is adapted to select different codebook search algorithms according to varied types of input signals. An encoder using the coding method is also provided. As appropriate search algorithms may be selected according to all possible structural features of the input signals, certain types of signals for which satisfactory results may be obtained through simple computations may match with search algorithms suitable for these signal types and having low computation complexities, so as to achieve better performance with fewer system resources. Meanwhile, other types of signals that need complicated computations may be processed by more sophisticated search algorithms, thereby ensuring the coding quality.

摘要翻译： 一种编码方法适用于根据不同类型的输入信号选择不同的码本搜索算法。 还提供了使用编码方法的编码器。 可以根据输入信号的所有可能的结构特征来选择合适的搜索算法，通过简单的计算可​​获得令人满意的结果的某些类型的信号可以与适合于这些信号类型的搜索算法匹配并具有低的计算复杂度，因此 以更少的系统资源实现更好的性能。 同时，需要复杂计算的其他类型的信号可以通过更复杂的搜索算法来处理，从而确保编码质量。

公开(公告)号：US09991905B2

公开(公告)日：2018-06-05

申请号：US13572980

申请日：2012-08-13

申请人： Wei Xiao ,  Qing Zhang

发明人： Wei Xiao ,  Qing Zhang

IPC分类号： H04N7/12 ,  H03M7/30

CPC分类号： H03M7/3082

摘要： An encoding method, decoding method, encoder, and decoder are provided in embodiments of this invention. The encoding method comprises: selecting at least one dimension vector from at least two dimension vectors to partition the coefficients to be encoded into vectors, according to the number of the coefficients to be encoded contained in a current subband; quantizing the vectors partitioned from the coefficients to be encoded into lattice vectors according to the selected dimension, and then mapping the lattice vectors to lattice index vectors; performing lossless encoding on the lattice index vectors.