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1. 发明申请

US20090299757A1 METHOD AND APPARATUS FOR ENCODING AND DECODING 审中-公开
标题翻译：编码和解码的方法和装置
公开(公告)号：US20090299757A1
公开(公告)日：2009-12-03
申请号：US12508103
申请日：2009-07-23
申请人： Wei Guo , Peilin Liu , Wei Li , Lijing Xu , Qing Zhang , Jainfeng Xu , Shenghu Sang , Zhengzhong Du , Chen Hu
发明人： Wei Guo , Peilin Liu , Wei Li , Lijing Xu , Qing Zhang , Jainfeng Xu , Shenghu Sang , Zhengzhong Du , Chen Hu
IPC分类号： G10L19/00
CPC分类号： G10L19/18 , G10L19/0212 , G10L19/022 , G10L19/04
摘要： An method for encoding comprising: obtaining, according to a data length of a first overlapped portion between encoding data of a current frame and encoding data of a previous frame, first encoding data corresponding to the data length of the first overlapped portion from the previous frame, if the previous frame is encoded in a first encoding mode and the current frame is to be encoded in a second encoding mode; and encoding, in the second encoding mode, the first encoding data corresponding to the data length of the first overlapped portion from the previous frame and encoding data of the current frame. The corresponding decoding method, encoding and decoding apparatuses are also disclosed.
摘要翻译：一种用于编码的方法，包括：根据当前帧的编码数据与前一帧的编码数据之间的第一重叠部分的数据长度获得与来自前一帧的第一重叠部分的数据长度相对应的第一编码数据如果先前帧以第一编码模式编码并且当前帧将以第二编码模式编码; 以及在第二编码模式中，对应于来自前一帧的第一重叠部分的数据长度的第一编码数据和当前帧的编码数据进行编码。还公开了相应的解码方法，编码和解码装置。

2. 发明申请

US20090204396A1 METHOD AND APPARATUS FOR IMPLEMENTING SPEECH DECODING IN SPEECH DECODER FIELD OF THE INVENTION 有权
标题翻译：用于在语音解码器中实现语音解码的方法和装置技术领域
公开(公告)号：US20090204396A1
公开(公告)日：2009-08-13
申请号：US12426379
申请日：2009-04-20
申请人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du , Chen Hu
发明人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du , Chen Hu
IPC分类号： G10L11/04
CPC分类号： G10L19/005 , G10L19/09 , G10L19/107
摘要： The present disclosure relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating a pitch lag parameter of the erroneous frame; decoding the data frames according to the calculated pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter includes: determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, wherein the preset adjustment policy is adjusting the determined pitch lag parameter of the current erroneous frame within a preset value range according to the number of the continuous erroneous frames.
摘要翻译：本公开涉及一种解码方法和装置。该方法包括：从编码器接收数据帧; 如果出现任何错误帧，则计算错误帧的音调滞后参数; 根据所计算的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。确定音调滞后参数的过程包括：确定连续错误帧的数量和前一帧的音调滞后参数; 根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，以及计算和确定当前错误帧的音调滞后参数，其中预设调整策略正在调整所确定的音调滞后参数根据连续错误帧的数量在预设值范围内的当前错误帧。

3. 发明授权

US08145480B2 Method and apparatus for implementing speech decoding in speech decoder field of the invention 有权
标题翻译：在本发明的语音解码器领域中实现语音解码的方法和装置
公开(公告)号：US08145480B2
公开(公告)日：2012-03-27
申请号：US12426379
申请日：2009-04-20
申请人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du , Chen Hu
发明人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du , Chen Hu
IPC分类号： G10L21/02 , G10L19/00
CPC分类号： G10L19/005 , G10L19/09 , G10L19/107
摘要： The present disclosure relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating a pitch lag parameter of the erroneous frame; decoding the data frames according to the calculated pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter includes: determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, wherein the preset adjustment policy is adjusting the determined pitch lag parameter of the current erroneous frame within a preset value range according to the number of the continuous erroneous frames.
摘要翻译：本公开涉及一种解码方法和装置。该方法包括：从编码器接收数据帧; 如果出现任何错误帧，则计算错误帧的音调滞后参数; 根据所计算的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。确定音调滞后参数的过程包括：确定连续错误帧的数量和前一帧的音调滞后参数; 根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，以及计算和确定当前错误帧的音调滞后参数，其中预设调整策略正在调整所确定的音调滞后参数根据连续错误帧的数量在预设值范围内的当前错误帧。

4. 发明授权

US08447622B2 Decoding method and device 有权
标题翻译：解码方法和设备
公开(公告)号：US08447622B2
公开(公告)日：2013-05-21
申请号：US12427848
申请日：2009-04-22
申请人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du
发明人： Jianfeng Xu , Lijing Xu , Qing Zhang , Wei Li , Shenghu Sang , Zhengzhong Du
IPC分类号： G10L19/00 , G10L19/14
CPC分类号： G10L19/005
摘要： A decoding method and device are provided. The spectrum parameter of a current bad data frame is determined. Specifically, a number of continuous bad frames that occur currently is determined. A spectrum parameter of a good data frame before the current bad data frame is determined. And a constant mean value of a spectrum parameter is determined. Then, the spectrum parameter of the good data frame is adaptively shifted towards the constant mean value of the spectrum parameter according to the number of the continuous bad data frames to calculate and obtain spectrum parameter information of the current bad frame. When the continuous bad data frames occur, the relevance between the spectrum parameter of the nearest good frame and the spectrum parameter of the current bad frame is gradually reduced, so that more accurate spectrum parameter of the current bad data frame can be obtained, thereby obtaining a better speech quality under a same code rate and a same frame error rate.
摘要翻译：提供了一种解码方法和装置。确定当前不良数据帧的频谱参数。具体地，确定当前发生的多个连续的坏帧。确定当前不良数据帧之前的良好数据帧的频谱参数。并确定频谱参数的恒定平均值。然后，根据连续不良数据帧的数量，将良好数据帧的频谱参数自适应地偏移到频谱参数的常数平均值，以计算并获得当前坏帧的频谱参数信息。当发生连续不良数据帧时，最近好帧的频谱参数与当前不良帧的频谱参数之间的相关性逐渐减小，从而可以获得当前不良数据帧的更准确的频谱参数，从而获得在相同的码率和相同的帧错误率下，更好的语音质量。

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