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21. 发明授权

US08489405B2 Compression coding and decoding method, coder, decoder, and coding device 有权
标题翻译：压缩编码和解码方法，编码器，解码器和编码装置
公开(公告)号：US08489405B2
公开(公告)日：2013-07-16
申请号：US13309373
申请日：2011-12-01
申请人： Fengyan Qi , Lei Miao , Qing Zhang
发明人： Fengyan Qi , Lei Miao , Qing Zhang
IPC分类号： G10L19/00 , G10L19/04 , G10L19/12
CPC分类号： G10L19/09 , H03M7/40
摘要： The embodiments of the present invention relate to a compression coding and decoding method, a coder, a decoder and a coding device. The compression coding method includes: extracting sign information of an input signal to obtain an absolute value signal of the input signal; obtaining a residual signal of the absolute value signal by using a prediction coefficient, where the prediction coefficient is obtained by prediction and analysis that are performed according to a signal characteristic of the absolute value signal of the input signal; and multiplexing the residual signal, the sign information and a coding parameter to output a coding code stream, after the residual signal, the sign information and the coding parameter are respectively coded, so as to improve compression efficiency of a voice and audio signal.
摘要翻译：本发明的实施例涉及压缩编码和解码方法，编码器，解码器和编码装置。压缩编码方法包括：提取输入信号的符号信息以获得输入信号的绝对值信号; 通过使用预测系数获得绝对值信号的残差信号，其中通过根据输入信号的绝对值信号的信号特性执行的预测和分析获得预测系数; 在分别对剩余信号，符号信息和编码参数进行编码之后，复用残留信号，符号信息和编码参数以输出编码码流，以提高语音和音频信号的压缩效率。

22. 发明授权

US08571112B2 Specification method and apparatus for coding and decoding 有权
标题翻译：用于编码和解码的规范方法和装置
公开(公告)号：US08571112B2
公开(公告)日：2013-10-29
申请号：US12778644
申请日：2010-05-12
申请人： Fengyan Qi , Lei Miao , Qing Zhang
发明人： Fengyan Qi , Lei Miao , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/0019 , H03M7/30
摘要： A coding method, a decoding method, a coding apparatus, and a decoding apparatus are disclosed herein. A coding method includes: obtaining a value of each sample of an input data frame; determining pulse samples and non-pulse samples in the input data frame according to the distribution of values of samples of the input data frame; encoding the determined pulse samples in the input data frame in a first coding mode to obtain a first data stream; encoding the determined non-pulse samples in the input data frame in a second coding mode to obtain a second data stream; and multiplexing the first data stream and the second data stream to obtain an output coded data stream of the input data frame. Compared with the prior art, the technical solution under the present disclosure reduces the number of bits required for encoding the entire data frame is reduced, and improves the compression efficiency of the data frame with a wide dynamic range.
摘要翻译：本文公开了一种编码方法，解码方法，编码装置和解码装置。编码方法包括：获取输入数据帧的每个样本的值; 根据输入数据帧的样本值的分布，确定输入数据帧中的脉冲样本和非脉冲样本; 以第一编码模式对输入数据帧中确定的脉冲样本进行编码以获得第一数据流; 以第二编码模式对输入数据帧中确定的非脉冲样本进行编码，以获得第二数据流; 并且多路复用第一数据流和第二数据流，以获得输入数据帧的输出编码数据流。与现有技术相比，本公开的技术方案减少了整个数据帧的编码所需的比特数量，并提高了宽动态范围内的数据帧的压缩效率。

23. 发明申请

US20100290535A1 Specification method and apparatus for coding and decoding 有权
标题翻译：用于编码和解码的规范方法和装置
公开(公告)号：US20100290535A1
公开(公告)日：2010-11-18
申请号：US12778644
申请日：2010-05-12
申请人： Fengyan Qi , Lei Miao , Qing Zhang
发明人： Fengyan Qi , Lei Miao , Qing Zhang
IPC分类号： H04N11/02
CPC分类号： G10L19/0019 , H03M7/30
摘要： A coding method, a decoding method, a coding apparatus, and a decoding apparatus are disclosed herein. A coding method includes: obtaining a value of each sample of an input data frame; determining pulse samples and non-pulse samples in the input data frame according to the distribution of values of samples of the input data frame; encoding the determined pulse samples in the input data frame in a first coding mode to obtain a first data stream; encoding the determined non-pulse samples in the input data frame in a second coding mode to obtain a second data stream; and multiplexing the first data stream and the second data stream to obtain an output coded data stream of the input data frame. Compared with the prior art, the technical solution under the present disclosure reduces the number of bits required for encoding the entire data frame is reduced, and improves the compression efficiency of the data frame with a wide dynamic range.
摘要翻译：本文公开了一种编码方法，解码方法，编码装置和解码装置。编码方法包括：获取输入数据帧的每个样本的值; 根据输入数据帧的样本值的分布，确定输入数据帧中的脉冲样本和非脉冲样本; 以第一编码模式对输入数据帧中确定的脉冲样本进行编码以获得第一数据流; 以第二编码模式对输入数据帧中确定的非脉冲样本进行编码，以获得第二数据流; 并且多路复用第一数据流和第二数据流，以获得输入数据帧的输出编码数据流。与现有技术相比，本公开的技术方案减少了整个数据帧的编码所需的比特数量，并提高了宽动态范围内的数据帧的压缩效率。

24. 发明授权

US09105263B2 Audio signal coding and decoding method and device 有权
标题翻译：音频信号编解码方法及装置
公开(公告)号：US09105263B2
公开(公告)日：2015-08-11
申请号：US13532237
申请日：2012-06-25
申请人： Fengyan Qi , Zexin Liu , Lei Miao
发明人： Fengyan Qi , Zexin Liu , Lei Miao
IPC分类号： G10L19/00 , G10L19/002 , G10L19/02 , G10L19/028
CPC分类号： G10L19/032 , G10L19/002 , G10L19/0204 , G10L19/028
摘要： Embodiments of the present invention provide an audio signal coding and decoding method and device. The coding method includes: dividing a frequency band of an audio signal into a plurality of sub-bands, and quantifying a sub-band normalization factor of each sub-band; determining signal bandwidth of bit allocation according to the quantized sub-band normalization factor, or according to the quantized sub-band normalization factor and bit rate information; allocating bits for a sub-band within the determined signal bandwidth; and coding a spectrum coefficient of the audio signal according to the bits allocated for each sub-band. According to embodiments of the present invention, during coding and decoding, signal bandwidth of bit allocation is determined according to the quantized sub-band normalization factor and bit rate information. In this manner, the determined signal bandwidth is effectively coded and decoded by centralizing the bits, and audio quality is improved.
摘要翻译：本发明的实施例提供一种音频信号编码和解码方法和装置。编码方法包括：将音频信号的频带划分成多个子带，并对每个子带的子带归一化因子进行量化; 根据量化的子带归一化因子，或根据量化的子带归一化因子和比特率信息确定比特分配的信号带宽; 在所确定的信号带宽内分配用于子带的比特; 以及根据为每个子带分配的比特来对音频信号的频谱系数进行编码。根据本发明的实施例，在编码和解码期间，根据量化的子带归一化因子和比特率信息来确定比特分配的信号带宽。以这种方式，通过集中位来有效地对确定的信号带宽进行编码和解码，并提高音频质量。

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