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1. 发明授权

US6016111A Digital data coding/decoding method and apparatus 失效
公开(公告)号：US6016111A
公开(公告)日：2000-01-18
申请号：US978881
申请日：1997-11-26
申请人： Sung-hee Park , Yeon-bae Kim , Jae-seob Shin
发明人： Sung-hee Park , Yeon-bae Kim , Jae-seob Shin
IPC分类号： G10L19/00 , G10L19/02 , H04B1/66 , H04N7/26 , H04N7/30 , H03M7/00
CPC分类号： G10L19/005 , G10L19/035 , H04B1/665 , H04N19/184 , H04N19/60
摘要： A digital data coding/decoding method and apparatus are provided. The coding method includes the steps of representing respective digital data by digits of a predetermined same number, and coding the digital data represented by digits of the same number by a predetermined coding method from the uppermost significant digit sequence to the least significant digit sequence. The method for decoding digital data coded in the order of significance by rating the significance of digits of the digital data, includes the steps of analyzing significance of coded digital data, and decoding the analyzed digital data from upper significant digits to lower significant digits by a predetermined decoding method. Even if some bitstreams are lost or damaged by coding important information first, deterioration in audio quality can be reduced.

2. 发明授权

US6011496A Digital data coding/decoding method and apparatus 失效
标题翻译：数字数据编码/解码方法及装置
公开(公告)号：US6011496A
公开(公告)日：2000-01-04
申请号：US053661
申请日：1998-04-02
申请人： Sung-hee Park , Yeon-bae Kim , Jae-seob Shin
发明人： Sung-hee Park , Yeon-bae Kim , Jae-seob Shin
IPC分类号： G10L19/00 , G10L19/02 , H04B1/66 , H04N7/26 , H04N7/30 , H03M7/00
CPC分类号： G10L19/005 , G10L19/035 , H04B1/665 , H04N19/184 , H04N19/60
摘要： A digital data coding/decoding method and apparatus are provided. The coding method includes the steps of representing respective digital data by digits of a predetermined same number, and coding the digital data represented by digits of the same number by a predetermined coding method from the uppermost significant digit sequence to the least significant digit sequence. The method for decoding digital data coded in the order of significance by rating the significance of digits of the digital data, includes the steps of analyzing significance of coded digital data, and decoding the analyzed digital data from upper significant digits to lower significant digits by a predetermined decoding method. Even if some bitstreams are lost or damaged by coding important information first, deterioration in audio quality can be reduced.
摘要翻译：提供了一种数字数据编码/解码方法和装置。编码方法包括以预定的相同数字表示各个数字数据的步骤，并且通过预定的编码方法从最高有效数字序列到最低有效数字序列对由相同数字的数字表示的数字数据进行编码。通过对数字数据的数字的重要性进行评级来对通过对数字数据的重要性进行分级的数字数据进行解码的方式，包括分析编码数字数据的重要性的步骤，将分析的数字数据从高有效数字解码为低有效数字，预定的解码方法。即使一些比特流首先通过对重要信息进行编码而丢失或损坏，也可以降低音频质量的恶化。

3. 发明授权

US06349284B1 Scalable audio encoding/decoding method and apparatus 失效
标题翻译：可扩展音频编码/解码方法和装置
公开(公告)号：US06349284B1
公开(公告)日：2002-02-19
申请号：US09084893
申请日：1998-05-28
申请人： Sung-hee Park , Yeon-bae Kim
发明人： Sung-hee Park , Yeon-bae Kim
IPC分类号： G10L1900
CPC分类号： H04B1/665
摘要： A scalable audio encoding/decoding method and apparatus are provided. To code an audio signal into layered data streams having a base layer and at least one enhancement layer, the encoding method includes the steps of time/frequency mapping input audio signals and quantizing the spectral data with the same scale factor for each predetermined scalefactor band, and packing the quantized data into bit streams, wherein the bit stream generating step comprises the steps of coding the quantized data corresponding to the base layer, coding the quantized data corresponding to the next enhancement layer of the coded base layer and the remaining quantized data uncoded by a limit in a layer size and belonging to the coded layer, and performing the layer coding step for all enhancement layers to form bit streams. In the base layer coding step, the enhancement layer coding step and the sequential coding step, arithmetic coding is performed using a predetermined probability model in the order of bit sequences from the most significant bit sequence to the least significant bit sequence by representing the side information and quantized data corresponding to a layer to be coded in a predetermined number of bits. The side information contains scale factors and probability model information to be used in arithmetic coding.
摘要翻译：提供了可扩展的音频编码/解码方法和装置。为了将音频信号编码成具有基本层和至少一个增强层的分层数据流，编码方法包括以下步骤：对于每个预定的比例因子频带以相同的比例因子对输入音频信号进行时间/频率映射和量化频谱数据，并将量化的数据打包成比特流，其中比特流生成步骤包括对与基本层相对应的量化数据进行编码的步骤，对与编码的基本层的下一个增强层相对应的量化数据进行编码，以及未编码的剩余量化数据通过限制层大小并属于编码层，并且对所有增强层执行层编码步骤以形成比特流。在基本层编码步骤中，增强层编码步骤和顺序编码步骤，使用预定概率模型，按照从最高有效位序列到最低有效位序列的位序列的顺序执行算术编码，以及对应于要以预定位数编码的层的量化数据。边信息包含用于算术编码的比例因子和概率模型信息。

4. 发明授权

US06529604B1 Scalable stereo audio encoding/decoding method and apparatus 失效
标题翻译：可扩展的立体声音频编码/解码方法和装置
公开(公告)号：US06529604B1
公开(公告)日：2003-03-04
申请号：US09106016
申请日：1998-06-29
申请人： Sung-hee Park , Yeon-bae Kim
发明人： Sung-hee Park , Yeon-bae Kim
IPC分类号： H04R500
CPC分类号： H04H20/88 , H04B1/66
摘要： A scalable stereo audio encoding/decoding method and apparatus are provided. The method includes the steps of signal-processing input audio signals and quantizing the same for each predetermined coding band, coding the quantized data corresponding to the base layer among the quantized data, coding the quantized data corresponding to the next enhancement layer of the coded base layer and the remaining quantized data uncoded due to a layer size limit and belonging to the coded layer, and sequentially performing the layer coding steps for all enhancement layers to form bitstreams, wherein the base layer coding step, the enhancement layer coding step and the sequential coding step are performed such that the side information and quantized data corresponding to a layer to be coded are represented by digits of a same predetermined number; and then arithmetic-coded using a predetermined probability model in the order ranging from the MSB sequences to the LSB sequences, bit-sliced left-channel data and right-channel data being alternately coded in units of predetermined vectors.
摘要翻译：提供了可伸缩的立体声音频编码/解码方法和装置。该方法包括以下步骤：对输入音频信号进行信号处理并对每个预定编码频带进行量化，对量化数据中对应于基本层的量化数据进行编码，对与编码基底的下一增强层相对应的量化数据进行编码层和剩余的量化数据由于层大小限制而未编码，并且属于编码层，并且顺序地执行所有增强层的层编码步骤以形成比特流，其中基层编码步骤，增强层编码步骤和顺序执行编码步骤，使得与要编码的层相对应的副信息和量化数据由相同预定数量的数字表示; 然后按照从MSB序列到LSB序列的顺序使用预定概率模型进行算术编码，以预定向量为单位交替地编码比特分片的左声道数据和右声道数据。

5. 发明授权

US06557137B1 Bit-error resistant arithmetic coding/decoding apparatus and method thereof 失效
标题翻译：位抗误码算术编码/解码装置及其方法
公开(公告)号：US06557137B1
公开(公告)日：2003-04-29
申请号：US09573156
申请日：2000-05-19
申请人： Sung-hee Park , Yeon-bae Kim , Yang-seock Seo
发明人： Sung-hee Park , Yeon-bae Kim , Yang-seock Seo
IPC分类号： H03M1300
CPC分类号： H03M13/6312 , G06T9/005 , H03M7/4006 , H03M13/07
摘要： Regarding compression/restoration of data using arithmetic coding, a bit-error resistant arithmetic coding/decoding apparatus in which a plurality of independent segments, instead of single segment of all-connected codes, are formed to reduce propagation of bit errors between symbols is provided. The apparatus gives advantages of resistance to bit error while maintaining compression efficiency similar to that of existing arithmetic encoding which only considers compression.
摘要翻译：关于使用算术编码的数据的压缩/恢复，提供了一种耐位错误的算术编码/解码装置，其中形成多个独立的段，而不是形成全部连接的代码的单个段，以减少符号之间的位错误的传播。。该装置具有抵抗位错误的优点，同时保持与仅考虑压缩的现有算术编码类似的压缩效率。

6. 发明授权

US6122618A Scalable audio coding/decoding method and apparatus 失效
公开(公告)号：US6122618A
公开(公告)日：2000-09-19
申请号：US978877
申请日：1997-11-26
申请人： Sung-hee Park
发明人： Sung-hee Park
IPC分类号： H03M13/00 , G10L19/00 , G10L19/02 , H03M1/12 , H03M7/30 , H04B1/66 , H04N19/89
CPC分类号： H04N19/184 , G10L19/005 , G10L19/035 , G10L19/24 , H04B1/665 , H04N19/60
摘要： A scalable audio coding/decoding method and apparatus are provided. The coding method includes the steps of (a) signal-processing input audio signals and quantizing the same for each predetermined coding band, (b) coding the quantized data corresponding to the base layer within a predetermined layer size, (c) coding the quantized data corresponding to the next enhancement layer of the coded base layer and the remaining quantized data uncoded and belonging to the enhancement layer, within a predetermined layer size, and (d) sequentially performing the layer coding steps for all layers, wherein the steps (b), (c) and (d) each include the steps of (e) representing the quantized data corresponding to a layer to be coded by digits of a predetermined same number, and (f) coding the most significant digit sequences composed of most significant digits of the magnitude data composing the represented digital data. The method can accommodate various users' request and transmission channels, and the complexity of the encoder and decoder can be reduced. Also, according to the performance of decoders or bandwidth/congestion of transmission channels or by users' request, the bitrate or complexity can be controlled.

7. 发明授权

US6148288A Scalable audio coding/decoding method and apparatus 失效
公开(公告)号：US6148288A
公开(公告)日：2000-11-14
申请号：US53660
申请日：1998-04-02
申请人： Sung-hee Park
发明人： Sung-hee Park
IPC分类号： H03M13/00 , G10L19/00 , G10L19/02 , H03M1/12 , H03M7/30 , H04B1/66 , H04N19/89 , G10L21/00
CPC分类号： H04N19/184 , G10L19/005 , G10L19/035 , G10L19/24 , H04B1/665 , H04N19/60
摘要： A scalable audio coding/decoding method and apparatus are provided. The coding method includes the steps of (a) signal-processing input audio signals and quantizing the same for each predetermined coding band, (b) coding the quantized data corresponding to the base layer within a predetermined layer size, (c) coding the quantized data corresponding to the next enhancement layer of the coded base layer and the remaining quantized data uncoded and belonging to the enhancement layer, within a predetermined layer size, and (d) sequentially performing the layer coding steps for all layers, wherein the steps (b), (c) and (d) each include the steps of (e) representing the quantized data corresponding to a layer to be coded by digits of a predetermined same number, and (f) coding the most significant digit sequences composed of most significant digits of the magnitude data composing the represented digital data. The method can accommodate various users' request and transmission channels, and the complexity of the encoder and decoder can be reduced. Also, according to the performance of decoders or bandwidth/congestion of transmission channels or by users' request, the bitrate or complexity can be controlled.

8. 发明授权

US06438525B1 Scalable audio coding/decoding method and apparatus 有权
标题翻译：可扩展音频编码/解码方法和装置
公开(公告)号：US06438525B1
公开(公告)日：2002-08-20
申请号：US09612630
申请日：2000-07-07
申请人： Sung-hee Park
发明人： Sung-hee Park
IPC分类号： G10L1900
CPC分类号： H04N19/184 , G10L19/005 , G10L19/035 , G10L19/24 , H04B1/665 , H04N19/60
摘要： A scalable audio coding/decoding method and apparatus are provided. The coding method includes the steps of (a) signal-processing input audio signals and quantizing the same for each predetermined coding band, (b) coding the quantized data corresponding to the base layer within a predetermined layer size, (c) coding the quantized data corresponding to the next enhancement layer of the coded base layer and the remaining quantized data uncoded and belonging to the enhancement layer, within a predetermined layer size, and (d) sequentially performing the layer coding steps for all layers, wherein the steps (b), (c) and (d) each include the steps of (e) representing the quantized data corresponding to a layer to be coded by digits of a predetermined same number, and (f) coding the most significant digit sequences composed of most significant digits of the magnitude data composing the represented digital data. The method can accommodate various users' request and transmission channels, and the complexity of the encoder and decoder can be reduced. Also, according to the performance of decoders or bandwidth/congestion of transmission channels or by users' request, the bitrate or complexity can be controlled.
摘要翻译：提供了可扩展的音频编码/解码方法和装置。编码方法包括以下步骤：（a）对每个预定编码频带对输入音频信号进行信号处理和量化，（b）对与预定层大小相对应的量化数据进行编码，（c）对量化的对应于编码基础层的下一个增强层的数据和未被编码并且属于增强层的剩余的量化数据在预定的层大小内，以及（d）顺序地执行所有层的层编码步骤，其中步骤（b ），（c）和（d）各自包括以下步骤：（e）表示与通过预定相同数字的数字编码的层对应的量化数据的步骤，以及（f）编码由最重要的组成的最高有效数字序列构成表示的数字数据的幅度数据的数字。该方法可以适应各种用户的请求和传输通道，可以减少编码器和解码器的复杂度。此外，根据解码器的性能或传输信道的带宽/拥塞或用户的请求，可以控制比特率或复杂度。

9. 发明授权

US5809474A Audio encoder adopting high-speed analysis filtering algorithm and audio decoder adopting high-speed synthesis filtering algorithm 失效
标题翻译：音频编码器采用高速分析滤波算法和音频解码器采用高速合成滤波算法
公开(公告)号：US5809474A
公开(公告)日：1998-09-15
申请号：US706144
申请日：1996-09-20
申请人： Sung-hee Park
发明人： Sung-hee Park
IPC分类号： G10L19/02 , G10L19/00 , H03M7/30 , H04B1/66 , H03M7/00 , G06T9/00
CPC分类号： H04B1/665
摘要： An audio encoder/decoder adopting a high-speed analysis filtering algorithm is provided. The audio encoder has a mapping unit for classifying a received audio signal according to a frequency band by using the high-speed band analysis filtering algorithm, a psychoacoustic model for assigning bits to each frequency band using psychoacoustic characteristics, a quantizing and encoding unit for quantizing and encoding the mapped signal according to the number of bits assigned to each frequency band, and a frame packing unit for generating a bit stream from a signal output from said quantizing and encoding unit. The audio decoder has a frame unpacking unit for unpacking a signal from a coded and received bit stream, a decoding and inverse-quantizing unit for decoding and inverse-quantizing said quantized signal, and an inverse-mapping unit for time/frequency-inverse-mapping the inverse-quantized signal by using the high-speed band synthesis filtering algorithm.
摘要翻译：提供采用高速分析滤波算法的音频编码器/解码器。音频编码器具有映射单元，用于通过使用高速带分析滤波算法，根据频带对接收到的音频信号进行分类，用于使用心理声学特性向每个频带分配比特的心理声学模型，量化和编码单元以及根据分配给每个频带的比特数来编码所映射的信号;以及帧打包单元，用于从所述量化和编码单元输出的信号产生比特流。音频解码器具有用于解码来自编码和接收的比特流的信号的帧解包单元，用于对所述量化信号进行解码和反量化的解码和反量化单元，以及用于时间/频率倒数的逆映射单元，通过使用高速频带合成滤波算法对逆量化信号进行映射。

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