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1. 发明申请

US20070106502A1 ADAPTIVE TIME/FREQUENCY-BASED AUDIO ENCODING AND DECODING APPARATUSES AND METHODS 有权
标题翻译：自适应时间/频率的音频编码和解码设备和方法
公开(公告)号：US20070106502A1
公开(公告)日：2007-05-10
申请号：US11535164
申请日：2006-09-26
申请人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
发明人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
IPC分类号： G10L11/04
CPC分类号： G10L19/12 , G10L19/02 , G10L19/20
摘要： Adaptive time/frequency-based audio encoding and decoding apparatuses and methods. The encoding apparatus includes a transformation & mode determination unit to divide an input audio signal into a plurality of frequency-domain signals and to select a time-based encoding mode or a frequency-based encoding mode for each respective frequency-domain signal, an encoding unit to encode each frequency-domain signal in the respective encoding mode, and a bitstream output unit to output encoded data, division information, and encoding mode information for each respective frequency-domain signal. In the apparatuses and methods, acoustic characteristics and a voicing model are simultaneously applied to a frame, which is an audio compression processing unit. As a result, a compression method effective for both music and voice can be produced, and the compression method can be used for mobile terminals that require audio compression at a low bit rate.
摘要翻译：自适应时间/频率音频编码和解码装置和方法。编码装置包括：变换和模式确定单元，用于将输入音频信号分成多个频域信号，并且为每个相应的频域信号选择基于时间的编码模式或基于频率的编码模式，编码单元，用于对各个编码模式中的每个频域信号进行编码，以及比特流输出单元，用于输出每个各个频域信号的编码数据，分割信息和编码模式信息。在装置和方法中，声音特性和语音模型被同时应用于作为音频压缩处理单元的帧。结果，可以产生对音乐和语音有效的压缩方法，并且压缩方法可以用于需要低比特率的音频压缩的移动终端。

2. 发明授权

US08019600B2 Speech signal compression and/or decompression method, medium, and apparatus 有权
标题翻译：语音信号压缩和/或解压缩方法，媒体和装置
公开(公告)号：US08019600B2
公开(公告)日：2011-09-13
申请号：US11128432
申请日：2005-05-13
申请人： Changyong Son , Hosang Sung , Hochong Park , Byounghak Jeong , Youngyo Kim
发明人： Changyong Son , Hosang Sung , Hochong Park , Byounghak Jeong , Youngyo Kim
IPC分类号： G10L19/00 , G10L19/02 , G10L19/14
CPC分类号： G10L19/025
摘要： A speech signal compression and/or decompression method, medium, and apparatus in which the speech signal is transformed into the frequency domain for quantizing and dequantizing information of frequency coefficients. The speech signal compression apparatus includes a transform unit to transform a speech signal into the frequency domain and obtain frequency coefficients, a magnitude quantization unit to transform magnitudes of the frequency coefficients, quantize the transformed magnitudes and obtain magnitude quantization indices, a sign quantization unit to quantize signs of the frequency coefficients and obtain sign quantization indices, and a packetizing unit to generate the magnitude and sign quantization indices as a speech packet.
摘要翻译：一种语音信号压缩和/或解压缩方法，介质和装置，其中语音信号被变换成频域以量化和去量化频率系数的信息。语音信号压缩装置包括将语音信号变换为频域并获得频率系数的变换单元，变换频率系数的幅度量化单位，量化变换幅度并获得幅度量化索引，符号量化单元，量化频率系数的符号并获得符号量化索引，以及分组单元，用于生成幅度和符号量化索引作为语音分组。

3. 发明授权

US07330139B2 Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream 有权
公开(公告)号：US07330139B2
公开(公告)日：2008-02-12
申请号：US11330168
申请日：2006-01-12
申请人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
发明人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
IPC分类号： H03M7/00
CPC分类号： G10L19/0017 , G10L19/24 , G10L21/038
摘要： A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a scalable arithmetic coded symbol may include arithmetic decoding of a symbol by using the symbol and a probability value for the symbol desired to be decoded, and determining whether or not to continue decoding by checking an ambiguity indicating whether or not decoding of the symbol to be decoded is completed. According to a method, medium, and apparatus of the present invention, data to which scalability is applied when arithmetic coding is performed in MPEG-4 scalable lossless audio coding can be efficiently decoded. Even when a bitstream is truncated, a decoding termination point can be known such that additional decoding of the truncated part can be performed.

4. 发明申请

US20060149538A1 High-band speech coding apparatus and high-band speech decoding apparatus in wide-band speech coding/decoding system and high-band speech coding and decoding method performed by the apparatuses 失效
标题翻译：宽带语音编码装置和宽带语音编码/解码系统中的高频带语音解码装置以及由该装置执行的高频带语音编码和解码方法
公开(公告)号：US20060149538A1
公开(公告)日：2006-07-06
申请号：US11285183
申请日：2005-11-23
申请人： Kangeun Lee , Changyong Son , Insung Lee , Jaehyun Shin , Jonghun Kim , Kyuhyuk Jung , Youngwook Ahn
发明人： Kangeun Lee , Changyong Son , Insung Lee , Jaehyun Shin , Jonghun Kim , Kyuhyuk Jung , Youngwook Ahn
IPC分类号： G10L19/10
CPC分类号： G10L21/038 , G10L19/0204 , G10L19/12
摘要： A high-band speech encoding apparatus and a high-band speech decoding apparatus that can reproduce high quality sound even at a low bitrate when wideband speech encoding and decoding using a bandwidth extension function, and a high-band speech encoding and decoding method performed by the apparatuses. The high-band speech encoding apparatus includes: a first encoding unit encoding a high-band speech signal based on a structure in which a harmonic structure and a stochastic structure are combined, if the high-band speech signal has a harmonic component; and a second encoding unit encoding a high-band speech signal based on a stochastic structure if the high-band speech signal has no harmonic components. The high-band speech decoding apparatus includes: a first decoding unit decoding a high-band speech signal based on a combination of a harmonic structure and a stochastic structure using received first decoding information; a second decoding unit decoding the high-band speech signal based on a stochastic structure using received second decoding information; and a switch outputting one of the decoded high-band speech signals received from the first and second decoding units according to received mode selection information.
摘要翻译：一种高带语音编码装置和高频带语音解码装置，即使在使用带宽扩展功能进行宽带语音编码和解码时也能以低比特率再现高品质声音，以及高频带语音编码和解码方法，由设备。高频语音编码装置包括：如果高频带语音信号具有谐波分量，则基于组合了谐波结构和随机结构的结构对高频语音信号进行编码的第一编码单元; 以及第二编码单元，如果高频带语音信号没有谐波分量，则基于随机结构对高频带语音信号进行编码。高频带语音解码装置包括：第一解码单元，使用接收到的第一解码信息，基于谐波结构和随机结构的组合对高频带语音信号进行解码; 第二解码单元，使用接收到的第二解码信息，基于随机结构解码所述高频带语音信号; 以及根据接收到的模式选择信息，输出从第一和第二解码单元接收的解码的高频带语音信号之一的开关。

5. 发明授权

US08595000B2 Method and apparatus to search fixed codebook and method and apparatus to encode/decode a speech signal using the method and apparatus to search fixed codebook 失效
标题翻译：使用该方法和装置搜索固定码本的方法和装置，用于搜索固定码本和方法和装置来对语音信号进行编码/解码
公开(公告)号：US08595000B2
公开(公告)日：2013-11-26
申请号：US11709255
申请日：2007-02-22
申请人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
发明人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
IPC分类号： G10L19/00 , G10L19/12 , G10L21/00
CPC分类号： G10L19/12 , G10L19/24 , G10L2019/0013
摘要： A method and an apparatus to encode and decode a speech signal using a code excited linear prediction (CELP) algorithm. In order to reduce a bit rate without degrading performance in an enhancement layer based on CELP, each of a fixed codebook of a core layer and a fixed codebook of the enhancement layer is divided into a plurality of spaces. The spaces of the fixed codebook of the enhancement layer excludes a space corresponding to a least distorted space determined from among the spaces of the fixed codebook of the core layer are searched.
摘要翻译：一种使用码激励线性预测（CELP）算法对语音信号进行编码和解码的方法和装置。为了在基于CELP的增强层中降低比特率而不降低性能的情况下，核心层的固定码本和增强层的固定码本中的每一个被分成多个空格。增强层的固定码本的空间不包括与核心层的固定码本的空格中确定的最小失真空间相对应的空间。

6. 发明授权

US07495586B2 Method and device to provide arithmetic decoding of scalable BSAC audio data 有权
标题翻译：提供可缩放BSAC音频数据的算术解码的方法和装置
公开(公告)号：US07495586B2
公开(公告)日：2009-02-24
申请号：US11957861
申请日：2007-12-17
申请人： Kihyun Choo , Junghoe Kim , Eunmi Oh , Changyong Son
发明人： Kihyun Choo , Junghoe Kim , Eunmi Oh , Changyong Son
IPC分类号： H03M7/38
CPC分类号： H03M7/30 , G10L19/24
摘要： A method and device to arithmetically decode scalable bit sliced arithmetic coding (BSAC) audio data are provided. The arithmetic decoding method includes checking whether all side information of a last layer of the BSAC audio data is to be decoded, and performing BSAC smart decoding and terminating the decoding when all the side information of the last layer is not decoded, and terminating decoding of the last layer when all the side information of the last layer is decoded. The BSAC smart decoding includes checking whether a symbol to be decoded is determined regardless of data read after the truncated bitstream, continuing the decoding when decoding can be performed regardless of data read after the truncated bitstream, and determining that ambiguity occurs and terminating the decoding, when the symbol to be decoded is determined dependent on the data read after the truncated bitstream. Accordingly, byte level scalability can be provided in a MPEG-4 BSAC decoder. Even though the bitstream is truncated, the decoding termination time can be known, and additional decoding with respect to a truncated portion of the bitstream can be performed.
摘要翻译：提供了一种用于算术解码可缩放位分片算术编码（BSAC）音频数据的方法和装置。算术解码方法包括检查BSAC音频数据的最后一层的所有侧信息是否被解码，并且当最后一层的所有侧信息未解码时，执行BSAC智能解码并终止解码，并终止解码当最后一层的所有侧面信息被解码时的最后一层。 BSAC智能解码包括检查是否确定要解码的符号，而不管截断比特流之后读取的数据如何，当可以执行解码时继续解码，而不管截断的比特流之后读取的数据如何，并且确定该模糊性并终止解码，当要解码的符号取决于在截断比特流之后读取的数据时确定。因此，可以在MPEG-4 BSAC解码器中提供字节级可扩展性。即使比特流被截断，解码终止时间可以是已知的，并且可以执行关于比特流的截断部分的附加解码。

7. 发明申请

US20080095276A1 METHOD AND DEVICE TO PROVIDE ARITHMETIC DECODING OF SCALABLE BSAC AUDIO DATA 有权
标题翻译：提供可扩展的BSAC音频数据的算术解码的方法和设备
公开(公告)号：US20080095276A1
公开(公告)日：2008-04-24
申请号：US11957861
申请日：2007-12-17
申请人： Kihyun CHOO , Junghoe Kim , Eunmi Oh , Changyong Son
发明人： Kihyun CHOO , Junghoe Kim , Eunmi Oh , Changyong Son
IPC分类号： G06F17/00 , H03D1/00
CPC分类号： H03M7/30 , G10L19/24
摘要： A method and device to arithmetically decode scalable bit sliced arithmetic coding (BSAC) audio data are provided. The arithmetic decoding method includes checking whether all side information of a last layer of the BSAC audio data is to be decoded, and performing BSAC smart decoding and terminating the decoding when all the side information of the last layer is not decoded, and terminating decoding of the last layer when all the side information of the last layer is decoded. The BSAC smart decoding includes checking whether a symbol to be decoded is determined regardless of data read after the truncated bitstream, continuing the decoding when decoding can be performed regardless of data read after the truncated bitstream, and determining that ambiguity occurs and terminating the decoding, when the symbol to be decoded is determined dependent on the data read after the truncated bitstream. Accordingly, byte level scalability can be provided in a MPEG-4 BSAC decoder. Even though the bitstream is truncated, the decoding termination time can be known, and additional decoding with respect to a truncated portion of the bitstream can be performed.
摘要翻译：提供了一种用于算术解码可缩放位分片算术编码（BSAC）音频数据的方法和装置。算术解码方法包括检查BSAC音频数据的最后一层的所有侧信息是否被解码，并且当最后一层的所有侧信息未解码时，执行BSAC智能解码并终止解码，并终止解码当最后一层的所有侧面信息被解码时的最后一层。 BSAC智能解码包括检查是否确定要解码的符号，而不管截断的比特流之后读取的数据如何，当可以执行解码时继续解码，而不管截断的比特流之后读取的数据如何，并且确定该模糊性并终止解码，当要解码的符号取决于在截断比特流之后读取的数据时确定。因此，可以在MPEG-4 BSAC解码器中提供字节级可扩展性。即使比特流被截断，解码终止时间可以是已知的，并且可以执行关于比特流的截断部分的附加解码。

8. 发明授权

US07330136B2 Method and device to provide arithmetic decoding of scalable BSAC audio data 失效
标题翻译：提供可缩放BSAC音频数据的算术解码的方法和装置
公开(公告)号：US07330136B2
公开(公告)日：2008-02-12
申请号：US11538501
申请日：2006-10-04
申请人： Kihyun Choo , Junghoe Kim , Eunmi Oh , Changyong Son
发明人： Kihyun Choo , Junghoe Kim , Eunmi Oh , Changyong Son
IPC分类号： H03M7/34
CPC分类号： H03M7/30 , G10L19/24
摘要： A method and device to arithmetically decode scalable bit sliced arithmetic coding (BSAC) audio data are provided. The arithmetic decoding method includes checking whether all side information of a last layer of the BSAC audio data is to be decoded, and performing BSAC smart decoding and terminating the decoding when all the side information of the last layer is not decoded, and terminating decoding of the last layer when all the side information of the last layer is decoded. The BSAC smart decoding includes checking whether a symbol to be decoded is determined regardless of data read after the truncated bitstream, continuing the decoding when decoding can be performed regardless of data read after the truncated bitstream, and determining that ambiguity occurs and terminating the decoding, when the symbol to be decoded is determined dependent on the data read after the truncated bitstream. Accordingly, byte level scalability can be provided in a MPEG-4 BSAC decoder. Even though the bitstream is truncated, the decoding termination time can be known, and additional decoding with respect to a truncated portion of the bitstream can be performed.
摘要翻译：提供了一种用于算术解码可缩放位分片算术编码（BSAC）音频数据的方法和装置。算术解码方法包括检查BSAC音频数据的最后一层的所有侧信息是否被解码，并且当最后一层的所有侧信息未解码时，执行BSAC智能解码并终止解码，并终止解码当最后一层的所有侧面信息被解码时的最后一层。 BSAC智能解码包括检查是否确定要解码的符号，而不管截断的比特流之后读取的数据如何，当可以执行解码时继续解码，而不管截断的比特流之后读取的数据如何，并且确定该模糊性并终止解码，当要解码的符号取决于在截断比特流之后读取的数据时确定。因此，可以在MPEG-4 BSAC解码器中提供字节级可扩展性。即使比特流被截断，解码终止时间可以是已知的，并且可以执行关于比特流的截断部分的附加解码。

9. 发明申请

US20070276655A1 Method and apparatus to search fixed codebook and method and apparatus to encode/decode a speech signal using the method and apparatus to search fixed codebook 失效
标题翻译：使用该方法和装置搜索固定码本的方法和装置，用于搜索固定码本和方法和装置来对语音信号进行编码/解码
公开(公告)号：US20070276655A1
公开(公告)日：2007-11-29
申请号：US11709255
申请日：2007-02-22
申请人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
发明人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
IPC分类号： G06F15/00 , G06F17/28 , G11B11/00
CPC分类号： G10L19/12 , G10L19/24 , G10L2019/0013
摘要： A method and an apparatus to encode and decode a speech signal using a code excited linear prediction (CELP) algorithm. In order to reduce a bit rate without degrading performance in an enhancement layer based on CELP, each of a fixed codebook of a core layer and a fixed codebook of the enhancement layer is divided into a plurality of spaces. The spaces of the fixed codebook of the enhancement layer excludes a space corresponding to a least distorted space determined from among the spaces of the fixed codebook of the core layer are searched.
摘要翻译：一种使用码激励线性预测（CELP）算法对语音信号进行编码和解码的方法和装置。为了在基于CELP的增强层中降低比特率而不降低性能的情况下，核心层的固定码本和增强层的固定码本中的每一个被分成多个空格。增强层的固定码本的空间不包括与核心层的固定码本的空格中确定的最小失真空间相对应的空间。

10. 发明申请

US20060284748A1 Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream 有权
标题翻译：可缩放音频数据算术解码方法，媒体和装置以及截取音频数据比特流的方法，媒体和装置
公开(公告)号：US20060284748A1
公开(公告)日：2006-12-21
申请号：US11330168
申请日：2006-01-12
申请人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
发明人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
IPC分类号： H03M7/34
CPC分类号： G10L19/0017 , G10L19/24 , G10L21/038
摘要： A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a scalable arithmetic coded symbol may include arithmetic decoding of a symbol by using the symbol and a probability value for the symbol desired to be decoded, and determining whether or not to continue decoding by checking an ambiguity indicating whether or not decoding of the symbol to be decoded is completed. According to a method, medium, and apparatus of the present invention, data to which scalability is applied when arithmetic coding is performed in MPEG-4 scalable lossless audio coding can be efficiently decoded. Even when a bitstream is truncated, a decoding termination point can be known such that additional decoding of the truncated part can be performed.
摘要翻译：可扩展音频数据算术解码方法，介质和装置，以及截取音频数据比特流的方法，介质和装置。对可缩放算术编码符号进行解码的算术解码方法可以包括通过使用符号和期望解码的符号的概率值对符号进行算术解码，并且通过检查指示是否进行歧义来确定是否继续解码要解码的符号的解码完成。根据本发明的方法，介质和装置，可以有效地解码在MPEG-4可伸缩无损音频编码中执行算术编码时应用可扩展性的数据。即使当比特流被截断时，可以知道解码终止点，使得可以执行对截断部分的附加解码。

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