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51. 发明授权

US08046235B2 Apparatus and method of encoding audio data and apparatus and method of decoding encoded audio data 失效
标题翻译：编码音频数据的装置和方法以及对编码音频数据进行解码的方法
公开(公告)号：US08046235B2
公开(公告)日：2011-10-25
申请号：US12923171
申请日：2010-09-07
申请人： Miyoung Kim , Sangwook Kim , Dohyung Kim , Shihwa Lee , Junghoe Kim
发明人： Miyoung Kim , Sangwook Kim , Dohyung Kim , Shihwa Lee , Junghoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/0017 , G10L19/24
摘要： An apparatus and method encode audio data, and an apparatus and method decode encoded audio data. An audio data encoding apparatus includes: a scalable encoding unit dividing audio data into a plurality of layers, representing the audio data in predetermined numbers of bits in each of the plurality of layers, and encoding a lower layer prior to encoding an upper layer and an upper bit of each layer prior to encoding a lower bit of each layer; an SBR encoding unit generating spectral band replication (SBR) data that has information with respect to audio data in a frequency band of frequencies equal to or greater than a predetermined frequency among the audio data to be encoded, and encoding the SBR data; and a bitstream production unit generating a bitstream using the encoded SBR data and the encoded audio data corresponding to a predetermined bitrate.
摘要翻译：一种对音频数据进行编码的装置和方法，并且对编码音频数据进行解码的装置和方法。音频数据编码装置包括：可分级编码单元，将音频数据划分成多个层，以多个层中的每个层中的预定位数表示音频数据;以及在对上层进行编码之前编码下层，在对每个层的较低位进行编码之前的每一层的高位; SBR编码单元，生成频谱带复制（SBR）数据，其对于要编码的音频数据中具有等于或大于预定频率的频率的频带中的音频数据具有信息，并对SBR数据进行编码; 以及比特流产生单元，其使用编码的SBR数据和对应于预定比特率的编码音频数据来生成比特流。

52. 发明授权

US07933416B2 Method and apparatus for encoding and decoding multi-channel signals 有权
标题翻译：用于对多声道信号进行编码和解码的方法和装置
公开(公告)号：US07933416B2
公开(公告)日：2011-04-26
申请号：US11313995
申请日：2005-12-22
申请人： Dohyung Kim , Junghoe Kim , Shihwa Lee
发明人： Dohyung Kim , Junghoe Kim , Shihwa Lee
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , G10L19/04 , G10L25/12
摘要： A method of encoding multi-channel signals having two or more channels into a first signal and a second signal, and an apparatus to perform the method, the method including generating the first signal by performing a first operation using a first channel signal in the multi-channel signals; and generating the second signal by performing a second operation using a combination of the first channel signal and a second channel signal in the multi-channel signals.
摘要翻译：一种将具有两个或更多个信道的多信道信号编码成第一信号和第二信号的方法，以及执行该方法的装置，该方法包括通过使用该多路复用器中的第一信道信号执行第一操作来产生第一信号通道信号; 以及通过在多信道信号中使用第一信道信号和第二信道信号的组合执行第二操作来产生第二信号。

53. 发明授权

US07660720B2 Lossless audio coding/decoding method and apparatus 有权
标题翻译：无损音频编码/解码方法及装置
公开(公告)号：US07660720B2
公开(公告)日：2010-02-09
申请号：US11076284
申请日：2005-03-10
申请人： Ennmi Oh , Junghoe Kim , Miao Lei , Shihwa Lee , Sangwook Kim
发明人： Ennmi Oh , Junghoe Kim , Miao Lei , Shihwa Lee , Sangwook Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/0017
摘要： A lossless audio coding and/or decoding method and apparatus are provided. The coding method includes: mapping the audio signal in the frequency domain having an integer value into a bit-plane signal with respect to the frequency; obtaining a most significant bit and a Golomb parameter for each bit-plane; selecting a binary sample on a bit-plane to be coded in the order from the most significant bit to the least significant bit and from a lower frequency component to a higher frequency component; calculating the context of the selected binary sample by using significances of already coded bit-planes for each of a plurality of frequency lines existing in the vicinity of a frequency line to which the selected binary sample belongs; selecting a probability model by using the obtained Golomb parameter and the calculated contexts; and lossless-coding the binary sample by using the selected probability model. According to the method and apparatus, a compression ratio better than that of the bit-plane Golomb code (BPGC) is provided through context-based coding method having optimal performance.
摘要翻译：提供了一种无损音频编码和/或解码方法和装置。编码方法包括：将具有整数值的频域中的音频信号映射到相对于频率的位平面信号中; 为每个位平面获取最高有效位和Golomb参数; 在从最高有效位到最低有效位以及从较低频率分量到较高频率分量的顺序中选择待编码的位平面上的二进制采样; 通过使用存在于所选择的二进制样本所属的频率线附近的多个频率线中的每一个的已经编码的位平面的重要性来计算所选二进制样本的上下文; 通过使用获得的Golomb参数和计算的上下文来选择概率模型; 并通过使用所选择的概率模型对二进制样本进行无损编码。根据该方法和装置，通过具有最佳性能的基于上下文的编码方法提供比位平面Golomb码（BPGC）的压缩比更好的压缩比。

54. 发明申请

US20080037795A1 Method, medium, and system decoding compressed multi-channel signals into 2-channel binaural signals 有权
标题翻译：方法，中，系统将压缩的多通道信号解码为2通道双耳信号
公开(公告)号：US20080037795A1
公开(公告)日：2008-02-14
申请号：US11652687
申请日：2007-01-12
申请人： Sangchul Ko , Junghoe Kim
发明人： Sangchul Ko , Junghoe Kim
IPC分类号： H04R5/00
CPC分类号： H04S3/002 , H04S3/004 , H04S2420/01
摘要： A decoding method, medium, and system decoding an input compressed multi-channel signal, as a mono or stereo signal, into 2-channel binaural signals. Channel signals making up the multi-channel signals may be reconstructed from the input compressed signal in the quadrature mirror filter (QMF) domain, and head related transfer functions (HRTFs) for localizing channel signals in the frequency domain, represented as values in the time domain, may be transformed into spatial parameters in the QMF domain. Accordingly, channel signals may be localized in the QMF domain in directions corresponding to the channels, thereby decoding the input compressed signal as 2-channel binaural signals.
摘要翻译：将作为单声道或立体声信号的输入压缩多声道信号的解码方法，媒体和系统解码为2声道双耳信号。可以从正交镜像滤波器（QMF）域中的输入压缩信号和用于定位频域中的信道信号的头相关传输函数（HRTF）重建构成多声道信号的信道信号，表示为时间中的值域，可以转换为QMF域中的空间参数。因此，信道信号可以在与频道对应的方向上定位在QMF域中，从而将输入的压缩信号解码为2声道双耳信号。

55. 发明授权

US07245234B2 Method and apparatus for encoding and decoding digital signals 有权
标题翻译：用于对数字信号进行编码和解码的方法和装置
公开(公告)号：US07245234B2
公开(公告)日：2007-07-17
申请号：US11334524
申请日：2006-01-19
申请人： Dohyung Kim , Junghoe Kim , Shihwa Lee
发明人： Dohyung Kim , Junghoe Kim , Shihwa Lee
IPC分类号： H03M7/00
CPC分类号： G10L19/008
摘要： Provided are method and apparatus for encoding and decoding multi-channel signals composed of a plurality of channels using a similarity between frequency bands and a similarity between channels. multi-channel digital signals are encoded/decoded using a similarity between frequency bands and a similarity between channels such that the size of signals to be transmitted to a decoding apparatus from an encoding apparatus can be reduced while maintaining predetermined sound quality and high-frequency signals can be effectively encoded and decoded to provide stable and natural sound quality.
摘要翻译：提供了使用频带之间的相似性和信道之间的相似性来编码和解码由多个信道组成的多信道信号的方法和装置。使用频带之间的相似度和信道之间的相似度对多声道数字信号进行编码/解码，从而可以在保持预定声音质量和高频信号的同时减小要从编码装置发送到解码装置的信号的大小可以有效地编码和解码，以提供稳定和自然的音质。

56. 发明申请

US20060235678A1 Apparatus and method of encoding audio data and apparatus and method of decoding encoded audio data 有权
标题翻译：编码音频数据的装置和方法以及对编码音频数据进行解码的方法
公开(公告)号：US20060235678A1
公开(公告)日：2006-10-19
申请号：US11403827
申请日：2006-04-14
申请人： Miyoung Kim , Sangwook Kim , Donyung Kim , Shihwa Lee , Junghoe Kim
发明人： Miyoung Kim , Sangwook Kim , Donyung Kim , Shihwa Lee , Junghoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/0017 , G10L19/24
摘要： An apparatus and method encode audio data, and an apparatus and method decode encoded audio data. An audio data encoding apparatus includes: a scalable encoding unit dividing audio data into a plurality of layers, representing the audio data in predetermined numbers of bits in each of the plurality of layers, and encoding a lower layer prior to encoding an upper layer and an upper bit of each layer prior to encoding a lower bit of each layer; an SBR encoding unit generating spectral band replication (SBR) data that has information with respect to audio data in a frequency band of frequencies equal to or greater than a predetermined frequency among the audio data to be encoded, and encoding the SBR data; and a bitstream production unit generating a bitstream using the encoded SBR data and the encoded audio data corresponding to a predetermined bitrate.
摘要翻译：一种对音频数据进行编码的装置和方法，并且对编码音频数据进行解码的装置和方法。音频数据编码装置包括：可分级编码单元，将音频数据划分成多个层，以多个层中的每个层中的预定位数表示音频数据;以及在对上层进行编码之前编码下层，在对每个层的较低位进行编码之前的每一层的高位; SBR编码单元，生成频谱带复制（SBR）数据，其对于要编码的音频数据中具有等于或大于预定频率的频率的频带中的音频数据具有信息，并对SBR数据进行编码; 以及比特流产生单元，其使用编码的SBR数据和对应于预定比特率的编码音频数据来生成比特流。

57. 发明申请

US20050270195A1 Method and apparatus for encoding/decoding digital signal 有权
标题翻译：数字信号编码/解码的方法和装置
公开(公告)号：US20050270195A1
公开(公告)日：2005-12-08
申请号：US11137427
申请日：2005-05-26
申请人： Dohyung Kim , Junghoe Kim , Shihwa Lee , Sangwook Kim , Yangseock Seo
发明人： Dohyung Kim , Junghoe Kim , Shihwa Lee , Sangwook Kim , Yangseock Seo
IPC分类号： G10L19/14 , H03M7/30 , H03M3/00
CPC分类号： G10L19/035
摘要： A method and an apparatus for encoding/decoding a digital signal are provided. First, a digital input signal is transformed into samples to remove redundant information among signals. Then, a lookup table corresponding to a characteristic of the input signal is selected among a plurality of lookup tables that indicate different numbers of bits allocated for each quantization unit depending on different characteristics of input signals, and the number of bits allocated for each quantization unit is acquired from the selected lookup table. Next, a distribution of samples within each quantization unit is divided into a predetermined number of sections, and the samples are linearly quantized using the allocated number of bits on a section-by-section basis. Thereafter, a bitstream comprised of frames is produced from the quantized samples and predetermined side information so that information about a frame length is stored in the end of frame.
摘要翻译：提供了一种用于对数字信号进行编码/解码的方法和装置。首先，将数字输入信号变换为采样，以消除信号之间的冗余信息。然后，在多个查找表中选择与输入信号的特性相对应的查找表，该查找表根据输入信号的不同特性指示分配给每个量化单元的不同位数，并且为每个量化单元分配的位数从所选查询表中获取。接下来，将每个量化单元内的样本的分布划分为预定数量的部分，并且使用分配的位数逐行地对样本进行线性量化。此后，从量化样本和预定侧信息产生由帧构成的比特流，使得关于帧长度的信息被存储在帧的结尾。

58. 发明申请

US20050254586A1 Method of and apparatus for encoding/decoding digital signal using linear quantization by sections 有权
标题翻译：使用线性量化部分对数字信号进行编码/解码的方法和装置
公开(公告)号：US20050254586A1
公开(公告)日：2005-11-17
申请号：US11125076
申请日：2005-05-10
申请人： Junghoe Kim , Dohyung Kim , Shihwa Lee , Sangwook Kim
发明人： Junghoe Kim , Dohyung Kim , Shihwa Lee , Sangwook Kim
IPC分类号： G10L19/06 , G10L19/02 , H03M7/30 , H04B14/04
CPC分类号： G10L19/032
摘要： A method of encoding/decoding a digital signal using linear quantization by sections, and an apparatus for the same are provided. The method of encoding includes: converting a digital input signal, and removing redundant information from the digital signal; allocating a number of bits allocated to each predetermined quantized unit considering the importance of the digital signal; dividing the distribution of signal values into predetermined sections based on the predetermined quantized units, and linear quantizing data converted pin the operation of converting the digital input signal by sections; and generating a bit stream from the linear quantized data and predetermined side information. Therefore, a sound quality is improved compared to a sound quality produced by conventional linear quantizing devices and a complexity of a non-linear quantizing device is reduced.
摘要翻译：提供了使用线性量化部分对数字信号进行编码/解码的方法及其装置。编码方法包括：转换数字输入信号，从数字信号中去除冗余信息; 考虑数字信号的重要性，分配分配给每个预定量化单元的位数; 基于预定的量化单位将信号值的分布划分为预定的部分，并且线性量化数据转换为将数字输入信号逐段转换的操作; 以及从所述线性量化数据和预定侧信息生成比特流。因此，与传统线性量化装置产生的声音质量相比，提高了音质，并且减少了非线性量化装置的复杂性。

59. 发明申请

US20050180586A1 Method, medium, and apparatus for converting audio data 有权
标题翻译：用于转换音频数据的方法，介质和装置
公开(公告)号：US20050180586A1
公开(公告)日：2005-08-18
申请号：US11033733
申请日：2005-01-13
申请人： Dohyung Kim , Sangwook Kim , Ennmi Oh , Junghoe Kim , Yangseock Seo , Shihwa Lee
发明人： Dohyung Kim , Sangwook Kim , Ennmi Oh , Junghoe Kim , Yangseock Seo , Shihwa Lee
IPC分类号： G10L19/02 , G10L19/03 , G11B20/10 , H03G7/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/173
摘要： A method, medium, and apparatus for converting compressed audio data, including decoding compressed audio input data, in accordance with a corresponding compression format, coding a result of the decoding, in accordance with a predetermined compression format, and combining a result of the coding with the side information to generate audio output data to be compressed according to the predetermined compression format.
摘要翻译：一种根据相应压缩格式转换压缩音频数据的方法，介质和装置，包括解码压缩音频输入数据，根据预定压缩格式编码解码结果，并将编码结果利用侧信息根据预定的压缩格式生成要压缩的音频输出数据。

60. 发明授权

US08885854B2 Method, medium, and system decoding compressed multi-channel signals into 2-channel binaural signals 有权
标题翻译：方法，中，系统将压缩的多通道信号解码为2通道双耳信号
公开(公告)号：US08885854B2
公开(公告)日：2014-11-11
申请号：US11652687
申请日：2007-01-12
申请人： Sangchul Ko , Junghoe Kim
发明人： Sangchul Ko , Junghoe Kim
IPC分类号： H04R5/02 , H04S3/00
CPC分类号： H04S3/002 , H04S3/004 , H04S2420/01
摘要： A decoding method, medium, and system decoding an input compressed multi-channel signal, as a mono or stereo signal, into 2-channel binaural signals. Channel signals making up the multi-channel signals may be reconstructed from the input compressed signal in the quadrature mirror filter (QMF) domain, and head related transfer functions (HRTFs) for localizing channel signals in the frequency domain, represented as values in the time domain, may be transformed into spatial parameters in the QMF domain. Accordingly, channel signals may be localized in the QMF domain in directions corresponding to the channels, thereby decoding the input compressed signal as 2-channel binaural signals.
摘要翻译：将作为单声道或立体声信号的输入压缩多声道信号的解码方法，媒体和系统解码为2声道双耳信号。可以从正交镜像滤波器（QMF）域中的输入压缩信号和用于定位频域中的信道信号的头相关传输函数（HRTF）重建构成多声道信号的信道信号，表示为时间中的值域，可以转换为QMF域中的空间参数。因此，信道信号可以在与频道对应的方向上定位在QMF域中，从而将输入的压缩信号解码为2声道双耳信号。

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