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31. 发明授权

US08099183B2 System, medium, and method of encoding/decoding multi-channel audio signals 有权
公开(公告)号：US08099183B2
公开(公告)日：2012-01-17
申请号：US11602278
申请日：2006-11-21
申请人： Junghoe Kim , Miao Lei , Eunmi Oh
发明人： Junghoe Kim , Miao Lei , Eunmi Oh
IPC分类号： G06F17/00
摘要： An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.

32. 发明授权

US07961889B2 Apparatus and method for processing multi-channel audio signal using space information 有权
标题翻译：使用空间信息处理多声道音频信号的装置和方法
公开(公告)号：US07961889B2
公开(公告)日：2011-06-14
申请号：US11210908
申请日：2005-08-25
申请人： Junghoe Kim , Sangchul Ko , Shihwa Lee , Eunmi Oh , Miao Lei
发明人： Junghoe Kim , Sangchul Ko , Shihwa Lee , Eunmi Oh , Miao Lei
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S3/008 , H04S7/30 , H04S2400/03 , H04S2420/01
摘要： An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.
摘要翻译：一种使用空间信息处理多声道音频信号的装置和方法。该装置包括：主编码单元，通过将包含在多声道音频信号中的包围成分的空间信息应用于多声道音频信号，使用多声道音频信号产生侧信息或下行信号的立体声信号，混合结果，对立体声信号和侧信息进行编码，并将编码结果作为编码信号发送; 以及主解码单元，接收编码信号，使用接收的编码信号对立体声信号和侧信息进行解码，使用解码的侧信息进行解码的立体声信号的混合，以及恢复多声道音频信号。

33. 发明授权

US07825834B2 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：US07825834B2
公开(公告)日：2010-11-02
申请号：US12000671
申请日：2007-12-14
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.
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。

34. 发明授权

US07508333B2 Method and apparatus to quantize and dequantize input signal, and method and apparatus to encode and decode input signal 失效
标题翻译：用于量化和去量化输入信号的方法和装置，以及对输入信号进行编码和解码的方法和装置
公开(公告)号：US07508333B2
公开(公告)日：2009-03-24
申请号：US11581331
申请日：2006-10-17
申请人： Junghoe Kim , Eunmi Oh , Anton Porov
发明人： Junghoe Kim , Eunmi Oh , Anton Porov
IPC分类号： H03M7/26
CPC分类号： H04N19/126 , G10L19/035
摘要： A method and apparatus to quantize and dequantize an input signal, and a method and apparatus to encode and decode an input signal. The method of quantizing an input signal includes determining a quantization scale type according to a distribution feature of the input signal, and quantizing the input signal according to the determined quantization scale type. Accordingly, when a number of assigned bits is small in an encoding process, signal distortion can be minimized without an increase in complexity or having to use large sized additional information in order to determine an optimum scale. In addition, the input signal can be encoded by considering a trade-off of a distortion rate corresponding to the number of assigned bits of the input signal.
摘要翻译：用于量化和去量化输入信号的方法和装置，以及对输入信号进行编码和解码的方法和装置。量化输入信号的方法包括根据输入信号的分布特征确定量化尺度类型，并根据确定的量化比例类型量化输入信号。因此，当编码处理中的多个分配比特小时，可以最小化信号失真，而不增加复杂度，或者必须使用大尺寸附加信息以便确定最佳比例。此外，可以通过考虑与输入信号的分配位数相对应的失真率的权衡来编码输入信号。

35. 发明申请

US20080122668A1 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：US20080122668A1
公开(公告)日：2008-05-29
申请号：US12000671
申请日：2007-12-14
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.
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。

36. 发明申请

US20070223709A1 Method, medium, and system generating a stereo signal 有权
标题翻译：方法，介质和系统产生立体声信号
公开(公告)号：US20070223709A1
公开(公告)日：2007-09-27
申请号：US11707989
申请日：2007-02-20
申请人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
发明人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
IPC分类号： H04R5/00 , H04B1/00
CPC分类号： H04N13/161 , G10L19/008 , H04S1/007 , H04S3/008 , H04S7/308 , H04S2420/03
摘要： Surround audio decoding for selectively generating an audio signal from a multi-channel signal. In the surround audio decoding, a down-mixed signal, e.g., as down-mixed by an encoding terminal, is selectively up-mixed to a stereo signal or a multi-channel signal, by generating spatial information for generating the stereo signal, using spatial information for up-mixing the down-mixed signal to the multi-channel signal.
摘要翻译：环绕音频解码，用于从多声道信号选择性地产生音频信号。在环绕音频解码中，通过生成用于产生立体声信号的空间信息，例如通过编码终端下混合的下混合信号被选择性地上混为立体声信号或多声道信号，使用用于将下混合信号上混合到多声道信号的空间信息。

37. 发明申请

US20070115153A1 METHOD AND DEVICE TO PROVIDE ARITHMETIC DECODING OF SCALABLE BSAC AUDIO DATA 失效
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：US20070115153A1
公开(公告)日：2007-05-24
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。

38. 发明授权

US09934789B2 Method, medium, and apparatus with scalable channel decoding 有权
公开(公告)号：US09934789B2
公开(公告)日：2018-04-03
申请号：US11652031
申请日：2007-01-11
申请人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
发明人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
IPC分类号： H04R5/00 , G10L19/24 , G10L19/008
CPC分类号： G10L19/24 , G10L19/008
摘要： A method, medium, and apparatus with scalable channel decoding. The method includes recognizing the configuration of channels or speakers, calculating the respective number of same path decoding levels for each multi-channel signal using the recognized configuration of the channels or speakers, and performing decoding and up-mixing according to the calculated respective number of decoding levels.

39. 发明授权

US09100039B2 System, medium, and method of encoding/decoding multi-channel audio signals 有权
标题翻译：多声道音频信号编码/解码的系统，媒介和方法
公开(公告)号：US09100039B2
公开(公告)日：2015-08-04
申请号：US13599147
申请日：2012-08-30
申请人： Junghoe Kim , Miao Lei , Eunmi Oh
发明人： Junghoe Kim , Miao Lei , Eunmi Oh
IPC分类号： H04R5/00 , H03M7/30 , G10L19/008 , H04S3/00
CPC分类号： H03M7/30 , G10L19/008 , G10L19/167 , H04H20/80 , H04S3/002 , H04S3/008 , H04S2420/03
摘要： An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.
摘要翻译：一种对多声道音频信号进行编码/解码的系统，方法和方法，包括解码级产生单元，其产生解码级信息，该解码级信息有助于将包含多个音频信道信号和空间信息的比特流解码为多个音频信道信号，其中所述空间信息包括关于信道之间的幅度差异和/或相似性的信息，以及根据所述解码级别信息对所述比特流进行解码的音频解码器。因此，即使单个输入比特流也可以根据所使用的扬声器配置的类型被解码为适当数量的信道。可以通过对输入比特流进行部分解码来实现可扩展的信道解码。在可扩展信道解码中，解码器可以根据解码电平设置解码电平并输出音频信道信号，从而降低解码复杂度。

40. 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。

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