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31. 发明申请

US20080270124A1 METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO/SPEECH SIGNAL 有权
标题翻译：编码和解码音频/语音信号的方法和装置
公开(公告)号：US20080270124A1
公开(公告)日：2008-10-30
申请号：US11872116
申请日：2007-10-15
申请人： Chang-yong SON , Eun-mi Oh , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee , Ki-hyun Choo
发明人： Chang-yong SON , Eun-mi Oh , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee , Ki-hyun Choo
IPC分类号： G10L21/00
CPC分类号： G10L19/00 , G10L19/025
摘要： Provided is a method of encoding an audio/speech signal, the method including determining a variable length of a frame, that is, a processing unit of an input signal in accordance with a position of an attack in the input signal; transforming each frame of the input signal to a frequency domain and dividing the frame into a plurality of sub frequency bands; and, if a signal of a sub frequency band is determined to be encoded in the frequency domain, encoding the signal of the sub frequency band in the frequency domain, and if the signal of the sub frequency band is determined to be encoded in a time domain, inverse transforming the signal of the sub frequency band to the time domain and encoding the inverse transformed signal in the time domain. According to the present invention, the audio/speech signal may be efficiently encoded by controlling time resolution and frequency resolution.
摘要翻译：提供了一种对音频/语音信号进行编码的方法，该方法包括根据输入信号中的攻击位置来确定帧的可变长度，即输入信号的处理单元; 将所述输入信号的每个帧变换为频域并将所述帧划分为多个子频带; 并且如果确定在频域中编码子频带的信号，则对频域中的子频带的信号进行编码，并且如果确定子频带的信号被编码在一个时间域，将子频带的信号逆变换到时域，并对时域中的逆变换信号进行编码。根据本发明，可以通过控制时间分辨率和频率分辨率来有效地编码音频/语音信号。

32. 发明申请

US20080147414A1 METHOD AND APPARATUS TO DETERMINE ENCODING MODE OF AUDIO SIGNAL AND METHOD AND APPARATUS TO ENCODE AND/OR DECODE AUDIO SIGNAL USING THE ENCODING MODE DETERMINATION METHOD AND APPARATUS 审中-公开
标题翻译：用于确定音频信号编码模式的方法和装置以及使用编码模式确定方法和装置来编码和/或解码音频信号的方法和装置
公开(公告)号：US20080147414A1
公开(公告)日：2008-06-19
申请号：US11939074
申请日：2007-11-13
申请人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee
发明人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee
IPC分类号： G10L19/06
CPC分类号： G10L19/20 , G10L25/78
摘要： A method and apparatus to determine an encoding mode of an audio signal, and a method and apparatus to encode an audio signal according to the encoding mode. In the encoding mode determination method, a mode determination threshold for the current frame that is subject to encoding mode determination is adaptively adjusted according to a long-term feature of the audio signal for a frame (the current frame) that is subject to encoding mode determination, thereby improving the hit rate of encoding mode determination and signal classification, suppressing frequent oscillation of an encoding mode in frame units, improving noise tolerance, and improving smoothness of a reconstructed audio signal.
摘要翻译：一种确定音频信号的编码模式的方法和装置，以及根据编码模式对音频信号进行编码的方法和装置。在编码模式确定方法中，根据用于编码模式的帧（当前帧）的音频信号的长期特征，自适应地调整用于进行编码模式确定的当前帧的模式确定阈值确定，从而提高编码模式确定和信号分类的命中率，以帧为单位抑制编码模式的频繁振荡，提高噪声容限并提高重构音频信号的平滑度。

33. 发明申请

US20080140428A1 METHOD AND APPARATUS TO ENCODE AND/OR DECODE BY APPLYING ADAPTIVE WINDOW SIZE 审中-公开
标题翻译：通过应用自适应窗口大小来编码和/或解码的方法和装置
公开(公告)号：US20080140428A1
公开(公告)日：2008-06-12
申请号：US11949925
申请日：2007-12-04
申请人： Ki-hyun Choo , Eun-mi Oh , Chang-yong Son , Jung-hoe Kim
发明人： Ki-hyun Choo , Eun-mi Oh , Chang-yong Son , Jung-hoe Kim
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/022
摘要： An apparatus to process an audio signal includes an encoder to determine a variable window size of sub bands of a frame of an audio signal, to transform the sub bands according to the variable window size from a first domain to a second domain, to quantize the transformed sub bands, and to multiplex the quantized sub bands and information on the variable window size corresponding the respective sub bands.
摘要翻译：一种用于处理音频信号的装置包括：编码器，用于确定音频信号的帧的子频带的可变窗口大小，以便根据可变窗口尺寸从第一域到第二域变换子带，以量化并且对量化的子带和关于对应于各个子带的可变窗口大小的信息进行多路复用。

34. 发明申请

US20080015869A1 Method, medium, and apparatus encoding and/or decoding extension data for surround 有权
标题翻译：用于环绕的方法，介质和装置编码和/或解码扩展数据
公开(公告)号：US20080015869A1
公开(公告)日：2008-01-17
申请号：US11826168
申请日：2007-07-12
申请人： Jung-hoe Kim , Eun-mi Oh
发明人： Jung-hoe Kim , Eun-mi Oh
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/167 , H04S3/02
摘要： A method, medium, and apparatus encoding and/or decoding an audio signal to surround data. While encoding spatial information, which can up-mix an audio signal to a surround signal, to extension data, a length of a payload corresponding to the spatial information is encoded and a payload of the spatial information is decoded using the length of the payload. Accordingly, compatibility of the spatial information can be provided, and the spatial information can be transmitted by effectively embedding the spatial information.
摘要翻译：编码和/或解码音频信号以包围数据的方法，介质和装置。在将可将音频信号上调到环绕信号的空间信息编码到扩展数据的同时，对与空间信息相对应的有效载荷的长度进行编码，并且使用有效载荷的长度对空间信息的有效载荷进行解码。因此，可以提供空间信息的兼容性，并且可以通过有效地嵌入空间信息来发送空间信息。

35. 发明申请

US20140149124A1 APPARATUS, MEDIUM AND METHOD TO ENCODE AND DECODE HIGH FREQUENCY SIGNAL 审中-公开
标题翻译：装置，介质和编码和解码高频信号的方法
公开(公告)号：US20140149124A1
公开(公告)日：2014-05-29
申请号：US13684879
申请日：2012-11-26
申请人： Ki-hyun Choo , Eun-mi Oh , Ho-sang Sung , Jung-hoe Kim , Mi-young Kim
发明人： Ki-hyun Choo , Eun-mi Oh , Ho-sang Sung , Jung-hoe Kim , Mi-young Kim
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/0204 , G10L19/028
摘要： A method and apparatus to encoding or decoding an audio signal is provided. In the method and apparatus, a noise-floor level to use in encoding or decoding a high frequency signal is updated according to the degree of a voiced or unvoiced sound included in the signal.
摘要翻译：提供了一种对音频信号进行编码或解码的方法和装置。在该方法和装置中，根据信号中包含的有声或无声音的程度来更新用于对高频信号进行编码或解码的噪声底层电平。

36. 发明授权

US08719653B2 Frame error concealment method and apparatus and decoding method and apparatus using the same 有权
公开(公告)号：US08719653B2
公开(公告)日：2014-05-06
申请号：US11935600
申请日：2007-11-06
申请人： Ho-sang Sung , Kang-eun Lee , Jung-hoe Kim , Eun-mi Oh
发明人： Ho-sang Sung , Kang-eun Lee , Jung-hoe Kim , Eun-mi Oh
IPC分类号： G06F11/00 , H04L1/00
摘要： A frame error concealment method and apparatus and a decoding method and apparatus using the same. The frame error concealment method includes setting a concealment method to conceal an error based on one or more signal characteristics of an error frame having the error and concealing the error using the set concealment method.

37. 发明授权

US08615021B2 Method and apparatus to multiplex and demultiplex asynchronous bitstreams 失效
标题翻译：用于复用和解复用异步比特流的方法和装置
公开(公告)号：US08615021B2
公开(公告)日：2013-12-24
申请号：US13417419
申请日：2012-03-12
申请人： Kang-eun Lee , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh
发明人： Kang-eun Lee , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh
IPC分类号： H04J3/16
CPC分类号： H04N21/4341 , H04N21/233 , H04N21/236 , H04N21/2368 , H04N21/434 , H04N21/439
摘要： Provided is a method and apparatus to multiplex bitstreams that are coded to have different frame lengths using asynchronous time alignment, in which, based on the length of each frame of a bitstream selected as a reference bitstream from among bitstreams coded to have different frame lengths by a plurality of coders, the remaining bitstreams except for the reference bitstream are divided and multiplexed.
摘要翻译：提供了一种用于使用异步时间对准来复用被编码为具有不同帧长度的比特流的方法和装置，其中基于从被编码为具有不同帧长度的比特流中选择作为参考比特流的比特流的每个帧的长度被多个编码器，除了参考比特流之外的剩余比特流被分割和多路复用。

38. 发明授权

US08571875B2 Method, medium, and apparatus encoding and/or decoding multichannel audio signals 有权
公开(公告)号：US08571875B2
公开(公告)日：2013-10-29
申请号：US11907398
申请日：2007-10-11
申请人： Jung-hoe Kim , Eun-mi Oh
发明人： Jung-hoe Kim , Eun-mi Oh
IPC分类号： G10L19/00 , G10L21/04 , G10L11/00 , G10L21/00
CPC分类号： G10L19/008 , G10L19/00
摘要： A method, medium, and apparatus encoding and/or decoding a multichannel audio signal. The method includes detecting the type of spatial extension data included in an encoding result of an audio signal, if the spatial extension data is data indicating a core audio object type related to a technique of encoding core audio data, detecting the core audio object type; decoding core audio data by using a decoding technique according to the detected core audio object type, if the spatial extension data is residual coding data, decoding the residual coding data by using the decoding technique according to the core audio object type, and up-mixing the decoded core audio data by using the decoded residual coding data. According to the method, the core audio data and residual coding data may be decoded by using an identical decoding technique, thereby reducing complexity at the decoding end.

39. 发明授权

US08428958B2 Apparatus and method of encoding and decoding signals 有权
标题翻译：信号编码和解码的装置和方法
公开(公告)号：US08428958B2
公开(公告)日：2013-04-23
申请号：US12246570
申请日：2008-10-07
申请人： Ho-sang Sung , Eun-mi Oh , Jung-hoe Kim , Ki-hyun Choo , Mi-young Kim
发明人： Ho-sang Sung , Eun-mi Oh , Jung-hoe Kim , Ki-hyun Choo , Mi-young Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/002 , G10L19/00 , G10L19/18
摘要： A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.
摘要翻译：一种编码音频信号的方法，其中包括两个或更多个信道信号的信号被下混合到单声道信号，单声道信号被分为低频信号和高频信号，低频信号通过代数代码激励线性预测（ACELP）或变换编码激励（TCX），并且使用低频信号对高频信号进行编码。解码音频信号的方法，通过ACELP或TCX编码的低频信号进行解码，使用低频信号对低频信号进行解码，将低频信号和高频信号合成为产生单声道信号，并且单声道信号通过解码关于包括两个或更多个声道信号的信号的空间参数来混合。

40. 发明申请

US20120134501A1 METHOD AND APPARATUS FOR ENCODING AND DECODING STEREO SIGNAL AND MULTI-CHANNEL SIGNAL 有权
标题翻译：编码和解码立体信号和多信道信号的方法和装置
公开(公告)号：US20120134501A1
公开(公告)日：2012-05-31
申请号：US13366455
申请日：2012-02-06
申请人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Boris Kudryashov , Sergey Petrov
发明人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Boris Kudryashov , Sergey Petrov
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04H20/88 , H04H20/89 , H04S3/00 , H04S2420/03
摘要： Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be encoded and/or decoded by generating parameters based on a mono signal.
摘要翻译：提供了一种用于对立体声信号或多声道信号进行编码和解码的方法和装置。根据该方法和装置，可以通过基于单声道信号产生参数来对立体声信号或多声道信号进行编码和/或解码。

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