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1. 发明授权

US08321229B2 Apparatus, medium and method to encode and decode high frequency signal 有权
标题翻译：装置，介质和方法对高频信号进行编码和解码
公开(公告)号：US08321229B2
公开(公告)日：2012-11-27
申请号：US12256704
申请日：2008-10-23
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： G06F15/00 , G10L19/00 , G10L21/00
CPC分类号： G10L25/93 , G10L21/038
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。

2. 发明申请

US20090006081A1 METHOD, MEDIUM AND APPARATUS FOR ENCODING AND/OR DECODING SIGNAL 审中-公开
标题翻译：用于编码和/或解码信号的方法，介质和装置
公开(公告)号：US20090006081A1
公开(公告)日：2009-01-01
申请号：US12033342
申请日：2008-02-19
申请人： Eun-mi OH , Ho-sang Sung , Ki-hyun Choo , Jung-hoe Kim , Mi-young Kim
发明人： Eun-mi OH , Ho-sang Sung , Ki-hyun Choo , Jung-hoe Kim , Mi-young Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/008 , G10L19/0208 , G10L19/025 , G10L19/167 , G10L19/20 , G10L19/24
摘要： Provided are a method and apparatus for encoding or decoding an audio signal or a speech signal. In the encoding method, encoding is performed by performing domain transformation on a received signal in units of frequency bands by applying a psychoacoustic model, encoding the transformation result with respect to predetermined one or more frequency bands by using a high temporal resolution coding tool, and then quantizing the encoding result. In the decoding method, decoding is performed by inversely quantizing signals obtained by encoding in units of frequency bands, decoding one or more signals from among the inversely quantized signals, which are allocated to one or more frequency bands which have a predetermined domain resolution, determined by applying the psychoacoustic model, that is greater than a predetermined value, according to a predetermined method, and then inversely transforming either the inversely quantized or the one or more decoded signals.
摘要翻译：提供了一种用于对音频信号或语音信号进行编码或解码的方法和装置。在编码方法中，通过使用心理声学模型，通过使用高时间分辨率编码工具对相对于预定的一个或多个频带进行变换结果的编码，对以频带为单位的接收信号进行域变换来进行编码，以及然后量化编码结果。在解码方法中，通过对由频带单位进行编码而得到的信号进行逆量化，对从量化后的信号中分离的一个以上的信号进行解码，分解成具有规定的域分辨率的一个以上的频带，通过应用根据预定方法大于预定值的心理声学模型，然后逆向变换反量化或一个或多个解码信号。

3. 发明申请

US20090210234A1 APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS 有权
标题翻译：编码和解码信号的装置和方法
公开(公告)号：US20090210234A1
公开(公告)日：2009-08-20
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。

4. 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。

5. 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。

6. 发明申请

US20090110208A1 APPARATUS, MEDIUM AND METHOD TO ENCODE AND DECODE HIGH FREQUENCY SIGNAL 有权
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：US20090110208A1
公开(公告)日：2009-04-30
申请号：US12256704
申请日：2008-10-23
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： H03B29/00
CPC分类号： G10L25/93 , G10L21/038
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。

7. 发明申请

US20090037180A1 TRANSCODING METHOD AND APPARATUS 审中-公开
标题翻译： TRANSCODING方法和装置
公开(公告)号：US20090037180A1
公开(公告)日：2009-02-05
申请号：US11947016
申请日：2007-11-29
申请人： Mi-young Kim , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
发明人： Mi-young Kim , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/0204 , G10L19/173
摘要： Provided is a method and apparatus for encoding a bitstream, which was encoded by a predetermined method, in another method. By adaptively encoding a bitstream encoded by a predetermined method by selecting a domain in which the encoding is performed for each predetermined band, the bitstream can be efficiently encoded and transmitted and received, and compatibility can be provided.
摘要翻译：提供了一种用于通过另一种方法对通过预定方法编码的比特流进行编码的方法和装置。通过对通过选择对每个预定频带执行编码的域来自适应地编码由预定方法编码的比特流，可以有效地编码和发送和接收比特流，并且可以提供兼容性。

8. 发明授权

US08712782B2 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 有权
公开(公告)号：US08712782B2
公开(公告)日：2014-04-29
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： G10L21/00 , G10L19/22 , G10L19/00 , G10L19/005 , G10L19/02 , G10L19/18
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.

9. 发明授权

US08219393B2 Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
标题翻译：用于音频信号的错误隐藏方法和装置以及使用其的音频信号的解码方法和装置
公开(公告)号：US08219393B2
公开(公告)日：2012-07-10
申请号：US11930752
申请日：2007-10-31
申请人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
发明人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
IPC分类号： G10L21/00
CPC分类号： G10L19/005 , G10L19/0212 , G10L19/022 , H03M13/00
摘要： An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.
摘要翻译：一种用于音频信号的错误隐藏方法和装置，以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。错误隐藏方法包括：当在当前帧中发生错误时，基于预定标准，选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案，选择重复方案和在频域中的内插方案作为当前帧的错误隐藏方案，当选择频域中的错误隐藏时，基于预定标准，并且使用所选择的方案来隐藏当前帧的错误。

10. 发明申请

US20070271480A1 METHOD AND APPARATUS TO CONCEAL ERROR IN DECODED AUDIO SIGNAL 有权
标题翻译：解码音频信号中的隐含错误的方法和装置
公开(公告)号：US20070271480A1
公开(公告)日：2007-11-22
申请号：US11749249
申请日：2007-05-16
申请人： Eun-mi OH , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
发明人： Eun-mi OH , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G06F11/00
CPC分类号： G10L19/005
摘要： A method and apparatus to decode audio data constructed with a plurality of layers. An error concealment method of process a decoded bitstream selects one of a frequency domain and a time domain in order to conceal the errors, detects a position where the errors exist in a frame when the error concealment method in the frequency domain is selected, and conceals the errors only in a segment after the detected position.
摘要翻译：一种解码由多层构成的音频数据的方法和装置。处理解码比特流的错误隐藏方法选择频域和时域中的一个以隐藏错误，当选择频域中的错误隐藏方法时，检测在帧中存在错误的位置，并且隐藏检测到位置之后的错误。

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