利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

86 条记录 (耗时 0.031 秒)

    APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS
    2.
    发明申请
    APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS 有权
    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。

    Apparatus and method of encoding and decoding signals
    4.
    发明授权
    Apparatus and method of encoding and decoding signals 有权
    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。

    TRANSCODING METHOD AND APPARATUS
    6.
    发明申请
    TRANSCODING METHOD AND APPARATUS 审中-公开
    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。

    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same
    8.
    发明授权
    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
    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。

    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same
    9.
    发明授权
    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
    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：US08676569B2

    公开(公告)日：2014-03-18

    申请号：US13544203

    申请日：2012-07-09

    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： G10L19/00

    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。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO/SPEECH SIGNAL
    10.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO/SPEECH SIGNAL 有权
    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。