利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

156 条记录 (耗时 0.027 秒)

    Apparatus and method determining weighting function for linear prediction coding coefficients quantization
    1.
    发明授权
    Apparatus and method determining weighting function for linear prediction coding coefficients quantization 有权
    用于线性预测编码系数量化的装置和方法确定加权函数

    公开(公告)号：US09236059B2

    公开(公告)日：2016-01-12

    申请号：US13067370

    申请日：2011-05-26

    申请人： Ho Sang Sung ,  Eun Mi Oh

    发明人： Ho Sang Sung ,  Eun Mi Oh

    IPC分类号： G10L19/07

    CPC分类号： G10L19/06 ,  G10L19/032 ,  G10L19/07

    摘要： An apparatus determining a weighting function for line prediction coding coefficients quantization converts a linear prediction coding (LPC) coefficient of an input signal into one of a line spectral frequency (LSF) coefficient and an immitance spectral frequency (ISF) coefficient and determines a weighting function associated with one of an importance of the ISF coefficient and importance of the LSF coefficient using one of the converted ISF coefficient and the converted LSF coefficient.

    摘要翻译： 确定行预测编码系数量化的加权函数的装置将输入信号的线性预测编码（LPC）系数转换为线谱频率（LSF）系数和子频谱频率（ISF）系数之一，并确定加权函数 与ISF系数的重要性和LSF系数的重要性之一相关联，使用转换的ISF系数和转换的LSF系数之一。

    Apparatus and method for encoding and decoding signal for high frequency bandwidth extension
    2.
    发明授权
    Apparatus and method for encoding and decoding signal for high frequency bandwidth extension 有权
    用于对高频带宽扩展的信号进行编码和解码的装置和方法

    公开(公告)号：US09183847B2

    公开(公告)日：2015-11-10

    申请号：US13137779

    申请日：2011-09-12

    申请人： Ki Hyun Choo ,  Eun Mi Oh ,  Ho Sang Sung

    发明人： Ki Hyun Choo ,  Eun Mi Oh ,  Ho Sang Sung

    IPC分类号： G10L21/00 ,  G10L21/038 ,  G10L19/00

    CPC分类号： G10L19/12 ,  G10L19/00 ,  G10L19/038 ,  G10L19/24 ,  G10L21/038

    摘要： An apparatus and method for encoding and decoding a signal for high frequency bandwidth extension are provided. An encoding apparatus may down-sample a time domain input signal, may core-encode the down-sampled time domain input signal, may transform the core-encoded time domain input signal to a frequency domain input signal, and may perform bandwidth extension encoding using a basic signal of the frequency domain input signal.

    摘要翻译： 提供了一种用于编码和解码用于高频带宽扩展的信号的装置和方法。 编码装置可以对时域输入信号进行采样，可以对下采样的时域输入信号进行核编码，可以将核心编码的时域输入信号变换为频域输入信号，并且可以使用 频域输入信号的基本信号。

    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus
    4.
    发明授权
    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus 有权
    自适应时间和/或基于频率的编码模式确定装置和确定装置的编码模式的方法

    公开(公告)号：US08744841B2

    公开(公告)日：2014-06-03

    申请号：US11524274

    申请日：2006-09-21

    申请人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    发明人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    IPC分类号： G10L19/00

    CPC分类号： G10L19/0208 ,  G10L19/22

    摘要： An adaptive time/frequency-based encoding mode determination apparatus including a time domain feature extraction unit to generate a time domain feature by analysis of a time domain signal of an input audio signal, a frequency domain feature extraction unit to generate a frequency domain feature corresponding to each frequency band generated by division of a frequency domain corresponding to a frame of the input audio signal into a plurality of frequency domains, by analysis of a frequency domain signal of the input audio signal, and a mode determination unit to determine any one of a time-based encoding mode and a frequency-based encoding mode, with respect to the each frequency band, by use of the time domain feature and the frequency domain feature.

    摘要翻译： 一种自适应时间/频率编码模式确定装置，包括：时域特征提取单元，用于通过分析输入音频信号的时域信号来产生时域特征;频域特征提取单元，用于产生相应的频域特征; 通过对输入音频信号的频域信号的分析和模式确定单元来确定通过将与输入音频信号的帧相对应的频域划分成多个频域而产生的每个频带，以确定任何一个 基于时间的编码模式和基于频率的编码模式，通过使用时域特征和频域特征，相对于每个频带。

    Method and apparatus to multiplex and demultiplex asynchronous bitstreams
    8.
    发明授权
    Method and apparatus to multiplex and demultiplex asynchronous bitstreams 失效
    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。

    Method, medium, and apparatus encoding and/or decoding multichannel audio signals
    9.
    发明授权
    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.