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    • 34. 发明授权
    • Embedded code-excited linear prediction speech coding and decoding apparatus and method
    • 嵌入式码激励线性预测语音编解码装置及方法
    • US08265929B2
    • 2012-09-11
    • US11297686
    • 2005-12-07
    • Mi-Suk LeeDo-Young KimJongMo SungHyun-Woo Kim
    • Mi-Suk LeeDo-Young KimJongMo SungHyun-Woo Kim
    • G10L19/02
    • G10L19/24G10L19/083G10L19/10
    • Provides is an embedded code-excited linear prediction speech coding/decoding apparatus and method that can deal with the capacity change of speech transmission channel by modeling an error signal not coded at a core speech coder based on a transmission rate in a multiple pulse search mode or gain compensation mode and then transmitting it in an optimum mode. The apparatus includes a core speech coding unit for coding an input speech signal with spectral envelop and an excitation signal, a transmission rate determination unit for allocating the number of bits additionally allowed depending on a capacity of a transmission channel, and an embedded excitation signal coding unit for coding a residual excitation signal that is not coded in the core speech coding unit based on the number of additionally allowed bits using one of a multiple pulse excitation coding mode and a gain compensation mode.
    • 提供一种嵌入式码激励线性预测语音编码/解码装置和方法,可以通过对基于多脉冲搜索模式中的传输速率的核心语音编码器对未编码的误差信号进行建模来处理语音传输信道的容量变化 或增益补偿模式,然后以最佳模式发送。 该装置包括:核心语音编码单元,用于对具有频谱包络和激励信号的输入语音信号进行编码;传输速率确定单元,用于根据传输信道的容量分配额外容许的比特数;以及嵌入式激励信号编码 用于使用多脉冲激励编码模​​式和增益补偿模式中的一种,基于使用附加允许位的数量来编码不在核心语音编码单元中编码的残余激励信号的单元。
    • 36. 发明授权
    • Method and system for transmitting and receiving data in a heterogeneous communication system
    • 用于在异构通信系统中发送和接收数据的方法和系统
    • US08134971B2
    • 2012-03-13
    • US12074306
    • 2008-03-03
    • Do-Young KimDong-Seek ParkHo-Kyu ChoiSung-Kwon Hong
    • Do-Young KimDong-Seek ParkHo-Kyu ChoiSung-Kwon Hong
    • H04W4/00
    • H04W36/0066
    • A method and system for transmitting/receiving data in a heterogeneous communication system. A terminal accesses a first controller of a first communication system supporting a first communication service to make a communication path to the first communication system. After making the communication path to the terminal, the first controller determines whether it is possible to provide the first communication service to the terminal over the first communication system. If it is not possible, the first controller transmits to an interworking unit a first request indicating that the terminal requires the first communication service over the second communication system. The interworking unit transmits a second request to a second controller of the second communication system in response to the first request, the second request indicating that the second controller provides the first communication service to the terminal. Upon receiving a response to the second request, the interworking unit controls the first controller to provide the first communication service to the terminal over the second communication system according to the response.
    • 一种用于在异构通信系统中发送/接收数据的方法和系统。 终端访问支持第一通信服务的第一通信系统的第一控制器,以建立到第一通信系统的通信路径。 在向终端发送通信路径之后,第一控制器确定是否可以通过第一通信系统向终端提供第一通信服务。 如果不可能,则第一控制器向交互单元发送指示终端在第二通信系统上需要第一通信服务的第一请求。 交互单元响应于第一请求向第二通信系统的第二控制器发送第二请求,第二请求指示第二控制器向终端提供第一通信服务。 在接收到对第二请求的响应时,交互单元控制第一控制器,以根据响应通过第二通信系统向终端提供第一通信服务。
    • 40. 发明授权
    • Apparatus and method for coding residual signals of audio signals into a frequency domain and apparatus and method for decoding the same
    • 将音频信号的残余信号编码成频域的装置和方法以及用于对其解码的装置和方法
    • US07599833B2
    • 2009-10-06
    • US11441955
    • 2006-05-26
    • Jong-Mo SungHyun-Woo KimMi-Suk LeeDo-Young Kim
    • Jong-Mo SungHyun-Woo KimMi-Suk LeeDo-Young Kim
    • G10L19/00G10L19/12
    • G10L21/038G10L19/0212G10L19/035G10L19/06G10L19/24
    • Provided is a residual signal coding/decoding apparatus and method. The residual signal coding apparatus includes a transformer, an LPC coefficient extractor, an LPC coefficient quantizer, an LP analysis filter, a band splitter, a pulse searcher, and a pulse quantizer. The transformer transforms time-domain residual signals into a frequency domain to output transform coefficients. The LPC coefficient extractor extracts LPC coefficients from the transform coefficients. The LPC coefficient quantizer quantizes the LPC coefficients to output quantized LPC coefficients and corresponding indices. The LP analysis filter performs an LP analysis on the transform coefficients to output LP residual transform coefficients. The band splitter splits the LP residual transform coefficients into bands to output the LP residual transform coefficients. The pulse searcher searches the LP residual transform coefficients for the respective bands to select optimal pulses and output parameters of the optimal pulses. The pulse quantizer quantizes the parameters of the optimal pulses.
    • 提供了一种残留信号编码/解码装置和方法。 残余信号编码装置包括变压器,LPC系数提取器,LPC系数量化器,LP分析滤波器,带分离器,脉冲搜索器和脉冲量化器。 变压器将时域残差信号变换为频域,输出变换系数。 LPC系数提取器从变换系数中提取LPC系数。 LPC系数量化器量化LPC系数以输出量化的LPC系数和相应的索引。 LP分析滤波器对变换系数执行LP分析以输出LP残差变换系数。 频带分离器将LP残差变换系数分解成频带以输出LP残差变换系数。 脉冲搜索器搜索各个频带的LP残差变换系数,以选择最佳脉冲和最佳脉冲的输出参数。 脉冲量化器对最佳脉冲的参数进行量化。