会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Method and apparatus for encoding and decoding audio signal using layered sinusoidal pulse coding
    • 使用分层正弦脉冲编码对音频信号进行编码和解码的方法和装置
    • US08805680B2
    • 2014-08-12
    • US13321297
    • 2010-05-19
    • Mi-Suk LeeHeesik YangHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • Mi-Suk LeeHeesik YangHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • G10L19/02
    • G10L19/02G10L19/0212G10L19/24
    • Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.
    • 提供了一种用于对音频信号进行编码和解码的方法和装置。 一种对音频信号进行编码的方法包括接收经变换的音频信号,将变换的音频信号分成多个子带,对子带执行第一正弦脉冲编码操作,确定子带中的第二正弦脉冲编码操作的性能区域 基于第一正弦脉冲编码操作的编码信息,并对所确定的执行区域执行第二正弦脉冲编码操作,其中根据编码信息可变地执行第一正弦脉冲编码操作。 因此,通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码,可以进一步提高合成信号的质量。
    • 2. 发明授权
    • Method and apparatus for decoding audio signal
    • 用于解码音频信号的方法和装置
    • US09111535B2
    • 2015-08-18
    • US13011273
    • 2011-01-21
    • Heesik YangMi-Suk LeeHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • Heesik YangMi-Suk LeeHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • G10L21/02G10L19/093G10L19/24
    • G10L19/093G10L19/24
    • Provided are a method and an apparatus for decoding an audio signal. A method for decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses includes decoding the encoded audio signal, setting a smoothing frequency band of the decoded audio signal according to a layer structure of the layered sinusoidal pulse coding scheme, dividing the smoothing frequency band into one or more subbands, and smoothing the decoded audio signal on a subband-by-subband basis. Accordingly, a decoding operation time can be reduced and the quality of a synthesized signal can be improved by variably setting a frequency band to be smoothed, when decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses.
    • 提供了一种用于对音频信号进行解码的方法和装置。 一种使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码的方法包括解码编码音频信号,根据分层正弦脉冲编码方案的层结构设置解码音频信号的平滑频带 将平滑频带划分成一个或多个子带,并且以逐个子带为基础平滑解码的音频信号。 因此,当使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码时,可以通过可变地设置要平滑的频带来改善解码操作时间并且可以提高合成信号的质量。
    • 3. 发明申请
    • METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING
    • 使用层状SINUSOIDAL脉冲编码来编码和解码音频信号的方法和装置
    • US20120095754A1
    • 2012-04-19
    • US13321297
    • 2010-05-19
    • Mi-Suk LeeHeesik YangHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • Mi-Suk LeeHeesik YangHyun-Woo KimJongmo SungHyun-Joo BaeByung-Sun Lee
    • G10L19/02
    • G10L19/02G10L19/0212G10L19/24
    • Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.
    • 提供了一种用于对音频信号进行编码和解码的方法和装置。 一种对音频信号进行编码的方法包括接收经变换的音频信号,将变换的音频信号分成多个子带,对子带执行第一正弦脉冲编码操作,确定子带中的第二正弦脉冲编码操作的性能区域 基于第一正弦脉冲编码操作的编码信息,并对所确定的执行区域执行第二正弦脉冲编码操作,其中根据编码信息可变地执行第一正弦脉冲编码操作。 因此,通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码,可以进一步提高合成信号的质量。
    • 4. 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。
    • 5. 发明申请
    • Embedded code-excited linerar 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
    • US20060122830A1
    • 2006-06-08
    • 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。
    • 6. 发明申请
    • Apparatus and method for coding and decoding residual signal
    • 剩余信号编码和解码的装置和方法
    • US20060277040A1
    • 2006-12-07
    • US11441955
    • 2006-05-26
    • Jong-Mo SungHyun-Woo KimMi-Suk LeeDo-Young Kim
    • Jong-Mo SungHyun-Woo KimMi-Suk LeeDo-Young Kim
    • G10L19/00
    • 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。
    • 8. 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。