Efficient temporal envelope coding approach by prediction between low band signal and high band signal
    31.
    发明授权
    Efficient temporal envelope coding approach by prediction between low band signal and high band signal 有权
    低频信号与高频信号之间的预测有效的时间包络编码方法

    公开(公告)号:US08352279B2

    公开(公告)日:2013-01-08

    申请号:US12554868

    申请日:2009-09-04

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: G10L19/00

    摘要: This invention proposes a more efficient way to quantize temporal envelope shaping of high band signal by benefiting from energy relationship between low band signal and high band signal; if low band signal is well coded or it is coded with time domain codec such as CELP, temporal envelope shaping information of low band signal can be used to predict temporal envelope shaping of high band signal; the temporal envelope shaping prediction can bring significant saving of bits to precisely quantize temporal envelope shaping of high band signal. This prediction approach can be combined with other specific approach to further increase the efficiency and save mores bits.

    摘要翻译: 本发明提出了一种更有效的方式,通过受益于低频带信号和高频带信号之间的能量关系来量化高频带信号的时间包络整形; 如果低频带信号被良好编码,或者用诸如CELP的时域编解码器编码,则可以使用低频带信号的时间包络整形信息来预测高频带信号的时间包络整形; 时间包络整形预测可以显着节省位以精确量化高频带信号的时间包络整形。 这种预测方法可以与其他具体方法结合起来,以进一步提高效率并节省毛利位。

    Packet Loss Concealment for Speech Coding
    32.
    发明申请
    Packet Loss Concealment for Speech Coding 有权
    语音编码的丢包隐藏

    公开(公告)号:US20120323567A1

    公开(公告)日:2012-12-20

    申请号:US13194982

    申请日:2011-07-31

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: G10L19/00

    摘要: A speech coding method of significantly reducing error propagation due to voice packet loss, while still greatly profiting from a pitch prediction or Long-Term Prediction (LTP), is achieved by limiting or reducing a pitch gain only for the first subframe or the first two subframes within a speech frame. The method is used for a voiced speech class; a pitch cycle length is compared to a subframe size to decide to reduce the pitch gain for the first subframe or the first two subframes within the frame. Speech coding quality loss due to the pitch gain reduction is compensated by increasing a bit rate of a second excitation component or adding one more stage of excitation component only for the first subframe or the first two subframes within the speech frame.

    摘要翻译: 通过仅对第一个子帧或第一个子帧限制或减小音调增益,实现了通过语音分组丢失而显着减少误差传播的语音编码方法,同时仍然通过音调预测或长期预测(LTP)获得极大的利益 语音帧内的子帧。 该方法用于有声语音类; 将音调周期长度与子帧尺寸进行比较,以决定减小帧内第一子帧或前两个子帧的音调增益。 通过增加第二激励分量的比特率或仅为语音帧内的第一子帧或前两个子帧增加一级激励分量来补偿由于音调增益减小引起的语音编码质量损失。

    METHOD OF FORMING A HYBRID SPLIT GATE SIMICONDUCTOR
    33.
    发明申请
    METHOD OF FORMING A HYBRID SPLIT GATE SIMICONDUCTOR 审中-公开
    形成混合隔离栅智能体的方法

    公开(公告)号:US20120220092A1

    公开(公告)日:2012-08-30

    申请号:US13460600

    申请日:2012-04-30

    IPC分类号: H01L21/336 H01L21/28

    摘要: Method of forming a Hybrid Split Gate Semiconductor. In accordance with a method embodiment of the present invention, a plurality of first trenches is formed in a semiconductor substrate to a first depth. A plurality of second trenches is formed in the semiconductor substrate to a second depth. The first plurality of trenches are parallel with the second plurality of trenches. The trenches of the plurality of first trenches alternate with and are adjacent to trenches of the plurality of second trenches.

    摘要翻译: 形成混合分离栅极半导体的方法。 根据本发明的方法实施例,在半导体衬底中形成多个第一沟槽至第一深度。 多个第二沟槽在半导体衬底中形成第二深度。 第一多个沟槽与第二多个沟槽平行。 多个第一沟槽的沟槽与多个第二沟槽的沟槽交替并与之相邻。

    HYBRID SPLIT GATE SEMICONDUCTOR
    34.
    发明申请
    HYBRID SPLIT GATE SEMICONDUCTOR 审中-公开
    混合分离栅极半导体

    公开(公告)号:US20120211828A1

    公开(公告)日:2012-08-23

    申请号:US13460567

    申请日:2012-04-30

    IPC分类号: H01L29/78

    摘要: In an embodiment in accordance with the present invention, a semiconductor device includes a vertical channel region, a gate at a first depth on a first side of the vertical channel region, a shield electrode at a second depth on the first side of the vertical channel region, and a hybrid gate at the first depth on a second side of the vertical channel region. The region below the hybrid gate on the second side of the vertical channel region is free of any electrodes.

    摘要翻译: 在根据本发明的实施例中,半导体器件包括垂直沟道区,垂直沟道区的第一侧的第一深度处的栅极,垂直沟道第一侧上的第二深度处的屏蔽电极 区域,以及在垂直沟道区域的第二侧上的第一深度处的混合栅极。 在垂直沟道区的第二侧上的混合栅极下面的区域没有任何电极。

    Method and apparatus for improved weighting filters in a CELP encoder
    35.
    再颁专利
    Method and apparatus for improved weighting filters in a CELP encoder 有权
    用于改进CELP编码器中加权滤波器的方法和装置

    公开(公告)号:USRE43570E1

    公开(公告)日:2012-08-07

    申请号:US12157945

    申请日:2008-06-13

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: G10L19/12

    CPC分类号: G10L19/12

    摘要: A method of speech encoding comprises generating a first synthesized speech signal from a first excitation signal, weighting the first synthesized speech signal using a first error weighting filter to generate a first weighted speech signal, generating a second synthesized speech signal from a second excitation signal, weighting the second synthesized speech signal using a second error weighting filter to generate a second weighted speech signal, and generating an error signal using the first weighted speech signal and the second weighted speech signal, wherein the first error weighting filter is different from the second error weighting filter. The method may further generate the error signal by weighting the speech signal using a third error weighting filter to generate a third weighted speech signal, and subtracting the first weighted speech signal and the second weighted speech signal from the third weighted speech signal to generate the error signal.

    摘要翻译: 语音编码方法包括从第一激励信号产生第一合成语音信号,使用第一误差加权滤波器对第一合成语音信号进行加权,以产生第一加权语音信号,从第二激励信号产生第二合成语音信号, 使用第二误差加权滤波器对所述第二合成语音信号进行加权,以产生第二加权语音信号,以及使用所述第一加权语音信号和所述第二加权语音信号生成误差信号,其中所述第一误差加权滤波器不同于所述第二误差 加权滤波器 该方法还可以通过使用第三误差加权滤波器对语音信号进行加权来生成误差信号,以产生第三加权语音信号,并从第三加权语音信号中减去第一加权语音信号和第二加权语音信号以产生误差 信号。

    Method and System for Media Modification
    36.
    发明申请
    Method and System for Media Modification 有权
    媒体修改方法与系统

    公开(公告)号:US20120172069A1

    公开(公告)日:2012-07-05

    申请号:US13389962

    申请日:2010-05-24

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: H04W4/20 H04W4/12

    摘要: The present invention discloses a method and system for media modification, which is used for solving the problem that it is not considered during media modification whether the user confirmation or precondition of media modification is required, thereby resulting in technical defects, such as possible bearing resource embezzlement, producing redundancy, etc. The present invention regards the 200OK message of Re-INVITE as the confirmed time point of the media addition and/or modification; in the case that there is a precondition and the user confirmation is not required, the time point when the precondition is satisfied is regarded as the confirmed time point of the media component addition and/or existing media component modification; in the case that there is a precondition and the user confirmation is required, the 200OK response message of the Re-INVITE message is regarded as the confirmed time point of the media component addition and/or existing media component modification.

    摘要翻译: 本发明公开了一种用于媒体修改的方法和系统,其用于解决在媒体修改期间不考虑的问题,是否需要用户确认或改变媒体的前提,从而导致技术缺陷,例如可能的承载资源 贪污,产生冗余等。本发明将Re-INVITE的200OK消息作为媒体添加和/或修改的确定时间点; 在存在前提条件并且不需要用户确认的情况下,将满足前提条件的时间点视为介质成分添加和/或现有媒体部件修改的确定时间点; 在存在前提条件并且需要用户确认的情况下,Re-INVITE消息的200OK响应消息被认为是媒体组件添加和/或现有媒体组件修改的确认时间点。

    Method and application server for obtaining the users' capability in third party call control
    37.
    发明申请
    Method and application server for obtaining the users' capability in third party call control 审中-公开
    用于获取用户第三方呼叫控制能力的方法和应用服务器

    公开(公告)号:US20120163579A1

    公开(公告)日:2012-06-28

    申请号:US13258381

    申请日:2010-06-21

    IPC分类号: H04M3/42

    摘要: The present disclosure provides a method and an Application Server (AS) for obtaining user's capability in Third Party Call Control (3PCC), and the method comprises: when a user performs 3PCC, an AS stores the media information of the user; the AS performs media negotiation with the user according to the stored media information of the user. The application of the present disclosure solves the problem of the high failure probability of media negotiation caused by the current incorrect method for obtaining the user's media capability, and improves the utilization experience of users.

    摘要翻译: 本公开提供了一种用于在第三方呼叫控制(3PCC)中获取用户能力的方法和应用服务器(AS),该方法包括:当用户执行3PCC时,AS存储用户的媒体信息; AS根据用户的存储的媒体信息与用户进行媒体协商。 本公开的应用解决了当前用于获取用户媒体能力的不正确方法引起的媒体协商故障概率高的问题,提高了用户的使用体验。

    Decoder with embedded silence and background noise compression
    38.
    发明授权
    Decoder with embedded silence and background noise compression 有权
    解码器具有嵌入式静音和背景噪声压缩

    公开(公告)号:US08195450B2

    公开(公告)日:2012-06-05

    申请号:US13199794

    申请日:2011-09-08

    IPC分类号: G10L21/00 G10L11/06

    摘要: There is provided a method for use by a speech encoder to encode an input speech signal. The method comprises receiving the input speech signal; determining whether the input speech signal includes an active speech signal or an inactive speech signal; low-pass filtering the inactive speech signal to generate a narrowband inactive speech signal; high-pass filtering the inactive speech signal to generate a high-band inactive speech signal; encoding the narrowband inactive speech signal using a narrowband inactive speech encoder to generate an encoded narrowband inactive speech; generating a low-to-high auxiliary signal by the narrowband inactive speech encoder based on the narrowband inactive speech signal; encoding the high-band inactive speech signal using a wideband inactive speech encoder to generate an encoded wideband inactive speech based on the low-to-high auxiliary signal from the narrowband inactive speech encoder; and transmitting the encoded narrowband inactive speech and the encoded wideband inactive speech.

    摘要翻译: 提供了一种由语音编码器用于对输入语音信号进行编码的方法。 该方法包括接收输入语音信号; 确定所述输入语音信号是否包括活动语音信号或无效语音信号; 低通滤波无效语音信号以产生窄带无效语音信号; 高通滤波无效语音信号以产生高频带无效语音信号; 使用窄带无源语音编码器对窄带无源语音信号进行编码,以生成编码窄带无效语音; 基于窄带无效语音信号,由窄带无源语音编码器生成低到高的辅助信号; 使用宽带无源语音编码器对高频带无效语音信号进行编码,以根据来自窄带无源语音编码器的低到高辅助信号产生编码的宽带无效语音; 以及发送编码的窄带无效语音和编码的宽带无效语音。

    Speech post-processing using MDCT coefficients
    39.
    发明授权
    Speech post-processing using MDCT coefficients 有权
    使用MDCT系数进行语音后处理

    公开(公告)号:US08095360B2

    公开(公告)日:2012-01-10

    申请号:US12460428

    申请日:2009-07-17

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: G10L19/14

    摘要: There is provided a method of post-processing a speech signal. The method comprises applying a time-domain post-processing to the speech signal, using LPC coefficients, for a low-band frequency range and applying a frequency-domain post-processing to the speech signal, using MDCT coefficients, for the high-band frequency range. Applying the frequency-domain post-processing includes decoding an encoded speech signal to obtain MDCT coefficients representative of the speech signal divided into a plurality of sub-bands, generating an envelope for each sub-band of the plurality of sub-bands as an average magnitude of the MDCT coefficients of the sub-band, generating an envelope modification factor for each sub-band of the plurality of sub-band using the MDCT coefficients of the sub-band, modifying the envelope by the envelope modification factor for each sub-band of the plurality of sub-bands to provide a modified envelope, and generating the post-processed speech signal using the modified envelope.

    摘要翻译: 提供了一种后处理语音信号的方法。 该方法包括:使用LPC系数对语音信号应用时域后处理用于低频带频率范围,并使用MDCT系数对高频带应用对语音信号的频域后处理 频率范围。 应用频域后处理包括对编码的语音信号进行解码,以获得表示分成多个子带的语音信号的MDCT系数,为多个子带中的每个子带生成包络作为平均值 使用子带的MDCT系数产生子带的MDCT系数的幅度,使用子带的MDCT系数为每个子带的每个子带生成包络修正因子,通过每个子带的包络修正因子修改包络, 以提供修改的包络,以及使用修改的包络生成后处理语音信号。

    Bandwidth Extension System and Approach
    40.
    发明申请
    Bandwidth Extension System and Approach 有权
    带宽扩展系统和方法

    公开(公告)号:US20110257980A1

    公开(公告)日:2011-10-20

    申请号:US13086956

    申请日:2011-04-14

    申请人: Yang Gao

    发明人: Yang Gao

    IPC分类号: G10L19/00

    摘要: A method of performing BandWidth Extension (BWE) includes a frequency band shifting approach to generate an extended high band signal in time domain and a gain determination approach of controlling the energy of the extended high band. The proposed approach allows shifting any size of low band to any size of high band. The BWE scaling gain is estimated by using available filter bank coefficients with extremely low bit rate or without costing any bit, combining three possible gain factors.

    摘要翻译: 执行带宽扩展(BWE)的方法包括:在时域中生成扩展高频带信号的频带移位方法以及控制扩展高频带的能量的增益确定方法。 所提出的方法允许将任何大小的低频带移动到任何大小的高频段。 通过使用具有极低比特率的可用滤波器组系数或者不考虑任何比特来组合三个可能的增益因子来估计BWE缩放增益。