利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.014 秒)

    Method and an apparatus for identifying frame type
    1.
    发明授权
    Method and an apparatus for identifying frame type 有权

    公开(公告)号：US08214222B2

    公开(公告)日：2012-07-03

    申请号：US12437952

    申请日：2009-05-08

    申请人： Sang Bae Chon ,  Lae Hoon Kim ,  Koeng Mo Sung

    发明人： Sang Bae Chon ,  Lae Hoon Kim ,  Koeng Mo Sung

    IPC分类号： G10L19/00 ,  G10L11/06 ,  G10L19/02

    CPC分类号： G10L19/167 ,  G10L19/025

    摘要： A method for identifying a frame type is disclosed. The present invention includes receiving current frame type information, obtaining previously received previous frame type information, generating frame identification information of a current frame using the current frame type information and the previous frame type information, and identifying the current frame using the frame identification information.And, a method for identifying a frame type is disclosed. The present invention includes receiving a backward type bit corresponding to current frame type information, obtaining a forward type bit corresponding to previous frame type information, generating frame identification information of a current frame by placing the backward type bit at a first position and placing the forward type bit at a second position.

    METHOD AND AN APPARATUS FOR IDENTIFYING FRAME TYPE
    3.
    发明申请
    METHOD AND AN APPARATUS FOR IDENTIFYING FRAME TYPE 有权

    公开(公告)号：US20090306994A1

    公开(公告)日：2009-12-10

    申请号：US12463141

    申请日：2009-05-08

    申请人： Sang Bae CHON ,  Lae Hoon Kim ,  Koeng Mo Sung

    发明人： Sang Bae CHON ,  Lae Hoon Kim ,  Koeng Mo Sung

    IPC分类号： G10L19/00

    CPC分类号： G10L19/167 ,  G10L19/025

    摘要： A method for identifying a frame type is disclosed. The present invention includes receiving current frame type information, obtaining previously received previous frame type information, generating frame identification information of a current frame using the current frame type information and the previous frame type information, and identifying the current frame using the frame identification information.And, a method for identifying a frame type is disclosed. The present invention includes receiving a backward type bit corresponding to current frame type information, obtaining a forward type bit corresponding to previous frame type information, generating frame identification information of a current frame by placing the backward type bit at a first position and placing the forward type bit at a second position.

    Digital noise-shaping filter with real coefficients and method for making the same
    4.
    发明授权
    Digital noise-shaping filter with real coefficients and method for making the same 失效
    具有真实系数的数字噪声整形滤波器和制作相同的方法

    公开(公告)号：US06657572B2

    公开(公告)日：2003-12-02

    申请号：US10069340

    申请日：2002-05-07

    申请人： Ducksoo Lee ,  Yeongha Choi ,  Sejin Doo ,  Kyoungsoo Park ,  Koeng-Mo Sung

    发明人： Ducksoo Lee ,  Yeongha Choi ,  Sejin Doo ,  Kyoungsoo Park ,  Koeng-Mo Sung

    IPC分类号： H03M300

    CPC分类号： H03M7/3042 ,  H03M7/3028

    摘要： A digital noise-shaping filter with real coefficients for delta-sigma data converters used in a digital amplifier, 1-bit digital/analog converter, 1-bit analog/digital converter and the like, and a method for making the same. The present digital noise-shaping filter has improved noise suppression performance and system stability and reduced calculation complexity. To this end, the digital noise-shaping filter comprises a noise transfer function expressed by NTF(z)=−1+a1z−1+a2z−2+&Lgr;+aNz−N. The noise transfer function has optimum real coefficients or real coefficients approximating them.

    摘要翻译： 用于数字放大器，1位数/模转换器，1位模拟/数字转换器等的用于Δ-Σ数据转换器的实系数的数字噪声整形滤波器及其制造方法。 目前的数字噪声整形滤波器具有改善的噪声抑制性能和系统稳定性，降低了计算复杂度。 为此，数字噪声整形滤波器包括由NTF（z）= - 1 + a1z -1 + a2z + 2 + Lambda + aNz <-N>表示的噪声传递函数。 噪声传递函数具有最佳实数系数或逼近它们的实数。

    APPARATUS FOR ESTIMATING SOUND QUALITY OF AUDIO CODEC IN MULTI-CHANNEL AND METHOD THEREFOR
    9.
    发明申请
    APPARATUS FOR ESTIMATING SOUND QUALITY OF AUDIO CODEC IN MULTI-CHANNEL AND METHOD THEREFOR 审中-公开
    用于估计多通道中音频编解码器的声音质量的方法及其方法

    公开(公告)号：US20090171671A1

    公开(公告)日：2009-07-02

    申请号：US12278033

    申请日：2007-02-05

    申请人： Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  In-Yong Choi ,  Sang-Bae Chon ,  Koeng-Mo Sung

    发明人： Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  In-Yong Choi ,  Sang-Bae Chon ,  Koeng-Mo Sung

    IPC分类号： G10L21/00

    CPC分类号： G10L25/69 ,  G10L19/008

    摘要： There is an apparatus for evaluating the audio quality of a multi-channel audio codec, including: a preprocessing unit for synthesizing binaural signals based on multi-channel audio signals transmitted through a multi-channel of a multi-channel audio reproduction system; an output variable calculator for calculating an interaural cross-correlation coefficient distortion (IACCDist) and other output variables of the binaural signals; and an artificial neural network circuit for outputting a grade of the perceived quality based on the interaural cross-correlation coefficient distortion (IACCDist) and other output variables calculated in the output variable calculator.

    摘要翻译： 存在用于评估多声道音频编解码器的音频质量的装置，包括：基于通过多声道音频再现系统的多声道发送的多声道音频信号来合成双耳信号的预处理单元; 用于计算双耳信号的ural互相关系数失真（IACCDist）和其他输出变量的输出变量计算器; 以及用于基于在所述输出变量计算器中计算出的所述欧氏间相互相关系数失真（IACCDist）和其他输出变量来输出感知质量等级的人造神经网络电路。