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    Noise robust speech classifier ensemble
    72.
    发明授权
    Noise robust speech classifier ensemble 有权
    噪声鲁棒的语音分类器集合

    公开(公告)号：US08412525B2

    公开(公告)日：2013-04-02

    申请号：US12433143

    申请日：2009-04-30

    Applicant: Kunal Mukerjee ,  Kazuhito Koishida ,  Shankar Regunathan

    Inventor： Kunal Mukerjee ,  Kazuhito Koishida ,  Shankar Regunathan

    IPC: G10L15/04 ,  G10L15/20 ,  G06F17/30

    CPC classification number: G10L15/142 ,  G10L15/16 ,  G10L15/197 ,  G10L15/20 ,  G10L21/0208 ,  G10L21/0216 ,  G10L25/18 ,  G10L25/93

    Abstract: Embodiments for implementing a speech recognition system that includes a speech classifier ensemble are disclosed. In accordance with one embodiment, the speech recognition system includes a classifier ensemble to convert feature vectors that represent a speech vector into log probability sets. The classifier ensemble includes a plurality of classifiers. The speech recognition system includes a decoder ensemble to transform the log probability sets into output symbol sequences. The speech recognition system further includes a query component to retrieve one or more speech utterances from a speech database using the output symbol sequences.

    Abstract translation: 公开了实现包括语音分类器集合的语音识别系统的实施例。 根据一个实施例，语音识别系统包括将表示语音向量的特征向量转换为对数概率集的分类器集合。 分类器集合包括多个分类器。 语音识别系统包括将对数概率集合变换为输出符号序列的解码器集合。 该语音识别系统还包括一个查询组件，用于使用输出符号序列从语音数据库中检索一个或多个语音话语。

    SOUND SOURCE LOCALIZATION USING PHASE SPECTRUM
    73.
    发明申请
    SOUND SOURCE LOCALIZATION USING PHASE SPECTRUM 有权
    使用相位谱的声源定位

    公开(公告)号：US20130016852A1

    公开(公告)日：2013-01-17

    申请号：US13182449

    申请日：2011-07-14

    Applicant: Shankar Regunathan ,  Kazuhito Koishida ,  Harshavardhana Narayana Kikkeri

    Inventor： Shankar Regunathan ,  Kazuhito Koishida ,  Harshavardhana Narayana Kikkeri

    IPC: H04R3/00

    CPC classification number: G01S3/8083 ,  G01S3/8006 ,  G01S3/82 ,  H04R3/005

    Abstract: An array of microphones placed on a mobile robot provides multiple channels of audio signals. A received set of audio signals is called an audio segment, which is divided into multiple frames. A phase analysis is performed on a frame of the signals from each pair of microphones. If both microphones are in an active state during the frame, a candidate angle is generated for each such pair of microphones. The result is a list of candidate angles for the frame. This list is processed to select a final candidate angle for the frame. The list of candidate angles is tracked over time to assist in the process of selecting the final candidate angle for an audio segment.

    Abstract translation: 放置在移动机器人上的麦克风阵列提供多个音频信号通道。 接收到的一组音频信号被称为音频片段，其被分成多个帧。 对来自每对麦克风的信号的帧进行相位分析。 如果在帧期间两个麦克风处于活动状态，则为每个这样的麦克风生成候选角度。 结果是帧的候选角度列表。 处理该列表以选择帧的最终候选角度。 候选角度的列表随着时间被跟踪以帮助选择音频片段的最终候选角度的过程。

    Parameterized filters and signaling techniques
    76.
    发明授权
    Parameterized filters and signaling techniques 有权
    参数化滤波器和信令技术

    公开(公告)号：US08107571B2

    公开(公告)日：2012-01-31

    申请号：US11726395

    申请日：2007-03-20

    Applicant: Gary J. Sullivan ,  Sridhar Srinivasan ,  Shankar Regunathan ,  Chengjie Tu

    Inventor： Gary J. Sullivan ,  Sridhar Srinivasan ,  Shankar Regunathan ,  Chengjie Tu

    IPC: H04B1/10

    CPC classification number: H03H17/0294 ,  H03H2017/0297

    Abstract: Filter taps for filters are specified by filter coefficient parameters. The filter taps are greater in number than the coefficient parameters from which the filter taps are calculated. For example, two coefficient parameters are used to specify a four-tap filter. Filter information can be signaled in a bitstream, such as by signaling one or more family parameters for a filter family and, for each filter in a family, signaling one or more filter tap parameters from which filter taps can be derived. Family parameters can include a number of filters parameter, a resolution parameter, a scaling bits parameter, and/or a full integer position filter present parameter that indicates whether or not the filters include an integer position filter. Filter parameters can be signaled and used to determine coefficient parameters from which filter taps are calculated.

    Abstract translation: 滤波器的滤波器滤波器由滤波器系数参数指定。 滤波器抽头的数量大于计算滤波器抽头的系数参数。 例如，使用两个系数参数来指定四抽头滤波器。 滤波器信息可以在比特流中发信号通知，例如通过发信号通知用于滤波器族的一个或多个系列参数，并且对于一个系列中的每个滤波器来说，信号通知一个或多个滤波器抽头参数，从中可以导出滤波器抽头。 家族参数可以包括多个滤波器参数，分辨率参数，缩放比特参数和/或整数整数位置滤波器参数，其指示滤波器是否包括整数位置滤波器。 滤波器参数可以用信号通知并用于确定计算滤波器抽头的系数参数。

    FLEXIBLE RANGE REDUCTION
    77.
    发明申请
    FLEXIBLE RANGE REDUCTION 有权
    灵活范围减少

    公开(公告)号：US20110280303A1

    公开(公告)日：2011-11-17

    申请号：US13191335

    申请日：2011-07-26

    Applicant: Shankar Regunathan ,  Sridhar Srinivasan ,  Jie Liang ,  Chih-Lung Lin ,  Minghui Xia

    Inventor： Shankar Regunathan ,  Sridhar Srinivasan ,  Jie Liang ,  Chih-Lung Lin ,  Minghui Xia

    IPC: H04N7/28 ,  H04N11/02

    CPC classification number: H04N19/00145 ,  H04N19/137 ,  H04N19/16 ,  H04N19/196 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70

    Abstract: Techniques and tools are described for flexible range reduction of samples of video. For example, an encoder signals a first set of one or more syntax elements for range reduction of luma samples and signals a second set of one or more syntax elements for range reduction of chroma samples. The encoder selectively scales down the luma samples and chroma samples in a manner consistent with the first syntax element(s) and second syntax element(s), respectively. Or, an encoder signals range reduction syntax element(s) in an entry point header for an entry point segment, where the syntax element(s) apply to pictures in the entry point segment. If range reduction is used for the pictures, the encoder scales down samples of the pictures. Otherwise, the encoder skips the scaling down. A decoder performs corresponding parsing and scaling up operations.

    Abstract translation: 描述了技术和工具，用于灵活地缩减视频样本。 例如，编码器用信号通知一个或多个语法元素的第一组，用于亮度样本的范围减小，并且为第二组一个或多个语法元素用于色度样本的范围缩小。 编码器分别以与第一语法元素和第二语法元素一致的方式选择性地缩小亮度样本和色度样本。 或者，编码器对入口点段的入口点标题中的范围缩小语法元素进行信号，其中语法元素适用于入口点段中的图像。 如果图像使用范围缩小，则编码器缩小图像的样本。 否则，编码器跳过缩小比例。 解码器执行相应的解析和放大操作。

    Flexible range reduction
    78.
    发明授权
    Flexible range reduction 有权
    弹性范围缩小

    公开(公告)号：US08014450B2

    公开(公告)日：2011-09-06

    申请号：US10989702

    申请日：2004-11-15

    Applicant: Shankar Regunathan ,  Sridhar Srinivasan ,  Jie Liang ,  Chih-Lung Lin ,  Minghui Xia

    Inventor： Shankar Regunathan ,  Sridhar Srinivasan ,  Jie Liang ,  Chih-Lung Lin ,  Minghui Xia

    IPC: H04N7/12

    CPC classification number: H04N19/00145 ,  H04N19/137 ,  H04N19/16 ,  H04N19/196 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70

    Abstract: Techniques and tools are described for flexible range reduction of samples of video. For example, an encoder signals a first set of one or more syntax elements for range reduction of luma samples and signals a second set of one or more syntax elements for range reduction of chroma samples. The encoder selectively scales down the luma samples and chroma samples in a manner consistent with the first syntax element(s) and second syntax element(s), respectively. Or, an encoder signals range reduction syntax element(s) in an entry point header for an entry point segment, where the syntax element(s) apply to pictures in the entry point segment. If range reduction is used for the pictures, the encoder scales down samples of the pictures. Otherwise, the encoder skips the scaling down. A decoder performs corresponding parsing and scaling up operations.

    Abstract translation: 描述了技术和工具，用于灵活地缩减视频样本。 例如，编码器用信号通知一个或多个语法元素的第一组，用于亮度样本的范围减小，并且为第二组一个或多个语法元素用于色度样本的范围缩小。 编码器分别以与第一语法元素和第二语法元素一致的方式选择性地缩小亮度样本和色度样本。 或者，编码器对入口点段的入口点标题中的范围缩小语法元素进行信号，其中语法元素适用于入口点段中的图像。 如果图像使用范围缩小，则编码器缩小图像的样本。 否则，编码器跳过缩小比例。 解码器执行相应的解析和放大操作。

    Field start code for entry point frames with predicted first field
    79.
    发明授权
    Field start code for entry point frames with predicted first field 有权
    具有预测第一个字段的入口点帧的现场起始码

    公开(公告)号：US07852919B2

    公开(公告)日：2010-12-14

    申请号：US10989596

    申请日：2004-11-15

    Applicant: Regis J. Crinon ,  Thomas W. Holcomb ,  Shankar Regunathan ,  Sridhar Srinivasan

    Inventor： Regis J. Crinon ,  Thomas W. Holcomb ,  Shankar Regunathan ,  Sridhar Srinivasan

    IPC: H04N7/32 ,  H04N3/10

    CPC classification number: H04N19/44 ,  H04N19/70

    Abstract: A decoder receives a field start code for an entry point key frame. The field start code indicates a second coded interlaced video field in the entry point key frame following a first coded interlaced video field in the entry point key frame and indicates a point to begin decoding of the second coded interlaced video field. The first coded interlaced video field is a predicted field, and the second coded interlaced video field is an intra-coded field. The decoder decodes the second field without decoding the first field. The field start code can be followed by a field header. The decoder can receive a frame header for the entry point key frame. The frame header may comprise a syntax element indicating a frame coding mode for the entry point key frame and/or a syntax element indicating field types for the first and second coded interlaced video fields.

    Abstract translation: 解码器接收入口点关键帧的场起始码。 场起始码指示入口点关键帧中的第一编码隔行扫描视频字段之后的入口点关键帧中的第二编码隔行扫描视频字段，并且指示开始对第二编码交错视频字段进行解码的点。 第一编码隔行视频字段是预测字段，第二编码隔行视频字段是帧内编码字段。 解码器解码第二场而不解码第一场。 字段起始码可以后跟一个字段标题。 解码器可以接收入口点关键帧的帧头。 帧头可以包括指示用于入口点关键帧的帧编码模式的语法元素和/或指示第一和第二编码隔行视频字段的字段类型的语法元素。

    DC COEFFICIENT SIGNALING AT SMALL QUANTIZATION STEP SIZES
    80.
    发明申请
    DC COEFFICIENT SIGNALING AT SMALL QUANTIZATION STEP SIZES 有权
    直流系数小信号步进尺寸信号

    公开(公告)号：US20100246671A1

    公开(公告)日：2010-09-30

    申请号：US12815029

    申请日：2010-06-14

    Applicant: Chih-Lung Lin ,  Shankar Regunathan ,  Sridhar Srinivasan

    Inventor： Chih-Lung Lin ,  Shankar Regunathan ,  Sridhar Srinivasan

    IPC: H04N7/26

    CPC classification number: H04N19/18 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/137 ,  H04N19/17 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91

    Abstract: Described tools and techniques relate to signaling for DC coefficients at small quantization step sizes. The techniques and tools can be used in combination or independently. For example, a tool such as a video encoder or decoder processes a VLC that indicates a DC differential for a DC coefficient, a FLC that indicates a value refinement for the DC differential, and a third code that indicates the sign for the DC differential. Even with the small quantization step sizes, the tool uses a VLC table with DC differentials for DC coefficients above the small quantization step sizes. The FLCs for DC differentials have lengths that vary depending on quantization step size.

    Abstract translation: 描述的工具和技术涉及在小量化步长下用于DC系数的信令。 技术和工具可以组合使用或独立使用。 例如，诸如视频编码器或解码器的工具处理指示DC系数的DC差分的VLC，指示DC差分的值细化的FLC以及指示DC差分的符号的第三代码。 即使使用较小的量化步长，该工具也会使用具有DC系数的直流差分的VLC表，其高于小量化步长。 用于DC差分的FLC具有随量化步长变化的长度。

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