Stereo coding and decoding method and apparatus thereof
    61.
    发明授权
    Stereo coding and decoding method and apparatus thereof 有权
    立体声编码和解码方法及装置

    公开(公告)号:US08254585B2

    公开(公告)日:2012-08-28

    申请号:US12623676

    申请日:2009-11-23

    IPC分类号: H04R5/00

    摘要: A method of encoding input signals (l, r) to generate encoded data (100) is provided. The method involves processing the input signals (l, r) to determine first parameters (φ1, φ2) describing relative phase difference and temporal difference between the signals (l, r), and applying these first parameters (φ1, φ2) to process the input signals to generate intermediate signals. The method involves processing the intermediate signals to determine second parameters (α; IID, ρ) describing angular rotation of the first intermediate signals to generate a dominant signal (m) and a residual signal (s), the dominant signal (m) having a magnitude or energy greater than that of the residual signal (s). These second parameters are applicable to process the intermediate signals to generate the dominant (m) and residual (s) signals. The method also involves quantizing the first parameters, the second parameters, and dominant and residual signals (m, s) to generate corresponding quantized data for subsequent multiplexing to generate the encoded data (100).

    摘要翻译: 提供了编码输入信号(l,r)以生成编码数据(100)的方法。 该方法包括处理输入信号(1,r)以确定描述信号(1,r)之间的相对相位差和时间差的第一参数(&phgr; 1,&phgr; 2),并应用这些第一参数 ,&phgr; 2)处理输入信号以产生中间信号。 该方法包括处理中间信号以确定描述第一中间信号的角旋转的第二参数(α; IID,&rgr),以产生主要信号(m)和残余信号,主信号(m)具有 大于残余信号的幅度或能量。 这些第二参数适用于处理中间信号以产生主(m)和残留信号。 该方法还包括量化第一参数,第二参数以及显性和残留信号(m,s)以产生对应的量化数据用于随后的多路复用以产生编码数据(100)。

    Method and device for calculating a similarity metric between a first feature vector and a second feature vector
    62.
    发明授权
    Method and device for calculating a similarity metric between a first feature vector and a second feature vector 有权
    用于计算第一特征向量和第二特征向量之间的相似性度量的方法和装置

    公开(公告)号:US08214304B2

    公开(公告)日:2012-07-03

    申请号:US12090360

    申请日:2006-10-16

    IPC分类号: G06F11/00

    摘要: The method of calculating a similarity metric between a first feature vector of a first audio and/or video signal and a second feature vector of a second audio and/or video signal of the invention comprises the step of calculating a distance between the first feature vector and the second feature vector, both the first feature vector and the second feature vector comprising a feature value of a second dimension, wherein a weighting factor is used that gives a stronger weight to the first dimension than to the second dimension. The electronic device of the invention comprises electronic circuitry, which is operative to perform the method of the invention. The software of the invention makes a programmable device operative to perform the method of the invention.

    摘要翻译: 计算本发明的第一音频和/或视频信号的第一特征向量与第二音频和/或视频信号的第二特征向量之间的相似性度量的方法包括以下步骤:计算第一特征向量 和所述第二特征向量,所述第一特征向量和所述第二特征向量都包括第二维度的特征值,其中使用加权因子,所述权重因子对所述第一维度比所述第二维度赋予更大的权重。 本发明的电子设备包括电子电路,其可操作以执行本发明的方法。 本发明的软件使可编程设备可操作地执行本发明的方法。

    Signal coding and decoding
    63.
    发明授权
    Signal coding and decoding 有权
    信号编码和解码

    公开(公告)号:US08170871B2

    公开(公告)日:2012-05-01

    申请号:US12900722

    申请日:2010-10-08

    IPC分类号: G10L21/02

    CPC分类号: G10L19/008

    摘要: An encoding device (1) and method convert a set of signals (l, r) into a dominant signal (m) containing most signal energy, a residual signal (s) containing a remainder of the signal energy, and signal parameters (IID, ICC) associated with the conversion. The dominant signal (m) and selected parts of the residual signal (s) are encoded. Selecting parts of the residual signal involves a residual signal (s′) passing perceptually relevant parts of the residual signal (s), attenuating perceptually less relevant parts of the residual signal and suppressing least relevant parts of the residual signal. An associated decoding device (2) and method decode the encoded dominant signal and the encoded residual signal so as to produce a decoded dominant signal (m′u) and a decoded residual signal (s′mod) respectively. A synthetic residual signal (s′syn) is derived from the decoded dominant signal (m′u) and is attenuated so as to produce an attenuated synthetic residual signal (s′syn,mod). The attenuated synthetic residual signal (s′syn,mod) and the decoded residual signal (s′mod) are combined to produce a reconstructed residual signal (s′). The decoded dominant signal (m′) and the reconstructed residual signal (s′) are then converted into a set of output signals (l′, r′).

    摘要翻译: 一种编码装置(1)和方法,将一组信号(1,r)转换成包含大多数信号能量的显性信号(m),包含信号能量的剩余部分的残余信号和信号参数(IID, ICC)与转换相关联。 对主要信号(m)和剩余信号的选定部分进行编码。 选择残余信号的部分包括通过残留信号的感知相关部分的残留信号(s'),衰减感知上较少的残余信号的相关部分并抑制残留信号的最小相关部分。 相关联的解码装置(2)和方法对编码的主导信号和编码的残余信号进行解码,以分别产生解码的主导信号(m'u)和解码的残余信号(s'mod)。 合成残差信号(s'syn)从解码的主导信号(m'u)导出,并被衰减,以产生衰减的合成残差信号(s'syn,mod)。 衰减的合成残差信号(s'syn,mod)和解码的残留信号(s'mod)被组合以产生重建的残余信号(s')。 解码后的主导信号(m')和重建的残余信号(s')然后被转换成一组输出信号(1',r')。

    SUBJECT DETECTION
    64.
    发明申请
    SUBJECT DETECTION 审中-公开
    主体检测

    公开(公告)号:US20120075110A1

    公开(公告)日:2012-03-29

    申请号:US13322680

    申请日:2010-06-08

    IPC分类号: G08B21/00

    CPC分类号: G08B21/0202

    摘要: The application describes a child monitoring system and method for detecting and discriminating between children and adults passing under a sensor that is independent of the position of the sensor in relation to the subject. The system determines a distance to a surface on which a person can stand, and calculates a reference distance from this distance and a desired threshold. When a person enters the sensor range, the distance to the top of the person's head is compared with the reference distance to determine whether the person is an adult or a child. An alert can be provided when a child is detected as opposed to an adult, and alerts can be suppressed if an adult is in the vicinity.

    摘要翻译: 本申请描述了一种儿童监视系统和方法,用于检测和区分通过传感器下方的儿童和成人,该传感器与传感器相对于受试者的位置无关。 系统确定与人可以站立的表面的距离,并计算距离该距离和期望阈值的参考距离。 当人进入传感器范围时,将与人的头部的距离与参考距离进行比较,以确定该人是成年人还是小孩。 当检测到小孩与成人相对时,可以提供警报,如果成年人在附近,可以抑制警报。

    Encoding and decoding a set of signals
    65.
    发明授权
    Encoding and decoding a set of signals 有权
    对一组信号进行编码和解码

    公开(公告)号:US07835918B2

    公开(公告)日:2010-11-16

    申请号:US11718239

    申请日:2005-10-31

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008

    摘要: An encoding device (1) and method convert a set of signals (l, r) into a dominant signal (m) containing most signal energy, a residual signal (s) containing a remainder of the signal energy, and signal parameters (IID, ICC) associated with the conversion. The dominant signal (m) and selected parts of the residual signal (s) are encoded. Selecting parts of the residual signal involves a residual signal (s′) passing perceptually relevant parts of the residual signal (s), attenuating perceptually less relevant parts of the residual signal and suppressing least relevant parts of the residual signal. An associated decoding device (2) and method decode the encoded dominant signal and the encoded residual signal so as to produce a decoded dominant signal (m′u) and a decoded residual signal (s′mod) respectively. A synthetic residual signal (s′Syn) is derived from the decoded dominant signal (m′u) and is attenuated so as to produce an attenuated synthetic residual signal (S′Syn,mod). The attenuated synthetic residual signal (Ssyn,mod) and the decoded residual signal (S′mod) are combined to produce a reconstructed residual signal (s′). The decoded dominant signal (m′) and the reconstructed residual signal (s′) are then converted into a set of output signals (l′, r′).

    摘要翻译: 一种编码装置(1)和方法,将一组信号(1,r)转换成包含大多数信号能量的显性信号(m),包含信号能量的剩余部分的残余信号和信号参数(IID, ICC)与转换相关联。 对主要信号(m)和剩余信号的选定部分进行编码。 选择残余信号的部分包括通过残留信号的感知相关部分的残留信号(s'),衰减感知上较少的残余信号的相关部分并抑制残留信号的最小相关部分。 相关联的解码装置(2)和方法对编码的主导信号和编码的残余信号进行解码,以分别产生解码的主导信号(m'u)和解码的残余信号(s'mod)。 合成残差信号(s'Syn)从解码的主导信号(m'u)导出,并被衰减,以产生衰减的合成残差信号(S'Syn,mod)。 衰减的合成残差信号(Ssyn,mod)和解码的残留信号(S'mod)被组合以产生重建的残余信号(s')。 解码后的主导信号(m')和重建的残余信号(s')然后被转换成一组输出信号(1',r')。

    METHOD AND APPARATUS FOR GENERATING A BINAURAL AUDIO SIGNAL
    66.
    发明申请
    METHOD AND APPARATUS FOR GENERATING A BINAURAL AUDIO SIGNAL 有权
    用于生成音频信号的方法和装置

    公开(公告)号:US20100246832A1

    公开(公告)日:2010-09-30

    申请号:US12681124

    申请日:2008-09-30

    IPC分类号: H04R5/00

    摘要: An apparatus for generating a binaural audio signal includes a de-multiplexer and decoder which receives audio data comprising an audio M-channel audio signal which is a downmix of an N-channel audio signal and spatial parameter data for upmixing the M-channel audio signal to the N-channel audio signal. A conversion processor converts spatial parameters of the spatial parameter data into first binaural parameters in response to at least one binaural perceptual transfer function. A matrix processor converts the M-channel audio signal into a first stereo signal in response to the first binaural parameters. A stereo filter generates the binaural audio signal by filtering the first stereo signal. The filter coefficients for the stereo filter are determined in response to the at least one binaural perceptual transfer function by a coefficient processor. The combination of parameter conversion/processing and filtering allows a high quality binaural signal to be generated with low complexity.

    摘要翻译: 一种用于产生双耳音频信号的装置包括解复用器和解码器,其接收音频数据,音频数据包括作为N声道音频信号的下混的音频M声道音频信号和用于上混M声道音频信号的空间参数数据 到N声道音频信号。 转换处理器响应于至少一个双耳感知传递函数将空间参数数据的空间参数转换成第一双耳参数。 矩阵处理器响应于第一双耳参数将M声道音频信号转换成第一立体声信号。 立体声滤波器通过对第一立体声信号进行滤波来产生双耳音频信号。 响应于系数处理器的至少一个双耳感知传递函数来确定用于立体声滤波器的滤波器系数。 参数转换/处理和滤波的组合允许以低复杂度产生高质量的双耳信号。

    Method and Device for Calculating a Similarity Metric Between a First Feature Vector and a Second Feature Vector
    67.
    发明申请
    Method and Device for Calculating a Similarity Metric Between a First Feature Vector and a Second Feature Vector 有权
    用于计算第一特征向量和第二特征向量之间的相似性度量的方法和装置

    公开(公告)号:US20080281895A1

    公开(公告)日:2008-11-13

    申请号:US12090360

    申请日:2006-10-16

    IPC分类号: G06F17/15

    摘要: The method of calculating a similarity metric between a first feature vector of a first audio and/or video signal and a second feature vector of a second audio and/or video signal of the invention comprises the step of calculating a distance between the first feature vector and the second feature vector, both the first feature vector and the second feature vector comprising a feature value of a second dimension, wherein a weighting factor is used that gives a stronger weight to the first dimension than to the second dimension. The electronic device of the invention comprises electronic circuitry, which is operative to perform the method of the invention. The software of the invention makes a programmable device operative to perform the method of the invention.

    摘要翻译: 计算本发明的第一音频和/或视频信号的第一特征向量与第二音频和/或视频信号的第二特征向量之间的相似性度量的方法包括以下步骤:计算第一特征向量 和所述第二特征向量,所述第一特征向量和所述第二特征向量都包括第二维度的特征值,其中使用加权因子,所述权重因子对所述第一维度比所述第二维度赋予更大的权重。 本发明的电子设备包括电子电路,其可操作以执行本发明的方法。 本发明的软件使可编程设备可操作地执行本发明的方法。