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1. 发明申请

WO2010013196A3 A METHOD TO LINEARIZE THE OUTPUT FROM AN ADC 审中-公开
标题翻译：一种从ADC中输出输出的方法
公开(公告)号：WO2010013196A3
公开(公告)日：2010-04-08
申请号：PCT/IB2009053273
申请日：2009-07-28
申请人： NXP BV , HEKSTRA ANDRIES PIETER , BREEMS LUCIEN JOHANNES , RUTTEN ROBERT
发明人： HEKSTRA ANDRIES PIETER , BREEMS LUCIEN JOHANNES , RUTTEN ROBERT
IPC分类号： H03M3/02
CPC分类号： H03M3/386 , H03M3/43 , H03M3/456
摘要： A method is disclosed of compensating the output of an ADC for non- linearity in the response of the ADC. The methodcomprises converting an analog input signal to uncorrected digital ADC output samples, applying a vector of correction variables to each of a block of uncorrected ADC output samples to provide a block of corrected ADC samples, and iteratively minimizing a measure of the spectral flatness of the block of corrected ADC samples with response to the vector of correction variables.
摘要翻译：公开了一种在ADC的响应中补偿ADC的输出以达到非线性的方法。该方法包括将模拟输入信号转换为未校正的数字ADC输出采样，将校正变量向量应用于未校正的ADC输出采样块中的每一个，以提供校正的ADC采样块，并且迭代地最小化测量的光谱平坦度校正的ADC样本的块对应于校正变量的向量。

2. 发明申请

WO02073601B1 METHOD AND DEVICE FOR DETERMINING THE QUALITY OF A SPEECH SIGNAL 审中-公开
标题翻译：确定语音信号质量的方法和设备
公开(公告)号：WO02073601B1
公开(公告)日：2002-11-28
申请号：PCT/EP0202342
申请日：2002-03-01
申请人： KONINKL KPN NV , BEERENDS JOHN GERARD , HEKSTRA ANDRIES PIETER
发明人： BEERENDS JOHN GERARD , HEKSTRA ANDRIES PIETER
IPC分类号： G10L19/00 , G10L25/69 , H04M3/22
CPC分类号： G10L25/69
摘要： Objective measurement methods and devices for predicting perceptual quality of speech signals degraded in speech rocessing/transporting systems may have poor prediction results for degraded signals including extremely weak or silent portions. Improvement is achieved by applying a first scaling step in a pre-processing stage with a first scalins factor (S(Y+ DELTA ), which is a function of the reciprocal value of the power of the output signal increased by an adjustment value ( DELTA ), and by a second scaling step with a second scaling factor (S (Y+ DELTA ); S (Y+ DELTA i), with i=1, 2), which is substantially equal to the first scaling factor raised to an exponent having a adjustment value ( alpha ) between zero and one. The second scaling step may be carried out on various locations in the device. The adjustment values are adjusted using test signals with well defined subjective quality scores.
摘要翻译：用于预测语音处理/传输系统中降级的语音信号的感知质量的客观测量方法和设备对于包括极弱或无声部分的降级信号可能具有较差的预测结果。通过在具有第一缩放因子（S（Y +Δ））的预处理阶段中应用第一缩放步骤来实现改进，所述第一缩放因子是输出信号的功率的倒数值的函数，所述第一缩放因子增加了调整值Δ 并且通过具有第二缩放因子（S（Y +Δ; Sα（Y +ΔI））的第二缩放步骤，其中i = 1,2），其基本上等于第一缩放因子将其调整为具有介于0和1之间的调整值（α）的指数，第二缩放步骤可以在设备中的不同位置上执行，使用具有明确定义的主观质量分数的测试信号来调整调整值。

3. 发明申请

WO02073601A8 METHOD AND DEVICE FOR DETERMINING THE QUALITY OF A SPEECH SIGNAL 审中-公开
标题翻译：用于确定语音信号质量的方法和装置
公开(公告)号：WO02073601A8
公开(公告)日：2005-05-12
申请号：PCT/EP0202342
申请日：2002-03-01
申请人： KONINKL KPN NV , BEERENDS JOHN GERARD , HEKSTRA ANDRIES PIETER
发明人： BEERENDS JOHN GERARD , HEKSTRA ANDRIES PIETER
IPC分类号： G10L19/00 , G10L25/69 , H04M3/22
CPC分类号： G10L25/69
摘要： Objective measurement methods and devices for predicting perceptual quality of speech signals degraded in speech rocessing/transporting systems may have poor prediction results for degraded signals including extremely weak or silent portions. Improvement is achieved by applying a first scaling step in a pre-processing stage with a first scalins factor (S(Y+ DELTA ), which is a function of the reciprocal value of the power of the output signal increased by an adjustment value ( DELTA ), and by a second scaling step with a second scaling factor (S (Y+ DELTA ); S (Y+ DELTA i), with i=1, 2), which is substantially equal to the first scaling factor raised to an exponent having a adjustment value ( alpha ) between zero and one. The second scaling step may be carried out on various locations in the device. The adjustment values are adjusted using test signals with well defined subjective quality scores.
摘要翻译：用于预测在语音处理/传输系统中降级的语音信号的感知质量的客观测量方法和设备对于包括极弱或无声部分的劣化信号可能具有差的预测结果。通过在预处理阶段应用第一标准因子（S（Y + DELTA））来实现改进，该第一标度因子是输出信号的功率的倒数增加调整值（DELTA）的函数，，并且通过具有第二缩放因子（S （Y + DELTA））的第二缩放步骤，其中i = 1,2），其基本上等于第一缩放因子升至具有0和1之间的调整值（α）的指数，第二缩放步骤可以在设备中的各个位置上执行，使用具有良好定义的主观质量得分的测试信号来调整调整值。

4. 发明申请

WO0239707A3 MEASURING A TALKING QUALITY OF A TELEPHONE LINK IN A TELECOMMUNICATIONS NETWORK 审中-公开
标题翻译：在电信网络中测量电话链接的谈话质量
公开(公告)号：WO0239707A3
公开(公告)日：2002-07-18
申请号：PCT/EP0111777
申请日：2001-10-11
申请人： KONINKL KPN NV , BEERENDS JOHN GERARD , APPEL SYMON RONALD , HEKSTRA ANDRIES PIETER
发明人： BEERENDS JOHN GERARD , APPEL SYMON RONALD , HEKSTRA ANDRIES PIETER
IPC分类号： H04M1/24 , H04B3/46 , H04M3/22 , H04M3/32
CPC分类号： H04M3/323 , H04M3/2236
摘要： For measuring the influence of noise on the talking quality of a telephone link in a telecommunications network, a talker speech signal (s(t)) and a degraded speech signal (s'(t)) are fed to an objective measurement device (22) for obtaining an output signal (q) representing an estimated value of the talking quality. The degraded signal includes a returned signal (r(t)) originating from the network during transmission of the talker speech signal over the telephone link. The objective measurement carried out by the device is a modified PSQM-like measurement, which is modified as to include a modelling (32b) of masking effects in consequence of noise present in the returned signal. Preferably the modelling includes a noise suppression (42) carried out to a difference signal (D(t, f)) in the loudness density domain using a noise estimation (41).
摘要翻译：为了测量噪声对电信网络中电话链路的通话质量的影响，将讲话者语音信号（s（t））和降级语音信号（s'（t））馈送到客观测量设备（22 ），用于获得表示通话质量的估计值的输出信号（q）。退化的信号包括在通过电话链路发送讲话者语音信号期间从网络发出的返回信号（r（t））。该设备进行的客观测量是一种改进的类PSQM测量，该测量被修改为包括因返回信号中存在噪声而产生的掩蔽效应的建模（32b）。优选地，建模包括使用噪声估计（41）对响度密度域中的差值信号（D（t，f））执行的噪声抑制（42）。

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