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1. 发明申请

WO2012104828A1 A METHOD AND APPARATUS FOR HIERARCHICAL ADAPTIVE FILTERING 审中-公开
标题翻译：一种用于分层自适应滤波的方法和装置
公开(公告)号：WO2012104828A1
公开(公告)日：2012-08-09
申请号：PCT/IL2011/000125
申请日：2011-02-03
申请人： DSP GROUP LTD. , RAIFEL, Mark , CHEN, Yaakov , SCHREIBMAN, Amos , FOGEL, Eli
发明人： RAIFEL, Mark , CHEN, Yaakov , SCHREIBMAN, Amos , FOGEL, Eli
IPC分类号： H03H21/00 , H04B3/23
CPC分类号： H04M3/002 , H03H21/0067 , H03H2021/0061 , H03H2021/0076 , H04B3/23
摘要： A method and apparatus for filtering a reference signal by a series of taps having coefficients, comprising dividing the taps into at least one layer of a plurality of groups, each group comprising a plurality of taps, as a first layer, forming a plurality of coefficients arranged in at least one group, as at least one subsequent layer and forwarding multiply-accumulate results of each group in each layer sequentially to the at least one group in the at least one subsequent layer to generate an output signal, and adjusting the coefficients based on an error signal formed as a difference between the output signal and a received input signal related to the reference signal and an interim error signal as a difference between the input signal and a summation of the multiply-accumulate results of at least one layer.
摘要翻译：一种用于通过具有系数的一系列抽头对参考信号进行过滤的方法和装置，包括将抽头分成至少一组多个组，每个组包括多个抽头，作为第一层，形成多个系数布置在至少一个组中，作为至少一个后续层，并且将每个层中的每个组的每个组的乘法累积结果顺序地传送到所述至少一个后续层中的所述至少一个组，以生成输出信号，并且基于在作为输入信号和与参考信号相关的接收输入信号和中间误差信号之间的差异形成的误差信号作为输入信号与至少一层的乘法累积结果的总和之间的差。

2. 发明申请

WO2011141902A1 ADAPTIVE PROCESSOR 审中-公开
标题翻译：自适应处理器
公开(公告)号：WO2011141902A1
公开(公告)日：2011-11-17
申请号：PCT/IL2010/000387
申请日：2010-05-13
申请人： DSP GROUP LTD. , RAIFEL, Mark , SCHREIBMAN, Amos , FOGEL, Eli
发明人： RAIFEL, Mark , SCHREIBMAN, Amos , FOGEL, Eli
IPC分类号： H04B1/06
CPC分类号： H04L25/0228 , G05B13/024
摘要： A method and adaptive processor for estimating a reference signal, comprising receiving or determining a number of groups and respective group sizes, each group associated with a range of delay values of the reference signal, determining a multiplicity of coefficients, each coefficient associated with a specific delay of the reference signal, determining a multiplicity of weights, each weight associated with one of the groups, multiplying each sample of the reference signal having a delay by a corresponding coefficient to obtain a first product, and summing a multiplicity of first products associated with a group into a group sum signal sample, and multiplying each group sum by a weight associated with the group to obtain a second product, and summing all second products to obtain an estimated signal value.
摘要翻译：一种用于估计参考信号的方法和自适应处理器，包括接收或确定多个组和相应组大小，每个组与所述参考信号的延迟值的范围相关联，确定多个系数，每个系数与特定参考信号的延迟，确定多个权重，与组中的一个相关联的每个权重，将具有延迟的参考信号的每个样本乘以相应的系数以获得第一乘积，并将与多个第一乘积相关联的多个第一乘积相加将组合成组合信号样本，并且将每个组和乘以与组相关联的权重以获得第二乘积，并且对所有第二乘积求和以获得估计信号值。

3. 发明申请

WO2012059909A1 ADAPTIVELY SCALED PARAMETER ESTIMATOR 审中-公开
标题翻译：自适应扩展参数估计器
公开(公告)号：WO2012059909A1
公开(公告)日：2012-05-10
申请号：PCT/IL2010/000914
申请日：2010-11-03
申请人： DSP GROUP LTD. , FOGEL, Eli , RAIFEL, Mark
发明人： FOGEL, Eli , RAIFEL, Mark
IPC分类号： H03H21/00
CPC分类号： H03H21/0043 , H03H21/0012
摘要： A method and adaptive processor for estimating a reference signal, comprising a method for estimating a reference signal comprising: A method for estimating a parametric representation of a reference signal using, comprising: receiving a sample of a reference signal; receiving a number of groups and a multiplicity of group sizes; determining a vector representing the reference signal; determining an input vector associated with the vector representing the reference signal, wherein the input vector comprises a collection of sub-vectors, the number of sub-vectors equal to the number of groups, and each sub-vector having a size equal to a corresponding group size; for each sub-vector determining a corresponding coefficient vector, wherein the determination uses a previously determined gain factor associated with the sub-vector; and determining a gain factor associated with each coefficient vector.
摘要翻译：一种用于估计参考信号的方法和自适应处理器，包括用于估计参考信号的方法，包括：使用以下步骤估计参考信号的参数表示的方法，包括：接收参考信号的采样; 接收多个组和多个组大小; 确定表示参考信号的矢量; 确定与表示参考信号的向量相关联的输入向量，其中输入向量包括子向量的集合，等于组的数量的子向量的数量，以及每个子向量的大小等于对应的组大小对于确定相应系数向量的每个子向量，其中所述确定使用与所述子向量相关联的先前确定的增益因子; 以及确定与每个系数向量相关联的增益因子。

4. 发明申请

WO2010064230A1 ADAPTIVE ERROR PROTECTION FOR WIRELESS COMMUNICATIONS 审中-公开
标题翻译：无线通信的自适应错误保护
公开(公告)号：WO2010064230A1
公开(公告)日：2010-06-10
申请号：PCT/IL2009/001112
申请日：2009-11-25
申请人： DSP GROUP LTD. , FOGEL, Eli , RAIFEL, Mark
发明人： FOGEL, Eli , RAIFEL, Mark
IPC分类号： H03M13/00
CPC分类号： H04L1/0009 , H03M13/09 , H03M13/15 , H03M13/1515 , H03M13/353 , H03M13/6306 , H04L1/0014 , H04L1/0084
摘要： A method of error protection for wireless communication of packets of sampled digitized audio data according to a selected communication protocol, comprising: identifying the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used; selectively replacing one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet; transmitting the altered packet from a transmitting party to a receiving party; using the replaced bits to detect or correct errors in the transmitted packet; wherein said communication protocol uses an ADPCM encoding scheme.
摘要翻译：一种根据选定的通信协议对采样的数字化音频数据的分组的无线通信进行的错误保护的方法，包括：基于所使用的通信协议，识别分组中编码的音频数据的每个采样的最低有效位; 用能够对编码在分组中的其余数据执行纠错的值来选择性地替换一个或多个最低有效位; 将改变的分组从发送方发送到接收方; 使用替换的比特来检测或纠正所发送的分组中的错误; 其中所述通信协议使用ADPCM编码方案。

5. 发明申请

WO2011092699A1 USAGE OF SPEAKER AS MICROPHONE FOR SOUND ENHANCEMENT 审中-公开
标题翻译：使用扬声器作为麦克风进行声音增强
公开(公告)号：WO2011092699A1
公开(公告)日：2011-08-04
申请号：PCT/IL2011/000097
申请日：2011-01-27
申请人： DSP GROUP LTD , RAIFEL, Mark , CHEN, Yaakov
发明人： RAIFEL, Mark , CHEN, Yaakov
IPC分类号： H04R3/02 , H04M1/60 , H04M9/08
CPC分类号： H04R3/02 , H04M1/6041 , H04R2400/01 , H04R2499/11
摘要： The method and system use a speaker available in an audio end device when not in use as a microphone. The speaker is utilized for enhancing the sound quality received by the person or device at the near end, i.e., the user of the device, or the speaker at the far end, i.e., the speaker with whom the near-end speaker is communicating. Exemplary applications are shown for such utilization, including single or dual microphone near-end automatic listening enhancement, acoustic echo cancellation or suppression with or without double talk detection, and microphone array noise reduction.
摘要翻译：该方法和系统在不用作麦克风时使用音频终端设备中可用的扬声器。扬声器用于增强近端的人或设备，即设备的用户或远端的扬声器，即近端扬声器正在通信的扬声器所接收的声音质量。示出了用于这种利用的示例性应用，包括单麦克风或双麦克风近端自动收听增强，具有或不具有双方通话检测的声学回声消除或抑制以及麦克风阵列降噪。

6. 发明申请

WO2011117860A1 COMFORT NOISE GENERATION METHOD AND SYSTEM 审中-公开
标题翻译：舒适的噪声发生方法与系统
公开(公告)号：WO2011117860A1
公开(公告)日：2011-09-29
申请号：PCT/IL2011/000246
申请日：2011-03-14
申请人： DSP GROUP LTD. , CHEN, Yaakov , RAIFEL, Mark
发明人： CHEN, Yaakov , RAIFEL, Mark
IPC分类号： G10L19/00
CPC分类号： G10L19/012
摘要： A method for audio Comfort Noise Generation (CNG) comprising the steps of recording information of Background Noise (BGN); generating white noise samples; and generating Comfort Noise (CN) by applying coefficients that are extracted from said information of BGN on White Noise (WN) samples.
摘要翻译：一种用于音频舒适噪声产生（CNG）的方法，包括记录背景噪声（BGN）信息的步骤; 产生白噪声样本; 并通过应用从白噪声（WN）样本的BGN信息中提取的系数来产生舒适噪声（CN）。

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