公开(公告)号：US08243695B2

公开(公告)日：2012-08-14

申请号：US12537906

申请日：2009-08-07

申请人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

发明人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

IPC分类号： H04B7/216 ,  G10L19/12 ,  H04L27/06

CPC分类号： H04L1/08 ,  H04L1/0046 ,  H04L1/201

摘要： A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

摘要翻译： 一种用于在可变速率通信系统接收机中检测速率确定算法错误的系统和方法。 所公开的实施例防止速率确定算法错误引起可听见的伪影，例如吱吱声或嘟嘟声。 所公开的系统和方法检测具有错误确定的数据速率的帧，并执行帧擦除处理和/或存储器状态清理，以防止跨多个帧的失真传播。 通过检查非法速率转换，保留位，验证未使用的过滤器类型位组合以及分析固定代码簿增益和线性预测系数增益之间的关系来检测具有不正确确定的数据速率的帧。

公开(公告)号：US07590096B2

公开(公告)日：2009-09-15

申请号：US10938445

申请日：2004-09-09

申请人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

发明人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

IPC分类号： H04B7/216 ,  G10L19/12 ,  H04L27/06

CPC分类号： H04L1/08 ,  H04L1/0046 ,  H04L1/201

摘要： A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

公开(公告)号：US06804218B2

公开(公告)日：2004-10-12

申请号：US09730147

申请日：2000-12-04

申请人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

发明人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

IPC分类号： H04B7216

CPC分类号： H04L1/08 ,  H04L1/0046 ,  H04L1/201

摘要： A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

摘要翻译： 一种用于在可变速率通信系统接收机中检测速率确定算法错误的系统和方法。 所公开的实施例防止速率确定算法错误引起可听见的伪影，例如吱吱声或嘟嘟声。 所公开的系统和方法检测具有错误确定的数据速率的帧，并执行帧擦除处理和/或存储器状态清理，以防止跨多个帧的失真传播。 通过检查非法速率转换，保留位，验证未使用的过滤器类型位组合以及分析固定代码簿增益和线性预测系数增益之间的关系来检测具有不正确确定的数据速率的帧。

公开(公告)号：US20100036668A1

公开(公告)日：2010-02-11

申请号：US12537906

申请日：2009-08-07

申请人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DaJaco ,  Pengjun Huang

发明人： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DaJaco ,  Pengjun Huang

IPC分类号： G10L11/00

CPC分类号： H04L1/08 ,  H04L1/0046 ,  H04L1/201

摘要： A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

摘要翻译： 一种用于在可变速率通信系统接收机中检测速率确定算法错误的系统和方法。 所公开的实施例防止速率确定算法错误引起可听见的伪影，例如吱吱声或嘟嘟声。 所公开的系统和方法检测具有错误确定的数据速率的帧，并执行帧擦除处理和/或存储器状态清理，以防止跨多个帧的失真传播。 通过检查非法速率转换，保留位，验证未使用的过滤器类型位组合以及分析固定代码簿增益和线性预测系数增益之间的关系来检测具有不正确确定的数据速率的帧。

公开(公告)号：US20080312917A1

公开(公告)日：2008-12-18

申请号：US12190524

申请日：2008-08-12

申请人： Arasanipalai K. Ananthapadmanabhan ,  Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. Dejaco

发明人： Arasanipalai K. Ananthapadmanabhan ,  Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. Dejaco

IPC分类号： G10L19/00

CPC分类号： G10L19/04 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/08 ,  G10L19/097 ,  G10L19/26 ,  G10L25/12

摘要： A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.

摘要翻译： 用于预测量化浊音的方法和装置包括参数发生器和量化器。 参数发生器被配置为从诸如有声语音的预测语音的帧中提取参数，并且将提取的信息变换为频域表示。 量化器被配置为从当前帧的参数中减去先前帧的参数的加权和。 量化器被配置为量化差值。 可以添加原型提取器以首先提取要由参数发生器处理的音调周期原型。

公开(公告)号：US07426466B2

公开(公告)日：2008-09-16

申请号：US10897746

申请日：2004-07-22

申请人： Arasanipalai K. Ananthapadmanabhan ,  Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. DeJaco

发明人： Arasanipalai K. Ananthapadmanabhan ,  Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. DeJaco

IPC分类号： G10L19/14

CPC分类号： G10L19/04 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/08 ,  G10L19/097 ,  G10L19/26 ,  G10L25/12

摘要： A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.

摘要翻译： 用于预测量化浊音的方法和装置包括参数发生器和量化器。 参数发生器被配置为从诸如有声语音的预测语音的帧中提取参数，并且将提取的信息变换为频域表示。 量化器被配置为从当前帧的参数中减去先前帧的参数的加权和。 量化器被配置为量化差值。 可以添加原型提取器以首先提取要由参数发生器处理的音调周期原型。

公开(公告)号：US06434519B1

公开(公告)日：2002-08-13

申请号：US09356861

申请日：1999-07-19

申请人： Sharath Manjunath ,  Andrew P. Dejaco ,  Arasanipalai K. Ananthapadmanabhan ,  Pengjun Huang ,  Eddie Lun Tik Choy

发明人： Sharath Manjunath ,  Andrew P. Dejaco ,  Arasanipalai K. Ananthapadmanabhan ,  Pengjun Huang ,  Eddie Lun Tik Choy

IPC分类号： G10L1914

CPC分类号： G10L19/0208 ,  G10L19/10

摘要： A method and apparatus for identifying frequency bands to compute linear phase shifts between frame prototypes in a speech coder includes partitioning the frequency spectrum of a prototype of a frame by dividing the frequency spectrum into segments, assigning one or more bands to each segment, and establishing, for each segment, a set of bandwidths for the bands. The bandwidths may be fixed and uniformly distributed in any given segment. The bandwidths may be fixed and non-uniformly distributed in any segment. The bandwidths may be variable and non-uniformly distributed in any given segment.

摘要翻译： 用于识别用于计算语音编码器中的帧原型之间的线性相移的频带的方法和装置包括：通过将频谱划分成段，将一个或多个频带分配给每个分段来建立帧的原型的频谱，并建立 ，对于每个段，一组带宽的带宽。 带宽可以是固定的，并且均匀分布在任何给定的段中。 带宽可以是固定的，并且不均匀地分布在任何段中。 带宽可以是可变的，并且不均匀地分布在任何给定的段中。

公开(公告)号：US08660840B2

公开(公告)日：2014-02-25

申请号：US12190524

申请日：2008-08-12

申请人： Arasanipalai K. Ananthapadmanabhan ,  Sarath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. Dejaco

发明人： Arasanipalai K. Ananthapadmanabhan ,  Sarath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy ,  Andrew P. Dejaco

IPC分类号： G06F15/00 ,  G10L21/00 ,  G10L21/02 ,  G10L19/00

CPC分类号： G10L19/04 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/08 ,  G10L19/097 ,  G10L19/26 ,  G10L25/12

摘要： A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.

摘要翻译： 用于预测量化浊音的方法和装置包括参数发生器和量化器。 参数发生器被配置为从诸如有声语音的预测语音的帧中提取参数，并且将提取的信息变换为频域表示。 量化器被配置为从当前帧的参数中减去先前帧的参数的加权和。 量化器被配置为量化差值。 可以添加原型提取器以首先提取要由参数发生器处理的音调周期原型。

公开(公告)号：US06584438B1

公开(公告)日：2003-06-24

申请号：US09557283

申请日：2000-04-24

申请人： Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy

发明人： Sharath Manjunath ,  Pengjun Huang ,  Eddie-Lun Tik Choy

IPC分类号： G10L1300

CPC分类号： G10L21/02 ,  G10L19/005 ,  G10L19/097

摘要： A frame erasure compensation method in a variable-rate speech coder includes quantizing, with a first encoder, a pitch lag value for a current frame and a first delta pitch lag value equal to the difference between the pitch lag value for the current frame and the pitch lag value for the previous frame. A second, predictive encoder quantizes only a second delta pitch lag value for the previous frame (equal to the difference between the pitch lag value for the previous frame and the pitch lag value for the frame prior to that frame). If the frame prior to the previous frame is processed as a frame erasure, the pitch lag value for the previous frame is obtained by subtracting the first delta pitch lag value from the pitch lag value for the current frame. The pitch lag value for the erasure frame is then obtained by subtracting the second delta pitch lag value from the pitch lag value for the previous frame. Additionally, a waveform interpolation method may be used to smooth discontinuities caused by changes in the coder pitch memory.

摘要翻译： 可变速率语音编码器中的帧擦除补偿方法包括：利用第一编码器量化当前帧的音调滞后值，以及等于当前帧的音调滞后值与第 前一帧的音调滞后值。 第二预测编码器仅量化前一帧的第二增量音调滞后值（等于先前帧的音调滞后值与该帧之前的帧的音调滞后值之间的差）。 如果先前帧之前的帧被作为帧擦除处理，则通过从当前帧的音调滞后值中减去第一增量音调滞后值来获得先前帧的音调滞后值。 然后通过从前一帧的音调滞后值减去第二增量音调滞后值来获得擦除帧的音调滞后值。 此外，可以使用波形插值方法来平滑由编码器音调存储器的变化引起的不连续性。

公开(公告)号：US20090306976A1

公开(公告)日：2009-12-10

申请号：US12477574

申请日：2009-06-03

申请人： Christoph A. Joetten ,  Christian Sgraja ,  Georg Frank ,  Pengjun Huang ,  Christian Pietsch ,  Marc W. Werner ,  Ethan R. Duni ,  Eugene J. Baik

发明人： Christoph A. Joetten ,  Christian Sgraja ,  Georg Frank ,  Pengjun Huang ,  Christian Pietsch ,  Marc W. Werner ,  Ethan R. Duni ,  Eugene J. Baik

IPC分类号： G10L21/00 ,  H04L12/66

CPC分类号： H04L7/042 ,  G10L19/00 ,  G10L19/0019 ,  H04J3/0611 ,  H04L5/1415 ,  H04L5/1423 ,  H04L5/1453 ,  H04L7/027 ,  H04L25/03834 ,  H04L25/4902

摘要： A system is provided for transmitting information through a speech codec (in-band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise-like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions.