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1. 发明授权

US09037456B2 Method and apparatus for audio coding and decoding 有权
标题翻译：用于音频编码和解码的方法和装置
公开(公告)号：US09037456B2
公开(公告)日：2015-05-19
申请号：US13190517
申请日：2011-07-26
申请人： Udar Mittal , James P. Ashley , Jonathan A. Gibbs
发明人： Udar Mittal , James P. Ashley , Jonathan A. Gibbs
IPC分类号： G10L19/18 , G10L19/20
CPC分类号： G10L19/20
摘要： An encoder and decoder for processing an audio signal including generic audio and speech frames are provided herein. During operation, two encoders are utilized by the speech coder, and two decoders are utilized by the speech decoder. The two encoders and decoders are utilized to process speech and non-speech (generic audio) respectively. During a transition between generic audio and speech, parameters that are needed by the speech decoder for decoding frame of speech are generated by processing the preceding generic audio (non-speech) frame for the necessary parameters. Because necessary parameters are obtained by the speech coder/decoder, the discontinuities associated with prior-art techniques are reduced when transitioning between generic audio frames and speech frames.
摘要翻译：本文提供了一种用于处理包括通用音频和语音帧的音频信号的编码器和解码器。在操作期间，语音编码器利用两个编码器，语音解码器利用两个解码器。两个编码器和解码器分别用于处理语音和非语音（通用音频）。在通用音频和语音之间的转换期间，语音解码器为解码语音帧所需的参数是通过处理前面的通用音频（非语音）帧来产生的，用于必要的参数。由于必要的参数是由语音编码器/解码器获得的，当在通用音频帧和语音帧之间转换时，与现有技术相关联的不连续性被减少。

2. 发明授权

US08725500B2 Apparatus and method for encoding at least one parameter associated with a signal source 有权
标题翻译：用于编码与信号源相关联的至少一个参数的装置和方法
公开(公告)号：US08725500B2
公开(公告)日：2014-05-13
申请号：US12273974
申请日：2008-11-19
申请人： Jonathan A Gibbs , James P Ashley , Holly L Francois , Udar Mittal
发明人： Jonathan A Gibbs , James P Ashley , Holly L Francois , Udar Mittal
IPC分类号： G10L19/00
CPC分类号： G10L19/167
摘要： Apparatus (119) for encoding at least one parameter associated with a signal source for transmission over k frames to a decoder comprises a processor (119) which is configured in operation to assign a predetermined bit pattern to n bits associated with the at least one parameter of a first frame of k frames and set the n bits associated with the at least one parameter of each of k−1 subsequent frames to values, such that the values of the n bits of the k−1 subsequent frames represent the at least one parameter. The predetermined bit pattern indicates a start of the at least one parameter.
摘要翻译：用于将与用于在k个帧上传输的信号源相关联的至少一个参数编码到解码器的装置（119）包括处理器（119），其被配置用于将预定位模式分配给与所述至少一个参数相关联的n位并且将与k-1个后续帧中的每一个的至少一个参数相关联的n位设置为值，使得k-1个后续帧的n位的值表示至少一个参数。预定位模式指示至少一个参数的开始。

3. 发明授权

US08712766B2 Method and system for coding an information signal using closed loop adaptive bit allocation 有权
标题翻译：使用闭环自适应位分配对信息信号进行编码的方法和系统
公开(公告)号：US08712766B2
公开(公告)日：2014-04-29
申请号：US11383509
申请日：2006-05-16
申请人： James P. Ashley , Udar Mittal
发明人： James P. Ashley , Udar Mittal
IPC分类号： G10L19/00 , G10L19/12 , G10L19/02
CPC分类号： G10L19/12 , G10L19/24
摘要： A method and system for analysis-by-synthesis encoding of an information signal is provide. The encoder (400) can include the steps of generating a first synthetic signal based on a first pitch-related codebook (402), generating a second synthetic signal based on a second pitch-related codebook (404), selecting a codebook configuration parameter based on the reference signal and the first and second synthetic signals, and conveying the codebook configuration for use in reconstructing an estimate of the input signal. The encoder can include an error expression having an error bias (506) and a prediction gain having a prediction gain bias (508) for determining the codebook configuration. The encoder can employ variable length coding and combinatorial subframe coding (600) for efficiently compressing the codebook configuration parameter and codebook related parameters for one or more subframes.
摘要翻译：提供了一种用于信息信号的综合编码的方法和系统。编码器（400）可以包括以下步骤：基于第一音调相关码本（402）产生第一合成信号，基于第二音调相关码本（404）产生第二合成信号，基于码本配置参数选择参考信号和第一和第二合成信号，并且传送用于重建输入信号的估计的码本配置。编码器可以包括具有误差偏差（506）的误差表达式和具有用于确定码本配置的预测增益偏差（508）的预测增益。编码器可以采用可变长度编码和组合子帧编码（600）来有效地压缩一个或多个子帧的码本配置参数和码本相关参数。

4. 发明授权

US08576096B2 Apparatus and method for low complexity combinatorial coding of signals 有权
标题翻译：信号低复杂度组合编码的装置和方法
公开(公告)号：US08576096B2
公开(公告)日：2013-11-05
申请号：US12047589
申请日：2008-03-13
申请人： Udar Mittal , James P. Ashley
发明人： Udar Mittal , James P. Ashley
IPC分类号： H03M7/34
CPC分类号： H03M7/30 , G06F7/49942 , G10L19/035 , G10L19/20 , H03M7/3082
摘要： During operation of an encoder, a signal vector (x) is received. A first multi-precision operand (Ψ′k) will be generated based on the signal vector to be encoded. A mantissa operand and an exponent operand are generated. Both the mantissa operand and the exponent operand are representative of a second multi-precision operand that is based on the signal vector to be encoded. A portion of Ψ′k is selected to be modified based on the exponent operand. A part of Ψ′k is modified based on the mantissa operand to produce a modified multi-precision operand (Ψ′k+1). Finally, a multi-precision codeword is generated for use in a corresponding decoder.
摘要翻译：在编码器的操作期间，接收信号矢量（x）。将基于要编码的信号向量生成第一多精度操作数（Psi'k）。生成尾数操作数和指数操作数。尾数操作数和指数操作数均表示基于要编码的信号向量的第二多精度操作数。基于指数运算，选择Psi'k的一部分进行修改。 Psi'k的一部分基于尾数操作数被修改，以产生修改的多精度操作数（Psi'k + 1）。最后，生成用于相应解码器的多精度码字。

5. 发明申请

US20130268266A1 Method and Apparatus for Generating a Candidate Code-Vector to Code an Informational Signal 有权
标题翻译：用于生成候选码矢量以编码信息信号的方法和装置
公开(公告)号：US20130268266A1
公开(公告)日：2013-10-10
申请号：US13439121
申请日：2012-04-04
申请人： James P. Ashley , Udar Mittal
发明人： James P. Ashley , Udar Mittal
IPC分类号： G10L19/04
CPC分类号： G10L19/00 , G10L19/005 , G10L19/083 , G10L19/12 , G10L2019/0013
摘要： A method (300) and apparatus (100) generate a candidate code-vector to code an information signal. The method can include producing (310) a target vector from a received input signal. The method can include constructing (320) a plurality of inverse weighting functions based on the target vector. The method can include evaluating (330) an error value associated with each of the plurality of inverse weighting functions to produce a fixed codebook code-vector. The method can include generating (340) a codeword representative of the fixed codebook code-vector, where the codeword can be used by a decoder to generate an approximation of the input signal.
摘要翻译：方法（300）和装置（100）生成候选码矢量以对信息信号进行编码。该方法可以包括从接收到的输入信号产生（310）目标矢量。该方法可以包括基于目标矢量来构建（320）多个反加权函数。该方法可以包括评估（330）与多个逆加权函数中的每一个相关联的误差值，以产生固定码本码矢量。该方法可以包括生成（340）表示固定码本码矢量的码字，其中码字可由解码器用于产生输入信号的近似。

6. 发明授权

US08209190B2 Method and apparatus for generating an enhancement layer within an audio coding system 有权
标题翻译：用于在音频编码系统内生成增强层的方法和装置
公开(公告)号：US08209190B2
公开(公告)日：2012-06-26
申请号：US12187423
申请日：2008-08-07
申请人： James P. Ashley , Jonathan A. Gibbs , Udar Mittal
发明人： James P. Ashley , Jonathan A. Gibbs , Udar Mittal
IPC分类号： G10L21/00 , G10L21/04 , G10L19/00
CPC分类号： G10L19/24
摘要： During operation an input signal to be coded is received and coded to produce a coded audio signal. The coded audio signal is then scaled with a plurality of gain values to produce a plurality of scaled coded audio signals, each having an associated gain value and a plurality of error values are determined existing between the input signal and each of the plurality of scaled coded audio signals. A gain value is then chosen that is associated with a scaled coded audio signal resulting in a low error value existing between the input signal and the scaled coded audio signal. Finally, the low error value is transmitted along with the gain value as part of an enhancement layer to the coded audio signal.
摘要翻译：在操作期间，接收并编码要编码的输入信号以产生编码的音频信号。编码的音频信号然后用多个增益值进行缩放以产生多个缩放的经编码的音频信号，每个具有相关联的增益值，并且多个误差值被确定存在于输入信号与多个经缩放的编码音频信号然后选择与缩放的编码音频信号相关联的增益值，导致存在于输入信号和缩放的经编码音频信号之间的低误差值。最后，将低误差值与作为增强层的一部分的增益值一起传送到编码音频信号。

7. 发明授权

US08175888B2 Enhanced layered gain factor balancing within a multiple-channel audio coding system 有权
标题翻译：在多声道音频编码系统中增强分层增益因子平衡
公开(公告)号：US08175888B2
公开(公告)日：2012-05-08
申请号：US12345165
申请日：2008-12-29
申请人： James P. Ashley , Udar Mittal
发明人： James P. Ashley , Udar Mittal
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/008
摘要： During operation a multiple channel audio input signal is received and coded to generate a coded audio signal. A balance factor having balance factor components each associated with an audio signal of the multiple channel audio signal is generated. A gain value to be applied to the coded audio signal to generate an estimate of the multiple channel audio signal based on the balance factor and the multiple channel audio signal is determined, with the gain value configured to minimize a distortion value between the multiple channel audio signal and the estimate of the multiple channel audio signal. The representation of the gain value may be output for transmission and/or storage.
摘要翻译：在操作期间，接收并编码多声道音频输入信号以产生编码音频信号。产生具有各自与多声道音频信号的音频信号相关联的平衡因子分量的平衡因子。确定要应用于编码音频信号以产生基于平衡因子和多声道音频信号的多声道音频信号的估计的增益值，其中增益值被配置为最小化多声道音频之间的失真值信号和多声道音频信号的估计。可以输出增益值的表示用于传输和/或存储。

8. 发明申请

US20100169100A1 SELECTIVE SCALING MASK COMPUTATION BASED ON PEAK DETECTION 有权
标题翻译：基于峰值检测的选择性缩放掩码计算
公开(公告)号：US20100169100A1
公开(公告)日：2010-07-01
申请号：US12345141
申请日：2008-12-29
申请人： James P. Ashley , Udar Mittal
发明人： James P. Ashley , Udar Mittal
IPC分类号： G10L21/00
CPC分类号： G10L19/24
摘要： A set of peaks in a reconstructed audio vector Ŝ of a received audio signal is detected and a scaling mask ψ(Ŝ) based on the detected set of peaks is generated. A gain vector g* is generated based on at least the scaling mask and an index j representative of the gain vector. The reconstructed audio signal is scaled with the gain vector to produce a scaled reconstructed audio signal. A distortion is generated based on the audio signal and the scaled reconstructed audio signal. The index of the gain vector based on the generated distortion is output.
摘要翻译：检测接收到的音频信号的重构音频向量中的一组峰值，并且生成基于所检测的峰值组的缩放掩码ψ（Ŝ）。基于至少缩放掩码和表示增益矢量的索引j生成增益向量g *。重建音频信号用增益矢量进行缩放以产生缩放的重构音频信号。基于音频信号和缩放的重构音频信号产生失真。输出基于产生的失真的增益矢量的索引。

9. 发明申请

US20100125453A1 APPARATUS AND METHOD FOR ENCODING AT LEAST ONE PARAMETER ASSOCIATED WITH A SIGNAL SOURCE 有权
标题翻译：用于编码与信号源相关的至少一个参数的装置和方法
公开(公告)号：US20100125453A1
公开(公告)日：2010-05-20
申请号：US12273974
申请日：2008-11-19
申请人： Jonathan A. Gibbs , James P. Ashley , Holly L. Francois , Udar Mittal
发明人： Jonathan A. Gibbs , James P. Ashley , Holly L. Francois , Udar Mittal
IPC分类号： G10L19/00
CPC分类号： G10L19/167
摘要： Apparatus (119) for encoding at least one parameter associated with a signal source for transmission over k frames to a decoder comprises a processor (119) which is configured in operation to assign a predetermined bit pattern to n bits associated with the at least one parameter of a first frame of k frames and set the n bits associated with the at least one parameter of each of k−1 subsequent frames to values, such that the values of the n bits of the k−1 subsequent frames represent the at least one parameter. The predetermined bit pattern indicates a start of the at least one parameter.
摘要翻译：用于将与用于在k个帧上传输的信号源相关联的至少一个参数编码到解码器的装置（119）包括处理器（119），其被配置用于将预定位模式分配给与所述至少一个参数相关联的n位并且将与k-1个后续帧中的每一个的至少一个参数相关联的n位设置为值，使得k-1个后续帧的n位的值表示至少一个参数。预定位模式指示至少一个参数的开始。

10. 发明申请

US20090100121A1 APPARATUS AND METHOD FOR LOW COMPLEXITY COMBINATORIAL CODING OF SIGNALS 有权
标题翻译：低复杂度信号组合编码的装置和方法
公开(公告)号：US20090100121A1
公开(公告)日：2009-04-16
申请号：US12047589
申请日：2008-03-13
申请人： Udar Mittal , James P. Ashley
发明人： Udar Mittal , James P. Ashley
IPC分类号： G06F7/483
CPC分类号： H03M7/30 , G06F7/49942 , G10L19/035 , G10L19/20 , H03M7/3082
摘要： During operation of an encoder, a signal vector (x) is received. A first multi-precision operand (Ψ′k) will be generated based on the signal vector to be encoded. A mantissa operand and an exponent operand are generated. Both the mantissa operand and the exponent operand are representative of a second multi-precision operand that is based on the signal vector to be encoded. A portion of Ψ′k is selected to be modified based on the exponent operand. A part of Ψ′k is modified based on the mantissa operand to produce a modified multi-precision operand (Ψ′k+1). Finally, a multi-precision codeword is generated for use in a corresponding decoder.
摘要翻译：在编码器的操作期间，接收信号矢量（x）。将基于要编码的信号向量生成第一多精度操作数（Psi'k）。生成尾数操作数和指数操作数。尾数操作数和指数操作数均表示基于要编码的信号向量的第二多精度操作数。基于指数运算，选择Psi'k的一部分进行修改。 Psi'k的一部分基于尾数操作数被修改，以产生修改的多精度操作数（Psi'k + 1）。最后，生成用于相应解码器的多精度码字。

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