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1. 发明申请

US20060115077A1 Echo canceller employing dual-H architecture having variable adaptive gain settings 审中-公开
公开(公告)号：US20060115077A1
公开(公告)日：2006-06-01
申请号：US11329597
申请日：2006-01-10
申请人： Kenneth Laberteaux , Richard Younce , Bruce Dunne , David Farrell
发明人： Kenneth Laberteaux , Richard Younce , Bruce Dunne , David Farrell
IPC分类号： H04M9/08
CPC分类号： H04M9/082 , H04B3/23
摘要： An echo canceller circuit for use in an echo canceller system is set forth that provides sensitive double-talk detection. The echo canceller circuit comprises a second digital filter having adaptive tap coefficients to stimulate an echo response occurring during the call. The adaptive tap coefficients of the second digital filter are updated over the duration of the call using a Least Mean Squares process having an adaptive gain a. A channel condition detector is used to detect channel conditions during the call. The channel condition detector is responsive to detected channel conditions for changing the adaptive gain a during the call. For example, the channel condition detector may detect the presence of a double-talk condition and set the adaptive gain a to zero. Similarly, the channel condition detector may detect the occurrence of a high background noise condition and set the adaptive gain a to a level less than 1 that is dependent on the detected level of the background noise. Other similar channel conditions and corresponding adaptive gain settings may likewise be utilized.

2. 发明申请

US20060217972A1 Method and apparatus for modifying an encoded signal 审中-公开
标题翻译：修改编码信号的方法和装置
公开(公告)号：US20060217972A1
公开(公告)日：2006-09-28
申请号：US11342259
申请日：2006-01-27
申请人： Rafid Sukkar , Richard Younce , Peng Zhang , Michael Horning , Robert Cochran , Stephen Griffith , Leni Thomas , Brian McConnell
发明人： Rafid Sukkar , Richard Younce , Peng Zhang , Michael Horning , Robert Cochran , Stephen Griffith , Leni Thomas , Brian McConnell
IPC分类号： G10L19/00
CPC分类号： G10L21/02
摘要： Signal Quality Enhancement is performed directly in a coded domain. Coded Domain-Signal Quality Enhancement (CD-SQE) is applied to an encoded signal populated substantially with encoded signal bits to produce an enhanced encoded signal. The enhanced encoded signal is outputted. Thus, the signal does not have to go through intermediate decoder/re-encoder(s), which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-SQE system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：信号质量增强直接在编码域中执行。编码域信号质量增强（CD-SQE）被应用于基本上用编码信号位填充的编码信号，以产生增强的编码信号。输出增强编码信号。因此，信号不必经过中间解码器/重新编码器，这可能降低整体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-SQE系统可以用于在诸如第三代（3G）无线网络的编码域中传送信号的任何网络中。

3. 发明申请

US20060217974A1 Method and apparatus for adaptive gain control 有权
标题翻译：用于自适应增益控制的方法和装置
公开(公告)号：US20060217974A1
公开(公告)日：2006-09-28
申请号：US11165599
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： G10L19/14
CPC分类号： G10L21/0205 , G10L19/083 , G10L21/0364
摘要： Adaptive Gain Control (AGC) is performed directly in a coded domain. A Coded Domain Adaptive Gain Control (CD-AGC) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-VQE system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal. In a decoded state, the second encoded signal approximates a target signal that is a function of two signals, including the first encoded signal and a third encoded signal, in at least a partially decoded states. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-AGC system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：自适应增益控制（AGC）直接在编码域中执行。编码域自适应增益控制（CD-AGC）系统修改第一编码信号的至少一个参数，导致相应的修改参数。 CD-VQE系统用修改的参数替换第一编码信号的参数，从而产生第二编码信号。在解码状态下，第二编码信号在至少部分解码状态下近似作为包括第一编码信号和第三编码信号的两个信号的函数的目标信号。因此，第一编码信号不必经历中间解码/重编码处理，这可能降低总体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-AGC系统可以用于信号在诸如第三代（3G）无线网络的编码域中传送的任何网络中。

4. 发明申请

US20060215683A1 Method and apparatus for voice quality enhancement 审中-公开
标题翻译：提高语音质量的方法和装置
公开(公告)号：US20060215683A1
公开(公告)日：2006-09-28
申请号：US11165562
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： H04J1/16 , H04L12/26 , H04J3/16 , H04Q7/20 , H04Q7/00
CPC分类号： H04B3/20 , G10L19/12 , G10L21/0364
摘要： Voice Quality Enhancement (VQE) is performed directly in a coded domain. A Coded Domain Voice Quality Enhancement (CD-VQE) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-VQE system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal. In a decoded state, the second encoded signal approximates a target signal that is a function of at least the first encoded signal in at least a partially decoded state. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. The CD-VQE system may cascade functions. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-VQE system can be used in networks in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：语音质量增强（VQE）直接在编码域中执行。编码域语音质量增强（CD-VQE）系统修改至少一个第一编码信号的参数，导致相应的修改参数。 CD-VQE系统用修改的参数替换第一编码信号的参数，从而产生第二编码信号。在解码状态下，第二编码信号在至少部分解码状态下近似至少是第一编码信号的函数的目标信号。因此，第一编码信号不必经历中间解码/重编码处理，这可能降低总体语音质量。 CD-VQE系统可以级联功能。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-VQE系统可用于在诸如第三代（3G）无线网络的编码域中传送信号的网络中。

5. 发明授权

US07039181B2 Consolidated voice activity detection and noise estimation 有权
标题翻译：综合语音活动检测和噪声估计
公开(公告)号：US07039181B2
公开(公告)日：2006-05-02
申请号：US10331852
申请日：2002-12-30
申请人： Daniel Marchok , Richard Younce , Charles Gritton
发明人： Daniel Marchok , Richard Younce , Charles Gritton
IPC分类号： H04M9/08
CPC分类号： G10L25/78 , G10L15/30 , G10L19/012 , G10L19/18 , G10L21/0364 , G10L2021/02082 , H04B3/23 , H04M9/082
摘要： Methods and apparatus compensating for background noise associated with a transmitted signal. In a first embodiment, an adder combines an echo estimate with the the transmitted signal to form a processed signal, a noise reduction circuit uses a background noise estimate to subtract the background noise from the processed signal, and a non-linear processor uses the background noise estimate to combine a compensating background noise signal with the proccssed signal. In another embodiment, the noise reduction circuit divides the processed signal into sub-bands. With variations of an embodiment, the nonlinear processor is a sub-band non-linear processor, the processed signal is divided into sub-bands, and the background estimate includes sub-band noise estimates.
摘要翻译：补偿与发射信号相关的背景噪声的方法和装置。在第一实施例中，加法器将回波估计与所发送的信号组合以形成经处理的信号，噪声降低电路使用背景噪声估计来从经处理的信号中减去背景噪声，非线性处理器使用背景噪声估计来将补偿背景噪声信号与经验信号组合。在另一个实施例中，噪声降低电路将经处理的信号划分成子带。利用实施例的变型，非线性处理器是子带非线性处理器，处理后的信号被划分为子带，背景估计包括子带噪声估计。

6. 发明申请

US20060263005A1 Optical dispersion compensation 失效
标题翻译：光分散补偿
公开(公告)号：US20060263005A1
公开(公告)日：2006-11-23
申请号：US11281931
申请日：2005-11-16
申请人： Kimon Papakos , Kenneth Fisher , Richard Younce
发明人： Kimon Papakos , Kenneth Fisher , Richard Younce
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： H04B10/25133
摘要： A method of providing dispersion compensation includes providing a dispersion signal indicative of an amount of dispersion for at least one channel of a multi-channel optical signal. A dispersion compensator is controlled in accordance with the dispersion signal to optically compensate for the dispersion of the optical signal.
摘要翻译：提供色散补偿的方法包括提供指示多通道光信号的至少一个通道的色散量的色散信号。色散补偿器根据色散信号进行控制，以光学补偿光信号的色散。

7. 发明申请

US20060217988A1 Method and apparatus for adaptive level control 审中-公开
标题翻译：用于自适应电平控制的方法和装置
公开(公告)号：US20060217988A1
公开(公告)日：2006-09-28
申请号：US11165607
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/173 , G10L21/02
摘要： Adaptive Level Control (ALC) is performed directly in a coded domain. A Coded Domain Adaptive Level Control (CD-ALC) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-ALC system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal. In a decoded state, the second encoded signal approximates a target signal that is a function of the first encoded signal in at least a partially decoded state. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-ALC system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：自适应电平控制（ALC）直接在编码域中执行。编码域自适应级别控制（CD-ALC）系统修改至少一个第一编码信号的参数，导致相应的修改参数。 CD-ALC系统用修改的参数替换第一编码信号的参数，导致第二编码信号。在解码状态下，第二编码信号在至少部分解码状态下近似作为第一编码信号的函数的目标信号。因此，第一编码信号不必经历中间解码/重编码处理，这可能降低总体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-ALC系统可以用于在诸如第三代（3G）无线网络的编码域中传送信号的任何网络中。

8. 发明申请

US20060217971A1 Method and apparatus for modifying an encoded signal 审中-公开
标题翻译：修改编码信号的方法和装置
公开(公告)号：US20060217971A1
公开(公告)日：2006-09-28
申请号：US11159845
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： G10L19/04
CPC分类号： G10L19/173 , G10L21/02
摘要： Voice Quality Enhancement is performed directly in a coded domain. At least one parameter of a first encoded signal is modified, which results in a corresponding at least one modified parameter. The at least one parameter of the first encoded signal is replaced with the at least one modified parameter, which results in a second encoded signal which, in a decoded state, approximates a target signal that is a function of at least the first encoded signal in at least a partially decoded state. Thus, the signal does not have to go through intermediate decoder/re-encoder(s), which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-VQE system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：语音质量增强直接在编码域中执行。修改第一编码信号的至少一个参数，这导致对应的至少一个修改参数。第一编码信号的至少一个参数被替换为至少一个修改的参数，其导致第二编码信号，其在解码状态下近似于至少是第一编码信号的函数的目标信号至少部分解码状态。因此，信号不必经过中间解码器/重新编码器，这可能降低整体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-VQE系统可以用于信号在诸如第三代（3G）无线网络的编码域中传送的任何网络中。

9. 发明申请

US20060217969A1 Method and apparatus for echo suppression 审中-公开
标题翻译：用于回波抑制的方法和装置
公开(公告)号：US20060217969A1
公开(公告)日：2006-09-28
申请号：US11158925
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： G10L19/00
CPC分类号： H04B3/23 , G10L2021/02082 , H04B3/231
摘要： Acoustic Echo Suppression (AES) or ES is performed directly in a coded domain. A Coded Domain Acoustic Echo Suppression (CD-AES) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-AES system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal which, in a decoded state, approximates a target signal that is a function of two signals, including the first encoded signal and a third encoded signal, in at least partially decoded states. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-AES system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：声学回波抑制（AES）或ES直接在编码域中执行。编码域声学回声抑制（CD-AES）系统修改至少一个第一编码信号的参数，产生相应的修改参数。 CD-AES系统用修改的参数代替第一编码信号的参数，导致第二编码信号，其在解码状态下近似作为两个信号的函数的目标信号，包括第一编码信号和第三编码信号，处于至少部分解码状态。因此，第一编码信号不必经历中间解码/重编码处理，这可能降低总体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-AES系统可以用于在诸如第三代（3G）无线网络的编码域中传送信号的任何网络中。

10. 发明申请

US20060217970A1 Method and apparatus for noise reduction 审中-公开
标题翻译：减噪方法和装置
公开(公告)号：US20060217970A1
公开(公告)日：2006-09-28
申请号：US11159843
申请日：2005-06-22
申请人： Rafid Sukkar , Richard Younce , Peng Zhang
发明人： Rafid Sukkar , Richard Younce , Peng Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/173 , G10L21/0208
摘要： Noise Reduction (NR) is performed directly in a coded domain. A Coded Domain Noise Reduction (CD-NR) system modifies at least one parameter of a first encoded signal, resulting in corresponding modified parameter(s). The CD-NR system replaces the parameter(s) of the first encoded signal with the modified parameter(s), resulting in a second encoded signal which, in a decoded state, approximates a target signal that is a function of the first encoded signal in at least a partially decoded state. Thus, the first encoded signal does not have to go through intermediate decode/re-encode processes, which can degrade overall speech quality. Computational resources required for a complete re-encoding are not needed. Overall delay of the system is minimized. The CD-NR system can be used in any network in which signals are communicated in a coded domain, such as a Third Generation (3G) wireless network.
摘要翻译：降噪（NR）直接在编码域中执行。编码域降噪（CD-NR）系统修改第一编码信号的至少一个参数，导致相应的修改参数。 CD-NR系统用修改的参数替换第一编码信号的参数，导致第二编码信号，其在解码状态下近似作为第一编码信号的函数的目标信号至少部分解码状态。因此，第一编码信号不必经历中间解码/重编码处理，这可能降低总体语音质量。不需要完全重新编码所需的计算资源。系统的整体延迟最小化。 CD-NR系统可以用于在诸如第三代（3G）无线网络的编码域中传送信号的任何网络中。

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