公开(公告)号：US20120123772A1

公开(公告)日：2012-05-17

申请号：US13295818

申请日：2011-11-14

申请人： Jes Thyssen ,  Huaiyu Zeng ,  Juin-Hwey Chen ,  Nelson Sollenberger ,  Xianxian Zhang

发明人： Jes Thyssen ,  Huaiyu Zeng ,  Juin-Hwey Chen ,  Nelson Sollenberger ,  Xianxian Zhang

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Multi-channel noise suppression systems and methods are described that omit the traditional delay-and-sum fixed beamformer in devices that include a primary speech microphone and at least one noise reference microphone with the desired speech being in the near-field of the device. The multi-channel noise suppression systems and methods use a blocking matrix (BM) to remove desired speech in the input speech signal received by the noise reference microphone to get a “cleaner” background noise component. Then, an adaptive noise canceler (ANC) is used to remove the background noise in the input speech signal received by the primary speech microphone based on the “cleaner” background noise component to achieve noise suppression. The filters implemented by the BM and ANC are derived using closed-form solutions that require calculation of time-varying statistics of complex frequency domain signals in the noise suppression system.

摘要翻译： 描述了多通道噪声抑制系统和方法，其省略了传统的延迟和总和固定波束形成器，其包括主话音麦克风和至少一个噪声参考麦克风，其中所需语音位于设备的近场。 多声道噪声抑制系统和方法使用阻塞矩阵（BM）去除由噪声参考麦克风接收的输入语音信号中的期望语音以获得“更干净”的背景噪声分量。 然后，使用自适应噪声消除器（ANC）来基于“更干净的”背景噪声分量来消除由主话音麦克风接收的输入语音信号中的背景噪声，以实现噪声抑制。 由BM和ANC实现的滤波器是使用需要在噪声抑制系统中计算复杂频域信号的时变统计的闭式解决方案导出的。

公开(公告)号：US08965757B2

公开(公告)日：2015-02-24

申请号：US13295818

申请日：2011-11-14

申请人： Jes Thyssen ,  Huaiyu Zeng ,  Juin-Hwey Chen ,  Nelson Sollenberger ,  Xianxian Zhang

发明人： Jes Thyssen ,  Huaiyu Zeng ,  Juin-Hwey Chen ,  Nelson Sollenberger ,  Xianxian Zhang

IPC分类号： G10L21/02 ,  G10L21/0208 ,  G10L21/0272 ,  H04R1/24 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Multi-channel noise suppression systems and methods are described that omit the traditional delay-and-sum fixed beamformer in devices that include a primary speech microphone and at least one noise reference microphone with the desired speech being in the near-field of the device. The multi-channel noise suppression systems and methods use a blocking matrix (BM) to remove desired speech in the input speech signal received by the noise reference microphone to get a “cleaner” background noise component. Then, an adaptive noise canceler (ANC) is used to remove the background noise in the input speech signal received by the primary speech microphone based on the “cleaner” background noise component to achieve noise suppression. The filters implemented by the BM and ANC are derived using closed-form solutions that require calculation of time-varying statistics of complex frequency domain signals in the noise suppression system.

摘要翻译： 描述了多通道噪声抑制系统和方法，其省略了传统的延迟和总和固定波束形成器，其包括主话音麦克风和至少一个噪声参考麦克风，其中所需语音位于设备的近场。 多声道噪声抑制系统和方法使用阻塞矩阵（BM）去除由噪声参考麦克风接收的输入语音信号中的期望语音以获得“更干净”的背景噪声分量。 然后，使用自适应噪声消除器（ANC）来基于“更干净的”背景噪声分量来消除由主话音麦克风接收的输入语音信号中的背景噪声，以实现噪声抑制。 由BM和ANC实现的滤波器是使用需要在噪声抑制系统中计算复杂频域信号的时变统计的闭式解决方案导出的。

公开(公告)号：US08977545B2

公开(公告)日：2015-03-10

申请号：US13295889

申请日：2011-11-14

申请人： Huaiyu Zeng ,  Jes Thyssen ,  Nelson Sollenberger ,  Juin-Hwey Chen ,  Xianxian Zhang

发明人： Huaiyu Zeng ,  Jes Thyssen ,  Nelson Sollenberger ,  Juin-Hwey Chen ,  Xianxian Zhang

IPC分类号： G10L21/02 ,  G10L21/0208 ,  G10L21/0272 ,  H04R1/24 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Described herein are multi-channel noise suppression systems and methods that are configured to detect and suppress wind and background noise using at least two spatially separated microphones: at least one primary speech microphone and at least one noise reference microphone. The multi-channel noise suppression systems and methods are configured, in at least one example, to first detect and suppress wind noise in the input speech signal picked up by the primary speech microphone and, potentially, the input speech signal picked up by the noise reference microphone. Following wind noise detection and suppression, the multi-channel noise suppression systems and methods are configured to perform further noise suppression in two stages: a first linear processing stage that includes a blocking matrix and an adaptive noise canceler, followed by a second non-linear processing stage.

摘要翻译： 这里描述的是多通道噪声抑制系统和方法，其被配置为使用至少两个空间分离的麦克风来检测和抑制风和背景噪声：至少一个主话音麦克风和至少一个噪声参考麦克风。 在至少一个示例中，多声道噪声抑制系统和方法被配置为首先检测和抑制由主话音麦克风拾取的输入语音信号中的风噪声，并且潜在地由噪声拾取的输入语音信号 参考麦克风 在风噪声检测和抑制之后，多声道噪声抑制系统和方法被配置为在两个阶段中执行进一步的噪声抑制：包括阻塞矩阵和自适应噪声消除器的第一线性处理级，随后是第二非线性 处理阶段。

公开(公告)号：US09330675B2

公开(公告)日：2016-05-03

申请号：US13250355

申请日：2011-09-30

申请人： Xianxian Zhang ,  Juin-Hwey Chen ,  Huaiyu Zeng ,  Jes Thyssen

发明人： Xianxian Zhang ,  Juin-Hwey Chen ,  Huaiyu Zeng ,  Jes Thyssen

IPC分类号： A61F11/06 ,  G10L21/0208 ,  G10L21/0272 ,  H04R1/24 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated microphones to pick up sound signals (e.g., speech), wind noise picked up by one of the microphones often will not be picked up (or at least not to the same extent) by the other microphone(s). Embodiments of methods and apparatuses that utilize this tact and others to effectively detect and suppress wind noise using multiple microphones that are spatially separated are described.

摘要翻译： 不同于声音的压力波，无处不在，由风引起的空气湍流通常是一个相当地方的事件。 因此，在使用两个或多个空间分离的麦克风拾取声音信号（例如语音）的系统中，由麦克风之一拾取的风噪声通常不会被拾取（或至少不相同的程度），由 另一个麦克风。 描述利用这种技巧和其他技术来有效地检测和抑制使用空间分离的多个麦克风的风噪声的方法和装置的实施例。

公开(公告)号：US20120121100A1

公开(公告)日：2012-05-17

申请号：US13250355

申请日：2011-09-30

申请人： Xianxian ZHANG ,  Juin-Hwey Chen ,  Huaiyu Zeng ,  Jes Thyssen

发明人： Xianxian ZHANG ,  Juin-Hwey Chen ,  Huaiyu Zeng ,  Jes Thyssen

IPC分类号： G10K11/16

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated microphones to pick up sound signals (e.g., speech), wind noise picked up by one of the microphones often will not be picked up (or at least not to the same extent) by the other microphone(s). Embodiments of methods and apparatuses that utilize this tact and others to effectively detect and suppress wind noise using multiple microphones that are spatially separated are described.

摘要翻译： 不同于声音的压力波，无处不在，由风引起的空气湍流通常是一个相当地方的事件。 因此，在使用两个或多个空间分离的麦克风拾取声音信号（例如语音）的系统中，由麦克风之一拾取的风噪声通常不会被拾取（或至少不相同的程度），由 另一个麦克风。 描述利用这种技巧和其他技术来有效地检测和抑制使用空间分离的多个麦克风的风噪声的方法和装置的实施例。

公开(公告)号：US08924204B2

公开(公告)日：2014-12-30

申请号：US13250291

申请日：2011-09-30

申请人： Juin-Hwey Chen ,  Jes Thyssen ,  Xianxian Zhang ,  Huaiyu Zeng

发明人： Juin-Hwey Chen ,  Jes Thyssen ,  Xianxian Zhang ,  Huaiyu Zeng

IPC分类号： G10L21/00 ,  G10L21/02 ,  G10L15/00 ,  G10L15/20 ,  G10L13/00 ,  G10L25/93 ,  G10L19/00 ,  G10L19/12 ,  G10L19/02 ,  G10L25/90 ,  G10L21/0208 ,  H04R1/24 ,  G10L13/06 ,  H04R3/00 ,  H04R29/00 ,  H03G3/00 ,  H04R5/00 ,  H04R5/02 ,  H03G3/20 ,  H04B15/00 ,  H04B17/00 ,  H04W24/00 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R1/245 ,  H04R2410/07

摘要： Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated microphones to pick up sound signals (e.g., speech), wind noise picked up by one of the microphones often will not be picked up (or at least not to the same extent) by the other microphone(s). Embodiments of methods and apparatuses that utilize this fact and others to effectively detect and suppress wind noise using multiple microphones that are spatially separated are described.

摘要翻译： 不同于声音的压力波，无处不在，由风引起的空气湍流通常是一个相当地方的事件。 因此，在使用两个或多个空间分离的麦克风拾取声音信号（例如语音）的系统中，由麦克风之一拾取的风噪声通常不会被拾取（或至少不相同的程度），由 另一个麦克风。 描述了利用这一事实和其他方法和装置来有效地检测和抑制使用空间分离的多个麦克风的风噪声的方法和装置的实施例。

公开(公告)号：US08687570B2

公开(公告)日：2014-04-01

申请号：US12570865

申请日：2009-09-30

申请人： Huaiyu Zeng ,  Nelson Sollenberger ,  Arie Heiman

发明人： Huaiyu Zeng ,  Nelson Sollenberger ,  Arie Heiman

IPC分类号： H04W4/00

CPC分类号： H04W28/06 ,  H04L1/0072 ,  H04L1/08 ,  H04L25/03318 ,  H04W84/04

摘要： Methods and systems for decoding control channels using repetition redundancy may include generating enhanced soft bits by combining soft bits generated from the two GSM SACCH blocks. Combining may comprise averaging soft bits in one GSM SACCH block and corresponding soft bits from the other GSM SACCH block. Information in one GSM SACCH block may be repeated in the other GSM SACCH block. If repetition is detected, the enhanced soft bits may comprise enhanced soft bits for at least a portion of level 1 region and level 3 region of the GSM SACCH block. Otherwise, the generated enhanced soft bits may comprise enhanced soft bits for at least a portion of level 3 region of the GSM SACCH block.

摘要翻译： 用于使用重复冗余解码控制信道的方法和系统可以包括通过组合从两个GSM SACCH块产生的软比特来生成增强的软比特。 组合可以包括在一个GSM SACCH块中平均软比特和来自另一个GSM SACCH块的相应软比特。 一个GSM SACCH块中的信息可以在另一个GSM SACCH块中重复。 如果检测到重复，则增强的软比特可以包括用于GSM SACCH块的1级区域和3级区域的至少一部分的增强的软比特。 否则，所生成的增强软比特可以包括用于GSM SACCH块的3级区域的至少一部分的增强的软比特。

公开(公告)号：US08010137B2

公开(公告)日：2011-08-30

申请号：US12555795

申请日：2009-09-08

申请人： Huaiyu Zeng ,  Nelson Sollenberger

发明人： Huaiyu Zeng ,  Nelson Sollenberger

IPC分类号： H04B15/00

CPC分类号： H04L1/20 ,  H04B17/309 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336

摘要： Various aspects of a method and system for adaptive multi rate and measurements adaptation may include a processor that enables computation of at least one signal level measurement for at least one received signal. The processor may enable cancelling of interfering signals received in addition to the received signal based on processing of a received bit sequence using a first burst process operation (BP) in a first decoding algorithm that utilizes SAIC operations. The processor may also enable cancelling of noise signals received in addition to the received signal based on processing the received bit sequence using a second BP operation that utilizes redundancy and imposes a physical constraint during decoding. The processor may also enable adjustment of the computed at least one signal level measurement.

摘要翻译： 用于自适应多速率和测量自适应的方法和系统的各个方面可以包括能够对至少一个接收到的信号进行至少一个信号电平测量的计算的处理器。 处理器可以使用在利用SAIC操作的第一解码算法中的第一突发处理操作（BP），基于接收到的比特序列的处理来消除接收到的接收信号之外的干扰信号。 处理器还可以基于使用利用冗余并且在解码期间施加物理约束的第二BP操作来处理所接收的比特序列，来除了接收到的信号之外还能够接收到的噪声信号。 处理器还可以使得能够调整所计算的至少一个信号电平测量。

公开(公告)号：US08811602B2

公开(公告)日：2014-08-19

申请号：US13174148

申请日：2011-06-30

申请人： Prakash Khanduri ,  Nelson Sollenberger ,  Huaiyu Zeng

发明人： Prakash Khanduri ,  Nelson Sollenberger ,  Huaiyu Zeng

IPC分类号： H04M9/08 ,  H04B3/20

CPC分类号： H04M9/082

摘要： A telecommunication system including a fall duplex speakerphone, comprising a first microphone to generate a coupled signal including uplink information and non-linear distortion sensed by the first microphone in a speaker phone mode, a second microphone to generate a reference signal including downlink information and the non-linear distortion sensed by the second microphone in the speaker phone mode, and an acoustic echo canceller (AEC) to receive the coupled signal from the first microphone, to receive the reference signal from the second microphone, and to cancel out the non-linear distortion included in the coupled signal based on the non-linear distortion included in the reference signal.

摘要翻译： 一种包括秋季双工免提电话的电信系统，包括：第一麦克风，用于产生包括在扬声器电话模式中由所述第一麦克风感测的上行链路信息和非线性失真的耦合信号;第二麦克风，用于生成包括下行链路信息的参考信号;以及 在扬声器电话模式下由第二麦克风感测到的非线性失真，以及声学回声消除器（AEC），用于接收来自第一麦克风的耦合信号，以接收来自第二麦克风的参考信号， 基于参考信号中包含的非线性失真，包含在耦合信号中的线性失真。

公开(公告)号：US08379568B2

公开(公告)日：2013-02-19

申请号：US12564438

申请日：2009-09-22

申请人： Huaiyu Zeng ,  Nelson Sollenberger ,  Arie Heiman

发明人： Huaiyu Zeng ,  Nelson Sollenberger ,  Arie Heiman

IPC分类号： H04J3/08 ,  H04W4/00 ,  H04J3/00 ,  H04J3/06 ,  H04B7/212

CPC分类号： H04L1/0054 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0072 ,  H04L1/08

摘要： A method and system for decoding SACCH control channels in GSM-based systems with partial combining using weighted SNR may comprise combining least one weighted bit of a GSM slow associated control channel (SACCH) frame with at least one weighted bit of a subsequent GSM SACCH block based on burst signal to noise ratios (SNRs) of the GSM SACCH block and the subsequent GSM SACCH block. The burst SNR may be determined from a mid-amble of the GSM SACCH block and its subsequent GSM SACCH block. The burst SNRs of the GSM SACCH block may be translated to a corresponding plurality of scaling factors. At least a first weighting factor may be determined from the corresponding plurality of scaling factors. At least one weighted bit of the GSM SACCH block is determined utilizing the determined first weighting factor.