公开(公告)号：US20050085237A1

公开(公告)日：2005-04-21

申请号：US10862714

申请日：2004-06-07

申请人： Baoguo Yang ,  Nelson Sollenberger

发明人： Baoguo Yang ,  Nelson Sollenberger

IPC分类号： H03H17/02 ,  H04B1/10 ,  H04Q7/20

CPC分类号： H04B1/1027 ,  H03H17/0286 ,  H03H17/0294

摘要： A method to perform adaptive channel filtering on a Radio Frequency (RF) bursts in a cellular wireless communication system. This method first filters an input signal with a first stage filter having a first bandwidth to produce a first stage output signal. Then the first stage output signal is filtered with a second stage filter having a second bandwidth narrower than that of the first stage filter to produce a multi-stage output signal. A comparison between first stage performance measurements and multi-stage performance measurements determine the mode of operation of the adaptive multistage filter. A first mode of operation, selected when the first stage performance measurement compares favorably with the second stage performance measurement, selects the output of the first stage filter as the output of the multi-stage filter. Otherwise, a second mode of operation selects the output of the second stage filter as the output of the multi-stage filter.

摘要翻译： 一种在蜂窝无线通信系统中对射频（RF）突发执行自适应信道滤波的方法。 该方法首先用具有第一带宽的第一级滤波器对输入信号进行滤波以产生第一级输出信号。 然后第一级输出信号用具有比第一级滤波器窄的第二带宽的第二级滤波器滤波，以产生多级输出信号。 第一阶段性能测量和多级性能测量之间的比较确定了自适应多级滤波器的工作模式。 当第一级性能测量与第二级性能测量相比较时选择的第一操作模式选择第一级滤波器的输出作为多级滤波器的输出。 否则，第二操作模式选择第二级滤波器的输出作为多级滤波器的输出。

公开(公告)号：US20130150112A1

公开(公告)日：2013-06-13

申请号：US13481692

申请日：2012-05-25

申请人： Xiao-Feng Qi ,  Nelson Sollenberger ,  Wei Luo ,  Kaiping Li

发明人： Xiao-Feng Qi ,  Nelson Sollenberger ,  Wei Luo ,  Kaiping Li

IPC分类号： H04W56/00 ,  H04W48/16 ,  H04W88/06

CPC分类号： H04W56/0015 ,  H04W52/0216 ,  H04W76/28 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/168 ,  Y02D70/24

摘要： A technique for time tracking helps a mobile communication device with multiple SIMs to more accurately maintain synchronization with a base station. By utilizing synchronization information from both SIMs, the technique is able to more frequently and more accurately adjust timing information for each SIM. As a result, the mobile communication device exhibits an increased ability to accurately synchronize without the need for a higher precision reference or increased power consumption.

摘要翻译： 用于时间跟踪的技术帮助具有多个SIM的移动通信设备更准确地保持与基站的同步。 通过利用来自两个SIM的同步信息，该技术能够更频繁和更准确地调整每个SIM的定时信息。 结果，移动通信设备表现出增加的准确同步的能力，而不需要更高精度的参考或增加的功耗。

公开(公告)号：US20130142273A1

公开(公告)日：2013-06-06

申请号：US13433683

申请日：2012-03-29

申请人： Nelson Sollenberger ,  Rami Mehio ,  Wei Luo ,  Severine Catreux ,  Sean Truong ,  Oghenekome Oteri

发明人： Nelson Sollenberger ,  Rami Mehio ,  Wei Luo ,  Severine Catreux ,  Sean Truong ,  Oghenekome Oteri

IPC分类号： H04B15/00

CPC分类号： H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

摘要： Disclosed are various embodiments providing adaptive path selection for interference cancellation for wireless communication devices. Signal strength metrics are obtained for each of multiple signal paths. One or more of the signal paths are selected as cancellation candidates in response to determining that the signal paths are associated with a strong interfering path based at least in part on the signal strength metrics for the signal paths and threshold criteria. Cancellation is enabled for an estimated signal generated using the signal paths in response to the signal paths being selected as cancellation candidates.

摘要翻译： 公开了提供用于无线通信设备的干扰消除的自适应路径选择的各种实施例。 对于多个信号路径中的每一个获得信号强度度量。 响应于至少部分地基于信号路径的信号强度度量和阈值标准确定信号路径与强干扰路径相关联，将一个或多个信号路径选择为抵消候选。 响应于被选择作为取消候选的信号路径，对使用信号路径产生的估计信号进行取消。

公开(公告)号：US08452428B2

公开(公告)日：2013-05-28

申请号：US12268305

申请日：2008-11-10

申请人： Hongwei Kong ,  Nelson Sollenberger ,  Todd L. Brooks ,  Yee Ling Cheung ,  Xicheng Jiang

发明人： Hongwei Kong ,  Nelson Sollenberger ,  Todd L. Brooks ,  Yee Ling Cheung ,  Xicheng Jiang

IPC分类号： G06F17/00 ,  G06F13/24 ,  G06F13/32 ,  G01R27/08 ,  H04M1/00

CPC分类号： G06F13/4072

摘要： Aspects of a method and system for detecting and identifying electronic accessories or peripherals utilizing a hardware audio CODEC are provided. In this regard, a hardware audio CODEC may be operable to compare one or more voltages on one or more biased pins of an accessory or peripheral port to one or more reference voltages and generate one or more digital representations of the one or more voltages on the biased one or more pins. An accessory or peripheral attached to the accessory or peripheral port may be identified based on the comparison and/or the generated one or more digital representations. The one or more bias voltages may be controlled based on a result of the comparison and/or the generated digital representations. The one or more bias voltages may be reduced after an attached accessory or peripheral has been identified.

摘要翻译： 提供了利用硬件音频CODEC来检测和识别电子附件或外围设备的方法和系统的方面。 在这方面，硬件音频编解码器可以用于将附件或外围端口的一个或多个偏置引脚上的一个或多个电压与一个或多个参考电压进行比较，并且生成一个或多个电压的一个或多个数字表示 偏置一个或多个引脚。 可以基于比较和/或所生成的一个或多个数字表示来识别附接到附件或外围端口的附件或外围设备。 可以基于比较的结果和/或所生成的数字表示来控制一个或多个偏置电压。 在附加附件或外围设备被识别之后，可以减小一个或多个偏置电压。

公开(公告)号：US08306159B2

公开(公告)日：2012-11-06

申请号：US12880827

申请日：2010-09-13

申请人： Arie Heiman ,  Huaiyu Hanks Zeng ,  Jie Lai ,  Yueheng Sun ,  Nelson Sollenberger ,  Yossy Pruzanski

发明人： Arie Heiman ,  Huaiyu Hanks Zeng ,  Jie Lai ,  Yueheng Sun ,  Nelson Sollenberger ,  Yossy Pruzanski

IPC分类号： H04L27/06

CPC分类号： H04L1/0061 ,  H03M13/09 ,  H03M13/4115 ,  H03M13/4169 ,  H04L1/005 ,  H04L1/0054

摘要： Aspects of a method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process are provided. A wireless receiver may decode bit sequences based on a first decoding algorithm that may utilize redundancy in the data and that may impose physical constraints. The receiver may also decode a received bit sequence based on a second decoding algorithm that utilizes SAIC. Received data may be processed in a burst process portion in either decoding algorithm. Burst processed data from one of the decoding algorithms may be selected based on signal-to-noise ratio and/or received signal level measurements. The selected burst processed data may be communicated to a frame processing portion of the corresponding decoding algorithm.

摘要翻译： 提供了使用突发过程解码单天线干扰消除（SAIC）和冗余处理适配的方法和系统的方面。 无线接收机可以基于可以利用数据中的冗余并且可能施加物理约束的第一解码算法对比特序列进行解码。 接收机还可以基于利用SAIC的第二解码算法对接收到的比特序列进行解码。 可以在解码算法中的突发处理部分中处理接收的数据。 可以基于信噪比和/或接收信号电平测量来选择来自解码算法之一的突发处理数据。 所选择的突发处理数据可以被传送到对应的解码算法的帧处理部分。

公开(公告)号：US08284819B2

公开(公告)日：2012-10-09

申请号：US12582771

申请日：2009-10-21

申请人： Mark Hahm ,  Wei Luo ,  Arkady Molev-Shteiman ,  Hongwei Kong ,  Xiao-Feng Qi ,  Li Fung Chang ,  Nelson Sollenberger

发明人： Mark Hahm ,  Wei Luo ,  Arkady Molev-Shteiman ,  Hongwei Kong ,  Xiao-Feng Qi ,  Li Fung Chang ,  Nelson Sollenberger

IPC分类号： H04B1/00

CPC分类号： H04B1/712 ,  H04J11/0063 ,  H04J13/0044 ,  H04J13/0048

摘要： Aspects of a method and system for interference suppression in WCDMA systems may include one or more circuits that are operable to receive a plurality of multipath signals via one or more receiving antennas. A plurality of weighting factor values may be computed based on the received multipath signals. Estimated signals may be based on the weighting factor values. Residual signals may be generated based on received signals and the estimated signals. Addback signals may be generated based on the estimated signals and the residual signals. Updated estimated signals may be generated based on the addback signals and the weighting factor values. Incremental signals may be generated based on the updated estimated signals and addback signals. Updated residual signals may be generated based on the incremental signals and previous residual signals. The interference suppressed signals may be generated based on the updated residual signals and updated estimated signals.

摘要翻译： 用于WCDMA系统中的干扰抑制的方法和系统的方面可以包括可操作以经由一个或多个接收天线接收多个多径信号的一个或多个电路。 可以基于接收的多路径信号来计算多个加权因子值。 估计信号可以基于加权因子值。 可以基于接收的信号和估计的信号来产生残余信号。 可以基于估计的信号和残留信号来生成附加信号。 可以基于附加信号和加权因子值来生成更新的估计信号。 可以基于更新的估计信号和加法信号来产生增量信号。 可以基于增量信号和先前的剩余信号来生成更新的残留信号。 可以基于更新的残差信号和更新的估计信号来产生干扰抑制信号。

公开(公告)号：US08208660B2

公开(公告)日：2012-06-26

申请号：US12248458

申请日：2008-10-09

申请人： Nelson Sollenberger ,  Radhakrishnan Kuzhipatt ,  Hongwei Kong

发明人： Nelson Sollenberger ,  Radhakrishnan Kuzhipatt ,  Hongwei Kong

IPC分类号： H03G3/00

CPC分类号： H03G3/3026

摘要： In a method and system for audio level detection and control, an amplitude of an audio signal may be compared to a threshold and an attenuation applied to the audio signal may be adjusted based on the comparison. In instances that the amplitude of the audio signal is greater than or equal to the threshold the adjustment may comprise increasing a first attenuation factor until the amplitude of the audio signal is less than the threshold. The first attenuation factor may be subsequently decreased until the amplitude of the audio signal is greater than or equal to the threshold or until the first attenuation factor is equal to zero. The attenuation of the audio signal may be controlled via a digital gain circuit within the hardware audio CODEC, wherein an overall attenuation factor of the digital gain circuit is a sum of the first attenuation factor and a second attenuation factor.

摘要翻译： 在用于音频电平检测和控制的方法和系统中，音频信号的幅度可以与阈值进行比较，并且可以基于比较来调整施加到音频信号的衰减。 在音频信号的幅度大于或等于阈值的情况下，调整可以包括增加第一衰减因子，直到音频信号的幅度小于阈值。 可以随后减小第一衰减因子，直到音频信号的幅度大于或等于阈值，或直到第一衰减因子等于零为止。 可以经由硬件音频CODEC内的数字增益电路来控制音频信号的衰减，其中数字增益电路的总体衰减因子是第一衰减因子和第二衰减因子之和。

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：US08046662B2

公开(公告)日：2011-10-25

申请号：US11325720

申请日：2006-01-05

申请人： Arie Heiman ,  Nelson Sollenberger ,  Arkady Molev-Shteiman

发明人： Arie Heiman ,  Nelson Sollenberger ,  Arkady Molev-Shteiman

IPC分类号： H03M13/00

CPC分类号： H03M13/09 ,  H03M13/175 ,  H03M13/3738 ,  H03M13/41 ,  H03M13/4115 ,  H03M13/4169 ,  H03M13/6337 ,  H03M13/6536 ,  H04L1/005 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0072

摘要： A method and system for decoding control data in GSM-based systems using inherent redundancy and physical constraints are presented. At least one estimated GSM-based bit sequence may be selected by performing searches that start from trellis junctions determined by the decoding algorithm. The estimated bit sequences may be selected based on corresponding redundancy verification parameters. At least one physical constraint test may be performed on the selected estimated GSM-based bit sequences to select a decoded output GSM-based bit sequence. A multilayer decoding process may comprise a burst process and a frame process. Results from a first burst process may be utilized to generate a decoded GSM bit sequence in the frame process. The frame process may utilize redundancy information and physical constraints to improve the performance of a decoding algorithm.

摘要翻译： 提出了一种使用固有冗余和物理约束对基于GSM的系统中的控制数据进行解码的方法和系统。 可以通过执行从由解码算法确定的网格结开始的搜索来选择至少一个估计的基于GSM的比特序列。 可以基于相应的冗余验证参数来选择估计的比特序列。 可以对所选择的估计的基于GSM的比特序列执行至少一个物理约束测试，以选择解码的输出基于GSM的比特序列。 多层解码过程可以包括突发过程和帧过程。 来自第一突发处理的结果可以用于在帧处理中生成解码的GSM比特序列。 帧处理可以利用冗余信息和物理约束来提高解码算法的性能。

公开(公告)号：US07912728B2

公开(公告)日：2011-03-22

申请号：US11565373

申请日：2006-11-30

申请人： Hongwei Kong ,  Nelson Sollenberger ,  Li Fung Chang ,  Claude Hayek ,  Taiyi Cheng

发明人： Hongwei Kong ,  Nelson Sollenberger ,  Li Fung Chang ,  Claude Hayek ,  Taiyi Cheng

IPC分类号： H04J3/22 ,  H03M7/00

CPC分类号： G10L19/00

摘要： An audio codec in a baseband processor may be utilized for mixing audio signals received at a plurality of data sampling rates. The mixed audio signals may be up sampled to a very large sampling rate, and then down sampled to a specified sampling rate that is compatible with a Bluetooth-enabled device by utilizing an interpolator in the audio codec. The down-sampled signals may be communicated to Bluetooth-enabled devices, such as Bluetooth headsets, or Bluetooth-enabled devices with a USB interface. The interpolator may be a linear interpolator for which the audio codec may enable generation of triggering and/or coefficient signals based on the specified output sampling rate. An interpolation coefficient may be generated based on a base value associated with the specified output sampling rate. The audio codec may enable selecting the specified output sampling rate from a plurality of rates.

摘要翻译： 基带处理器中的音频编解码器可用于混合以多个数据采样率接收的音频信号。 混合音频信号可以被上采样到非常大的采样率，然后通过利用音频编解码器中的内插器而被下采样到与启用蓝牙的设备兼容的指定采样率。 下采样信号可以传送到具有USB接口的支持蓝牙的设备，例如蓝牙耳机或具有蓝牙功能的设备。 内插器可以是线性内插器，其中音频编解码器可以基于指定的输出采样率来实现触发和/或系数信号的产生。 可以基于与指定的输出采样率相关联的基值产生内插系数。 音频编解码器可以允许从多个速率中选择指定的输出采样率。