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    Bit log likelihood ratio evaluation
    21.
    发明申请
    Bit log likelihood ratio evaluation 失效
    位对数似然比评估

    公开(公告)号：US20060178755A1

    公开(公告)日：2006-08-10

    申请号：US11330652

    申请日：2006-01-11

    申请人： Fuyun Ling ,  Seong Chung ,  Jinxia Bai ,  Thomas Sun

    发明人： Fuyun Ling ,  Seong Chung ,  Jinxia Bai ,  Thomas Sun

    IPC分类号： G05B15/00

    CPC分类号： H04L27/3488 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0066 ,  H04L27/2604 ,  H04L2001/0098

    摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.

    摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常被定义为k1≤2或k2≥2。 该方法选择k1 <2> 2和k2 <2>之间的不匹配能量比（k <2> 2），并为双层QPSK涡轮增益产生位LLR值 使用不匹配的k <2>能量比进行解码。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k <2>为约5.0625。 或者说，通过确定k1 <2> 2和k2 <2>之间的近似中点，所选择的不匹配的k 2 2能量比。

    Bit log likelihood ratio evaluation
    23.
    发明授权
    Bit log likelihood ratio evaluation 失效
    位对数似然比评估

    公开(公告)号：US07660368B2

    公开(公告)日：2010-02-09

    申请号：US11330652

    申请日：2006-01-11

    申请人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    发明人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    IPC分类号： H03D3/22

    CPC分类号： H04L27/3488 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0066 ,  H04L27/2604 ,  H04L2001/0098

    摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.

    摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。

    Evaluation of transmitter performance
    24.
    发明授权
    Evaluation of transmitter performance 失效
    发射机性能评估

    公开(公告)号：US07733968B2

    公开(公告)日：2010-06-08

    申请号：US11361085

    申请日：2006-02-22

    申请人： Fuyun Ling ,  Durk L. Van Veen ,  Murali Ramaswamy Chari ,  Thomas Sun

    发明人： Fuyun Ling ,  Durk L. Van Veen ,  Murali Ramaswamy Chari ,  Thomas Sun

    IPC分类号： H04L27/28

    CPC分类号： H04L5/023 ,  H04B17/13 ,  H04B17/391 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0232 ,  H04L27/0012

    摘要： Systems and methodologies are described that facilitate monitoring transmitter performance in a wireless communication environment. A signal analyzer can be used to sample the output of a transmitter and the sampled signal can be propagated to a processor. The processor can generate frequency domain channel estimates for the subcarriers. If the transmitted modulation symbols are unknown, the processor can determine the modulation symbols and use the determined modulation symbols to calculate the channel estimates. The channel estimates can be averaged and used to generate various metrics to evaluate the transmitter performance.

    摘要翻译： 描述了便于在无线通信环境中监视发射机性能的系统和方法。 信号分析仪可用于对发射机的输出采样，采样信号可以传播到处理器。 处理器可以产生子载波的频域信道估计。 如果发送的调制符号是未知的，则处理器可以确定调制符号并使用确定的调制符号来计算信道估计。 信道估计可以被平均化并用于生成各种度量以评估发射机的性能。

    System and method of calculating noise variance
    25.
    发明授权
    System and method of calculating noise variance 失效
    噪声方差计算系统和方法

    公开(公告)号：US07693231B2

    公开(公告)日：2010-04-06

    申请号：US11453439

    申请日：2006-06-14

    申请人： Fuyun Ling ,  Thomas Sun ,  Raghuraman Krisnamoorthi ,  Durk L. van Veen ,  Murali Ramaswamy Chari

    发明人： Fuyun Ling ,  Thomas Sun ,  Raghuraman Krisnamoorthi ,  Durk L. van Veen ,  Murali Ramaswamy Chari

    IPC分类号： H04L27/00

    CPC分类号： H04L27/38 ,  H04B17/101 ,  H04B17/18 ,  H04L1/20 ,  H04L25/022

    摘要： The claimed subject matter relates to estimating noise variance associated with a transmitter. For example, the noise variance can be estimated in connection with determining performance parameters associated with a transmitter. Determining noise variance can include the acts of estimating phase alteration of a received signal through utilization of a least squares-based phase estimation algorithm. Determining noise variance can also include the act of determining an unbiased estimation of noise variance as a function of the estimated phase alteration.

    摘要翻译： 所要求保护的主题涉及估计与发射机相关的噪声方差。 例如，可以结合确定与发射机相关联的性能参数来估计噪声方差。 确定噪声方差可以包括通过利用基于最小平方的相位估计算法来估计接收信号的相位变化的动作。 确定噪声方差还可以包括确定噪声方差的无偏估计作为估计相位变化的函数的行为。

    Bit log likelihood ratio evaluation
    26.
    发明授权
    Bit log likelihood ratio evaluation 有权
    位对数似然比评估

    公开(公告)号：US08102949B2

    公开(公告)日：2012-01-24

    申请号：US12646543

    申请日：2009-12-23

    申请人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    发明人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    IPC分类号： H03D3/22

    CPC分类号： H04L27/3488 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0066 ,  H04L27/2604 ,  H04L2001/0098

    摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.

    摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。

    BIT LOG LIKELIHOOD RATION EVALUATION
    27.
    发明申请
    BIT LOG LIKELIHOOD RATION EVALUATION 有权
    比特日志LIKELIHOOD评估

    公开(公告)号：US20100098192A1

    公开(公告)日：2010-04-22

    申请号：US12646543

    申请日：2009-12-23

    申请人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    发明人： Fuyun Ling ,  Seong Taek Chung ,  Jinxia Bai ,  Thomas Sun

    IPC分类号： H03D3/22 ,  H04J11/00

    CPC分类号： H04L27/3488 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/0066 ,  H04L27/2604 ,  H04L2001/0098

    摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.

    摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。

    Wet granulation using a water sequestering agent
    28.
    发明授权
    Wet granulation using a water sequestering agent 有权
    湿法造粒使用水螯合剂

    公开(公告)号：US08372415B2

    公开(公告)日：2013-02-12

    申请号：US13559097

    申请日：2012-07-26

    申请人： Thomas Sun ,  Ray Lo

    发明人： Thomas Sun ,  Ray Lo

    IPC分类号： A61K9/14 ,  A61K9/00

    CPC分类号： A61K9/20 ,  A61K9/2054 ,  A61K9/2059 ,  A61K9/2095 ,  A61K31/506 ,  A61K31/538

    摘要： Disclosed are tablets comprising hydrolytically stable formulations of (6-(5-fluoro-2-(3,4,5 -trimethoxyphenylamino)pyrimidin-4-ylamino)-2,2-dimethyl-3-oxo-2H-pyrido[3,2-b][1,4]oxazin-4(3H)-yl)methyl phosphate disodium salt (Compound 1) prepared by a wet granulation process.

    摘要翻译： 公开了包含（6-（5-氟-2-（3,4,5-三甲氧基苯基氨基）嘧啶-4-基氨基）-2,2-二甲基-3-氧代-2H-吡啶并[3,3- 2-b] [1,4]恶嗪-4（3H） - 基）甲基磷酸二钠盐（化合物1）。

    Method and apparatus for decoding data in a layered modulation system
    30.
    发明授权
    Method and apparatus for decoding data in a layered modulation system 有权
    用于在分层调制系统中解码数据的方法和装置

    公开(公告)号：US08223853B2

    公开(公告)日：2012-07-17

    申请号：US11329891

    申请日：2006-01-10

    申请人： Rajiv Vijayan ,  Seong Taek Chung ,  Thomas Sun

    发明人： Rajiv Vijayan ,  Seong Taek Chung ,  Thomas Sun

    IPC分类号： H04K1/10

    CPC分类号： H04L27/3488 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/007 ,  H04L27/2608 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2649 ,  H04L2001/0098

    摘要： A decoder for a layered modulation system can be configured to independently and concurrently decode each of a base and enhancement layer. The base layer decoder and enhancement layer decoder can be configured substantially in parallel and can each operate concurrently on the same received layered modulation symbol. Each of the base and enhancement layer decoders can be configured with a bit metric module that is configured to determine a signal quality metric based on the received symbol. In systems having turbo encoded data, the bit metric module can be configured to determine a log likelihood ratio. The ratio is based in part on a channel estimate and an energy ratio used in the layered modulation constellation.

    摘要翻译： 用于分层调制系统的解码器可以被配置为独立地并且解码每个基本和增强层。 基本层解码器和增强层解码器可以基本并行配置，并且可以在相同的接收分层调制符号上同时操作。 基本和增强层解码器中的每一个可以配置有位度量模块，其被配置为基于接收到的符号来确定信号质量度量。 在具有turbo编码数据的系统中，比特量度模块可被配置为确定对数似然比。 该比率部分地基于在分层调制星座中使用的信道估计和能量比。