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1. 发明申请

US20130111305A1 CHANNEL DECODING METHOD AND DECODER FOR TAIL-BITING CODES 有权
标题翻译：信道解码方法和解码器
公开(公告)号：US20130111305A1
公开(公告)日：2013-05-02
申请号：US13809932
申请日：2012-03-19
申请人： Xiaotao Wang , Hua Qian , Jing Xu , Hao Huang , Yang Yang , Fang Wang
发明人： Xiaotao Wang , Hua Qian , Jing Xu , Hao Huang , Yang Yang , Fang Wang
IPC分类号： H03M13/23
CPC分类号： H03M13/23 , H03M13/1505 , H03M13/3738 , H03M13/413 , H03M13/6505 , H03M13/6525
摘要： A channel decoding method and decoder are disclosed. The decoding method is based on a Circular Viterbi Algorithm (CVA), rules out impossible initial states one by one through iterations according the received soft information sequence, and finally finds the global optimal tail-biting path. In the present invention, all impossible iterations are ruled out through multiple iterations, and only the initial state having most likelihood with the received sequence survives. The algorithm is finally convergent to an optimal tail-biting path to be output. In addition, the method also updates a metric of a maximum likelihood tail-biting path (MLTBP) or rules out impossible initial states through the obtained surviving tail-biting path, thereby effectively solving the problem that the algorithm is not convergent due to a circular trap, providing a practical optimal decoding algorithm for a tail-biting convolutional code, reducing the complexity of an existing decoding scheme, and saving the storage space.
摘要翻译：公开了一种信道解码方法和解码器。解码方法基于循环维特比算法（CVA），根据接收到的软信息序列逐个排除不可能的初始状态，最终找到全局最优尾巴路径。在本发明中，通过多次迭代排除所有不可能的迭代，并且只有具有接收序列的最可能性的初始状态才能存活。该算法最终收敛到要输出的最佳尾巴路径。另外，该方法还通过所获得的幸存尾巴路径来更新最大似然尾巴路径（MLTBP）的度量或者排除不可能的初始状态，从而有效地解决了算法由于循环而不会收敛的问题陷阱，为尾部卷积码提供实用的最佳解码算法，降低了现有解码方案的复杂度，并节省了存储空间。

2. 发明申请

US20130026370A1 METHODS AND SYSTEMS FOR SCATTER ESTIMATION IN POSITRON EMISSION TOMOGRAPHY 有权
标题翻译：方法和系统在排气排放测量中的散射估计
公开(公告)号：US20130026370A1
公开(公告)日：2013-01-31
申请号：US13191205
申请日：2011-07-26
申请人： Hua Qian , Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans
发明人： Hua Qian , Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans
IPC分类号： G01T1/164
CPC分类号： G01T1/1615 , A61B6/037 , G06T11/005
摘要： Methods and systems for multiple scatter estimation in Positron Emission Tomography (PET) are provided. One method includes determining attenuation sinograms and determining a varying convolution kernel as a function of the attenuation sinograms, wherein the kernel varies in amplitude and width over a radial length of a PET imaging system. The method also includes using the varying convolution kernel to estimate multiple PET scatter.
摘要翻译：提供了正电子发射断层扫描（PET）中多重散射估计的方法和系统。一种方法包括确定衰减正弦图并确定作为衰减正弦图的函数的变化的卷积核，其中所述核在PET成像系统的径向长度上的幅度和宽度上变化。该方法还包括使用变化的卷积核估计多个PET散射。

3. 发明授权

US08050643B1 RF-AGC scheme insensitive to channel interference and deep fading 有权
标题翻译： RF-AGC方案对信道干扰和深度衰落不敏感
公开(公告)号：US08050643B1
公开(公告)日：2011-11-01
申请号：US12118357
申请日：2008-05-09
申请人： Songping Wu , Hua Qian , Gang Liu , King Chun Tsai , Lawrence Tse , Hui-Ling Lou
发明人： Songping Wu , Hua Qian , Gang Liu , King Chun Tsai , Lawrence Tse , Hui-Ling Lou
IPC分类号： H04B7/00
CPC分类号： H04W52/52 , H03G3/3068
摘要： In a method and system for controlling gain in an RF receiver, an RF signal is analyzed over different attack and decay windows, from which the receiver determines (1) if the signal is in an attack condition with dip values below a threshold level thus indicating a need for increasing signal gain, or (2) if the signal is in a decay condition with threshold values above a threshold level thus indicating a need for decreasing signal gain. The receiver applies attack and decay windows of different sizes and in an asynchronous manner to create a gain control scheme that is insensitive to transient effects such as channel interference and deep fading that affect the intensities of an in-band signal.
摘要翻译：在用于控制RF接收机中的增益的方法和系统中，通过不同的攻击和衰减窗口分析RF信号，接收机从该接收机确定（1）如果信号处于攻击条件，其中dip值低于阈值水平，因此指示增加信号增益的需要，或者（2）如果信号处于具有高于阈值电平的阈值的衰减条件，从而指示需要降低信号增益。接收机以异步方式应用不同大小的攻击和衰减窗口，以创建一种对影响带内信号强度的信道干扰和深衰落等瞬态效应不敏感的增益控制方案。

4. 发明申请

US20100227511A1 ELECTRICAL CONNECTOR HAVING DETACHABLE COVER 失效
标题翻译：具有可拆卸盖的电气连接器
公开(公告)号：US20100227511A1
公开(公告)日：2010-09-09
申请号：US12634697
申请日：2009-12-10
申请人： ZHEN-HUA QIAN
发明人： ZHEN-HUA QIAN
IPC分类号： H01R9/03 , H01R9/22
CPC分类号： H01R13/506 , H01R9/03 , H01R13/112 , H01R24/20 , H01R2107/00
摘要： Provided is an electrical connector including an insulative housing having a main body and a supporting board extending downward from the main body so as to form an L shaped configuration. The main body defines a plurality of receiving passageways extending along a front-to-rear direction and then runs through the supporting board along a vertical direction. A pair of guiding grooves are respectively formed at opposite inner sides of the main body. A plurality of terminals are retained in the receiving passageways. A cover defines locking portions at opposite sides thereof for movably received in the guiding grooves and covers the terminals for preventing outward movement of the terminals.
摘要翻译：提供一种电连接器，包括具有主体和从主体向下延伸以形成L形构造的支撑板的绝缘壳体。主体限定沿着前后方向延伸的多个接收通道，然后沿垂直方向穿过支撑板。一对导向槽分别形成在主体的相对内侧。多个端子保持在接收通道中。盖子在其相对侧限定锁定部分，用于可移动地容纳在引导槽中并且覆盖端子以防止端子向外移动。

5. 发明授权

US09083385B2 Channel decoding method and decoder for tail-biting codes 有权
标题翻译：通道解码方法和解码器，用于尾码
公开(公告)号：US09083385B2
公开(公告)日：2015-07-14
申请号：US13809932
申请日：2012-03-19
申请人： Xiaotao Wang , Hua Qian , Jing Xu , Hao Huang , Yang Yang , Fang Wang
发明人： Xiaotao Wang , Hua Qian , Jing Xu , Hao Huang , Yang Yang , Fang Wang
IPC分类号： H03M13/03 , H03M13/23 , H03M13/37 , H03M13/41 , H03M13/00 , H03M13/15
CPC分类号： H03M13/23 , H03M13/1505 , H03M13/3738 , H03M13/413 , H03M13/6505 , H03M13/6525
摘要： A channel decoding method and decoder are disclosed. The decoding method is based on a Circular Viterbi Algorithm (CVA), rules out impossible initial states one by one through iterations according the received soft information sequence, and finally finds the global optimal tail-biting path. In the present invention, all impossible iterations are ruled out through multiple iterations, and only the initial state having most likelihood with the received sequence survives. The algorithm is finally convergent to an optimal tail-biting path to be output. In addition, the method also updates a metric of a maximum likelihood tail-biting path (MLTBP) or rules out impossible initial states through the obtained surviving tail-biting path, thereby effectively solving the problem that the algorithm is not convergent due to a circular trap, providing a practical optimal decoding algorithm for a tail-biting convolutional code, reducing the complexity of an existing decoding scheme, and saving the storage space.
摘要翻译：公开了一种信道解码方法和解码器。解码方法基于循环维特比算法（CVA），根据接收到的软信息序列逐个排除不可能的初始状态，最终找到全局最优尾巴路径。在本发明中，通过多次迭代排除所有不可能的迭代，并且只有具有接收序列的最可能性的初始状态才能存活。该算法最终收敛到要输出的最佳尾巴路径。另外，该方法还通过所获得的幸存尾巴路径来更新最大似然尾巴路径（MLTBP）的度量或者排除不可能的初始状态，从而有效地解决了算法由于循环而不会收敛的问题陷阱，为尾部卷积码提供实用的最佳解码算法，降低了现有解码方案的复杂度，并节省了存储空间。

6. 发明申请

US20070247167A1 Method to monitor critical dimension of IC interconnect 有权
标题翻译：监测IC互连关键尺寸的方法
公开(公告)号：US20070247167A1
公开(公告)日：2007-10-25
申请号：US11398980
申请日：2006-04-06
申请人： Hua Qian , Ching Chung
发明人： Hua Qian , Ching Chung
IPC分类号： G01R31/02
CPC分类号： G01R31/2853
摘要： An example method of monitoring and measuring the line width of interconnects comprising the following steps. First, we measure an I-V profile of a sample interconnect structure to obtain a sample I-V profile. The I-V profile is comprised of leakage current measurements at two or more voltages. The sample interconnect structure is comprised of spaced lines having a line spacing. Next we compare the sample I-V profile with a reference I-V profile at a reference line spacing to determine if sample interconnect structure is not defective. If the sample I-V profile is similar to the reference I-V profile, then leakage currents for the sample interconnect structure are derived from the I-V profiles at a selected voltages. Then we calculate the line spacing of the sample interconnect structure using the sample I-V profile.
摘要翻译：监视和测量互连线宽的示例方法，包括以下步骤。首先，我们测量样品互连结构的I-V轮廓以获得样品I-V轮廓。 I-V曲线由两个或多个电压下的漏电流测量组成。样品互连结构由具有线间隔的间隔线组成。接下来，我们将样本I-V剖面与参考线间距的参考I-V剖面进行比较，以确定样本互连结构是否没有缺陷。如果样品I-V剖面图与参考I-V剖面相似，则样品互连结构的漏电流在选定电压下从I-V剖面得出。然后我们使用样品I-V曲线计算样品互连结构的线间距。

7. 发明授权

US06963472B2 Flexural pivot for rotary disc drive actuator 失效
标题翻译：用于旋转磁盘驱动器执行器的弯曲枢轴
公开(公告)号：US06963472B2
公开(公告)日：2005-11-08
申请号：US09894480
申请日：2001-06-27
申请人： Zhimin He , Guoxiao Guo , Hua Qian , EngHong Ong
发明人： Zhimin He , Guoxiao Guo , Hua Qian , EngHong Ong
IPC分类号： G11B5/54 , G11B5/55 , G11B21/16
CPC分类号： G11B5/5521
摘要： The present invention provides for a flexural pivot that can be fitted within a cavity of an actuator. The pivot includes a first member that can be coupled to the wall defining the cavity and a second member that can be mounted to the disc drive housing component of the disc drive. At least two leaves join external surfaces of the first member to the second member.The present invention offers a flexural pivot that can be easily incorporated with rotary actuators traditionally designed for use with a ball bearing pivot cartridge. In addition, it avoids the difficulties encountered by conventional designs when trying to assemble intersecting flat springs within a cylindrical sleeve. Furthermore, in comparison with conventional flexural pivots that are located outside the actuator body, the present invention provides a compact pivot that can be mounted substantially in a cavity of the actuator body such that the center of rotation of the actuator is located nearer the center of mass.
摘要翻译：本发明提供了一种可以安装在致动器的空腔内的弯曲枢轴。该枢轴包括可连接到限定空腔的壁的第一构件和可安装到盘驱动器的盘驱动器壳体部件的第二构件。至少两个叶片将第一构件的外表面连接到第二构件。本发明提供一种弯曲枢轴，其可以容易地结合有传统上设计用于与球轴承枢轴筒一起使用的旋转致动器。此外，它避免了当试图在圆柱形套筒内组装交叉的平面弹簧时常规设计遇到的困难。此外，与位于致动器主体外部的常规弯曲枢轴相比，本发明提供了一种紧凑的枢轴，其可以基本上安装在致动器本体的空腔中，使得致动器的旋转中心位于质量

8. 发明授权

US07950968B2 Electrical connector having detachable cover 失效
标题翻译：电连接器具有可拆卸盖
公开(公告)号：US07950968B2
公开(公告)日：2011-05-31
申请号：US12634697
申请日：2009-12-10
申请人： Zhen-Hua Qian
发明人： Zhen-Hua Qian
IPC分类号： H01R13/502
CPC分类号： H01R13/506 , H01R9/03 , H01R13/112 , H01R24/20 , H01R2107/00
摘要： Provided is an electrical connector including an insulative housing having a main body and a supporting board extending downward from the main body so as to form an L shaped configuration. The main body defines a plurality of receiving passageways extending along a front-to-rear direction and then runs through the supporting board along a vertical direction. A pair of guiding grooves are respectively formed at opposite inner sides of the main body. A plurality of terminals are retained in the receiving passageways. A cover defines locking portions at opposite sides thereof for movably received in the guiding grooves and covers the terminals for preventing outward movement of the terminals.
摘要翻译：提供一种电连接器，包括具有主体和从主体向下延伸以形成L形构造的支撑板的绝缘壳体。主体限定沿着前后方向延伸的多个接收通道，然后沿垂直方向穿过支撑板。一对导向槽分别形成在主体的相对内侧。多个端子保持在接收通道中。盖子在其相对侧限定锁定部分，用于可移动地容纳在引导槽中并且覆盖端子以防止端子向外移动。

9. 发明授权

US07376920B2 Method to monitor critical dimension of IC interconnect 有权
标题翻译：监测IC互连关键尺寸的方法
公开(公告)号：US07376920B2
公开(公告)日：2008-05-20
申请号：US11398980
申请日：2006-04-06
申请人： Hua Qian , Ching Thiam Chung
发明人： Hua Qian , Ching Thiam Chung
IPC分类号： G06F9/45 , G06F17/50 , G01R31/08 , G01R31/02 , G01R27/00 , G01R13/00
CPC分类号： G01R31/2853
摘要： An example method of monitoring and measuring the line width of interconnects comprising the following steps. First, we measure an I-V profile of a sample interconnect structure to obtain a sample I-V profile. The I-V profile is comprised of leakage current measurements at two or more voltages. The sample interconnect structure is comprised of spaced lines having a line spacing. Next we compare the sample I-V profile with a reference I-V profile at a reference line spacing to determine if sample interconnect structure is not defective. If the sample I-V profile is similar to the reference I-V profile, then leakage currents for the sample interconnect structure are derived from the I-V profiles at a selected voltages. Then we calculate the line spacing of the sample interconnect structure using the sample I-V profile.
摘要翻译：监视和测量互连线宽的示例方法，包括以下步骤。首先，我们测量样品互连结构的I-V轮廓以获得样品I-V轮廓。 I-V曲线由两个或多个电压下的漏电流测量组成。样品互连结构由具有线间隔的间隔线组成。接下来，我们将样本I-V剖面与参考线间距的参考I-V剖面进行比较，以确定样本互连结构是否没有缺陷。如果样品I-V剖面图与参考I-V剖面相似，则样品互连结构的漏电流在选定电压下从I-V剖面得出。然后我们使用样品I-V曲线计算样品互连结构的线间距。

10. 发明授权

US08575554B2 Methods and systems for scatter estimation in positron emission tomography 有权
标题翻译：正电子发射断层扫描中散射估计的方法和系统
公开(公告)号：US08575554B2
公开(公告)日：2013-11-05
申请号：US13191205
申请日：2011-07-26
申请人： Hua Qian , Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans
发明人： Hua Qian , Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans
IPC分类号： G01T1/164 , A61B6/00 , G06K9/00
CPC分类号： G01T1/1615 , A61B6/037 , G06T11/005
摘要： Methods and systems for multiple scatter estimation in Positron Emission Tomography (PET) are provided. One method includes determining attenuation sinograms and determining a varying convolution kernel as a function of the attenuation sinograms, wherein the kernel varies in amplitude and width over a radial length of a PET imaging system. The method also includes using the varying convolution kernel to estimate multiple PET scatter.
摘要翻译：提供了正电子发射断层扫描（PET）中多重散射估计的方法和系统。一种方法包括确定衰减正弦图并确定作为衰减正弦图的函数的变化的卷积核，其中所述核在PET成像系统的径向长度上的幅度和宽度上变化。该方法还包括使用变化的卷积核估计多个PET散射。

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