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1. 发明申请

US20080056397A1 I/Q imbalance compensation 有权
标题翻译： I / Q不平衡补偿
公开(公告)号：US20080056397A1
公开(公告)日：2008-03-06
申请号：US11895985
申请日：2007-08-27
申请人： Yan Li , Azzedine Touzni
发明人： Yan Li , Azzedine Touzni
IPC分类号： H04L27/28
CPC分类号： H04L27/3863 , H04B1/30 , H04L27/2647
摘要： A ZIF direct-conversion OFDM receiver capable of estimating and correcting an I/Q imbalance in a baseband signal. A complex down-conversion is performed on a received signal r(t). The received signal r(t) is divided into an In-phase signal (I) and Quadrature-phase signal (Q). An I/Q imbalance is introduced by the local oscillator such that the I/Q imbalance includes an amplitude imbalance factor (ρ) and phase imbalance factor (φ). The I and Q signals are amplified, filtered and digitized. The digitized I and Q signals are processed via a Fast Fourier Transform (FFT). An I/Q compensation algorithm estimates the values of the amplitude imbalance factor (ρ) and, the phase imbalance factor (φ) based on a time expectation calculation. The imbalance factors are applied to the baseband signal to recover the signal of interest x(t). The OFDM receiver outputs the signal of interest x(t) to an information display device.
摘要翻译：一种能够估计和校正基带信号中的I / Q不平衡的ZIF直接转换OFDM接收机。对接收信号r（t）执行复合下变频。接收信号r（t）被分成同相信号（I）和正交相位信号（Q）。本地振荡器引入I / Q不平衡，使得I / Q不平衡包括幅度不平衡因子（rho）和相位不平衡因子（phi）。 I和Q信号被放大，滤波和数字化。数字化的I和Q信号通过快速傅立叶变换（FFT）处理。 I / Q补偿算法基于时间期望计算来估计幅度不平衡因子（rho）的值和相位不平衡系数（phi）。将不平衡因子应用于基带信号以恢复感兴趣的信号x（t）。 OFDM接收机将感兴趣的信号x（t）输出到信息显示装置。

2. 发明授权

US08503545B2 I/Q imbalance compensation 有权
标题翻译： I / Q不平衡补偿
公开(公告)号：US08503545B2
公开(公告)日：2013-08-06
申请号：US11895985
申请日：2007-08-27
申请人： Yan Li , Azzedine Touzni
发明人： Yan Li , Azzedine Touzni
IPC分类号： H04K1/10
CPC分类号： H04L27/3863 , H04B1/30 , H04L27/2647
摘要： A ZIF direct-conversion OFDM receiver capable of estimating and correcting an I/Q imbalance in a baseband signal. A complex down-conversion is performed on a received signal r(t). The received signal r(t) is divided into an In-phase signal (I) and Quadrature-phase signal (Q). An I/Q imbalance is introduced by the local oscillator such that the I/Q imbalance includes an amplitude imbalance factor (ρ) and phase imbalance factor (φ). The I and Q signals are amplified, filtered and digitized. The digitized I and Q signals are processed via a Fast Fourier Transform (FFT). An I/Q compensation algorithm estimates the values of the amplitude imbalance factor (ρ) and, the phase imbalance factor (φ) based on a time expectation calculation. The imbalance factors are applied to the baseband signal to recover the signal of interest x(t). The OFDM receiver outputs the signal of interest x(t) to an information display device.
摘要翻译：一种能够估计和校正基带信号中的I / Q不平衡的ZIF直接转换OFDM接收机。对接收信号r（t）执行复合下变频。接收信号r（t）被分成同相信号（I）和正交相位信号（Q）。本地振荡器引入I / Q不平衡，使得I / Q不平衡包括幅度不平衡因子（rho）和相位不平衡因子（phi）。 I和Q信号被放大，滤波和数字化。数字化的I和Q信号通过快速傅立叶变换（FFT）处理。 I / Q补偿算法基于时间期望计算来估计幅度不平衡因子（rho）的值和相位不平衡系数（phi）。将不平衡因子应用于基带信号以恢复感兴趣的信号x（t）。 OFDM接收机将感兴趣的信号x（t）输出到信息显示装置。

3. 发明授权

US08054917B2 Method and apparatus for advanced inter-carrier interference cancellation in orthogonal frequency division multiplexing (OFDM) channels 有权
标题翻译：正交频分复用（OFDM）信道中高级载波间干扰消除的方法和装置
公开(公告)号：US08054917B2
公开(公告)日：2011-11-08
申请号：US12170898
申请日：2008-07-10
申请人： Feng Huang , Yan Li , Azzedine Touzni
发明人： Feng Huang , Yan Li , Azzedine Touzni
IPC分类号： H04L27/06
CPC分类号： H04L5/0007 , H04L25/0204 , H04L25/0242
摘要： A method of estimating a time variant Orthogonal Frequency Division Multiplexing (OFDM) while eliminating Inter-carrier Interference (ICI) is disclosed, where the time variant channel matrix is estimated at channel taps using a Basis Expansion Model (BEM). The BEM method decomposes the time variant channel into a group of basis functions in the frequency domain. Coefficients are estimated using a sub-space tracking algorithm that decreases the dimensions of the coefficient matrix allowing for simpler calculation of the estimated signal. The coefficients matrix is estimated using a conjugate gradient iterative method that may be stopped after 6-8 iterations to arrive at an acceptable estimation. Finally, the transmitted data is estimated, again using the conjugate gradient method iteratively, wherein the conjugate gradient method is stopped after a small number of iterations.
摘要翻译：公开了一种在消除载波间干扰（ICI）的同时估计时变正交频分复用（OFDM）的方法，其中使用基础扩展模型（BEM）在信道抽头处估计时变信道矩阵。 BEM方法将时变信道分解为频域中的一组基函数。使用减小系数矩阵的维度的子空间跟踪算法来估计系数，从而允许更简单地计算估计的信号。使用共轭梯度迭代法估计系数矩阵，其可以在6-8次迭代之后停止以获得可接受的估计。最后，再次使用共轭梯度法迭代地估计发送的数据，其中共轭梯度法在少量的迭代之后被停止。

4. 发明申请

US20100303156A1 Method and Apparatus for Providing Precise Transport Stream Packet Ordering and Erasure Optimization for Digital Video Decoder 审中-公开
标题翻译：用于为数字视频解码器提供精确传输流分组排序和擦除优化的方法和装置
公开(公告)号：US20100303156A1
公开(公告)日：2010-12-02
申请号：US12475202
申请日：2009-05-29
申请人： Feng Huang , Tianhao Li , Yihong Qi , Yan Li , Azzedine Touzni
发明人： Feng Huang , Tianhao Li , Yihong Qi , Yan Li , Azzedine Touzni
IPC分类号： H04N11/02
CPC分类号： H04N21/4382 , H04N21/4385 , H04N21/64315
摘要： One method includes estimating, by a lost packet determination logic, an expected number of packets, expected to be received within a time interval, based on packet arrival speed; and determining a number of lost packets by using the expected number of packets and a packet counter wherein the packet counter counts a plurality of received packets. The method may further include comparing the expected number of packets to the packet counter and determining that the expected number of packets is greater than the packet counter; and then using the expected number of packets and the packet counter to determine the actual number of lost packets, where the actual number of lost packets exceeds the packet counter maximum. The methods may also introduce erasures when there is uncertainty of whether some packets or bytes are in error, such that a simplified erasure-based Reed-Solomon decoder may be used.
摘要翻译：一种方法包括：通过丢失分组确定逻辑，基于分组到达速度估计期望在时间间隔内接收的分组的预期数量; 以及通过使用预期数量的分组和分组计数器来确定丢失分组的数量，其中所述分组计数器对多个接收的分组进行计数。该方法还可以包括将分组的预期数量与分组计数器进行比较，并确定分组的预期数量大于分组计数器; 然后使用预期数量的分组和分组计数器来确定实际丢失分组数，其中实际丢失分组数超过分组计数器最大值。当存在某些分组或字节是否存在错误的不确定性时，这些方法还可以引入擦除，使得可以使用基于简化的基于擦除的里德 - 所罗门解码器。

5. 发明申请

US20100008433A1 METHOD AND APPARATUS FOR ADVANCED INTER-CARRIER INTERFERENCE CANCELLATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) CHANNELS 有权
标题翻译：正交频分多址（OFDM）信道中高级互操作干扰消除的方法和装置
公开(公告)号：US20100008433A1
公开(公告)日：2010-01-14
申请号：US12170898
申请日：2008-07-10
申请人： Feng Huang , Yan Li , Azzedine Touzni
发明人： Feng Huang , Yan Li , Azzedine Touzni
IPC分类号： H04L27/28
CPC分类号： H04L5/0007 , H04L25/0204 , H04L25/0242
摘要： A method of estimating a time variant Orthogonal Frequency Division Multiplexing (OFDM) while eliminating Inter-carrier Interference (ICI) is disclosed, where the time variant channel matrix is estimated at channel taps using a Basis Expansion Model (BEM). The BEM method decomposes the time variant channel into a group of basis functions in the frequency domain. Coefficients are estimated using a sub-space tracking algorithm that decreases the dimensions of the coefficient matrix allowing for simpler calculation of the estimated signal. The coefficients matrix is estimated using a conjugate gradient iterative method that may be stopped after 6-8 iterations to arrive at an acceptable estimation. Finally, the transmitted data is estimated, again using the conjugate gradient method iteratively, wherein the conjugate gradient method is stopped after a small number of iterations.
摘要翻译：公开了一种在消除载波间干扰（ICI）的同时估计时变正交频分复用（OFDM）的方法，其中使用基础扩展模型（BEM）在信道抽头处估计时变信道矩阵。 BEM方法将时变信道分解为频域中的一组基函数。使用减小系数矩阵的维度的子空间跟踪算法来估计系数，从而允许更简单地计算估计的信号。使用共轭梯度迭代法估计系数矩阵，其可以在6-8次迭代之后停止以获得可接受的估计。最后，再次使用共轭梯度法迭代地估计发送的数据，其中共轭梯度法在少量的迭代之后被停止。

6. 外观设计

USD965092S1 Inflatable swimming pool 有权
公开(公告)号：USD965092S1
公开(公告)日：2022-09-27
申请号：US29802936
申请日：2021-08-09
申请人： Yan Li , Weijian Yuan
设计人： Yan Li , Weijian Yuan

7. 外观设计

USD948651S1 Shark swimming circle 有权
公开(公告)号：USD948651S1
公开(公告)日：2022-04-12
申请号：US29782448
申请日：2021-05-06
申请人： Yan Li
设计人： Yan Li

8. 发明授权

US09436885B2 Determining a computer's position and system for manufacturing a tag 有权
标题翻译：确定计算机的位置和系统制造标签
公开(公告)号：US09436885B2
公开(公告)日：2016-09-06
申请号：US13558969
申请日：2012-07-26
申请人： Yan Li , Hai Bo Lin , Tao Liu , Yu Dong Yang , Yi Xin Zhao
发明人： Yan Li , Hai Bo Lin , Tao Liu , Yu Dong Yang , Yi Xin Zhao
IPC分类号： H04N7/18 , G06K9/32 , G06K9/26
CPC分类号： G06K1/121 , G06K7/1439 , G06K9/26 , G06K9/3233 , H05K7/18
摘要： A system and method for accurately positioning a computer position, and identifying the specific rack position where the computer is without manual intervention. A camera is installed on the computer to read the contents of a tag on the rack, so as to identify the position information of the computer. Specifically, the computer is provided with a self-positioning function, wherein: a camera is installed on the computer, and the camera is configured to read the contents of a tag attached on a side of a rack to house the computer to identify the rack position where the computer is.
摘要翻译：一种用于精确定位计算机位置的系统和方法，以及识别计算机没有手动干预的特定机架位置。计算机上安装了相机以读取机架上标签的内容，以便识别计算机的位置信息。具体地说，该计算机具有自定位功能，其中：相机安装在计算机上，并且相机被配置为读取安装在机架一侧的标签的内容以容纳计算机以识别机架电脑的位置

9. 发明授权

US09213197B2 Color filter substrate, liquid crystal panel and liquid crystal display 有权
标题翻译：滤色片基板，液晶显示屏和液晶显示屏
公开(公告)号：US09213197B2
公开(公告)日：2015-12-15
申请号：US13703719
申请日：2012-07-13
申请人： Qiangtao Wang , Wenbing Li , Xinli Ma , Yan Li
发明人： Qiangtao Wang , Wenbing Li , Xinli Ma , Yan Li
IPC分类号： G02F1/1335 , G02B5/20
CPC分类号： G02F1/133514 , G02B5/201 , G02B2207/113 , G02F2201/52
摘要： Embodiments of the present invention provide a color filter substrate, a liquid crystal panel and a liquid crystal display. The color filter substrate comprises a plurality of elementary pixels. Each of the elementary pixels comprises sub-pixels in four colors. Among the sub-pixels in four colors, a sub-pixel in at least one of the colors has a number larger than or equal to 2.
摘要翻译：本发明的实施例提供一种滤色器基板，液晶面板和液晶显示器。滤色器基板包括多个基本像素。每个基本像素包括四种颜色的子像素。在四种颜色的子像素中，至少一种颜色的子像素的数目大于或等于2。

10. 发明授权

US09196396B2 Insulator and power transmission line apparatus 有权
标题翻译：绝缘子和输电线路设备
公开(公告)号：US09196396B2
公开(公告)日：2015-11-24
申请号：US13980197
申请日：2011-10-08
申请人： Yan Li , Zhidong Jia , Yuming Zhao , Zhihai Xu , Xiaolin Li , Zhicheng Guan , Weiyan Liao , Xiaoxing Wei , Yu Tan , Yu Deng , Huafeng Su
发明人： Yan Li , Zhidong Jia , Yuming Zhao , Zhihai Xu , Xiaolin Li , Zhicheng Guan , Weiyan Liao , Xiaoxing Wei , Yu Tan , Yu Deng , Huafeng Su
IPC分类号： H01B17/14 , H01B7/28 , H01B17/02 , H01B17/50 , H01B3/28 , H01B9/00 , H01B17/54
CPC分类号： H01B7/28 , H01B3/28 , H01B9/008 , H01B17/02 , H01B17/50 , H01B17/54
摘要： An insulator is disclosed, which includes an insulating surface. A part of the insulating surface is applied with a conductive coating having a specific resistivity. A conductive coating region having the specific resistivity and a nonconductive coating region are configured that: in a dry environment, no continuous conductive channel exists between upper and lower fittings of the insulator. The value of the leakage current that can be caused by the conductive coating region having the specific resistivity on the insulating surface enables the insulating surface to reach an ice-proof temperature in an icing climate condition. Also, a power transmission apparatus in which the insulator is adopted is disclosed. In an icing climate condition, the conductive coating can achieve the function of increasing the value of the leakage current on the surface of the insulator, so as to prevent the ice formation.
摘要翻译：公开了一种绝缘体，其包括绝缘表面。绝缘表面的一部分涂覆有具有电阻率的导电涂层。具有电阻率和非导电涂层区域的导电涂层区域被构造成：在干燥环境中，在绝缘体的上部和下部配件之间不存在连续的导电通道。由绝缘表面上具有电阻率的导电涂层区域引起的漏电流的值使得绝缘表面能够在结冰气候条件下达到防冰温度。另外，公开了采用绝缘体的电力传输装置。在结冰气候条件下，导电涂层可以实现增加绝缘子表面泄漏电流值的功能，从而防止冰层形成。

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