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    • 3. 发明授权
    • Systems and methods for optimizing timing phase in modem devices
    • 用于优化调制解调器设备中的时序相位的系统和方法
    • US08855255B2
    • 2014-10-07
    • US10113230
    • 2002-03-29
    • Qing ChenQian Cheng
    • Qing ChenQian Cheng
    • H04L7/00
    • H04L7/0029H04L2025/0349
    • Systems and methods are provided for performing the required phase calculation in a telecommunications system in order to optimize system performance more quickly and with reduced complexity as compared to prior approaches to solving this problem. In accordance with the preferred exemplary embodiment of the present invention, the phase delay of the precursor equalizer (EQ) is calculated off-line and as a result it is not necessary to fill the precursor EQ delay line with the indicated number of symbols as in the previous approach. Additionally, because the precursor EQ is fractionally spaced, both sine and cosine values of the 4kHz tone's initial phase can be achieved simultaneously. As a result, only 36 quick timing sequence (QTS) symbols are needed in order to perform the required estimation.
    • 提供系统和方法用于在电信系统中执行所需的相位计算,以便与解决该问题的先前方法相比,更快地并且以更低的复杂性优化系统性能。 根据本发明的优选示例性实施例,前离散均衡器(EQ)的相位延迟是离线计算的,因此不需要用所指示的符号数填充前体EQ延迟线,如 以前的做法。 另外,由于前驱体EQ分数间隔,所以可以同时实现4kHz音调的初始相位的正弦和余弦值。 因此,为了执行所需的估计,仅需要36个快速定时序列(QTS)符号。
    • 4. 发明授权
    • Compact switched-capacitor FIR filter implementation
    • 紧凑型开关电容FIR滤波器实现
    • US08768998B1
    • 2014-07-01
    • US13291715
    • 2011-11-08
    • Uday DasguptaQing Chen
    • Uday DasguptaQing Chen
    • G06G7/02
    • H03H15/00H03H19/004
    • A system is provided to perform non-recursive signal processing using a sampled data technique and a parallel network of switched-capacitor filters. The input analog signal is sampled in a time sequence manner at regular time intervals to obtain analog-valued samples. These samples are collected into data blocks that are assembled into a set of data blocks. The successive data blocks belonging to a set of data blocks partially overlap with the first data block. The non-recursive signal processing is performed on all of the data blocks of the set substantially simultaneously, using the parallel network to produce a processed analog output signal. Each individual processing path of the parallel network processes a specific data block of the set of data blocks. The number of parallel processing paths is the same as one plus the degree of the polynomial representing the desired or overall input/output equation characterizing the non-recursive signal processing.
    • 提供了一种使用采样数据技术和开关电容滤波器的并联网络执行非递归信号处理的系统。 以规则的时间间隔以时间顺序对输入的模拟信号进行采样,以获得模拟值采样。 这些样本被收集到被组装成一组数据块的数据块中。 属于一组数据块的连续数据块与第一数据块部分重叠。 使用并行网络基本上同时对所述集合的所有数据块执行非递归信号处理,以产生经处理的模拟输出信号。 并行网络的每个单独处理路径处理该组数据块的特定数据块。 并行处理路径的数量与一个加上代表表征非递归信号处理的期望或总体输入/输出方程的多项式的程度相同。
    • 5. 发明授权
    • Texture-pattern-adaptive partitioned block transform
    • 纹理图案自适应分割块变换
    • US08666177B2
    • 2014-03-04
    • US13511547
    • 2009-12-04
    • Zhi Bo ChenXiao Zhong XuQu Qing Chen
    • Zhi Bo ChenXiao Zhong XuQu Qing Chen
    • G06K9/36G06K9/46
    • H04N19/14H04N19/119H04N19/122H04N19/176H04N19/46
    • The invention is related to encoding an image block of an image using a partitioned block transform. The inventors recognized that applying a texture-pattern associated invertible mapping to the pixels of a first partition, said first partition resulting from partitioning said image block according to a current texture pattern with which said texture-pattern associated invertible mapping is associated, allows for limiting the maximum number of required first 1-D transforms to not exceeding a number of columns in the image block as well as limiting the maximum number of required second 1-D transforms to not exceeding a number of rows in the image block, also. Achieving limitation of maximum required 1-D transforms enables more efficient implementation on hardware and improves encoding performance but also allows for further partitions according to texture patterns which comprise at least one of multiple strips, texture patterns with highly unsymmetrical pixel distribution and non-directional texture patterns.
    • 本发明涉及使用分区块变换对图像的图像块进行编码。 发明人认识到,将纹理图案相关的可逆映射应用于第一分区的像素,所述第一分区是根据与所述纹理图案相关联的可逆映射相关联的当前纹理图案对所述图像块进行分区而产生的,允许限制 所需的第一个1-D的最大数量变换为不超过图像块中的列数,并且将所需的第二个1-D变换的最大数量限制为不超过图像块中的行数。 实现最大需要的1-D变换的限制使得能够在硬件上更有效地实现并提高编码性能,并且还允许根据包括多个条纹,纹理图案和非定向纹理 模式。
    • 9. 发明申请
    • POWER COMPENSATION APPARATUS AND METHOD FOR RENEWABLE ENERGY SYSTEM
    • 电力补偿装置和可再生能源系统的方法
    • US20130051105A1
    • 2013-02-28
    • US13324434
    • 2011-12-13
    • Chang-Yong WangQing Chen
    • Chang-Yong WangQing Chen
    • H02M7/5387
    • H02M7/5387H02J3/16H02J3/1807H02M1/42H02M7/487Y02B70/12Y02E40/34
    • A power compensation apparatus for a renewable energy system includes a plurality of converter modules positioned between any two phases of a three-phase AC electrical grid, each converter module including a plurality of inverter circuits connected in series. Each inverter circuit includes an energy storage unit for providing a direct current (DC) voltage; a capacitor connected to the energy storage unit; and an H-bridge circuit converting the DC voltage into an alternating current (AC) voltage. The converter modules perform reactive power compensation and active power regulation on the electrical grid in a delta connection. A plurality of converter modules are respectively positioned between any two phases of the electrical grid in a delta connection, so as to keep the voltage of the electrical grid continuously stable when the voltage of the electrical grid fluctuates, and also compensate load current when system load is not balanced.
    • 用于可再生能源系统的功率补偿装置包括位于三相交流电网的任何两相之间的多个转换器模块,每个转换器模块包括串联连接的多个逆变器电路。 每个逆变器电路包括用于提供直流(DC)电压的能量存储单元; 连接到能量存储单元的电容器; 以及将DC电压转换成交流(AC)电压的H桥电路。 转换器模块在三角形连接中对电网进行无功功率补偿和有功功率调节。 多个转换器模块分别位于三角形连接中的电网的任何两相之间,以便当电网的电压波动时使电网的电压持续稳定,并且还在系统负载时补偿负载电流 不平衡