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    • 1. 发明授权
    • Method and system for providing a home cable network
    • 提供家庭有线网络的方法和系统
    • US07730514B1
    • 2010-06-01
    • US10870709
    • 2004-06-16
    • Weimin ZhangThomas Ayers
    • Weimin ZhangThomas Ayers
    • H04N7/173H04N7/20
    • H04N7/106
    • A system for converting digital signals in a cable network is provided. A cable head end provides a plurality of digital signals. The plurality of digital signals are grouped into a first portion and a second portion, the first portion being in a first frequency band and the second portion being in a second frequency band. The system includes a digital channel remapping module configured to select one or more digital signals from the first portion and remap the selected one or more digital signals into a first plurality of analog signals and a digital-to-analog translator configured to convert the digital signals in the second portion to a second plurality of analog signals. The first and second plurality of analog signals are combined and delivered to at least one analog device. Some or all of the second plurality of analog signals are within the first frequency band.
    • 提供了一种用于转换有线网络中的数字信号的系统。 电缆头端提供多个数字信号。 多个数字信号被分组为第一部分和第二部分,第一部分处于第一频带,第二部分处于第二频带。 该系统包括数字信道重映射模块,其被配置为从第一部分选择一个或多个数字信号,并将所选择的一个或多个数字信号重新映射为第一多个模拟信号,以及数模转换器,被配置为转换数字信号 在第二部分到第二多个模拟信号。 第一和第二多个模拟信号被组合并传送到至少一个模拟装置。 第二组多个模拟信号中的部分或全部在第一频带内。
    • 2. 发明申请
    • Method and system for multi-program clock recovery and timestamp correction
    • 多程序时钟恢复和时间戳校正的方法和系统
    • US20060136768A1
    • 2006-06-22
    • US10996582
    • 2004-11-23
    • Binfan LiuThomas AyersWeimin Zhang
    • Binfan LiuThomas AyersWeimin Zhang
    • G06F1/12
    • H04N21/4305H04N5/4401H04N21/4307
    • A decoder includes a transport engine configured to receive programs and extract timing information and timestamps embedded in the programs. An adder is configured to add a set of timing offsets to the sets of timing information to adjust the timing information from a first time basis to a second time basis. Sums of the timing offsets and the timing information are referred to the mapped-timing information. A correction engine is configured to update the timing offsets as timing information is encountered in the programs, and an offset register is configured to: receive the timing offsets, store the timing offsets, and transfer the timing offsets to the adder. The adder is also configured to add the timing offsets to the timestamps to adjust the time basis of the timestamps from the first time basis to the second time basis. A program is decoder configured to receive the adjusted timestamps to decode the programs.
    • 解码器包括被配置为接收节目并提取嵌入在节目中的定时信息和时间戳的传输引擎。 加法器被配置为将一组定时偏移量添加到定时信息组,以便从第一时间基准到第二时间基准来调整定时信息。 定时偏移和定时信息的和被称为映射定时信息。 校正引擎被配置为在程序中遇到定时信息时更新定时偏移,并且偏移寄存器被配置为:接收定时偏移,存储定时偏移,并将定时偏移传送给加法器。 加法器还被配置为将时间偏移量添加到时间戳,以便调整从第一时间到第二时间的时间戳的时间基准。 程序是被配置为接收调整的时间戳以解码程序的解码器。
    • 3. 发明授权
    • Method and system for multi-program clock recovery and timestamp correction
    • 多程序时钟恢复和时间戳校正的方法和系统
    • US07710965B2
    • 2010-05-04
    • US10996582
    • 2004-11-23
    • Binfan LiuThomas AyersWeimin Zhang
    • Binfan LiuThomas AyersWeimin Zhang
    • H04J3/06
    • H04N21/4305H04N5/4401H04N21/4307
    • A decoder includes a transport engine configured to receive programs and extract timing information and timestamps embedded in the programs. An adder is configured to add a set of timing offsets to the sets of timing information to adjust the timing information from a first time basis to a second time basis. Sums of the timing offsets and the timing information are referred to the mapped-timing information. A correction engine is configured to update the timing offsets as timing information is encountered in the programs, and an offset register is configured to: receive the timing offsets, store the timing offsets, and transfer the timing offsets to the adder. The adder is also configured to add the timing offsets to the timestamps to adjust the time basis of the timestamps from the first time basis to the second time basis. A program is decoder configured to receive the adjusted timestamps to decode the programs.
    • 解码器包括被配置为接收节目并提取嵌入在节目中的定时信息和时间戳的传输引擎。 加法器被配置为将一组定时偏移量添加到定时信息组,以便从第一时间基准到第二时间基准来调整定时信息。 定时偏移和定时信息的和被称为映射定时信息。 校正引擎被配置为在程序中遇到定时信息时更新定时偏移,并且偏移寄存器被配置为:接收定时偏移,存储定时偏移,并将定时偏移传送给加法器。 加法器还被配置为将时间偏移量添加到时间戳,以便调整从第一时间到第二时间的时间戳的时间基准。 程序是被配置为接收调整的时间戳以解码程序的解码器。
    • 6. 发明申请
    • Apparatus And Method For Testing Number Of Turns On Coil
    • 线圈圈数测试装置及方法
    • US20120169369A1
    • 2012-07-05
    • US13320212
    • 2009-05-19
    • Wei CaiWeimin ZhangJiangtao Wang
    • Wei CaiWeimin ZhangJiangtao Wang
    • G01R29/20
    • G01R29/20G01R31/346
    • An apparatus for testing number of turns, used for testing the number of turns of a winding coil on an electrical machine stator with concentrated winding, comprising: a base (6); a rod-shaped rotor bracket (4) around one end of which an excitation coil (1) is wound and around the other end of which a standard coil (2) is wound; a joining member for joining the base (6) with the rotor bracket (4) so that the base (6) and the rotor bracket (4) can rotate relative to each other, wherein the plane of the base (6) is parallel to the rotor bracket (4); a fixing member for fixing the electrical machine stator (5) with concentrated winding to the base (6) so as to make the stator (5) concentric and coplanar with the rotor bracket (4); a galvanometer (17) connected to the standard coil (2), which is connected to the tested coil (3) of the stator (5) in reverse polarity to form a loop during testing. Also provided is a method for using the apparatus to test the number of turns. The apparatus for testing number of turns has a simple structure, is of great utility and can test the number of turns of a winding coil on an electrical machine stator with concentrated winding directly.
    • 一种用于测试匝数的装置,用于测试具有集中绕组的电机定子上的绕组线圈的匝数,包括:基座(6); 杆状转子支架(4)围绕其一端缠绕励磁线圈(1)并绕其另一端缠绕有标准线圈(2)的一端; 用于将所述基座(6)与所述转子支架(4)接合的接合构件,使得所述基座(6)和所述转子支架(4)能够相对于彼此旋转,其中所述基座(6)的平面平行于 转子支架(4); 固定构件,用于将具有集中绕组的电机定子(5)固定到基座(6),以使定子(5)与转子支架(4)同心并共面; 连接到标准线圈(2)的电流计(17),其以相反极性连接到定子(5)的测试线圈(3),以在测试期间形成环路。 还提供了一种使用该装置来测试匝数的方法。 用于测试匝数的装置结构简单,具有很大的实用性,可以直接测试集中绕组的电机定子上绕组线圈的匝数。
    • 8. 发明授权
    • Ku-band linearizer bridge
    • Ku波段线性化桥
    • US5789978A
    • 1998-08-04
    • US755952
    • 1996-11-25
    • Weimin ZhangMark AdamsCindy Yuen
    • Weimin ZhangMark AdamsCindy Yuen
    • H03F3/58H03F1/32H03F3/60H03F1/26
    • H03F1/3276H03F1/3252
    • A Ku-band integrated pre-distortion type linearizer bridge circuit for use in linearizing the performance of a traveling wave tube amplifier. The linearizer bridge circuit comprises linearizer bridge that embodies a phase shifter and a fixed delay in a linear arm, and a Schottky diode distortion generator and a PIN diode attenuator in a nonlinear arm. The output of the linearizer bridge is coupled through an output amplifier and an output attenuator. The RF output signal from the linearizer bridge circuit is coupled to the traveling wave tube amplifier. A control circuit is coupled to the phase shifter, the nonlinear Schottky diode distortion generator circuit, and the PIN diode attenuator, and receives on and off input command signals, and outputs a bilevel telemetry signal that is used as a mode indicator for ground command control. The control circuit is used to adjust settings of the Schottky diode distortion generator, the phase shifter, the PIN diode attenuator, and adjust the gain and attenuation settings of the output amplifier and output attenuator. All circuits of the linearizer bridge circuit are integrated onto a single alumina substrate.
    • Ku波段综合预失真型线性化电路桥接电路,用于线性化行波管放大器的性能。 线性化电路桥电路包括线性化桥,其包括线性臂中的移相器和固定延迟,以及非线性臂中的肖特基二极管失真发生器和PIN二极管衰减器。 线性化电桥的输出通过输出放大器和输出衰减器耦合。 来自线性化电桥电路的RF输出信号耦合到行波管放大器。 控制电路耦合到移相器,非线性肖特基二极管失真发生器电路和PIN二极管衰减器,并接收和关闭输入命令信号,并输出用作地面指令控制模式指示器的二级遥测信号 。 控制电路用于调整肖特基二极管失真发生器,移相器,PIN二极管衰减器的设置,并调整输出放大器和输出衰减器的增益和衰减设置。 线性化电桥电路的所有电路都集成在单个氧化铝基板上。
    • 9. 发明授权
    • Apparatus and method for testing number of turns on coil
    • 用于测试线圈匝数的装置和方法
    • US08653850B2
    • 2014-02-18
    • US13320212
    • 2009-05-19
    • Wei CaiWeimin ZhangJiangtao Wang
    • Wei CaiWeimin ZhangJiangtao Wang
    • G01R31/06H02P1/00
    • G01R29/20G01R31/346
    • An apparatus for testing number of turns, used for testing the number of turns of a winding coil on an electrical machine stator with concentrated winding, comprising: a base (6); a rod-shaped rotor bracket (4) around one end of which an excitation coil (1) is wound and around the other end of which a standard coil (2) is wound; a joining member for joining the base (6) with the rotor bracket (4) so that the base (6) and the rotor bracket (4) can rotate relative to each other, wherein the plane of the base (6) is parallel to the rotor bracket (4); a fixing member for fixing the electrical machine stator (5) with concentrated winding to the base (6) so as to make the stator (5) concentric and coplanar with the rotor bracket (4); a galvanometer (17) connected to the standard coil (2), which is connected to the tested coil (3) of the stator (5) in reverse polarity to form a loop during testing. Also provided is a method for using the apparatus to test the number of turns. The apparatus for testing number of turns has a simple structure, is of great utility and can test the number of turns of a winding coil on an electrical machine stator with concentrated winding directly.
    • 一种用于测试匝数的装置,用于测试具有集中绕组的电机定子上的绕组线圈的匝数,包括:基座(6); 杆状转子支架(4)围绕其一端缠绕励磁线圈(1)并绕其另一端缠绕有标准线圈(2)的一端; 用于将所述基座(6)与所述转子支架(4)接合的接合构件,使得所述基座(6)和所述转子支架(4)能够相对于彼此旋转,其中所述基座(6)的平面平行于 转子支架(4); 固定构件,用于将具有集中绕组的电机定子(5)固定到基座(6),以使定子(5)与转子支架(4)同心并共面; 连接到标准线圈(2)的电流计(17),其以相反极性连接到定子(5)的测试线圈(3),以在测试期间形成环路。 还提供了一种使用该装置来测试匝数的方法。 用于测试匝数的装置结构简单,具有很大的实用性,可以直接测试集中绕组的电机定子上绕组线圈的匝数。