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    Wireless communication apparatus, wireless communication system, and wireless communication method
    55.
    发明授权
    Wireless communication apparatus, wireless communication system, and wireless communication method 有权
    无线通信装置，无线通信系统以及无线通信方式

    公开(公告)号：US08848631B2

    公开(公告)日：2014-09-30

    申请号：US13119796

    申请日：2009-08-31

    申请人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Megumi Ichikawa

    发明人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Kenichi Miyoshi

    IPC分类号： H04B7/204 ,  H04B7/04 ,  H04B7/06

    CPC分类号： H04B7/0426 ,  H04B7/0452 ,  H04B7/0663

    摘要： Interference between users in an MU-MIMO system is minimized by effective precoding, without increasing an overhead of control data. In a wireless communication system in which multiplex communication is possible between multiple UE1, UE2, and BS, a channel estimation and precoding selection unit 539 in BS estimates channels from the respective UE1, UE2 to the BS, determines a precoding matrix P from a projection matrix to make the two channel response matrices orthogonal or nearly orthogonal, and feeds back the precoding matrix P to UE2, and executes precoding on only UE2 of the two. A precoding unit 524 in the UE2 employs the precoding matrix P that has been notified to perform precoding of a data stream, and sends the precoded data stream to the BS.

    摘要翻译： 在MU-MIMO系统中的用户之间的干扰通过有效的预编码被最小化，而不增加控制数据的开销。 在可以在多个UE1，UE2和BS之间进行复用通信的无线通信系统中，BS中的信道估计和预编码选择单元539估计来自相应UE1，UE2到BS的信道，从投影中确定预编码矩阵P 矩阵，以使两个信道响应矩阵正交或接近正交，并且将预编码矩阵P反馈到UE2，并且仅在两者的UE2上执行预编码。 UE2中的预编码单元524采用已经通知的预编码矩阵P来执行数据流的预编码，并将预编码的数据流发送到BS。

    Linearization of broadband power amplifiers
    56.
    发明授权
    Linearization of broadband power amplifiers 有权
    宽带功率放大器的线性化

    公开(公告)号：US08805304B2

    公开(公告)日：2014-08-12

    申请号：US13343631

    申请日：2012-01-04

    申请人： Qian Yu ,  Rajeev Krishnamoorthy ,  Olivier Charlon

    发明人： Qian Yu ,  Rajeev Krishnamoorthy ,  Olivier Charlon

    IPC分类号： H04B1/04

    CPC分类号： H03F1/3258 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45376 ,  H03F3/45892 ,  H03F2200/336 ,  H03F2203/45394 ,  H03F2203/45562 ,  H03F2203/45614 ,  H03F2203/45616

    摘要： An RF linearizer and an associated method are provided for linearizing a power amplifier. The RF linearizer may include: (a) a quadrature up-converter for up-converting a baseband input signal that is to be transmitted by the power amplifier; (b) an RF analog predistorter controlled by a set of coefficients for predistorting the up-converted input signal; (c) a down-converter for down-converting an output signal of the power amplifier; (d) an error monitor receiving the down-converted output signal and the input signal for providing an error signal; and (e) a signal analyzer receiving the error signal, the signal analyzer using an out-of-band power spectrum of the error signal to optimize the set of coefficients. The input signal may have an in-phase component and a quadrature component.

    摘要翻译： 提供RF线性化器和相关联的方法用于线性化功率放大器。 RF线性化器可以包括：（a）用于上变频由功率放大器发送的基带输入信号的正交上变频器; （b）由一组系数控制的RF模拟预失真器，用于预失真上变频的输入信号; （c）用于对功率放大器的输出信号进行下变频的下变频器; （d）误差监视器，接收所述下变频输出信号和所述输入信号以提供误差信号; 以及（e）信号分析仪，其接收误差信号，所述信号分析仪使用所述误差信号的带外功率谱来优化所述系数集合。 输入信号可以具有同相分量和正交分量。

    Bottom ash discharging device for coal-fired boiler
    57.
    发明授权
    Bottom ash discharging device for coal-fired boiler 有权
    燃煤锅炉底灰排放装置

    公开(公告)号：US08746157B2

    公开(公告)日：2014-06-10

    申请号：US13407785

    申请日：2012-02-29

    申请人： Yuwei Wang ,  Zhenqiang Liu ,  Jing Zhang ,  Qian Yu

    发明人： Yuwei Wang ,  Zhenqiang Liu ,  Jing Zhang ,  Qian Yu

    IPC分类号： F23J1/00 ,  F23J1/02 ,  C10J3/34

    CPC分类号： F23J1/02

    摘要： A bottom ash discharging device for a coal-fired boiler including: a clinker case, installed between a bottom ash hopper outlet of the coal-fired boiler and a bottom ash conveyer, an impact bar including a plurality of heat-resistant metal rods supporting inside the clinker case, a clinker crusher, installed above the impact bar for crushing the clinker, and a guiding device, installed between the bottom ash hopper outlet and the clinker crusher for limiting the clinker to drop into the clinker crushing area of the clinker crusher. The bottom ash discharging device ensures that the clinkers drop from the bottom ash hopper outlet to the rear area of the clinker crusher, and that the impact bar can be replaced and repaired without stopping the coal-fired boiler.

    摘要翻译： 一种用于燃煤锅炉的底灰排放装置，包括：安装在燃煤锅炉的底灰料斗出口和底灰输送机之间的熟料箱，包括多个支撑在内部的耐热金属棒的冲击杆 熟料盒，熟料破碎机，安装在冲击棒上方，用于破碎熟料;以及引导装置，安装在底灰斗出料口和熟料破碎机之间，用于限制熟料落入熟料破碎机的熟料破碎区域。 底灰排放装置可确保熟料从底灰料斗出口落到熟料破碎机的后部区域，并可在不停止燃煤锅炉的情况下更换和修理冲击棒。

    Self-adaptive power amplification
    58.
    发明授权
    Self-adaptive power amplification 有权
    自适应功率放大

    公开(公告)号：US08706062B1

    公开(公告)日：2014-04-22

    申请号：US12421324

    申请日：2009-04-09

    申请人： Qian Yu ,  Abhijit G Shanbhag ,  Yan Wang

    发明人： Qian Yu ,  Abhijit G Shanbhag ,  Yan Wang

    IPC分类号： H01Q11/12

    CPC分类号： H03F3/245 ,  H03F1/3223 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/211 ,  H03F2200/336 ,  H03F2201/3209 ,  H03F2201/3224 ,  H03F2203/21106 ,  H03F2203/21142

    摘要： In one embodiment a mixed-signal adaptive integrated circuit is comprised of a pre-distortion circuit operable to receive an RF input signal and to add a pre-distortion signal to the RF input signal to thereby provide a pre-distorted RF input signal, and a power amplifier coupled to the pre-distortion circuit and operable to receive the pre-distorted RF input signal and to provide an amplified RF output signal. The circuit further comprises a compensation module operable to receive the RF input signal and to provide a compensation signal, an auxiliary amplifier coupled to the compensation module and operable to selectively add the compensation signal to the amplified RF output signal, and a signal analyzer operable to receive and process the RF input signal and an RF output feedback signal to generate a first digital control signal for the pre-distortion circuit and a second digital control signal for the compensation module. A method for adaptive control of such a mixed-signal integrated circuit is also provided.

    摘要翻译： 在一个实施例中，混合信号自适应集成电路包括预失真电路，其可操作以接收RF输入信号并将预失真信号添加到RF输入信号，从而提供预失真的RF输入信号，以及 功率放大器，其耦合到所述预失真电路并且可操作以接收所述预失真的RF输入信号并提供放大的RF输出信号。 该电路还包括可操作以接收RF输入信号并提供补偿信号的补偿模块，耦合到补偿模块的辅助放大器，其可操作以选择性地将补偿信号添加到放大的RF输出信号，以及信号分析器，其可操作以 接收和处理RF输入信号和RF输出反馈信号以产生用于预失真电路的第一数字控制信号和用于补偿模块的第二数字控制信号。 还提供了一种用于这种混合信号集成电路的自适应控制的方法。

    Analog signal processor for nonlinear predistortion of radio-frequency signals
    59.
    发明授权
    Analog signal processor for nonlinear predistortion of radio-frequency signals 有权
    用于射频信号非线性预失真的模拟信号处理器

    公开(公告)号：US08331487B2

    公开(公告)日：2012-12-11

    申请号：US12939067

    申请日：2010-11-03

    申请人： Qian Yu ,  Frédéric Roger ,  Adric Q. Broadwell ,  Olivier Charlon

    发明人： Qian Yu ,  Frédéric Roger ,  Adric Q. Broadwell ,  Olivier Charlon

    IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

    CPC分类号： H03F1/3241 ,  H03F3/19 ,  H03F2201/3224 ,  H04B2001/0425

    摘要： RF predistortion apparatus for making linear the output signal of non-linear components such as RF power amplifiers. The apparatus comprises an RF input line for carrying an RF signal connected to an envelope detector for finding the envelope of the RF signal, a power detector for finding the power of the RF signal and a quadrature modulator. The apparatus also comprises a coefficient vector input line for carrying an input signal that carries one or more coefficients to a digitally controlled analog subsystem (DCAS). The DCAS having circuitry for processing both the output of the envelope detector and the output of the power detector by selecting one or more coefficients from the coefficient vector input line for generating a weighted summation of the power of the RF signal and a weighted summation of the envelope voltage of the RF signal that are output to the quadrature modulator. The quadrature modulator has circuitry for mixing the RF input signal with the output of the DCAS to generate a signal for predistorting the RF input signal feeding the power amplifier.

    摘要翻译： 射频预失真装置，用于对诸如RF功率放大器之类的非线性分量的输出信号进行线性化。 该装置包括用于携带连接到包络检测器的RF信号的RF输入线，用于找到RF信号的包络，用于找到RF信号的功率的功率检测器和正交调制器。 该装置还包括一个用于承载一个或多个系数到数字控制的模拟子系统（DCAS）的输入信号的系数向量输入线。 DCAS具有用于通过从系数向量输入线中选择一个或多个系数来处理包络检测器的输出和功率检测器的输出的电路，用于产生RF信号的功率的加权求和和 输出到正交调制器的RF信号的包络电压。 正交调制器具有用于将RF输入信号与DCAS的输出混合以产生用于预失真馈送功率放大器的RF输入信号的信号的电路。

    AUTOMATIC CLEANING MACHINE DRIVEN BY HYDRAULIC POWER FROM BOTTOM OF SWIMMING POOL AND HYDRAULIC DRIVE JAW TYPE CLUTCH IMPELLER COMBINATION THEREOF
    60.
    发明申请
    AUTOMATIC CLEANING MACHINE DRIVEN BY HYDRAULIC POWER FROM BOTTOM OF SWIMMING POOL AND HYDRAULIC DRIVE JAW TYPE CLUTCH IMPELLER COMBINATION THEREOF 有权
    液压动力自动清洗机由游泳池底部和液压驱动器JAW型离合器叶轮组合

    公开(公告)号：US20120279001A1

    公开(公告)日：2012-11-08

    申请号：US13499551

    申请日：2010-06-29

    申请人： Guilan Fu ,  Qian Yu ,  Changsheng Zou ,  Jian Liu ,  Bichang Wang ,  Xinru Gong ,  Xiaozhou Lv ,  Zou Yi Zhi

    发明人： Guilan Fu ,  Qian Yu ,  Changsheng Zou ,  Jian Liu ,  Bichang Wang ,  Xinru Gong ,  Xiaozhou Lv ,  Zou Yi Zhi

    IPC分类号： E04H4/16 ,  F01D7/00

    CPC分类号： E04H4/1654

    摘要： A swimming pool bottom hydraulic pushed automatic cleaner includes an underwater cleaner and a control power supply connected by a buoyancy cable. The underwater cleaner includes a housing cover, housing body, filter, double extension shaft motor assembly, hydraulic driven jaw-type clutch impeller combination, water inlet/outlet flow passage, wheel and bracket, an isolated hood and a cable with floaters. Along with the changing of the rotating direction of the motor, the impeller combination is engaged and disengaged under the action of hydraulic power to change the working state of the impeller, thereby changing water outlet of injection water flow and further changing the travel direction of the cleaner. The housing touches a wall to cause the cleaner to adjust the direction after touching the wall. Furthermore, two or more axial-flow pumps are arranged horizontally and parallelly, so that the cleaner has turning function and orderly complete coverage cleaning is realized.

    摘要翻译： 游泳池底部液压推动自动清洁器包括水下清洁器和通过浮力电缆连接的控制电源。 水下清洁器包括壳体盖，壳体，过滤器，双延伸轴电机组件，液压驱动颚式离合器叶轮组合，进水/出口流动通道，轮和支架，隔离罩和带有浮子的电缆。 随着电动机旋转方向的变化，叶轮组合在液压动力作用下接合和分离，改变了叶轮的工作状态，从而改变了注入水流的出水口，并进一步改变了 清洁器。 外壳接触墙壁，使吸尘器在接触墙壁后调整方向。 此外，两个或更多个轴流泵被水平和平行布置，使得清洁器具有转向功能并且有序地完成覆盖清洁。