公开(公告)号：US08385873B2

公开(公告)日：2013-02-26

申请号：US13118270

申请日：2011-05-27

申请人： Jianjun Zhou ,  Zhuobiao He ,  Fan Yang ,  Yusong Chi ,  Meng Wang ,  Hongyu Wang ,  Xinfang Liu ,  Min Yi ,  Xinrong Hu

发明人： Jianjun Zhou ,  Zhuobiao He ,  Fan Yang ,  Yusong Chi ,  Meng Wang ,  Hongyu Wang ,  Xinfang Liu ,  Min Yi ,  Xinrong Hu

IPC分类号： H04B1/16

CPC分类号： H04B1/26 ,  H03D7/1441 ,  H03D7/1458

摘要： An equivalent radio frequency (RF) notch filter, an RF chip, and a receiver are provided. The equivalent RF notch filter includes: a local oscillation (LO) circuit, configured to provide a LO frequency signal; configured to be connected in parallel with the main chain, and down-convert signals of the main chain; and a frequency selective circuit realized by impedance difference, configured to provide different impedances for down-converted signals with different frequencies from the mixing circuit, so as to absorb the signals that need to be suppressed.

摘要翻译： 提供等效射频（RF）陷波滤波器，RF芯片和接收器。 等效RF陷波滤波器包括：本地振荡（LO）电路，被配置为提供LO频率信号; 被配置为与主链并联连接，并降低主链的信号; 以及通过阻抗差实现的频率选择电路，被配置为针对来自混合电路的具有不同频率的下变频信号提供不同的阻抗，以便吸收需要抑制的信号。

公开(公告)号：US20110230157A1

公开(公告)日：2011-09-22

申请号：US13118270

申请日：2011-05-27

申请人： Jianjun ZHOU ,  Zhuobiao HE ,  Fan YANG ,  Yusong CHI ,  Meng WANG ,  Hongyu WANG ,  Xinfang LIU ,  Min YI ,  Xinrong HU

发明人： Jianjun ZHOU ,  Zhuobiao HE ,  Fan YANG ,  Yusong CHI ,  Meng WANG ,  Hongyu WANG ,  Xinfang LIU ,  Min YI ,  Xinrong HU

IPC分类号： H04B1/16 ,  H03H7/48 ,  G06G7/16

CPC分类号： H04B1/26 ,  H03D7/1441 ,  H03D7/1458

摘要： An equivalent radio frequency (RF) notch filter, an RF chip, and a receiver are provided. The equivalent RF notch filter includes: a local oscillation (LO) circuit, configured to provide a LO frequency signal; configured to be connected in parallel with the main chain, and down-convert signals of the main chain; and a frequency selective circuit realized by impedance difference, configured to provide different impedances for down-converted signals with different frequencies from the mixing circuit, so as to absorb the signals that need to be suppressed.

摘要翻译： 提供等效射频（RF）陷波滤波器，RF芯片和接收器。 等效RF陷波滤波器包括：本地振荡（LO）电路，被配置为提供LO频率信号; 被配置为与主链并联连接，并降低主链的信号; 以及通过阻抗差实现的频率选择电路，被配置为针对来自混合电路的具有不同频率的下变频信号提供不同的阻抗，以便吸收需要抑制的信号。

公开(公告)号：US20200229737A1

公开(公告)日：2020-07-23

申请号：US16821962

申请日：2020-03-17

申请人： Weiqiang HAO ,  Zhuobiao HE ,  Mingchao WANG ,  Yining WANG

发明人： Weiqiang HAO ,  Zhuobiao HE ,  Mingchao WANG ,  Yining WANG

IPC分类号： A61B5/11 ,  A61B8/08 ,  A61B6/00 ,  A61B6/03 ,  A61B90/00 ,  A61B5/055 ,  A61B5/00 ,  A61B6/04

摘要： The present disclosure relates to a positioning system suitable for use in an imaging system. The positioning system may include one or more cameras configured to capture images or videos of an imaging object and surrounding environment thereof for ROI targeting or patient position recognition. The positioning system may also include one or more position probes and sources configured to determine an instant location of an imaging object or an ROI thereof in a non-contact manner.

公开(公告)号：US20110134972A1

公开(公告)日：2011-06-09

申请号：US13026914

申请日：2011-02-14

申请人： Yuanrong ZHU ,  Jianjun CHEN ,  Zhuobiao HE ,  Jianfeng WU ,  Ming XU ,  Yi ZHANG ,  Yuntao ZHU ,  Pinghua HE

发明人： Yuanrong ZHU ,  Jianjun CHEN ,  Zhuobiao HE ,  Jianfeng WU ,  Ming XU ,  Yi ZHANG ,  Yuntao ZHU ,  Pinghua HE

IPC分类号： H04B17/00 ,  H04B1/38 ,  H04L27/06 ,  H04L27/04 ,  H04L25/49

CPC分类号： H01Q1/246 ,  H01Q3/267 ,  H01Q3/34 ,  H04B7/0617 ,  H04B7/0842 ,  H04B17/11 ,  H04B17/21

摘要： An active antenna, a base station, a method for refreshing the amplitude and phase, and a signal processing method are disclosed to simplify the structure of a phase shifter and guarantee the reliability of the phase shifter. The active antenna or the base station includes an antenna dipole array, a transceiver array, a digital processing unit (DPU), and a transceiving calibration unit. During signal reception, the transceiver demodulates a radio frequency (RF) signal of the antenna dipole into an IQ analog signal, and outputs the IQ analog signal to the DPU; the DPU converts the demodulated IQ analog signal into an IQ digital signal, and performs digital beam forming (DBF) on the IQ digital signal according to the transceiving calibration unit; during signal transmission, the transceiver modulates the IQ analog signal of the DPU into an RF signal, and outputs the RF signal to the antenna dipole; the DPU converts a signal of a base band unit (BBU) into an IQ digital signal in serial/parallel (S/P) mode, and performs DBF on the IQ digital signal according to the transceiving calibration unit.

摘要翻译： 公开了有源天线，基站，振幅和相位刷新的方法以及信号处理方法，以简化移相器的结构并保证移相器的可靠性。 有源天线或基站包括天线偶极子阵列，收发器阵列，数字处理单元（DPU）和收发校准单元。 在信号接收期间，收发器将天线偶极子的射频（RF）信号解调为IQ模拟信号，并将IQ模拟信号输出到DPU; DPU将解调的IQ模拟信号转换为IQ数字信号，并根据收发校准单元对IQ数字信号进行数字波束形成（DBF）; 在信号传输期间，收发器将DPU的IQ模拟信号调制成RF信号，并将RF信号输出到天线偶极子; DPU将基带单元（BBU）的信号以串行/并行（S / P）模式转换为IQ数字信号，并根据收发校准单元对IQ数字信号执行DBF。