Patents by Inventor Zhuobiao He

Zhuobiao He has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Equivalent radio frequency notch filter, radio frequency chip, and receiver
    Patent number: 8385873
    Abstract: 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.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 26, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianjun Zhou, Zhuobiao He, Fan Yang, Yusong Chi, Meng Wang, Hongyu Wang, Xinfang Liu, Min Yi, Xinrong Hu
  • EQUIVALENT RADIO FREQUENCY NOTCH FILTER, RADIO FREQUENCY CHIP, AND RECEIVER
    Publication number: 20110230157
    Abstract: 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.
    Type: Application
    Filed: May 27, 2011
    Publication date: September 22, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jianjun ZHOU, Zhuobiao HE, Fan YANG, Yusong CHI, Meng WANG, Hongyu WANG, Xinfang LIU, Min YI, Xinrong HU
  • ACTIVE ANTENNA, BASE STATION, METHOD FOR REFRESHING AMPLITUDES AND PHASES, AND METHOD FOR PROCESSING SIGNALS
    Publication number: 20110134972
    Abstract: 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.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 9, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yuanrong ZHU, Jianjun CHEN, Zhuobiao HE, Jianfeng WU, Ming XU, Yi ZHANG, Yuntao ZHU, Pinghua HE