Patents by Inventor Xianghu Qu

Xianghu Qu 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).

  • Lightning protection radio remote unit, distributed base station, lightning protection system and method
    Patent number: 9425614
    Abstract: Embodiments of the present invention disclose a lightning protection radio remote unit RRU, which includes a primary circuit, a secondary circuit, and a working circuit, where the primary circuit and the secondary circuit are configured to convert a power supply output by a power supply system into a working power supply to power the working circuit; the shield layer located on the RRU side of the shielded cable and the shield layer located on the power supply system side of the shielded cable are grounded respectively; a surge over-voltage withstand capability between the primary circuit and the earth is not less than a lightning over-voltage; a surge over-voltage withstand capability between each inner conductor in the shielded cable and the shield layer of the shielded cable is not less than the lightning over-voltage.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 23, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ying Xiong, Xianghu Qu
  • LIGHTNING PROTECTION RADIO REMOTE UNIT, DISTRIBUTED BASE STATION, LIGHTNING PROTECTION SYSTEM AND METHOD
    Publication number: 20130342949
    Abstract: Embodiments of the present invention disclose a lightning protection radio remote unit RRU, which includes a primary circuit, a secondary circuit, and a working circuit, where the primary circuit and the secondary circuit are configured to convert a power supply output by a power supply system into a working power supply to power the working circuit; the shield layer located on the RRU side of the shielded cable and the shield layer located on the power supply system side of the shielded cable are grounded respectively; a surge over-voltage withstand capability between the primary circuit and the earth is not less than a lightning over-voltage; a surge over-voltage withstand capability between each inner conductor in the shielded cable and the shield layer of the shielded cable is not less than the lightning over-voltage.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Ying Xiong, Xianghu Qu