Patents by Inventor Xiaofei Xia

Xiaofei Xia 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).

  • Tunable antenna and communications terminal
    Patent number: 11601145
    Abstract: A tunable antenna. includes a radio frequency integrated circuit, a first frequency modulation branch coupled to the radio frequency integrated circuit, a first antenna coupled to the radio frequency integrated circuit through the first frequency modulation branch, a second antenna coupled to the radio frequency integrated circuit through a second frequency modulation branch. The first antenna corresponds to a first frequency, the second antenna corresponds to a second frequency, and the first frequency and the second frequency are respectively a transmit frequency and a receive frequency in a specified frequency band. The first antenna and the second antenna are respectively connected to the radio frequency integrated circuit through the frequency modulation branches when the tunable antenna is being designed.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: March 7, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qiuliang Xu, Jianwen Lei, Meng Hou, Dan Qiu, Hui Wang, Xiaofei Xia
  • Tunable Antenna and Communications Terminal
    Publication number: 20210281281
    Abstract: A tunable antenna. includes a radio frequency integrated circuit, a first frequency modulation branch coupled to the radio frequency integrated circuit, a first antenna coupled to the radio frequency integrated circuit through the first frequency modulation branch, a second antenna coupled to the radio frequency integrated circuit through a second frequency modulation branch. The first antenna corresponds to a first frequency, the second antenna corresponds to a second frequency, and the first frequency and the second frequency are respectively a transmit frequency and a receive frequency in a specified frequency band. The first antenna and the second antenna are respectively connected to the radio frequency integrated circuit through the frequency modulation branches when the tunable antenna is being designed.
    Type: Application
    Filed: July 31, 2018
    Publication date: September 9, 2021
    Inventors: Qiuliang Xu, Jianwen Lei, Meng Hou, Dan Qiu, Hui Wang, Xiaofei Xia
  • Desktop heater
    Patent number: D1023260
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Shenzhen Yichuang Technology Semiconductor Co., Ltd.
    Inventor: Xiaofei Xia
  • Hand warmer
    Patent number: D1065559
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: March 4, 2025
    Assignee: Shenzhen Yichuang Technology Semiconductor Co., Ltd.
    Inventor: Xiaofei Xia