Patents by Inventor Yuyun Zhai

Yuyun Zhai 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).

  • Antenna interface circuit, data card, and antenna connection control method and apparatus
    Patent number: 10128884
    Abstract: A circuit includes a main connector and a single-pole double-throw switch. A common contact of the main connector is used as a port of a main receiver, and a normally-closed contact of the main connector is used as a port of a main antenna. Furthermore, a normally-open contact of the main connector is used as a port of an external antenna, and a common contact of the single-pole double-throw switch is used as a port of a diversity receiver. Additionally, a normally-closed contact of the single-pole double-throw switch is used as port of a diversity antenna, and a normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: November 13, 2018
    Assignee: HUAWEI DEVICE (SHENZHEN) CO., LTD.
    Inventors: Kun Zhao, Hugen Qin, Yajun Wang, Yuyun Zhai, Hang Lan
  • Antenna Interface Circuit, Data Card, and Antenna Connection Control Method and Apparatus
    Publication number: 20160352375
    Abstract: A circuit includes a main connector and a single-pole double-throw switch. A common contact of the main connector is used as a port of a main receiver, and a normally-closed contact of the main connector is used as a port of a main antenna. Furthermore, a normally-open contact of the main connector is used as a port of an external antenna, and a common contact of the single-pole double-throw switch is used as a port of a diversity receiver. Additionally, a normally-closed contact of the single-pole double-throw switch is used as port of a diversity antenna, and a normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector.
    Type: Application
    Filed: February 19, 2014
    Publication date: December 1, 2016
    Inventors: Kun Zhao, Hugen Qin, Yajun Wang, Yuyun Zhai, Hang Lan