Patents by Inventor Geng Dan

Geng Dan 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).

  • Optical line terminal, optical network unit and passive optical network system
    Patent number: 9071405
    Abstract: The invention discloses are an optical line terminal, an optical network unit, a passive optical network system, an upstream bandwidth allocation method and a rate adaptation method. The OLT comprises: an optical module, a clock and data recovery module, a media access control chip and a control module, wherein, the optical module is configured to receive upstream data sent by ONUs having different transmission rates; the clock and data recovery module is configured to receive the upstream data, recover a clock signal according to the upstream data, and send the upstream data and the clock signal to the media access control chip; the media access control chip is configured to save the upstream data and the clock signal; the control module is configured to, according to the clock signal, acquire an upstream rate of the upstream data, and allocate an upstream bandwidth to the ONU according to the upstream rate.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: June 30, 2015
    Assignee: ZTE CORPORATION
    Inventors: Zhu Songlin, Geng Dan, Zhang Weiliang, Zhang Dezhi
  • Optical Line Terminal, Optical Network Unit and Passive Optical Network System
    Publication number: 20130294774
    Abstract: The invention discloses are an optical line terminal, an optical network unit, a passive optical network system, an upstream bandwidth allocation method and a rate adaptation method. The OLT comprises: an optical module, a clock and data recovery module, a media access control chip and a control module, wherein, the optical module is configured to receive upstream data sent by ONUs having different transmission rates; the clock and data recovery module is configured to receive the upstream data, recover a clock signal according to the upstream data, and send the upstream data and the clock signal to the media access control chip; the media access control chip is configured to save the upstream data and the clock signal; the control module is configured to, according to the clock signal, acquire an upstream rate of the upstream data, and allocate an upstream bandwidth to the ONU according to the upstream rate.
    Type: Application
    Filed: July 22, 2011
    Publication date: November 7, 2013
    Applicant: ZTE CORPORATION
    Inventors: Zhu Songlin, Geng Dan, Zhang Weiliang, Zhang Dezhi