Patents by Inventor Minming Zhang

Minming Zhang 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).

  • Wavelength division and time division multiplex mixing passive optical network system, terminal and signal transmission method
    Patent number: 8554079
    Abstract: A wavelength division and time division hybrid multiplexing passive optical network system, terminals and a signal transmission method are disclosed in the present invention. The system comprises: a plurality of optical modules at the optical line terminal side connecting to an office all-optical wavelength conversion unit, the all-optical wavelength conversion unit connecting with a subscriber all-optical wavelength conversion unit via a fiber, and the subscriber all-optical wavelength conversion unit connecting with a plurality of optical couplers, and each optical couplers connecting with a plurality of optical network units respectively; the present invention facilitates full use of the existing source of access network and ensures a smooth transition from the time division multiplexing passive optical network to the optical access network of the next generation without changing the structure of the current time division passive optical network.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: October 8, 2013
    Assignee: ZTE Corporation
    Inventors: Deming Liu, Songlin Zhu, Minming Zhang, Hai Liu, Li Zhang, Changjian Ke, Sui Xiao
  • Wavelength Division and Time Division Multiplex Mixing Passive Optical Network System, Terminal and Signal Transmission Method
    Publication number: 20100196011
    Abstract: A wavelength division and time division hybrid multiplexing passive optical network system, terminals and a signal transmission method are disclosed in the present invention. The system comprises: a plurality of optical modules at the optical line terminal side connecting to an office all-optical wavelength conversion unit, the all-optical wavelength conversion unit connecting with a subscriber all-optical wavelength conversion unit via a fiber, and the subscriber all-optical wavelength conversion unit connecting with a plurality of optical couplers, and each optical couplers connecting with a plurality of optical network units respectively; the present invention facilitates full use of the existing source of access network and ensures a smooth transition from the time division multiplexing passive optical network to the optical access network of the next generation without changing the structure of the current time division passive optical network.
    Type: Application
    Filed: September 5, 2008
    Publication date: August 5, 2010
    Applicants: ZTE CORPORATION, HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Deming Liu, Songlin Zhu, Minming Zhang, Hai Liu, Li Zhang, Changjian Ke, Sui Xiao