Patents by Inventor Changbin Hu

Changbin Hu 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).

  • Dispersion compensation method and device in optical communication system
    Patent number: 8290374
    Abstract: A dispersion compensation method and a dispersion compensation device in an optical communication system are provided. The method mainly includes the following steps. A dispersion compensation value transmitted through a working path at a second wavelength is received through a non-working path at a first wavelength in an optical communication system. The non-working path at the first wavelength and the working path at the second wavelength use the same service channel. Dispersion in the non-working path at the first wavelength is compensated according to the dispersion compensation value. Therefore, no matter the working path is a main path or a backup path, the dispersion compensation value on the non-working path can be accurately regulated in time, such that the dispersion of the working path reaches an optimal status each time after the protection switching occurs to the service, thereby ensuring the fast switching of the service.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: October 16, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junrui Li, Jing Nui, Chunyan Yang, Changbin Hu, Kai Liu
  • DISPERSION COMPENSATION METHOD AND DEVICE IN OPTICAL COMMUNICATION SYSTEM
    Publication number: 20100166435
    Abstract: A dispersion compensation method and a dispersion compensation device in an optical communication system are provided. The method mainly includes the following steps. A dispersion compensation value transmitted through a working path at a second wavelength is received through a non-working path at a first wavelength in an optical communication system. The non-working path at the first wavelength and the working path at the second wavelength use the same service channel. Dispersion in the non-working path at the first wavelength is compensated according to the dispersion compensation value. Therefore, no matter the working path is a main path or a backup path, the dispersion compensation value on the non-working path can be accurately regulated in time, such that the dispersion of the working path reaches an optimal status each time after the protection switching occurs to the service, thereby ensuring the fast switching of the service.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Junrui Li, Jing Niu, Chunyan Yang, Changbin Hu, Kai Liu