Patents by Inventor Yingxin HU

Yingxin 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).

  • Optical time-domain reflectometry signal detection method and apparatus
    Patent number: 9194763
    Abstract: The present invention provides an optical time-domain reflectometry signal detection method, including the following steps: modulating, under the control of a correlation code pattern sequence respectively, n detection optical signals transmitted by detection light sources of different wavelengths into n pulse optical signals, where n is a natural number greater than or equal to 2; combining the n pulse optical signals and outputting a detection optical signal to an optical fiber under test; receiving a backscattered optical signal from the optical fiber under test and dividing the backscattered optical signal into n optical signals according to wavelengths; and performing correlation processing on the n optical signals according to the correlation code pattern sequence and outputting a correlation optical time-domain reflectometry signal. The present invention further provides an optical time-domain reflectometry signal detection apparatus.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: November 24, 2015
    Assignee: Huawei Marine Networks Co., Ltd.
    Inventors: Yingxin Hu, Guangjun Wang, Daizhen Chao
  • OPTICAL TIME-DOMAIN REFLECTOMETRY SIGNAL DETECTION METHOD AND APPARATUS
    Publication number: 20140078506
    Abstract: The present invention provides an optical time-domain reflectometry signal detection method, including the following steps: modulating, under the control of a correlation code pattern sequence respectively, n detection optical signals transmitted by detection light sources of different wavelengths into n pulse optical signals, where n is a natural number greater than or equal to 2; combining the n pulse optical signals and outputting a detection optical signal to an optical fiber under test; receiving a backscattered optical signal from the optical fiber under test and dividing the backscattered optical signal into n optical signals according to wavelengths; and performing correlation processing on the n optical signals according to the correlation code pattern sequence and outputting a correlation optical time-domain reflectometry signal. The present invention further provides an optical time-domain reflectometry signal detection apparatus.
    Type: Application
    Filed: October 28, 2013
    Publication date: March 20, 2014
    Applicant: Huawei Marine Networks Co., Ltd.
    Inventors: Yingxin HU, Guangjun WANG, Daizhen CHAO