Patents by Inventor Shigeharu TOYODA

Shigeharu TOYODA 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 AND FAILED TERMINAL IDENTIFICATION METHOD FOR PON COMMUNICATION SYSTEM
    Publication number: 20180359028
    Abstract: A method according to an embodiment of the present invention relates to a failure terminal identification method that can identify an optical network unit ONU having caused a failure in which the optical network unit ONU continuously sends a continuous signal.
    Type: Application
    Filed: January 15, 2016
    Publication date: December 13, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hisashi KATAYAMA, Shigeharu TOYODA