Patents by Inventor Nobuhiko Usui

Nobuhiko Usui 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).

  • Light transmission equipment
    Patent number: 6763038
    Abstract: In a light transmission equipment which can generate a desired concatenation signal from a maximum concatenation signal standardized in a synchronous transmission mode, a master and a slave circuit for clock change are provided respectively inputting at least two data at a maximum transmission rate based on a concatenation standard of a synchronous transmission mode obtained by dividing a desired transmission rate not prescribed in the concatenation standard to perform a concatenation control to the slave circuit by control information from the master circuit side.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: July 13, 2004
    Assignee: Fujitsu Limited
    Inventors: Nobuhiko Usui, Koji Matsunaga, Masayuki Maehira, Tatsuya Toyozumi, Yumiko Ogata, Masahiro Shioda, Atsuki Taniguchi