Patents by Inventor Mitsuru Tachibana

Mitsuru Tachibana 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).

  • Patent number: 5764394
    Abstract: An interface device includes a transmission level converting circuit for converting a differential amplitude voltage of different signs, output from an IC for a transmission line driving circuit pursuant to IEEE 802.3 10 Base T, into an output voltage of a single pole code. The interface device also includes a reception level conversion circuit for converting a voltage of a single pole code into a differential amplitude voltage of different signs to an IC for driving a transmission line driving circuit, and an optical transceiver to which the single pole code voltage is input and output. A transmission line driving circuit is provided to enable connection to an optical fiber via the optical transceiver.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: June 9, 1998
    Assignee: NEC Corporation
    Inventors: Shuntaro Yamazaki, Takayuki Nyu, Morihisa Momona, Mitsuru Tachibana