Patents by Inventor Tsuyoshi Oono

Tsuyoshi Oono 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).

  • Transmission circuit
    Patent number: 7898289
    Abstract: A transmission circuit includes a plurality of transmission lines connected in a ring to propagate signals among a plurality of devices. The plurality of transmission lines have a predetermined same propagation delay, and a predetermined transmission line impedance, and the predetermined transmission line impedance is a half or less of an output impedance of each of the plurality of devices. When a signal outputted from a first optional one of the plurality of devices is propagated to the plurality of devices other than the first optional device, the signal outputted from the first optional device exceeds a predetermined threshold of a signal voltage at a same time.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 1, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Tsuyoshi Oono
  • TRANSMISSION CIRCUIT
    Publication number: 20090315635
    Abstract: A transmission circuit includes a plurality of transmission lines connected in a ring to propagate signals among a plurality of devices. The plurality of transmission lines have a predetermined same propagation delay, and a predetermined transmission line impedance, and the predetermined transmission line impedance is a half or less of an output impedance of each of the plurality of devices. When a signal outputted from a first optional one of the plurality of devices is propagated to the plurality of devices other than the first optional device, the signal outputted from the first optional device exceeds a predetermined threshold of a signal voltage at a same time.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Inventor: Tsuyoshi Oono