Patents by Inventor Kohji Kameda

Kohji Kameda 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).

  • Arbitration method of a bus bridge
    Patent number: 7433989
    Abstract: A bus bridge interfaces a primary-side bus with a plurality of secondary-side buses. The primary side bus is a local bus in a system and the secondary-side buses are external buses connected to the system. The bus bridge supports a plurality of kinds of operations one of which is an operation related to a serial bus in accordance with IEEE1394. An access right is given equally to each of the secondary-side buses, when access demands to the primary-side bus are lodged from more than two of the secondary side buses at the same time, by not giving a priority to any one of the secondary side buses.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: October 7, 2008
    Assignee: Ricoh Company, Ltd.
    Inventor: Kohji Kameda
  • Arbitration method of a bus bridge
    Publication number: 20050216646
    Abstract: A bus bridge interfaces a primary-side bus with a plurality of secondary-side buses. The primary side bus is a local bus in a system and the secondary-side buses are external buses connected to the system. The bus bridge supports a plurality of kinds of operations one of which is an operation related to a serial bus in accordance with IEEE1394. An access right is given equally to each of the secondary-side buses, when access demands to the primary-side bus are lodged from more than two of the secondary side buses at the same time, by not giving a priority to any one of the secondary side buses.
    Type: Application
    Filed: May 19, 2005
    Publication date: September 29, 2005
    Inventor: Kohji Kameda
  • Arbitration method of a bus bridge
    Patent number: 6910091
    Abstract: A bus bridge interfaces a primary-side bus with a plurality of secondary-side buses. The primary side bus is a local bus in a system and the secondary-side buses are external buses connected to the system. The bus bridge supports a plurality of kinds of operations one of which is an operation related to a serial bus in accordance with IEEE1394. An access right is given equally to each of the secondary-side buses, when access demands to the primary-side bus are lodged from more than two of the secondary side buses at the same time, by not giving a priority to any one of the secondary side buses.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: June 21, 2005
    Assignee: Ricoh Company, Ltd.
    Inventor: Kohji Kameda