Patents by Inventor Tosikazu Yasue

Tosikazu Yasue 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).

  • Communication processing system in which communication by terminals is controlled according to a terminal management table
    Patent number: 5155857
    Abstract: A terminal controller detects state of a plurality of terminal devices by polling system, and the detected state is in a terminal management table possessed by the terminal controller and each terminal device, and the communication processing is performed corresponding to the table content. The terminal controller and each terminal device comprise respectively a main processor connected through a bus to a main memory and a communication control adapter. The communication control adapter is composed of a local processor, a local memory and a communication data send/receive circuit, and terminal management table region is provided on the main memory and the local memory. The local processor executes management of the terminal management table, and rewrites the terminal management information on the local memory and at the same time transfers the terminal management information onto the main memory by the DMA function provided on the communication control adapter.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: October 13, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Osamu Kunisaki, Tosikazu Yasue, Shiro Oishi, Yuuji Saeki