Patents by Inventor Toshihide Okabe

Toshihide Okabe 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).

  • Common system with a plurality of processors using a common memory and utilizing an interrupt signal
    Patent number: 5375219
    Abstract: A plurality of processors and a particular processor use a common memory. A requesting processor requesting communication with the particular processor writes data at a predetermined address of the common memory which corresponds to the requesting processor. Upon writing the data into the common memory, an interruption signal is produced to interrupt the particular processor. The particular processor processes the interruption signal and determines which of the plurality of processors requested the communication with the particular processor and reads data from the address area in the common memory which corresponds to the requesting processor, thereby enabling communication between the requesting and particular processors to be conducted.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: December 20, 1994
    Assignee: Fujitsu Limited
    Inventor: Toshihide Okabe