Patents by Inventor Takahiro Onitsuka

Takahiro Onitsuka 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).

  • Method of accessing multiple virtual address spaces and computer system
    Patent number: 5295251
    Abstract: A computer system operable as a virtual machine system capable of accessing multiple virtual address spaces, which has an access register translation means for translating a space identifier into an origin address of a table for address translation and a translation pair memory for storing translation pairs of the space identifiers and the associated origin addresses. In each entry of the translation pair memory, a field is provided in association with the translation pair, for storing a machine identifier of the guest virtual machine associated with the translation pair. When accessing a virtual address space, a guest virtual machine makes reference only to the associated translation pair based on the virtual machine identifier thereof.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: March 15, 1994
    Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.
    Inventors: Fujio Wakui, Takahiro Onitsuka, Izumi Nozaki, Toshinori Kuwabara