Patents by Inventor Sigeki Higashijima

Sigeki Higashijima 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).

  • Processor system with coprocessor
    Publication number: 20030222877
    Abstract: A processor has a data cache that is connected to a coprocessor via a bus, in which the coprocessor writes results of operations performed within the coprocessor in the data cache inside the processor. The data cache is equipped with a function to write data in a tag memory or a data memory according to a write request from the bus, and the coprocessor is equipped with an address generation device that is capable of designating an address of the data cache as a write address.
    Type: Application
    Filed: May 16, 2003
    Publication date: December 4, 2003
    Applicant: HITACHI, LTD.
    Inventors: Kazuhiko Tanaka, Koji Hosogi, Sigeki Higashijima, Kiyokazu Nishioka