Patents by Inventor Atsuhi Kunimatsu

Atsuhi Kunimatsu 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).

  • Arithmetic processor which latches data in a temporary register before the data is latched in a general purpose register
    Patent number: 5895498
    Abstract: A data processor has a general purpose register for storing arithmetic data and arithmetic results; an arithmetic device for MAC for performing a predetermined arithmetic operation by using the arithmetic data read from the general purpose register and outputting its arithmetic results to the general purpose register after a predetermined cycle; an arithmetic device for DIV for performing a predetermined arithmetic operation by using data read from the general purpose register and outputting its arithmetic results after a cycle longer than the predetermined cycle relative to the arithmetic device for MAC; and a temporary storing register for storing the arithmetic results outputted from the arithmetic device for DIV until the next arithmetic operation is terminated.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: April 20, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Maki Ueno, Nobuhiro Ide, Atsuhi Kunimatsu