Patents by Inventor Mitsunori Hirayama

Mitsunori Hirayama 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).

  • Tracing system
    Patent number: 4571677
    Abstract: A tracing system for confirming an instruction which is executed by a central processing unit in accordance with an address of each instruction is provided with an AND gate for controlling such signal indicating coincidence between the address and trace address by utilizing a valid signal indicating that the contents of a memory address register of the central processing unit are true addresses of the instruction to be executed in the next stage.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: February 18, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Mitsunori Hirayama, Kimio Yamanaka