Patents by Inventor Yoshiaki Gokan

Yoshiaki Gokan 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 and apparatus for diagnosing CPU for CPU-runaway-preventing circuit
    Patent number: 5408648
    Abstract: A method and apparatus for preventing runaway of CPU using a battery voltage as a power source voltage, in which the operation of CPU and the power source voltage of the CPU are inspected at the abnormal operation of the CPU and/or at the abnormal reduction of the power source voltage of CPU, system resetting is effected on the CPU, system reset signals for the CPU are counted. When the number of system reset signals for a predetermined time satisfies predetermined conditions, it is judged that the CPU is in failure. When the abnormal reduction of the power source voltage of the CPU is detected, the counting of system reset signals is prohibited.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: April 18, 1995
    Assignee: Japan Electronic Control Systems Co., Ltd.
    Inventors: Yoshiaki Gokan, Shigeru Akaishi