Patents by Inventor Osamu Ikedea

Osamu Ikedea 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).

  • Drive control system for microprocessor according to operational state and ambient temperature condition thereof
    Patent number: 5664201
    Abstract: A drive control system for a microprocessor comprises a switching circuit 5 for varying a drive condition of the microprocessor by varying a processing speed and a power consumption in mutually related manner, an operational state dependent control portion including a status judgment circuit 7, an address monitoring circuit 8, and an address detecting circuit 9, for monitoring the operational state of the microprocessor and controlling the switching circuit 5 for adapting the processing speed to the operational state, and a temperature dependent control portion comprising a temperature sensor 10 and a comparator 11, for lowering the power consumption of the microprocessor when the temperature condition of the microprocessor higher than a predetermined criterion temperature is detected.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: September 2, 1997
    Assignee: Dia Semicon Systems Incorporated
    Inventor: Osamu Ikedea