Patents by Inventor Mutsumi Terai

Mutsumi Terai 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).

  • Test apparatus for an oscillation circuit incorporated in IC
    Publication number: 20030132775
    Abstract: A test apparatus includes, a plurality of band pass filters, each having a different center frequency, to which an oscillation signal of the PLL circuit is supplied. Further, a counter corresponding to each band pass filter counts the signal output from the band pass filter. The result of the counting by the counters is supplied to a test circuit. The test circuit detects defectiveness of the PLL circuit based on received results of the counting.
    Type: Application
    Filed: July 1, 2002
    Publication date: July 17, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Satoshi Yamanaka, Mutsumi Terai