Patents by Inventor Shigeki Hirobayashi

Shigeki Hirobayashi 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).

  • SIGNAL ANALYSIS METHOD, SIGNAL ANALYSIS DEVICE AND SIGNAL ANALYSIS PROGRAM
    Publication number: 20100274511
    Abstract: Provided is a signal analysis device that has a high frequency resolution not depending on an analysis window length and can analyze a frequency with considerably high accuracy. When the signal analysis device inputs therein an analysis object signal to be analyzed, the device obtains a frequency f?, amplitude A? and an initial phase ?? such that the sum of squares of a difference between the analysis object signal and a sinusoidal model signal expressed by a phase using the frequency f? and the initial phase ?? and by the amplitude A? is a minimum value.
    Type: Application
    Filed: September 17, 2008
    Publication date: October 28, 2010
    Applicant: National University Corporation University of Toyama
    Inventor: Shigeki Hirobayashi