Patents by Inventor Tatsuru Orikasa

Tatsuru Orikasa 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).

  • Spectrum analyzer system and spectrum analyze method
    Patent number: 8072206
    Abstract: Provided is a spectrum analysis system that measures a signal component at each frequency of an input signal, comprising a sampling section that samples the input signal at prescribed bandwidths to digitize the input signal, and outputs a resulting digital output signal; a converting section that converts the digital output signal from the sampling section into the signal component at each frequency of a unit bandwidth; and an output section that (i) outputs the digital output signal output by the sampling section when a frequency span, which is a frequency range in which the measurement result of the signal component at each frequency of the input signal is output, is greater than or equal to a predetermined reference bandwidth and (ii) outputs the signal component at each frequency converted by the converting section when the frequency span is less than the predetermined reference bandwidth.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: December 6, 2011
    Assignee: Advantest Corporation
    Inventors: Eiji Kanoh, Makoto Nakanishi, Tatsuru Orikasa, Tomoo Yamanouchi
  • SPECTRUM ANALYZER SYSTEM AND SPECTRUM ANALYZE METHOD
    Publication number: 20090302829
    Abstract: Provided is a spectrum analysis system that measures a signal component at each frequency of an input signal, comprising a sampling section that samples the input signal at prescribed bandwidths to digitize the input signal, and outputs a resulting digital output signal; a converting section that converts the digital output signal from the sampling section into the signal component at each frequency of a unit bandwidth; and an output section that (i) outputs the digital output signal output by the sampling section when a frequency span, which is a frequency range in which the measurement result of the signal component at each frequency of the input signal is output, is greater than or equal to a predetermined reference bandwidth and (ii) outputs the signal component at each frequency converted by the converting section when the frequency span is less than the predetermined reference bandwidth.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 10, 2009
    Applicant: ADVANTEST CORPORATION
    Inventors: EIJI KANOH, MAKOTO NAKANISHI, TATSURU ORIKASA, TOMOO YAMANOUCHI