Patents by Inventor Makoto KUMON

Makoto KUMON 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).

  • Acoustic signal processing device and method
    Patent number: 9190047
    Abstract: An acoustic signal processing device includes a frequency domain transform unit configured to transform an acoustic signal to a frequency domain signal for each channel, a filter coefficient calculation unit configured to calculate at least two sets of filter coefficients of a filter for each section having a predefined number of frames with respect to a sampled signal obtained by sampling the frequency domain signal transformed by the frequency domain transform unit for each frame such that the magnitude of a residual calculated based on a filter compensating for the difference in transfer characteristics between the channels of the acoustic signal is minimized, and an output signal calculation unit configured to calculate an output signal of a frequency domain based on the frequency domain signal transformed by the frequency domain transform unit and at least two sets of filter coefficients calculated by the filter coefficient calculation unit.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: November 17, 2015
    Assignees: HONDA MOTOR CO., LTD., KUMAMOTO UNIVERSITY
    Inventors: Kazuhiro Nakadai, Makoto Kumon, Yasuaki Oda
  • ACOUSTIC SIGNAL PROCESSING DEVICE, ACOUSTIC SIGNAL PROCESSING METHOD, AND ACOUSTIC SIGNAL PROCESSING PROGRAM
    Publication number: 20140029758
    Abstract: An acoustic signal processing device includes a frequency domain transform unit configured to transform an acoustic signal to a frequency domain signal for each channel, a filter coefficient calculation unit configured to calculate at least two sets of filter coefficients of a filter for each section having a predefined number of frames with respect to a sampled signal obtained by sampling the frequency domain signal transformed by the frequency domain transform unit for each frame such that the magnitude of a residual calculated based on a filter compensating for the difference in transfer characteristics between the channels of the acoustic signal is minimized, and an output signal calculation unit configured to calculate an output signal of a frequency domain based on the frequency domain signal transformed by the frequency domain transform unit and at least two sets of filter coefficients calculated by the filter coefficient calculation unit.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicants: Kumamoto University, Honda Motor Co., Ltd.
    Inventors: Kazuhiro NAKADAI, Makoto KUMON, Yasuaki ODA