Patents by Inventor Rintaro IKESHITA

Rintaro IKESHITA 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).

  • Publication number: 20190115043
    Abstract: There is provided a sound source separation method of carrying out sound source separation of an audio signal inputted from an input device by using a modeled sound source distribution, by an information processing apparatus provided with a processing device, a storage device, the input device, and an output device. In this method, as a condition followed by the model, sound sources are independent of one another, powers which the sound sources have are modeled for each of frequency bands obtained through band division, a relationship among the powers for the frequency bands different from each other is modeled by nonnegative matrix factorization, and components obtained through the division of the sound source follow a complex normal distribution.
    Type: Application
    Filed: August 31, 2018
    Publication date: April 18, 2019
    Applicant: HITACHI, LTD.
    Inventors: Rintaro IKESHITA, Yohei KAWAGUCHI