Patents by Inventor Kiyohisa HIGASHI

Kiyohisa HIGASHI 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).

  • Patent number: 10685637
    Abstract: A noise masking device includes: an acquisition unit that acquires (i) frequency information indicating a frequency of a noise in a vehicle or frequency-correlated information correlated to the frequency and (ii) vehicle information relating to a characteristic of the noise; a signal source that generates a masker signal for outputting a masker sound that masks the noise in the vehicle; a pitch-shifting unit that pitch-shifts the masker signal according to the frequency information or the frequency-correlated information acquired by the acquisition unit to generate a pitch-shifted masker signal; an adjustment unit that performs, on the pitch-shifted masker signal, an adjustment according to the vehicle information acquired by the acquisition unit to generate an adjusted masker signal; and an output unit that outputs the adjusted masker signal as the masker sound.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 16, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhisa Kotegawa, Kiyohisa Higashi
  • Patent number: 10290295
    Abstract: Provided is a sound masking device that can effectively mask a noise at a predetermined position in a vehicle. Sound masking device includes: information acquisition unit that acquires frequency information indicating a frequency of a noise; signal source that generates a masker signal in order to output a masker sound masking the noise; pitch shifting unit that performs pitch shifting on the masker signal according to the frequency information that has been acquired; first corrector that performs correction on the masker signal after the pitch shifting according to the predetermined position; and output unit that outputs the masker signal after the correction.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: May 14, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhisa Kotegawa, Kiyohisa Higashi
  • Publication number: 20190130887
    Abstract: A noise masking device includes: an acquisition unit that acquires (i) frequency information indicating a frequency of a noise in a vehicle or frequency-correlated information correlated to the frequency and (ii) vehicle information relating to a characteristic of the noise; a signal source that generates a masker signal for outputting a masker sound that masks the noise in the vehicle; a pitch-shifting unit that pitch-shifts the masker signal according to the frequency information or the frequency-correlated information acquired by the acquisition unit to generate a pitch-shifted masker signal; an adjustment unit that performs, on the pitch-shifted masker signal, an adjustment according to the vehicle information acquired by the acquisition unit to generate an adjusted masker signal; and an output unit that outputs the adjusted masker signal as the masker sound.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 2, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT D.
    Inventors: Kazuhisa KOTEGAWA, Kiyohisa HIGASHI
  • Publication number: 20180166061
    Abstract: Provided is a sound masking device that can effectively mask a noise at a predetermined position in a vehicle. Sound masking device includes: information acquisition unit that acquires frequency information indicating a frequency of a noise; signal source that generates a masker signal in order to output a masker sound masking the noise; pitch shifting unit that performs pitch shifting on the masker signal according to the frequency information that has been acquired; first corrector that performs correction on the masker signal after the pitch shifting according to the predetermined position; and output unit that outputs the masker signal after the correction.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 14, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhisa KOTEGAWA, Kiyohisa HIGASHI