Patents by Inventor Kosuke Hosoya

Kosuke Hosoya 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: 20210319800
    Abstract: A frequency band expansion device includes processing circuitry to calculate a weighting coefficient based on a frequency gradient of the input signal; to generate a white noise signal; to generate a first white noise signal by performing filtering on the white noise signal; to generate a second white noise signal by regulating a phase characteristic of the white noise signal; to generate a third white noise signal by performing weighted addition on the first white noise signal and the second white noise signal by using the weighting coefficient; and to generate the output signal by adding together the input signal and a signal corresponding to the third white noise signal, wherein the processing circuitry is configured so that the phase characteristic of the second white noise signal becomes the same as the phase characteristic of the first white noise signal.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 14, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Patent number: 11076252
    Abstract: An audio signal processing apparatus includes; a first correlation component separating unit configured to predict a first signal from a second signal in a predetermined period to generate a first correlation component signal and to separate the first non-correlation component signal from the first signal by using the first correlation component signal; a second correlation component separating unit configured to predict a second signal from the first signal in the predetermined period to generate a second correlation component signal and to separate the second non-correlation component signal from the second signal by using the second correlation component signal; a correlation component synthesizing unit configured to synthesize the first correlation component signal and the second correlation component signal to generate a synthesized correlation component signal; a first gain multiplying unit configured to multiply the synthesized correlation component signal by a gain to generate a correlation component
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: July 27, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Hosoya, Masaru Kimura
  • Publication number: 20210080937
    Abstract: An information analysis device includes a processor and a storage unit. The processor includes: a worker information calculator to calculate worker information including at least one of an action speed of a worker and a position of the worker based on first information acquired from a first detector; a progress information calculator to calculate work progress information including a progress speed of the work based on second information acquired from a second detector; a product information calculator to calculate product information including at least one of a stock quantity of the product and a position of the product based on third information acquired from a third detector; and an information connection extractor to generate data indicating a connection between at least two types of information, among the worker information, the work progress information and the product information, in regard to each of a plurality of predetermined time slots.
    Type: Application
    Filed: February 15, 2018
    Publication date: March 18, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoshi SAKURAI, Hiroyasu NEGISHI, Masaru KIMURA, Tomoharu AWANO, Kosuke HOSOYA
  • Publication number: 20210044912
    Abstract: An audio signal processing apparatus includes; a first correlation component separating unit configured to predict a first signal from a second signal in a predetermined period to generate a first correlation component signal and to separate the first non-correlation component signal from the first signal by using the first correlation component signal; a second correlation component separating unit configured to predict a second signal from the first signal in the predetermined period to generate a second correlation component signal and to separate the second non-correlation component signal from the second signal by using the second correlation component signal; a correlation component synthesizing unit configured to synthesize the first correlation component signal and the second correlation component signal to generate a synthesized correlation component signal; a first gain multiplying unit configured to multiply the synthesized correlation component signal by a gain to generate a correlation component
    Type: Application
    Filed: February 9, 2018
    Publication date: February 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Patent number: 10771895
    Abstract: An audio signal processing device includes a high pass filter to convert an input audio signal into a first audio signal and to output the first audio signal, a displacement estimation unit to estimate displacement amplitude of a speaker diaphragm when the input audio signal is inputted, a saturation processing unit to perform saturation processing to the displacement amplitude estimated in the displacement estimation unit or to a signal obtained by correcting the displacement amplitude, an audio signal generation unit to generate a second audio signal by using displacement amplitude obtained after the saturation processing in the saturation processing unit, and an output generation unit to generate an output signal by using the first and the second audio signals. With this configuration, a cracking sound of a speaker is reduced and a user is allowed to feel low frequency components.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Hosoya, Masaru Kimura
  • Publication number: 20200007982
    Abstract: An audio signal processing device includes a high pass filter to convert an input audio signal into a first audio signal and to output the first audio signal, a displacement estimation unit to estimate displacement amplitude of a speaker diaphragm when the input audio signal is inputted, a saturation processing unit to perform saturation processing to the displacement amplitude estimated in the displacement estimation unit or to a signal obtained by correcting the displacement amplitude, an audio signal generation unit to generate a second audio signal by using displacement amplitude obtained after the saturation processing in the saturation processing unit, and an output generation unit to generate an output signal by using the first and the second audio signals. With this configuration, a cracking sound of a speaker is reduced and a user is allowed to feel low frequency components.
    Type: Application
    Filed: March 14, 2017
    Publication date: January 2, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Patent number: 9530430
    Abstract: An input signal analyzer determines a boundary frequency within the limit of a range which does not exceed a first frequency from the mode of an input signal. A spectrum compressor compresses a power spectrum of frequencies in a band higher than the first frequency in a frequency direction. A gain corrector performs a gain correction on the compressed power spectrum. A spectrum synthesizer reflects the power spectrum outputted from the gain corrector in a band determined by both the first frequency and the boundary frequency. A frequency-to-time converter converts both a synthesized power spectrum provided by the spectrum synthesizer and a phase spectrum of the input signal into ones in the time domain, and outputs these spectra.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: December 27, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoru Furuta, Kosuke Hosoya
  • Patent number: 9390718
    Abstract: A sound source generating unit 101 generates from a narrowband audio signal not passing through noise suppression a sound source signal including a fine structure of a band to be restored. On the other hand, a noise suppressing unit 102 performs noise suppression of the narrowband audio signal and a spectral envelope estimating unit 103 estimates an spectral envelope of the band to be restored. A signal synthesizing unit 104 generates a pseudo-audio signal by combining the sound source signal and the spectral envelope, and the band-pass filter unit 105 passes the pseudo-audio signal of the band to be restored, and the signal addition unit 106 generates a broadband audio restoration signal by adding the pseudo-audio signal of the band to be restored to the narrowband audio signal.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: July 12, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kosuke Hosoya, Satoru Furuta, Tadashi Yamaura
  • Publication number: 20160005420
    Abstract: An input signal analyzer determines a boundary frequency within the limit of a range which does not exceed a first frequency from the mode of an input signal. A spectrum compressor compresses a power spectrum of frequencies in a band higher than the first frequency in a frequency direction. A gain corrector performs a gain correction on the compressed power spectrum. A spectrum synthesizer reflects the power spectrum outputted from the gain corrector in a band determined by both the first frequency and the boundary frequency. A frequency-to-time converter converts both a synthesized power spectrum provided by the spectrum synthesizer and a phase spectrum of the input signal into ones in the time domain, and outputs these spectra.
    Type: Application
    Filed: January 15, 2014
    Publication date: January 7, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoru FURUTA, Kosuke HOSOYA
  • Publication number: 20140207443
    Abstract: A sound source generating unit 101 generates from a narrowband audio signal not passing through noise suppression a sound source signal including a fine structure of a band to be restored. On the other hand, a noise suppressing unit 102 performs noise suppression of the narrowband audio signal and a spectral envelope estimating unit 103 estimates an spectral envelope of the band to be restored. A signal synthesizing unit 104 generates a pseudo-audio signal by combining the sound source signal and the spectral envelope, and the band-pass filter unit 105 passes the pseudo-audio signal of the band to be restored, and the signal addition unit 106 generates a broadband audio restoration signal by adding the pseudo-audio signal of the band to be restored to the narrowband audio signal.
    Type: Application
    Filed: December 27, 2011
    Publication date: July 24, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kosuke Hosoya, Satoru Furuta, Tadashi Yamaura