Patents by Inventor Mototsugu Abe

Mototsugu Abe 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: 11460491
    Abstract: Provided is a sensor in which a current sensor that detects a current of a power line as a change in a magnetic field and a voltage sensor that detects a voltage of the power line using capacitive coupling are integrally formed. The transmission of signals related to substantially the same sections is omitted in order to effectively compress an output signal from the sensor and an output signal from the voltage sensor. When the amplitude and phase of a fundamental wave which are estimated from the output signal from the sensor and the amplitude and phase of harmonics are encoded, the amplitude and phase of the harmonics are relativized with a value for the fundamental wave.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: October 4, 2022
    Assignee: Informetis Corporation
    Inventors: Kenji Arashima, Takashi Shibuya, Mototsugu Abe, Masayuki Nishiguchi
  • Publication number: 20210033652
    Abstract: Provided is a sensor in which a current sensor that detects a current of a power line as a change in a magnetic field and a voltage sensor that detects a voltage of the power line using capacitive coupling are integrally formed. The transmission of signals related to substantially the same sections is omitted in order to effectively compress an output signal from the sensor and an output signal from the voltage sensor. When the amplitude and phase of a fundamental wave which are estimated from the output signal from the sensor and the amplitude and phase of harmonics are encoded, the amplitude and phase of the harmonics are relativized with a value for the fundamental wave.
    Type: Application
    Filed: September 21, 2020
    Publication date: February 4, 2021
    Inventors: Kenji ARASHIMA, Takashi SHIBUYA, Mototsugu ABE, Masayuki NISHIGUCHI
  • Patent number: 10816579
    Abstract: Provided is a sensor in which a current sensor that detects a current of a power line as a change in a magnetic field and a voltage sensor that detects a voltage of the power line using capacitive coupling are integrally formed. The transmission of signals related to substantially the same sections is omitted in order to effectively compress an output signal from the sensor and an output signal from the voltage sensor. When the amplitude and phase of a fundamental wave which are estimated from the output signal from the sensor and the amplitude and phase of harmonics are encoded, the amplitude and phase of the harmonics are relativized with a value for the fundamental wave.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: October 27, 2020
    Assignee: Informetis Corporation
    Inventors: Kenji Arashima, Takashi Shibuya, Mototsugu Abe, Masayuki Nishiguchi
  • Patent number: 10580428
    Abstract: The present technology relates to an audio processing apparatus, an audio processing method, and a program which enable to appropriately eliminate a noise. An audio processing apparatus includes a sound collector which collects audio, an audio enhancer which enhances audio to be extracted using an audio signal collected by the sound collector, an audio attenuator which attenuates the audio to be extracted using the audio signal collected by the sound collector, a noise environment estimator which estimates a surrounding noise environment, and a post-filtering unit which performs post-filtering processing using an audio-enhanced signal from the audio enhancer and an audio-attenuated signal from the audio attenuator, in which the post-filtering unit sets strength of processing for noise elimination according to the noise environment by the noise environment estimator. The present technology can be applied to an apparatus which performs audio recognition processing, such as a mobile phone.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 3, 2020
    Assignee: SONY CORPORATION
    Inventors: Keiichi Osako, Takashi Shibuya, Toshiyuki Sekiya, Mototsugu Abe
  • Patent number: 9762193
    Abstract: A sound processing apparatus includes a sound determination portion operable to determine whether an input sound includes a first sound emitted from a particular source based on location information of the source, a sound separation portion operable to separate the input sound into the first sound and a second sound emitted from a source different from the particular source if the sound determination portion determines that the input sound includes the first sound, and a sound mixing portion operable to mix the first sound and the second sound separated by the sound separation portion at a prescribed volume ratio.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 12, 2017
    Assignee: SONY CORPORATION
    Inventors: Ryuichi Namba, Mototsugu Abe, Akira Inoue, Keisuke Toyama, Shusuke Takahashi, Masayuki Nishiguchi
  • Publication number: 20170229137
    Abstract: The present technology relates to an audio processing apparatus, an audio processing method, and a program which enable to appropriately eliminate a noise. An audio processing apparatus includes a sound collector which collects audio, an audio enhancer which enhances audio to be extracted using an audio signal collected by the sound collector, an audio attenuator which attenuates the audio to be extracted using the audio signal collected by the sound collector, a noise environment estimator which estimates a surrounding noise environment, and a post-filtering unit which performs post-filtering processing using an audio-enhanced signal from the audio enhancer and an audio-attenuated signal from the audio attenuator, in which the post-filtering unit sets strength of processing for noise elimination according to the noise environment by the noise environment estimator. The present technology can be applied to an apparatus which performs audio recognition processing, such as a mobile phone.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 10, 2017
    Inventors: KEIICHI OSAKO, TAKASHI SHIBUYA, TOSHIYUKI SEKIYA, MOTOTSUGU ABE
  • Patent number: 9674606
    Abstract: There is provided a signal processing device including a feature amount extraction unit configured to extract, from a frequency-domain signal obtained by frequency conversion on a voice signal, a feature amount of the frequency-domain signal, and a determination unit configured to determine, based on the extracted feature amount, presence or absence of noise in the voice signal within a predetermined section. The feature amount is composed of a plurality of elements. The plurality of elements contain an element defined based on a correlation value between a feature amount waveform which is a waveform according to the frequency-domain signal in the voice signal within the predetermined section and a feature amount waveform within another section sequential in time to the predetermined section.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 6, 2017
    Assignee: Sony Corporation
    Inventors: Keiichi Osako, Mototsugu Abe
  • Patent number: 9595998
    Abstract: There is provided a sampling point adjustment apparatus including: a frequency conversion unit that converts a first signal and a second signal into a first narrow band signal and a second narrow band signal through frequency conversion; a central position determination unit that determines a central position of a window of the frequency conversion for the second signal based on an estimated value of a sampling interval offset between the first narrow band signal and the second narrow band signal; and a phase control unit that controls a phase of the second narrow band signal based on the estimated value.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 14, 2017
    Assignee: SONY CORPORATION
    Inventors: Mototsugu Abe, Masayuki Nishiguchi
  • Patent number: 9495950
    Abstract: There is provided an audio signal processing device including a feature amount extraction unit configured to extract, from an audio signal obtained by a sound collection unit, a feature amount that indicates a pulsed operation sound generated from a sound generation unit provided in a same housing as the sound collection unit, and a noise determination unit configured to determine whether or not the operation sound is included in the audio signal based on the feature amount.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 15, 2016
    Assignee: Sony Corporation
    Inventors: Keiichi Osako, Toshiyuki Sekiya, Mototsugu Abe
  • Patent number: 9418678
    Abstract: A sound processing device includes: a nonlinear processing unit that outputs a plurality of sound signals including sound sources existing in predetermined areas by performing a nonlinear process for a plurality of observed signals that are generated by a plurality of sound sources and are observed by a plurality of sensors; a signal selecting unit that selects a sound signal including a specific sound source from among the plurality of sound signals output by the nonlinear processing unit and the observed signal including the plurality of sound sources; and a sound separating unit that separates a sound signal including the specific sound source that is selected by the signal selecting unit from the observed signal selected by the signal selecting unit.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: August 16, 2016
    Assignee: SONY CORPORATION
    Inventors: Toshiyuki Sekiya, Mototsugu Abe
  • Patent number: 9398387
    Abstract: There is provided a sound processing device including an input signal processing unit configured to calculate a first acoustic feature quantity indicating a likelihood being of a sinusoidal wave of a signal in each time frequency domain and a second acoustic feature quantity different from the first acoustic feature quantity based on an input signal of content to be identified, a reference signal processing unit configured to calculate the first acoustic feature quantity and the second acoustic feature quantity based on a reference signal of content prepared in advance, and a matching processing unit configured to calculate a similarity between the input signal and the reference signal based on the first and second acoustic feature quantities of the input signal and the first and second acoustic feature quantities of the reference signal.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: July 19, 2016
    Assignee: Sony Corporation
    Inventors: Takashi Shibuya, Mototsugu Abe, Masayuki Nishiguchi
  • Publication number: 20150331025
    Abstract: Provided is a sensor in which a current sensor that detects a current of a power line as a change in a magnetic field and a voltage sensor that detects a voltage of the power line using capacitive coupling are integrally formed. The transmission of signals related to substantially the same sections is omitted in order to effectively compress an output signal from the sensor and an output signal from the voltage sensor. When the amplitude and phase of a fundamental wave which are estimated from the output signal from the sensor and the amplitude and phase of harmonics are encoded, the amplitude and phase of the harmonics are relativized with a value for the fundamental wave.
    Type: Application
    Filed: February 14, 2013
    Publication date: November 19, 2015
    Inventors: Kenji ARASHIMA, Takashi SHIBUYA, Mototsugu ABE, Masayuki NISHIGUCHI
  • Patent number: 9109971
    Abstract: A respiratory condition analysis apparatus includes a respiratory signal acquisition section configured to acquire a time-series respiratory signal including respiratory sound of a living body, a respiratory segment identification section configured to identify a respiratory segment that is a time segment including the respiratory sound in the respiratory signal, a feature value generation section configured to generate a predetermined feature value of the respiratory signal for the identified respiratory segment, and a respiratory abnormality degree generation section configured to generate a degree of abnormality of the respiratory sound included in the respiratory signal on the basis of the feature value.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: August 18, 2015
    Assignee: SONY CORPORATION
    Inventors: Mototsugu Abe, Chika Myoga, Masayuki Nishiguchi
  • Patent number: 9113241
    Abstract: Disclosed herein is a noise removing apparatus, including: an object sound emphasis section adapted to carry out an object sound emphasis process for observation signals of first and second microphones to produce an object sound estimation signal; a noise estimation section adapted to carry out a noise estimation process for the observation signals to produce a noise estimation signal; a post filtering section adapted to remove noise components remaining in the object sound estimation signal using the noise estimation signal; a correction coefficient calculation section adapted to calculate, for each frequency, a correction coefficient for correcting the post filtering process based on the object sound estimation signal and the noise estimation signal; and a correction coefficient changing section adapted to change those of the correction coefficients which belong to a frequency band suffering from spatial aliasing such that a peak appearing at a particular frequency is suppressed.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 18, 2015
    Assignee: Sony Corporation
    Inventors: Keiichi Osako, Toshiyuki Sekiya, Ryuichi Namba, Mototsugu Abe
  • Publication number: 20150117656
    Abstract: There is provided a sampling point adjustment apparatus including: a frequency conversion unit that converts a first signal and a second signal into a first narrow band signal and a second narrow band signal through frequency conversion; a central position determination unit that determines a central position of a window of the frequency conversion for the second signal based on an estimated value of a sampling interval offset between the first narrow band signal and the second narrow band signal; and a phase control unit that controls a phase of the second narrow band signal based on the estimated value.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 30, 2015
    Inventors: Mototsugu ABE, Masayuki NISHIGUCHI
  • Patent number: 9002489
    Abstract: A signal processing apparatus includes an absolute value unit configured to convert an audio signal into absolute values, a representative value calculation unit configured to calculate representative values of consecutive sample values included in blocks of the audio signal which has been converted into the absolute values using at least maximum sample values among values of the samples included in the blocks for individual blocks, an average value calculation unit configured to determine a section which includes a predetermined number of consecutive blocks as a frame and calculate a maximum value of the representative values of the blocks included in the frame and an average value of the representative values of the blocks included in the frame, and a detector configured to detect click noise in the frame on the basis of a ratio of the maximum value to the average value.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Keisuke Toyama, Mototsugu Abe
  • Patent number: 8996367
    Abstract: There is provided a sound processing apparatus including a sound separation unit that separates an input sound into a plurality of sounds caused by a plurality of sound sources, a sound type estimation unit that estimates sound types of the plurality of sounds separated by the sound separation unit, a mixing ratio calculation unit that calculates a mixing ratio of each sound in accordance with the sound type estimated by the sound type estimation unit, and a sound mixing unit that mixes the plurality of sounds separated by the sound separation unit in the mixing ratio calculated by the mixing ratio calculation unit.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: March 31, 2015
    Assignee: Sony Corporation
    Inventors: Ryuichi Namba, Mototsugu Abe, Masayuki Nishiguchi
  • Publication number: 20150046103
    Abstract: Estimating operational states of a plurality of electrical devices connected to an electrical power line, that is, an electricity usage condition is appropriately carried out. Current and voltage are calculated as time-series from the electrical power line to which the plurality of electrical devices is connected. Signal components of power frequency and harmonics thereof are extracted from the time-series of the current and the voltage. Admittance vector time-series are calculated from the signal components. The admittance vector time-series are compared with combinations of feature vectors of the plurality of electrical devices connected to the electrical power line, to obtain an estimated result of the operational states of the plurality of electrical devices.
    Type: Application
    Filed: February 18, 2013
    Publication date: February 12, 2015
    Applicant: SONY CORPORATION
    Inventors: Mototsugu Abe, Takashi Shibuya, Masayuki Nishiguchi
  • Publication number: 20150043737
    Abstract: There is provided a sound detecting apparatus including: a feature value extracting unit which extracts a feature value per every predetermined time from an input time signal; a feature value maintaining unit which maintains a feature value sequence of a predetermined number of detection target sound items; and a comparison unit which respectively compares a feature value sequence extracted by the feature value extracting unit with a feature value sequence of the maintained predetermined number of detecting target sound items and obtains detection results of the predetermined number of detection target sound items every time the feature value extracting unit newly extracts a feature value, wherein the feature value extracting unit includes a time frequency transform unit and a likelihood distribution detecting unit, smooths the obtained likelihood distribution in frequency and time directions, and extracts a feature value per the predetermined time.
    Type: Application
    Filed: April 16, 2013
    Publication date: February 12, 2015
    Applicant: SONY CORPORATION
    Inventors: Mototsugu Abe, Masayuki Nishiguchi, Yoshinori Kurata
  • Patent number: 8913157
    Abstract: A mechanical noise suppression apparatus includes: a framing section adapted to divide an input signal into frames of a predetermined time length; a Fourier transform section adapted to transform framed signals obtained by the framing section into a frequency spectrum of a frequency domain; a mechanical noise reduction section adapted to correct the frequency spectrum of the input signal obtained by the Fourier transform section based on frequency spectrum information of mechanical noise to suppress the mechanical noise; an inverse Fourier transform section adapted to return the frequency spectrum corrected by the mechanical noise reduction section into framed signals of a time domain; and a frame synthesis section adapted to carry out frame synthesis of the framed signals of frames obtained by the inverse Fourier transform section to obtain an output signal in which the mechanical noise is suppressed.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: December 16, 2014
    Assignee: Sony Corporation
    Inventors: Keiichi Osako, Toshiyuki Sekiya, Toshiyuki Kumakura, Mototsugu Abe