Patents by Inventor Takeshi Mizumoto

Takeshi Mizumoto 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: 20160372129
    Abstract: A sound source separating device includes: a sound collecting unit configured to collect sound signals using a plurality of microphones; a sound source localizing unit configured to localize a sound source on the basis of the sound signals collected by the sound collecting unit; a sound source separating unit configured to separate the sound signals collected by the sound collecting unit into sound sources corresponding to the number of fixed sound sources and fixed sound source directions without using the sound source localization result from the sound source localizing unit; and a speech extracting unit configured to extract speech signals of the fixed sound sources on the basis of the sound source localization result from the sound source localizing unit and the sound source separation result from the sound source separating unit.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 22, 2016
    Inventors: Kazuhiro Nakadai, Takeshi Mizumoto, Keisuke Nakamura
  • Publication number: 20160372132
    Abstract: A voice enhancement device includes: a sound receiving unit configured to receive an audio signal; a vehicle state monitor unit configured to monitor a vehicle state; a noise estimation unit configured to estimate a noise component for each frequency component using a cumulative histogram created by accumulating frequency of power of the audio signal received by the sound receiving unit for each frequency component; and a voice enhancer configured to suppress the noise component for each frequency component estimated by the noise estimation unit in the received audio signal, wherein the noise estimation unit resets the cumulative histogram on the basis of a monitoring result of the vehicle state monitor unit.
    Type: Application
    Filed: June 6, 2016
    Publication date: December 22, 2016
    Inventors: Kazuhiro Nakadai, Takeshi Mizumoto, Keisuke Nakamura, Masayuki Takigahira
  • Publication number: 20160307570
    Abstract: A conversation processing apparatus includes a sound collection unit configured to collect voice signals of a plurality of speakers, a conversation recording unit configured to record the voice signals of the speakers collected by the sound collection unit, and a conversation analysis unit configured to calculate a degree to which a conversation between any two speakers is stimulated by analyzing the conversation between the two speakers from the voice signals recorded on the conversation recording unit.
    Type: Application
    Filed: April 6, 2016
    Publication date: October 20, 2016
    Inventors: Takeshi Mizumoto, Kazuhiro Nakadai, Kenta Utsunomiya
  • Publication number: 20160307571
    Abstract: A conversation analysis device includes an utterance data acquisition unit that acquires utterance data representing a voice of each speaker and an utterance of the speaker, a speech state analysis unit that analyzes a speech state of each speaker on the basis of the voice, and a degree-of-contribution calculation unit that calculates a degree of contribution to the conversation of each speaker on the basis of the speech state.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Inventors: Takeshi Mizumoto, Kazuhiro Nakadai
  • Publication number: 20160064000
    Abstract: A sound source-separating device includes a sound-collecting part, an imaging part, a sound signal-evaluating part, an image signal-evaluating part, a selection part that selects whether to estimate a sound source direction based on the first sound signal or the first image signal, a person position-estimating part that estimates a sound source direction using the first image signal, a sound source direction-estimating part that estimates a sound source direction, a sound source-separating part that extracts a second sound signal corresponding to the sound source direction from the first sound signal, an image-extracting part that extracts a second image signal of an area corresponding to the estimated sound source direction from the first image signal, and an image-combining part that changes a third image signal of an area other than the area for the second image signal and combines the third image signal with the second image signal.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 3, 2016
    Inventors: Takeshi Mizumoto, Kazuhiro Nakadai
  • Publication number: 20160055850
    Abstract: An information processing device includes a first information processing unit, a communication unit, and a control unit. The first information processing unit performs predetermined information processing on input data to generate first processing result data. The communication unit is capable of receiving second processing result data generated by a second information processing unit capable of executing the same kind of information processing as the information processing on the input data under a condition with higher versatility. The control unit selects either the first processing result data or the second processing result data according to the use environment of the device.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 25, 2016
    Inventors: Kazuhiro Nakadai, Takeshi Mizumoto, Keisuke Nakamura, Masayuki Takigahira
  • Patent number: 8718823
    Abstract: A thereminist robot has a characteristic model of theremin and is capable of performing in response to an environment of theremin performance by calibrating the characteristic model before the performance. A robot 10 has a first arm 12, a second arm 11, and a pitch model for indicating an arm position corresponding to a pitch of the theremin The robot 10 plays the theremin by moving the first arm 12 to the arm position corresponding to a musical note based on the target note and the pitch model. The robot further has a parameter adjustment unit for adjusting parameters of the pitch model that change depending on environments surrounding the theremin.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: May 6, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hiroshi Tsujino, Hiroshi Okuno, Takeshi Mizumoto
  • Patent number: 8416957
    Abstract: In a sound source localization system using a light emitting device for visualizing sound information, including: a light emitting device (40) including a microphone for receiving sound from a sound source (1, 2) and a light emitting means for emitting light based on the sound from the microphone; a generating section for generating light emitting information for the light emitting device (40); and a sound source localization section (60) for determining a position of the sound source based on the light emitting information from the generating section.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 9, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hiroshi Tsujino, Kazuhiro Nakadai, Hiroshi Okuno, Takeshi Mizumoto, Ikkyu Aihara
  • Publication number: 20110118871
    Abstract: A thereminist robot has a characteristic model of theremin and is capable of performing in response to an environment of theremin performance by calibrating the characteristic model before the performance. A robot 10 has a first arm 12, a second arm 11, and a pitch model for indicating an arm position corresponding to a pitch of the theremin The robot 10 plays the theremin by moving the first arm 12 to the arm position corresponding to a musical note based on the target note and the pitch model.
    Type: Application
    Filed: October 6, 2010
    Publication date: May 19, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi TSUJINO, Hiroshi OKUNO, Takeshi MIZUMOTO
  • Publication number: 20100189271
    Abstract: In a sound source localization system using a light emitting device for visualizing sound information, including: a light emitting device (40) including a microphone for receiving sound from a sound source (1, 2) and a light emitting means for emitting light based on the sound from the microphone; a generating section for generating light emitting information for the light emitting device (40); and a sound source localization section (60) for determining a position of the sound source based on the light emitting information from the generating section.
    Type: Application
    Filed: December 4, 2009
    Publication date: July 29, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi TSUJINO, Kazuhiro NAKADAI, Hiroshi OKUNO, Takeshi MIZUMOTO, Ikkyu AIHARA
  • Patent number: 5007882
    Abstract: A belt transmission for a very small size shovel car which improves the starting performance of an engine for the shovel car to permit employment as such engine of a small size engine having a low output power. The belt transmission comprises a first pulley mounted on an output shaft of the engine, second and third pulleys mounted commonly on an input shaft of a transmission case of the shovel car, a first belt extending between and around the first and second pulleys, a belt tension clutch movable to and from an operative position in which it engages with the first belt to cause the first belt to transmit power from the first pulley to the second pulley, a fourth pulley mounted on an input shaft of a hydraulic pump of the shovel car, and a second belt extending between and around the third and fourth pulleys.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 16, 1991
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takeshi Mizumoto, Yoshiaki Murakami