Patents by Inventor Hiroshi Okuno
Hiroshi Okuno 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).
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Publication number: 20140278372Abstract: An ambient sound retrieving device includes a sound input unit receiving a sound signal, a sound recognition unit performing a speech recognition process on the sound signal and generating an onomatopoeic word, a sound data storage unit storing an ambient sound and an onomatopoeic word corresponding to the ambient sound, a correlation information storage unit storing correlation information in which a first onomatopoeic word, a second onomatopoeic word, and a frequency of selecting the second onomatopoeic word are correlated with each other, a conversion unit converting the first onomatopoeic word into the second onomatopoeic word corresponding to the first onomatopoeic word using the correlation information, and a retrieval and extraction unit extracting the ambient sound corresponding to the second onomatopoeic word from the sound data storage unit and ranking and presenting a plurality of candidates of the extracted ambient sound.Type: ApplicationFiled: March 4, 2014Publication date: September 18, 2014Applicant: HONDA MOTOR CO., LTD.Inventors: Kazuhiro NAKADAI, Keisuke NAKAMURA, Yusuke YAMAMURA, Hiroshi OKUNO
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Patent number: 8831762Abstract: A system for timbral change, capable of changing timbres included in an existing music audio signal to arbitrary timbres. Replaced harmonic peak parameters are created by replacing a plurality of harmonic peaks included in harmonic peak parameters, which are stored in a separated audio signal analyzing and storing section 3 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a first kind, with harmonic peaks included in harmonic peak parameters, which are stored in a replacement parameter storing section 6 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a second kind and corresponding to each tone generated by the musical instrument of the first kind. A synthesized separated audio signal generating section 7 generates a synthesized separated audio signal for each tone using parameters other than the harmonic peak parameters and the replaced harmonic peak parameters.Type: GrantFiled: February 16, 2010Date of Patent: September 9, 2014Assignee: Kyoto UniversityInventors: Takehiro Abe, Naoki Yasuraoka, Katsutoshi Itoyama, Hiroshi Okuno
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Patent number: 8718823Abstract: 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: GrantFiled: October 6, 2010Date of Patent: May 6, 2014Assignee: Honda Motor Co., Ltd.Inventors: Hiroshi Tsujino, Hiroshi Okuno, Takeshi Mizumoto
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Publication number: 20140067385Abstract: A sound processing device includes a separation unit configured to separate at least a music signal and a speech signal from a recorded audio signal, a noise suppression unit, a music feature value estimation unit, a speech recognition unit, a noise-processing confidence calculation unit, a music feature value estimation confidence calculation unit, a speech recognition confidence calculation unit, and a control unit configured to calculate at least one behavioral decision function of a speech behavioral decision function associated with speech and a music behavioral decision function associated with music based on a noise-processing confidence value, a music feature value estimation confidence value, and a speech recognition confidence value and to determine behavior corresponding to the calculated behavioral decision function.Type: ApplicationFiled: September 3, 2013Publication date: March 6, 2014Applicants: HONDA MOTOR CO., LTD., INESC PORTO, UNIVERSIDATE DO PORTOInventors: João Labato OLIVEIRA, Gökhan INCE, Keisuke NAKAMURA, Kazuhiro NAKADAI, Hiroshi OKUNO, Luís Paulo REIS, Fabien GOUYON
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Patent number: 8639511Abstract: A robot may include a driving control unit configured to control a driving of a movable unit that is connected movably to a body unit, a voice generating unit configured to generate a voice, and a voice output unit configured to output the voice, which has been generated by the voice generating unit. The voice generating unit may correct the voice, which is generated, based on a bearing of the movable unit, which is controlled by the driving control unit, to the body unit.Type: GrantFiled: September 14, 2010Date of Patent: January 28, 2014Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Takuma Otsuka, Hiroshi Okuno
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Patent number: 8594846Abstract: A beat tracking apparatus includes: a filtering unit configured to perform a filtering process on an input acoustic signal and to accentuate an onset; a beat interval reliability calculating unit configured to perform a time-frequency pattern matching process employing a mutual correlation function on the acoustic signal of which the onset is accentuated and to calculate a beat interval reliability; and a beat interval estimating unit configured to estimate a beat interval on the basis of the calculated beat interval reliability.Type: GrantFiled: July 15, 2009Date of Patent: November 26, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Yuji Hasegawa, Hiroshi Tsujino, Kazumasa Murata, Ryu Takeda, Hiroshi Okuno
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Patent number: 8577678Abstract: A speech recognition system according to the present invention includes a sound source separating section which separates mixed speeches from multiple sound sources from one another; a mask generating section which generates a soft mask which can take continuous values between 0 and 1 for each frequency spectral component of a separated speech signal using distributions of speech signal and noise against separation reliability of the separated speech signal; and a speech recognizing section which recognizes speeches separated by the sound source separating section using soft masks generated by the mask generating section.Type: GrantFiled: March 10, 2011Date of Patent: November 5, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Toru Takahashi, Hiroshi Okuno
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Patent number: 8548808Abstract: A speech understanding apparatus includes a speech recognition unit which performs speech recognition of an utterance using multiple language models, and outputs multiple speech recognition results obtained by the speech recognition, a language understanding unit which uses multiple language understanding models to perform language understanding for each of the multiple speech recognition results output from the speech recognition unit, and outputs multiple speech understanding results obtained from the language understanding, and an integrating unit which calculates, based on values representing features of the speech understanding results, utterance batch confidences that numerically express accuracy of the speech understanding results for each of the multiple speech understanding results output from the language understanding unit, and selects one of the speech understanding results with a highest utterance batch confidence among the calculated utterance batch confidences.Type: GrantFiled: January 22, 2010Date of Patent: October 1, 2013Assignee: Honda Motor Co., Ltd.Inventors: Mikio Nakano, Masaki Katsumaru, Kotaro Funakoshi, Hiroshi Okuno
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Patent number: 8440901Abstract: A musical score position estimating apparatus includes a sound feature quantity generating unit configured to generate a feature quantity of an input sound signal, and, a score position estimating unit configured to calculate a weight coefficient based on the feature quantity of the sound signal and a feature quantity of musical score information and estimates a musical score position using a virtual musical score position and a virtual tempo corresponding to the weight coefficient.Type: GrantFiled: March 1, 2011Date of Patent: May 14, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Takuma Otsuka, Hiroshi Okuno
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Patent number: 8416957Abstract: 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: GrantFiled: December 4, 2009Date of Patent: April 9, 2013Assignee: Honda Motor Co., Ltd.Inventors: Hiroshi Tsujino, Kazuhiro Nakadai, Hiroshi Okuno, Takeshi Mizumoto, Ikkyu Aihara
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Patent number: 8392185Abstract: The speech recognition system of the present invention includes: a sound source separating section which separates mixed speeches from multiple sound sources; a mask generating section which generates a soft mask which can take continuous values between 0 and 1 for each separated speech according to reliability of separation in separating operation of the sound source separating section; and a speech recognizing section which recognizes speeches separated by the sound source separating section using soft masks generated by the mask generating section.Type: GrantFiled: August 19, 2009Date of Patent: March 5, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Toru Takahashi, Hiroshi Okuno
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Patent number: 8391505Abstract: A reverberation suppressing apparatus separating sound source signals based on input signals output from microphones collecting the plurality of sound source signals, includes a sound signal output unit generating sound signals and outputting the generated sound signals, a sound acquiring unit acquiring the input signals from microphones, a first evaluation function calculation unit calculating a separation matrix, the input signals, and the sound source signals, and calculating a first evaluation function, a reverberation component suppressing unit calculating an optimal separation matrix, and suppressing a reverberation component by separating the sound source signals other than the generated sound signals, and a separation matrix updating unit dividing a step-size function, approximating each segment to a linear function, calculating step sizes based on the approximated linear functions, and repeatedly updating the separation matrix so that the degree of separation of the sound source signals exceeds the pType: GrantFiled: June 1, 2010Date of Patent: March 5, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Hirofumi Nakajima, Hiroshi Okuno, Ryu Takeda
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Publication number: 20130051569Abstract: In accordance with one aspect of the invention, the sound source position determining system comprises a detector (101) for detecting sound data, and a computing unit (103) for computing MUSIC spectrum for each direction and time. The system includes a state transition model that describes state and transition of the state according to existence or absence of sound sources in each direction, and a model parameter estimating unit (105) that determines an observation model describing MUSIC spectrum observed in a state where one or more sound sources exist and in a state where no sound sources exist and estimates posterior distribution of model parameters of the observation model and the state transition model based on temporal data of MUSIC spectrum.Type: ApplicationFiled: August 21, 2012Publication date: February 28, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Kazuhiro NAKADAI, Hiroshi OKUNO, Takuma OTSUKA
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Patent number: 8370277Abstract: A musical piece recommendation system that allows instantaneous registration of a new user and a new musical piece without retraining in a basic training section. A first incremental training section monitors a rating history storage section, and each time a change is made to a rating history or a new user is added, performs updating of or addition of the topic selection probability for the user for which the change is made to the rating history or for the new user such that the likelihood determined by a basic training section is kept maximized. A second incremental training section monitors an acoustic feature storage section, and each time a new musical piece is added to perform addition to acoustic features, adds the musical piece selection probability related to the added musical piece such that the likelihood determined by the basic training section is kept maximized.Type: GrantFiled: July 31, 2008Date of Patent: February 5, 2013Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Masataka Goto, Kazuyoshi Yoshii, Hiroshi Okuno
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Publication number: 20120287303Abstract: A sound separating device includes a first microphone that converts input sound into a first sound signal, a second microphone that converts input sound into a second sound signal and has characteristics of a larger distance attenuation ratio than the first microphone, and a sound signal processing portion that optimizes a separating matrix by independent component analysis based on the first sound signal and the second sound signal that are supplied, and uses the optimized separating matrix so as to separate a third sound signal as a sound signal from a near field sound source and to separate a fourth sound signal as a sound signal from a far field sound source.Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Applicant: Funai Electric Co., Ltd.Inventors: Syuzi Umeda, Ryusuke Horibe, Hiroshi Okuno, Toru Takahashi
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Patent number: 8244522Abstract: A language understanding device includes: a language understanding model storing unit configured to store word transition data including pre-transition states, input words, predefined outputs corresponding to the input words, word weight information, and post-transition states, and concept weighting data including concepts obtained from language understanding results for at least one word, and concept weight information corresponding to the concepts; a finite state transducer processing unit configured to output understanding result candidates including the predefined outputs, to accumulate word weights so as to obtain a cumulative word weight, and to sequentially perform state transition operations; a concept weighting processing unit configured to accumulate concept weights so as to obtain a cumulative concept weight; and an understanding result determination unit configured to determine an understanding result from the understanding result candidates by referring to the cumulative word weight and the cumulType: GrantFiled: May 20, 2008Date of Patent: August 14, 2012Assignee: Honda Motor Co., Ltd.Inventors: Mikio Nakano, Hiroshi Okuno, Kazunori Komatani, Yuichiro Fukubayashi, Kotaro Funakoshi
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Patent number: 8239052Abstract: An audio signal produced by playing a plurality of musical instruments is separated into sound sources according to respective instrument sounds. Each time a separation process is performed, the updated model parameter estimation/storage section 114 estimates parameters respectively contained in updated model parameters such that updated power spectrograms gradually change from a state close to initial power spectrograms to a state close to a plurality of power spectrograms most recently stored in a power spectrogram separation/storage section. Respective sections including the power spectrogram separation/storage section 112 and an updated distribution function computation/storage section 118 repeatedly perform process operations until the updated power spectrograms change from the state close to the initial power spectrograms to the state close to the plurality of power spectrograms most recently stored in the power spectrogram separation/storage section 112.Type: GrantFiled: April 14, 2008Date of Patent: August 7, 2012Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Katsutoshi Itoyama, Hiroshi Okuno, Masataka Goto
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Patent number: 8155331Abstract: A result of a sound source direction measurement based on an output of an REMA (first microphone array) (11) and a result of a sound source position measurement based on an output of an IRMA (second microphone array) (12) are integrated through a particle filter or in space. Thus, the different microphones, i.e., the REMA (11) and the IRMA (12) can cancel mutual defects or ambiguities with each other. Therefore, from views of improvement in accuracy and robustness a performance of sound source localization can be improved.Type: GrantFiled: May 9, 2007Date of Patent: April 10, 2012Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Hiroshi Tsujino, Yuji Hasegawa, Hiroshi Okuno
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Publication number: 20120046771Abstract: A system for timbral change, capable of changing timbres included in an existing music audio signal to arbitrary timbres. Replaced harmonic peak parameters are created by replacing a plurality of harmonic peaks included in harmonic peak parameters, which are stored in a separated audio signal analyzing and storing section 3 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a first kind, with harmonic peaks included in harmonic peak parameters, which are stored in a replacement parameter storing section 6 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a second kind and corresponding to each tone generated by the musical instrument of the first kind. A synthesized separated audio signal generating section 7 generates a synthesized separated audio signal for each tone using parameters other than the harmonic peak parameters and the replaced harmonic peak parameters.Type: ApplicationFiled: February 16, 2010Publication date: February 23, 2012Applicant: KYOTO UNIVERSITYInventors: Takehiro Abe, Naoki Yasuraoka, Katsutoshi Itoyama, Hiroshi Okuno
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Patent number: 8073690Abstract: A voice recognition system (10) for improving the toughness of voice recognition for a voice input for which a deteriorated feature amount cannot be completely identified. The system comprises at least two sound detecting means (16a, 16b) for detecting a sound signal, a sound source localizing unit (21) for determining the direction of a sound source based on the sound signal, a sound source separating unit (23) for separating a sound by the sound source from the sound signal based on the sound source direction, a mask producing unit (25) for producing a mask value according to the reliability of the separation results, a feature extracting unit (27) for extracting the feature amount of the sound signal, and a voice recognizing unit (29) for applying the mask to the feature amount to recognize a voice from the sound signal.Type: GrantFiled: December 2, 2005Date of Patent: December 6, 2011Assignee: Honda Motor Co., Ltd.Inventors: Kazuhiro Nakadai, Hiroshi Tsujino, Hiroshi Okuno, Shunichi Yamamoto