Patents by Inventor Ryotaro Aoki
Ryotaro Aoki 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: 20180220249Abstract: A signal processing device includes a selector configured to select one of a plurality of methods, in accordance with which a signal generation process is performed for generating a transfer signal in which additional information is added to an audio signal; a signal processor configured to execute the signal generation process of adding the additional information to the audio signal in accordance with the method selected by the selector; and a transferrer configured to transfer to a reproduction device the transfer signal generated by the signal processor.Type: ApplicationFiled: March 26, 2018Publication date: August 2, 2018Inventors: Ryotaro AOKI, Atsushi USUI, Masaya KANO, Kotaro NAKABAYASHI, Yuta YUYAMA
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Patent number: 9998844Abstract: A signal processing device includes: a calculating unit performing calculation using signal levels of first and second acoustic signals; a determining unit, based on a result of a comparison between: the signal level of at least one of the first and second acoustic signals before the calculation; and a result of the calculation, determining whether a component of a third acoustic signal to be output from a position between a position from which the first acoustic signal is output and a position from which the second acoustic signal is output is included in the first and second acoustic signals; and a signal generating unit generating the third acoustic signal from the first and second acoustic signals when the determining unit determines that the component of the third acoustic signal is included in the first and second acoustic signals.Type: GrantFiled: March 14, 2017Date of Patent: June 12, 2018Assignee: Yamaha CorporationInventor: Ryotaro Aoki
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Patent number: 9883317Abstract: An audio signal processing apparatus includes an input unit configured to receive input of audio signals of a plurality of channels, an obtaining unit configured to obtain position information of a sound source, a sound field effect sound generating unit configured to generate a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels, and a control unit configured to control the sound field effect to be imparted in the sound field effect sound generating unit, based on the position information.Type: GrantFiled: January 20, 2016Date of Patent: January 30, 2018Assignee: Yamaha CorporationInventors: Yuta Yuyama, Ryotaro Aoki, Masaya Kano
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Publication number: 20170374337Abstract: A memory portion stores automated reproducing setting data that associates content input sources with necessariness/unnecessariness of automated reproduction of content. A control portion, when an operation-display portion or a remote control reception portion accepts selection of a content input source, judges whether or not automated reproduction is necessary on content that is inputted from the currently selected input source, based on the automated reproducing setting data. Also, the control portion starts outputting, at an audio signal output portion and a video signal output portion, a reproducing signal on the content that is inputted from the currently selected input source, when judging that automated reproduction of the content is necessary.Type: ApplicationFiled: September 8, 2017Publication date: December 28, 2017Inventors: Atsushi USUI, Masaya KANO, Ryotaro AOKI, Kohei SEKIGUCHI
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Publication number: 20170272884Abstract: A signal processing device includes: a calculating unit performing calculation using signal levels of first and second acoustic signals; a determining unit, based on a result of a comparison between: the signal level of at least one of the first and second acoustic signals before the calculation; and a result of the calculation, determining whether a component of a third acoustic signal to be output from a position between a position from which the first acoustic signal is output and a position from which the second acoustic signal is output is included in the first and second acoustic signals; and a signal generating unit generating the third acoustic signal from the first and second acoustic signals when the determining unit determines that the component of the third acoustic signal is included in the first and second acoustic signals.Type: ApplicationFiled: March 14, 2017Publication date: September 21, 2017Inventor: Ryotaro AOKI
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Patent number: 9706328Abstract: A sound apparatus includes: an acceptance unit that accepts an input of an input audio signal from outside; a communication unit that accepts from a terminal apparatus first direction information indicating a first direction, the first direction being a direction in which a virtual sound source is arranged; a position information generation unit that generates virtual sound source position information based on listening position information, the first direction information and boundary information, the listening position information indicating a listening position, the boundary information indicating a boundary of a space where the virtual sound source is arranged, the virtual sound source position information indicating a position of the virtual sound source on the boundary; a signal generation unit that imparts, based on loudspeaker position information, the listening position information and the virtual sound source position information, a sound effect to the input audio signal such that a sound is heard aType: GrantFiled: May 27, 2014Date of Patent: July 11, 2017Assignee: Yamaha CorporationInventors: Akihiko Suyama, Ryotaro Aoki
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Publication number: 20170097805Abstract: An audio signal processing device includes an audio signal processing unit which performs signal processing on an audio signal, a sound volume setting receiving unit which receives a sound volume set value, and a sound volume measuring unit which measures a sound volume at a listening position. The audio signal processing unit performs a loudness correction which increases a level of the audio signal in a prescribed frequency range as the sound volume set value decreases. The sound volume measuring unit measures sound volumes corresponding to plural respective sound volume set values at the listening position. The audio signal processing unit sets a level adjustment amount to be used in performing the loudness correction based on the sound volume set value received by the sound volume setting receiving unit and the measurement sound volumes of the sound volume measuring unit.Type: ApplicationFiled: March 17, 2015Publication date: April 6, 2017Inventors: Ryotaro AOKI, Tomoko NINOMIYA
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Patent number: 9473869Abstract: An audio signal processing device includes: an input section to which an audio signal is input; a bias processing section configured to add a bias signal to the audio signal; a calculation section configured to perform a power calculation on the audio signal to which the bias signal has been added by the bias processing section; and an adding unit configured to add the audio signal on which the power calculation is performed by the calculation section to the audio signal having been input to the input section.Type: GrantFiled: August 14, 2014Date of Patent: October 18, 2016Assignee: Yamaha CorporationInventors: Ryotaro Aoki, Hideyuki Tokuhisa
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Patent number: 9431986Abstract: A sound processing apparatus includes an information acquisition unit which acquires control information including at least one of mode information for designating a reproduction mode of the sound processing apparatus and attribute information for designating an attribute of an audio content represented by a sound signal, a frequency band expansion unit which performs frequency band expansion processing for adding an expanded component generated from the sound signal to the sound signal, and a control unit which changes parameters to be applied to the frequency band expansion processing in accordance with the control information acquired by the information acquisition unit.Type: GrantFiled: December 20, 2012Date of Patent: August 30, 2016Assignee: Yamaha CorporationInventor: Ryotaro Aoki
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Publication number: 20160212563Abstract: An audio signal processing apparatus includes an input unit configured to receive input of audio signals of a plurality of channels, an obtaining unit configured to obtain position information of a sound source, a sound field effect sound generating unit configured to generate a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels, and a control unit configured to control the sound field effect to be imparted in the sound field effect sound generating unit, based on the position information.Type: ApplicationFiled: January 20, 2016Publication date: July 21, 2016Inventors: Yuta YUYAMA, Ryotaro AOKI, Masaya KANO
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Patent number: 9356572Abstract: A sound processing apparatus processes a first sound signal and a second sound signal. The sound processing apparatus includes a first adjustor which adjusts a volume of the first sound signal, a second adjustor which adjusts a volume of the second sound signal, and a control unit which causes the first adjustor and the second adjustor to adjust the first sound signal gradually changed over a first gradually-change time and the second sound signal gradually changed over a second gradually-change time, wherein the second gradually-change time is shorter than and included in the first gradually-change time.Type: GrantFiled: December 19, 2012Date of Patent: May 31, 2016Assignee: Yamaha CorporationInventors: Masaki Katayama, Ryotaro Aoki
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Publication number: 20160127849Abstract: A sound apparatus includes: an acceptance unit that accepts an input of an input audio signal from outside; a communication unit that accepts from a terminal apparatus first direction information indicating a first direction, the first direction being a direction in which a virtual sound source is arranged; a position information generation unit that generates virtual sound source position information based on listening position information, the first direction information and boundary information, the listening position information indicating a listening position, the boundary information indicating a boundary of a space where the virtual sound source is arranged, the virtual sound source position information indicating a position of the virtual sound source on the boundary; a signal generation unit that imparts, based on loudspeaker position information, the listening position information and the virtual sound source position information, a sound effect to the input audio signal such that a sound is heard aType: ApplicationFiled: May 27, 2014Publication date: May 5, 2016Inventors: Akihiko SUYAMA, Ryotaro AOKI
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Patent number: 9318126Abstract: The voice clarification apparatus includes a plurality of band-pass filters that respectively extract a plurality of band components, which are included in a voice band, from an input audio signal; a gain determination unit that determines a gain according to the level of a signal of a band component which is extracted by at least one band-pass filter of the plurality of band-pass filters; a level adjustment unit that adjusts the levels of signals of the plurality of band components which are extracted by the plurality of band-pass filters using the gain; and a first addition unit that adds a signal which is based on the audio signal to a signal in which the gain is adjusted by the level adjustment unit, and outputs a signal obtained through the addition.Type: GrantFiled: December 21, 2012Date of Patent: April 19, 2016Assignee: YAMAHA CORPORATIONInventors: Hiroomi Shidoji, Ryotaro Aoki
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Publication number: 20160066112Abstract: An audio device includes: an acquisition unit that acquires first information indicating an arrangement direction of a first loudspeaker, the first information being measured by a terminal device in a state with the terminal device oriented toward the first loudspeaker; and a calculation unit that calculates a position of the first loudspeaker, at least based on a distance from a reference position to the first loudspeaker, and the first information.Type: ApplicationFiled: April 14, 2014Publication date: March 3, 2016Inventors: Akihiko SUYAMA, Ryotaro AOKI
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Publication number: 20150264502Abstract: An audio signal processing device includes a calculator for generating a plurality of audio signals to be given respectively to a plurality of loudspeakers based on an audio signal corresponding to a virtual sound source having position information. The calculator calculates, with respect to each loudspeaker, a distance between each of the plurality of loudspeakers and the virtual sound source on the basis of position information indicating a position of the virtual sound source and loudspeaker position information indicating positions of the plurality of loudspeakers, and calculates an audio signal corresponding to the virtual sound source to be supplied to each of the plurality of loudspeakers on the basis of the distance.Type: ApplicationFiled: November 15, 2013Publication date: September 17, 2015Inventors: Ryotaro Aoki, Akihiko Suyama, Kotaro Nakabayashi
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Publication number: 20150049881Abstract: An audio signal processing device includes: an input section to which an audio signal is input; a bias processing section configured to add a bias signal to the audio signal; a calculation section configured to perform a power calculation on the audio signal to which the bias signal has been added by the bias processing section; and an adding unit configured to add the audio signal on which the power calculation is performed by the calculation section to the audio signal having been input to the input section.Type: ApplicationFiled: August 14, 2014Publication date: February 19, 2015Inventors: Ryotaro AOKI, Hideyuki TOKUHISA
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Patent number: 8942537Abstract: A content reproduction apparatus that adopts a content processing method includes a video processor, a video analyzer, and an audio processor for processing audio data and video data input thereto. The video analyzer analyzes video characteristics of video data such as resolutions, compressive distortions, and real frame rates. The video processor processes video data in accordance with video processing, which is determined based on analyzed video characteristics of video data. The audio processor processes audio data in accordance with audio processing, such as dynamic range compression and/or frequency component extension/enhancement, which is determined based on analyzed video characteristics of video data. Thus, it is possible to reproduce sound in an articulate manner depending on the video quality, which is either professional-level video shooting or nonprofessional-level video shooting.Type: GrantFiled: October 2, 2013Date of Patent: January 27, 2015Assignee: Yamaha CorporationInventor: Ryotaro Aoki
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Patent number: 8868414Abstract: An audio signal processing device is designed to enhance the low-pitch register of an audio signal by generating harmonics causing a missing fundamental effect with a light load of processing but without damaging an audio waveform. The audio signal processing device includes a filtering part (e.g. a band-pass filter configured of a high-pass filter and a low-pass filter) that extracts a low-pitch signal from an audio signal input thereto; a dynamic range compression part that compresses a dynamic range of the low-pitch signal by use of a time-variant gain relative to a peak of the low-pitch signal, which is detected via a peak hold operation using a predetermined time constant, thus producing a compressed signal; and an adder that adds the compressed signal to the audio signal so as to produce a processed audio signal including harmonics.Type: GrantFiled: January 18, 2012Date of Patent: October 21, 2014Assignee: Yamaha CorporationInventors: Ryotaro Aoki, Hideyuki Tokuhisa
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Patent number: 8712210Abstract: A content reproduction apparatus that adopts a content processing method includes a video processor, a video analyzer, and an audio processor for processing audio data and video data input thereto. The video analyzer analyzes video characteristics of video data such as resolutions, compressive distortions, and real frame rates. The video processor processes video data in accordance with video processing, which is determined based on analyzed video characteristics of video data. The audio processor processes audio data in accordance with audio processing, such as dynamic range compression and/or frequency component extension/enhancement, which is determined based on analyzed video characteristics of video data. Thus, it is possible to reproduce sound in an articulate manner depending on the video quality, which is either professional-level video shooting or nonprofessional-level video shooting.Type: GrantFiled: December 1, 2011Date of Patent: April 29, 2014Assignee: Yamaha CorporationInventor: Ryotaro Aoki
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Publication number: 20140029677Abstract: A content reproduction apparatus that adopts a content processing method includes a video processor, a video analyzer, and an audio processor for processing audio data and video data input thereto. The video analyzer analyzes video characteristics of video data such as resolutions, compressive distortions, and real frame rates. The video processor processes video data in accordance with video processing, which is determined based on analyzed video characteristics of video data. The audio processor processes audio data in accordance with audio processing, such as dynamic range compression and/or frequency component extension/enhancement, which is determined based on analyzed video characteristics of video data. Thus, it is possible to reproduce sound in an articulate manner depending on the video quality, which is either professional-level video shooting or nonprofessional-level video shooting.Type: ApplicationFiled: October 2, 2013Publication date: January 30, 2014Applicant: Yamaha CorporationInventor: Ryotaro AOKI