Patents by Inventor Shigetoshi Hayashi
Shigetoshi Hayashi 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: 20200374631Abstract: To favorably reduce crosstalk components output from respective speakers that reproduce left and right ear signals. Directivity is given to a left ear signal and a right ear signal and the left ear signal and the right ear signal are reproduced by using at least two respective speakers arranged back-to-back to reduce crosstalk components. For example, the speaker may be a speaker installed in a headrest or a seat provided with the headrest. For example, the directivity given to the left ear signal and the directivity given to the right ear signal may be bidirectional directivity or unidirectional directivity.Type: ApplicationFiled: January 10, 2019Publication date: November 26, 2020Applicant: Sony CorporationInventors: Shigetoshi Hayashi, Ryutaro Watanabe, Tetsunori Itabashi, Toru Nakagawa, Takuma Domae
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Publication number: 20200367005Abstract: A sound image localization processing section 41 performs sound signal processing for localizing a sound image of reproduction sound on a sound signal supplied from a sound source section 20. A control section 46 controls the sound signal processing performed by the sound image localization processing section, on the basis of posture tilt information that is generated by a posture tilt information generation section 30 and that indicates tilt of listening posture of a listener, and adjusts a localization position of the sound image in accordance with the tilt of the listening posture. For example, the localization position of the sound image is adjusted in an upward direction in accordance with tilt of the listening posture of the listener in a front direction, and the localization position of the sound image is adjusted in a downward direction in accordance with tilt of the listening posture in a rear direction.Type: ApplicationFiled: October 25, 2018Publication date: November 19, 2020Applicant: Sony CorporationInventors: Tetsunori ITABASHI, Shigetoshi HAYASHI, Toru NAKAGAWA, Ryutaro WATANABE
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Publication number: 20200357977Abstract: A piezoelectric actuator that includes a multilayer body, a low-potential outer electrode, and a high-potential outer electrode. The multilayer body includes multiple alternately stacked piezoelectric ceramic layers and planar electrodes. The planar electrodes include low-potential planar electrodes electrically connected to the low-potential outer electrode and high-potential planar electrodes electrically connected to the high-potential outer electrode. The planar electrode positioned most outwardly on the side of a first main surface of the multilayer body is a low-potential planar electrode. The inner surface of this low-potential planar electrode contacts the ? side of polarization in an active region, and the outer surface of this low-potential planar electrode is exposed on an outside of the multilayer body. On the side of a second main surface of the multilayer body, a high-potential planar electrode is not exposed on the outside of the multilayer body.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Inventors: Yoshiyuki Yamakawa, Seishiro Goto, Shinichiro Kawada, Shigetoshi Hayashi, Akio Fujita, Yusuke Nakamura
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Patent number: 10798516Abstract: The present disclosure relates to an information processing apparatus and method capable of performing compensation to achieve a standard sound regardless of a recording environment. The microphone picks up sound from a sound source and inputs the sound to a recording apparatus as an analog audio signal. The recording apparatus is an apparatus that performs binaural recording and generates an audio file of a sound obtained by binaural recording. The recording apparatus adds metadata related to a recording environment of binaural content to the audio file generated by binaural recording and transmits the file with the metadata to a reproducing apparatus. The present disclosure is applicable to a recording/reproducing system that performs binaural recording and reproduction of the sound, for example.Type: GrantFiled: April 27, 2017Date of Patent: October 6, 2020Assignee: SONY CORPORATIONInventors: Shigetoshi Hayashi, Kohei Asada, Yushi Yamabe
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Publication number: 20200286461Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.Type: ApplicationFiled: May 21, 2020Publication date: September 10, 2020Applicant: Sony CorporationInventors: Tetsunori Itabashi, Kohei Asada, Shigetoshi Hayashi, Kenichi Makino, Kazuma Yoshii
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Patent number: 10748519Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.Type: GrantFiled: July 26, 2017Date of Patent: August 18, 2020Assignee: Sony CorporationInventors: Tetsunori Itabashi, Kohei Asada, Shigetoshi Hayashi, Kenichi Makino, Kazuma Yoshii
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Patent number: 10733971Abstract: [Object] To provide a sound processing device capable of effectively reducing ambient noise at low cost. [Solution] Provided is a sound processing device including: a first sound collector configured to collect a first noise signal from a noise source of noise leaking into a casing mounted to a user's ear; a first signal processing unit configured to form a first noise reduction signal used to reduce noise at a cancellation point on the basis of the first noise signal; a second signal processing unit configured to form a second noise reduction signal used to reduce noise at a cancellation point with respect to a first pseudo noise signal; an adder configured to add the first noise reduction signal and the second noise reduction signal; and a sound emitter configured to emit an output of the adder into the casing as sound.Type: GrantFiled: April 18, 2017Date of Patent: August 4, 2020Assignee: Sony CorporationInventors: Shigetoshi Hayashi, Kohei Asada, Tetsunori Itabashi, Kazuma Yoshii, Mitsuhiro Suzuki, Shinpei Tsuchiya, Yushi Yamabe
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Publication number: 20200245057Abstract: [Problem] To propose a mechanism capable of performing a noise cancellation process in an ear hole opening type audio processing device. [Solution] An audio processing device including: an audio information acquisition unit that acquires audio information; a holding unit that abuts on a cavum concha or an inner wall of an ear canal and holds the audio information acquisition unit in a space closer to an eardrum side than a tragus, in a state of being worn by a user; an opening portion that opens an ear hole to an outside; and a signal processing unit that generates a noise cancellation signal based on the audio information acquired by the audio information acquisition unit.Type: ApplicationFiled: June 22, 2018Publication date: July 30, 2020Inventors: GO IGARASHI, SHIGETOSHI HAYASHI, NAOKI SHINMEN, KOHEI ASADA
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Publication number: 20200202839Abstract: [Problem] To provide a mechanism that enables cooperation of a plurality of audio processing devices. [Solution] An earphone device including a wireless communication unit that wirelessly communicates with a headphone device which is worn to overlap an outer side of the earphone device worn by a user.Type: ApplicationFiled: June 22, 2018Publication date: June 25, 2020Inventors: KOHEI ASADA, GO IGARASHI, NAOKI SHINMEN, SHIGETOSHI HAYASHI
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Publication number: 20200202837Abstract: [Object] There is proposed a mechanism that allows for a higher noise cancellation effect by operating a plurality of units in coordination. [Solution] An information processor including a signal processing section that: acquires a first signal to be detected by an acoustic input section of a first unit including the acoustic input section disposed within a predetermined distance from one ear hole of a user in a state of being worn by the user; acquires a second signal, which indicates a noise generated from a noise source, to be acquired by a second unit; and generates a noise cancellation signal directed to the noise on the basis of the first signal and the second signal.Type: ApplicationFiled: March 26, 2018Publication date: June 25, 2020Inventors: KENICHI MAKINO, KOHEI ASADA, TETSUNORI ITABASHI, SHIGETOSHI HAYASHI, GO IGARASHI
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Patent number: 10667034Abstract: [Object] To allow a listener to listen to ambient sounds of the external environment in an appropriate manner while wearing a head mounted acoustic device.Type: GrantFiled: March 15, 2019Date of Patent: May 26, 2020Assignee: Sony CorporationInventors: Kohei Asada, Yushi Yamabe, Shigetoshi Hayashi
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Patent number: 10605678Abstract: Disclosed is a piezoelectric film sensor including an insulating substrate having a first electrode formed on at least one main surface thereof, a piezoelectric film which has a first main surface and a second main surface and in which the first main surface is provided on the first electrode side, and a conductive thin film member provided on the second main surface side. The piezoelectric film sensor is characterized in that the first main surface is disposed on a pressing surface side.Type: GrantFiled: October 25, 2017Date of Patent: March 31, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takashi Kihara, Yoshihiro Yamaguchi, Jun Endo, Yutaka Ishiura, Shigetoshi Hayashi, Fumiya Isono
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Publication number: 20200043459Abstract: [Object] To provide a structure that can effectively reduce a noise containing a component varying in characteristic. [Solution] A signal processing apparatus including: a signal processing section configured to generate a first noise reduction signal using an adaptive filter on the basis of a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus, and generate a second noise reduction signal using a fixed filter on the basis of a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus.Type: ApplicationFiled: July 26, 2017Publication date: February 6, 2020Applicant: Sony CorporationInventors: Tetsunori Itabashi, Kohei Asada, Shigetoshi Hayashi, Kenichi Makino, Kazuma Yoshii
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Patent number: 10440475Abstract: [Object] To provide a signal processing device, a signal processing method, and a program. [Solution] The signal processing device includes: a first arithmetic processing unit that performs first suppressing processing for suppressing a first audio signal based on a first microphone on a basis of a second audio signal based on a second microphone; and a second arithmetic processing unit that performs second suppressing processing for suppressing the second audio signal on a basis of the first audio signal.Type: GrantFiled: August 22, 2016Date of Patent: October 8, 2019Assignee: Sony CorporationInventors: Kenichi Makino, Kohei Asada, Keiichi Osako, Shigetoshi Hayashi
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Publication number: 20190266991Abstract: [Object] To provide a sound processing device capable of effectively reducing ambient noise at low cost. [Solution] Provided is a sound processing device including: a first sound collector configured to collect a first noise signal from a noise source of noise leaking into a casing mounted to a user's ear; a first signal processing unit configured to form a first noise reduction signal used to reduce noise at a cancellation point on the basis of the first noise signal; a second signal processing unit configured to form a second noise reduction signal used to reduce noise at a cancellation point with respect to a first pseudo noise signal; an adder configured to add the first noise reduction signal and the second noise reduction signal; and a sound emitter configured to emit an output of the adder into the casing as sound.Type: ApplicationFiled: April 18, 2017Publication date: August 29, 2019Applicant: Sony CorporationInventors: Shigetoshi Hayashi, Kohei Asada, Tetsunori Itabashi, Kazuma Yoshii, Mitsuhiro Suzuki, Shinpei Tsuchiya, Yushi Yamabe
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Publication number: 20190251948Abstract: [Object] To reduce the influence of noise in a more preferred aspect even in an environment in which a user hears an acoustic sound output to an open space. [Solution] A signal processing device includes: a generation unit configured to generate a first noise reduction signal for driving a first acoustic device which outputs a first acoustic sound for reducing noise; and an acquisition unit configured to acquire a sound collection result of an acoustic sound collected by a predetermined sound collection unit, the acoustic sound including the first acoustic sound propagating from the first acoustic device via a first propagation path and a second acoustic sound propagating from a second acoustic device different from the first acoustic device via a second propagation path. The generation unit generates the first noise reduction signal on a basis of the sound collection result and a cancellation signal based on a second noise reduction signal for driving the second acoustic device.Type: ApplicationFiled: January 24, 2017Publication date: August 15, 2019Applicant: Sony CorporationInventors: Shigetoshi Hayashi, Kohei Asada, Tetsunori Itabashi, Kenichi Makino
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Publication number: 20190215598Abstract: [Object] To allow a listener to listen to ambient sounds of the external environment in an appropriate manner while wearing a head mounted acoustic device.Type: ApplicationFiled: March 15, 2019Publication date: July 11, 2019Applicant: Sony CorporationInventors: Kohei Asada, Yushi Yamabe, Shigetoshi Hayashi
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Patent number: 10349163Abstract: [Object] To allow a listener to listen to ambient sounds of the external environment in an appropriate manner while wearing a head mounted acoustic device.Type: GrantFiled: March 2, 2016Date of Patent: July 9, 2019Assignee: Sony CorporationInventors: Kohei Asada, Yushi Yamabe, Shigetoshi Hayashi
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Publication number: 20190149940Abstract: The present disclosure relates to an information processing apparatus and method capable of performing compensation to achieve a standard sound regardless of a recording environment. The microphone picks up sound from a sound source and inputs the sound to a recording apparatus as an analog audio signal. The recording apparatus is an apparatus that performs binaural recording and generates an audio file of a sound obtained by binaural recording. The recording apparatus adds metadata related to a recording environment of binaural content to the audio file generated by binaural recording and transmits the file with the metadata to a reproducing apparatus. The present disclosure is applicable to a recording/reproducing system that performs binaural recording and reproduction of the sound, for example.Type: ApplicationFiled: April 27, 2014Publication date: May 16, 2019Applicant: SONY CORPORATIONInventors: SHIGETOSHI HAYASHI, KOHEI ASADA, YUSHI YAMABE
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Patent number: 10255899Abstract: The present disclosure relates to a noise reduction device and a noise reduction method capable of reducing noise in a more stable and effective manner. Signal processing is performed to generate a reference signal representing a waveform of noise. Moreover, signal processing is performed for an error signal representing a waveform of an error measured by a microphone in accordance with an amplitude-frequency characteristic. Then, a filter coefficient with which the error signal becomes zero is calculated under adaptive algorithm with reference to the reference signal. The reference signal is filtered by using the filter coefficient to obtain a control signal. The control signal is supplied to the corresponding one of the predetermined number of output units. The present technology is applicable to a noise cancelling system equipped in a closed space such as an interior of a vehicle, for example.Type: GrantFiled: September 4, 2015Date of Patent: April 9, 2019Assignee: SONY CORPORATIONInventors: Tetsunori Itabashi, Kohei Asada, Keiichi Osako, Shigetoshi Hayashi