Patents by Inventor Hironari Kawai
Hironari Kawai 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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Patent number: 11933684Abstract: A tactile and proximity sensor includes a light source, a light receiving section, and a cover. The light source emits light. The light receiving section receives light and generates a signal providing a result of the received light. The cover includes an elastic body that deforms under external force and that covers the light source and the light receiving section. The cover includes a reflective section that reflects light between the light source and the light receiving section and a transmission section that allows light to pass through in a first direction from the light source and that allows light to pass through in a second direction from the light receiving section.Type: GrantFiled: November 19, 2020Date of Patent: March 19, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takatoshi Kato, Hiroshi Watanabe, Kohei Sugahara, Hironari Yamamoto, Hiraku Kawai
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Patent number: 11399233Abstract: A signal processing device includes a switching receptor, a storage, and a signal processor. The switching receptor receives switching of a speaker serving as a supply destination of a signal. The storage stores an optimal setting, which is obtained by measuring characteristics of the speaker selected by the switching, in association with the switching of the speaker. The signal processor reads out the optimal setting, which is associated with the switching received by the switching receptor, from the storage, and uses the optimal setting to process the signal to be supplied to the speaker.Type: GrantFiled: September 29, 2020Date of Patent: July 26, 2022Assignee: YAMAHA CORPORATIONInventor: Hironari Kawai
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Patent number: 11297432Abstract: An audio signal processing method of an audio signal distribution device including a receiver, a determiner, and a transmitter. The receiver receives information relating to capabilities of a distribution destination device to which an audio signal is distributed. The determiner, based on the capabilities of the distribution destination device in received information, determines a role of processing of the audio signal of each device including an own device and the distribution destination device and generates processing information according to the processing of the audio signal. The transmitter distributes the processing information and the audio signal to the distribution destination device.Type: GrantFiled: April 7, 2021Date of Patent: April 5, 2022Assignee: Yamaha CorporationInventor: Hironari Kawai
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Publication number: 20210227325Abstract: An audio signal processing method of an audio signal distribution device including a receiver, a determiner, and a transmitter. The receiver receives information relating to capabilities of a distribution destination device to which an audio signal is distributed. The determiner, based on the capabilities of the distribution destination device in received information, determines a role of processing of the audio signal of each device including an own device and the distribution destination device and generates processing information according to the processing of the audio signal. The transmitter distributes the processing information and the audio signal to the distribution destination device.Type: ApplicationFiled: April 7, 2021Publication date: July 22, 2021Inventor: Hironari KAWAI
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Patent number: 11006217Abstract: An audio signal distribution device includes a receiver, a determiner, and a transmitter. The receiver receives information relating to capabilities of a distribution destination device to which an audio signal is distributed. The determiner, based on the capabilities of the distribution destination device in received information, determines a role of processing of the audio signal of each device including an own device and the distribution destination device and generates processing information according to the processing of the audio signal. The transmitter distributes the processing information and the audio signal to the distribution destination device.Type: GrantFiled: August 1, 2019Date of Patent: May 11, 2021Assignee: Yamaha CorporationInventor: Hironari Kawai
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Publication number: 20210014618Abstract: A signal processing device includes a switching receptor, a storage, and a signal processor. The switching receptor receives switching of a speaker serving as a supply destination of a signal. The storage stores an optimal setting, which is obtained by measuring characteristics of the speaker selected by the switching, in association with the switching of the speaker. The signal processor reads out the optimal setting, which is associated with the switching received by the switching receptor, from the storage, and uses the optimal setting to process the signal to be supplied to the speaker.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Inventor: Hironari KAWAI
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Patent number: 10880651Abstract: A signal processing device includes a switching receptor, a storage, and a signal processor. The switching receptor receives switching of a speaker serving as a supply destination of a signal. The storage stores an optimal setting, which is obtained by measuring characteristics of the speaker selected by the switching, in association with the switching of the speaker. The signal processor reads out the optimal setting, which is associated with the switching received by the switching receptor, from the storage, and uses the optimal setting to process the signal to be supplied to the speaker.Type: GrantFiled: September 18, 2019Date of Patent: December 29, 2020Assignee: YAMAHA CORPORATIONInventor: Hironari Kawai
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Patent number: 10827270Abstract: A signal processing device includes a switching receptor, a storage, and a signal processor. The switching receptor receives switching of a speaker serving as a supply destination of a signal. The storage stores an optimal setting, which is obtained by measuring characteristics of the speaker selected by the switching, in association with the switching of the speaker. The signal processor reads out the optimal setting, which is associated with the switching received by the switching receptor, from the storage, and uses the optimal setting to process the signal to be supplied to the speaker.Type: GrantFiled: September 18, 2019Date of Patent: November 3, 2020Assignee: YAMAHA CORPORATIONInventor: Hironari Kawai
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Publication number: 20200042283Abstract: An information processing device includes a display processor and a communication processor. The display processor simultaneously displays a switching receptor and a selection receptor on the same screen. The switching receptor receives switching of a speaker to be a supply destination of a signal from a signal processing device. The selection receptor receives a selection about whether or not the characteristics of the speaker to be selected by the switching received by the switching receptor are optimized. The communication processor transmits instructions for various settings received by the switching receptor and the selection receptor to the signal processing device.Type: ApplicationFiled: October 11, 2019Publication date: February 6, 2020Inventor: Hironari KAWAI
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Publication number: 20200045420Abstract: An audio signal distribution device includes a receiver, a determiner, and a transmitter. The receiver receives information relating to capabilities of a distribution destination device to which an audio signal is distributed. The determiner, based on the capabilities of the distribution destination device in received information, determines a role of processing of the audio signal of each device including an own device and the distribution destination device and generates processing information according to the processing of the audio signal. The transmitter distributes the processing information and the audio signal to the distribution destination device.Type: ApplicationFiled: August 1, 2019Publication date: February 6, 2020Inventor: Hironari KAWAI
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Publication number: 20200015013Abstract: A signal processing device includes a switching receptor, a storage, and a signal processor. The switching receptor receives switching of a speaker serving as a supply destination of a signal. The storage stores an optimal setting, which is obtained by measuring characteristics of the speaker selected by the switching, in association with the switching of the speaker. The signal processor reads out the optimal setting, which is associated with the switching received by the switching receptor, from the storage, and uses the optimal setting to process the signal to be supplied to the speaker.Type: ApplicationFiled: September 18, 2019Publication date: January 9, 2020Inventor: Hironari KAWAI
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Patent number: 8565451Abstract: Under the control of a controller, a DSP supplies audio signals received from a switch circuit to a main zone DAC, subjects the audio signals received from the aforementioned switch circuit (i.e., audio signals for main zone use) to down-mixing processing so that the number of channels matches the number of output terminals assigned to each zone, and respectively supplies the audio signals subjected to down-mixing processing to the respective switch circuits of each zone. Each of the aforementioned switch circuits supplies the audio signals received from the subzone DAC to the respective volume adjustor of each zone.Type: GrantFiled: August 6, 2008Date of Patent: October 22, 2013Assignee: Yamaha CorporationInventors: Masaya Kano, Hironari Kawai, Tatsuya Takahashi, Daigo Sugiura, Hideyuki Suzuki, Kunihiro Kumagai
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Patent number: 8130982Abstract: An amplification system of the invention can decrease power consumption in a power amplification section if the power amplification section need not be used. The power consumption in the power amplification section can be decreased by shutting off power feed into a voltage amplification stage by a power control section, and the power feed state into a power amplification stage from a power supply section is not changed. Thus, power feed into the voltage amplification stage of the circuit wherein a large current does not flow needs only to be controlled using limiter means also used for a different application, so that the power consumption of the power amplification section can be decreased without the need for enlarging the circuit scale, with saved space, and simply.Type: GrantFiled: August 8, 2008Date of Patent: March 6, 2012Assignee: Yamaha CorporationInventors: Masaya Kano, Hironari Kawai, Masao Noro
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Publication number: 20090060227Abstract: Under the control of a controller, a DSP supplies audio signals received from a switch circuit to a main zone DAC, subjects the audio signals received from the aforementioned switch circuit (i.e., audio signals for main zone use) to down-mixing processing so that the number of channels matches the number of output terminals assigned to each zone, and respectively supplies the audio signals subjected to down-mixing processing to the respective switch circuits of each zone. Each of the aforementioned switch circuits supplies the audio signals received from the subzone DAC to the respective volume adjustor of each zone.Type: ApplicationFiled: August 6, 2008Publication date: March 5, 2009Applicant: Yamaha CorporationInventors: Masaya Kanoh, Hironari Kawai, Tatsuya Takahashi, Daigo Sugiura, Hideyuki Suzuki, Kunihiro Kumagai
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Publication number: 20090041268Abstract: An amplification system of the invention can decrease power consumption in a power amplification section if the power amplification section need not be used. The power consumption in the power amplification section can be decreased by shutting off power feed into a voltage amplification stage by a power control section, and the power feed state into a power amplification stage from a power supply section is not changed. Thus, power feed into the voltage amplification stage of the circuit wherein a large current does not flow needs only to be controlled using limiter means also used for a different application, so that the power consumption of the power amplification section can be decreased without the need for enlarging the circuit scale, with saved space, and simply.Type: ApplicationFiled: August 8, 2008Publication date: February 12, 2009Applicant: YAMAHA CORPORATIONInventors: Masaya KANO, Hironari Kawai, Masao Noro
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Publication number: 20080225166Abstract: An audio-video apparatus, which is connectable to a plurality of external devices (e.g., DVD players, TV monitors, and game devices) so as to process input signals thereof and to thereby control them individually, stores a plurality of packaged information regarding setups and operations, i.e., a plurality of scene templates, which are assigned to a plurality of scene buttons in advance. When the user presses a desired scene button, the corresponding scene template is called and read out so as to automatically realize prescribed setup and operation in connection with a desired external device. The audio-video apparatus allows the user to edit and customize scene templates assigned to the scene buttons in association with messages indicating details of scene templates, which are visually displayed on the screen.Type: ApplicationFiled: February 5, 2008Publication date: September 18, 2008Applicant: Yamaha CorporationInventors: Hironari Kawai, Yoshiaki Tsutsui, Masaya Kanoh, Tatsuya Takahashi
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Patent number: 7006645Abstract: A first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel and a second selector switch couples output of the power amplifier of the m channel to a speaker terminal for the selected second zone whereby an audio signal can be supplied to either one of a plurality of second zones. In one aspect of the invention, a first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel determined by a control section and a second selector switch couples output of the m channel determined by the control section to a speaker terminal for the selected second zone whereby an audio signal can be supplied to one or more zones among plural second zones.Type: GrantFiled: July 22, 2004Date of Patent: February 28, 2006Assignee: Yamaha CorporationInventors: Shinichi Fujita, Hironari Kawai
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Publication number: 20040264717Abstract: A first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel and a second selector switch couples output of the power amplifier of the m channel to a speaker terminal for the selected second zone whereby an audio signal can be supplied to either one of a plurality of second zones. In one aspect of the invention, a first selector switch outputs a second audio signal of m channel corresponding to a selected second zone to a power amplifier of the m channel determined by a control section and a second selector switch couples output of the m channel determined by the control section to a speaker terminal for the selected second zone whereby an audio signal can be supplied to one or more zones among plural second zones.Type: ApplicationFiled: July 22, 2004Publication date: December 30, 2004Applicant: Yamaha CorporationInventors: Shinichi Fujita, Hironari Kawai
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Publication number: 20040062402Abstract: In a first mode where no audio reproduction is to be executed in a second zone, each selector switch shifts to a Z1 contact. In a second mode where audio reproduction is to be executed in the second zone, each selector switch shifts to a Z2 contact. In the second mode, a DSP executes sound field correction on main and rear signals such that sound fields in the first zone have desired characteristics. Setting section can select either a first speaker mode where speakers connected to first output terminals and speakers connected to second output terminals are both positioned in the first zone, or a second speaker mode where the speakers connected to the first output terminals are positioned in the first zone and the speakers connected to the second output terminals are positioned in the second zone. When the output to the first output terminals is off while the output to the second output terminals is on in the second speaker mode, the DSP stops outputting the surround signals.Type: ApplicationFiled: July 17, 2003Publication date: April 1, 2004Applicant: Yamaha CorporationInventors: Shinichi Fujita, Hironari Kawai