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1.发明授权公开(公告)号：US09596545B2
公开(公告)日：2017-03-14
申请号：US15023681
申请日：2015-03-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
Abstract: A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm includes an inner peripheral end portion having an end face to which a light-emitting element is coupled, a light-guide portion, a reflective surface, and an outer peripheral end portion coupled to the frame. The first end of the voice coil bobbin is coupled to the inner peripheral end portion of the diaphragm, and the second end thereof is inserted into the magnetic gap. A voice coil is wound on the second end of the voice coil bobbin.
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Patent Agency Ranking
公开(公告)号：US09820047B2
公开(公告)日：2017-11-14
申请号：US15246933
申请日：2016-08-25
Inventor： Akihisa Kawamura , Toshiyuki Matsumura , Isao Kakuhari , Shuji Saiki , Satoshi Takayama , Kazuki Honda , Takafumi Yuasa
CPC classification number: H04R3/04 , H03G5/165 , H04R1/08 , H04R3/12 , H04R29/001 , H04R29/002
Abstract: A method is provided for causing a processor included in a speaker system to execute operations. The operations include acquiring, using a measurement microphone, reflected sound information regarding an effect of sounds that are played back by a plurality of speakers having predetermined directivity and that are reflected off an object, where the plurality of speakers are included in the speaker system. The operations also include calculating correction coefficients used to correct acoustic characteristics of the plurality of speakers on the basis of the acquired reflected sound information. The operations further include correcting the acoustic characteristics of the plurality of speakers using the calculated correction coefficients.
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公开(公告)号：US09774935B2
公开(公告)日：2017-09-26
申请号：US15246958
申请日：2016-08-25
Inventor： Toshiyuki Matsumura , Akihisa Kawamura , Kazuki Honda , Takafumi Yuasa , Shuji Saiki , Satoshi Takayama
CPC classification number: H04R1/025 , H04R1/26 , H04R1/2819 , H04R1/2865 , H04R1/2896 , H04R1/345 , H04R1/403 , H04R7/127 , H04R7/18 , H04R9/025 , H04R9/046 , H04R9/06 , H04R2499/13 , H04R2499/15
Abstract: A speaker device for reproducing an audio signal includes a first speaker including a first diaphragm and a first magnetic circuit that drives the first diaphragm, where the first diaphragm reproduces an audio signal including a predetermined frequency range, a second speaker including a second diaphragm and a second magnetic circuit that drives the second diaphragm, where the second diaphragm reproduces an audio signal including a frequency range substantially the same as the predetermined frequency range, and at least one cabinet having the first speaker and the second speaker mounted therein so that radiation directions of sounds are opposite to each other. At least part of a space formed between the first speaker and the second speaker communicates with the outside of the cabinet. When the speaker device reproduces the audio signal, the first diaphragm and the second diaphragm vibrate in opposite directions.
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公开(公告)号：US10469925B2
公开(公告)日：2019-11-05
申请号：US16074790
申请日：2017-02-21
Inventor： Suemei Fukuhara , Kazuki Honda , Takafumi Yuasa , Churo Sato , Ippei Kiyama , Satoshi Takayama
Abstract: A speaker device includes: a loudspeaker including a diaphragm and a field portion disposed rearwardly of the diaphragm; and a cabinet accommodating the field portion. The loudspeaker also includes a mounting member with which the loudspeaker is mounted to the cabinet, and a mounting plane of the mounting member includes a center of gravity of the loudspeaker.
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公开(公告)号：US09813820B2
公开(公告)日：2017-11-07
申请号：US15023419
申请日：2015-02-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
CPC classification number: H04R9/06 , F21V33/0056 , G02B6/002 , G02B6/0055 , H04R1/028 , H04R7/125 , H04R7/22 , H04R2499/13
Abstract: A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm has an inner circumferential end including an end face facing the light-emitting element, and a light guide having a reflecting surface formed thereon and provided at a position where light enters from the end face. The first end of the voice coil bobbin is joined to the inner circumferential end of the diaphragm, and the second end is inserted into the magnetic gap. The voice coil is wound around the second end of the voice coil bobbin. Light from the light-emitting element enters the end face of the diaphragm, is diffused by the light guide, and is reflected on the reflecting surface.
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6.发明授权公开(公告)号：US09628916B2
公开(公告)日：2017-04-18
申请号：US15023681
申请日：2015-03-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
CPC classification number: H04R7/125 , B60R11/0217 , F21V33/0056 , G02B6/0055 , H04R1/025 , H04R1/028 , H04R7/12 , H04R9/025 , H04R9/04 , H04R9/045 , H04R2307/021 , H04R2307/025 , H04R2307/029 , H04R2499/11
Abstract: A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm includes an inner peripheral end portion having an end face to which a light-emitting element is coupled, a light-guide portion, a reflective surface, and an outer peripheral end portion coupled to the frame. The first end of the voice coil bobbin is coupled to the inner peripheral end portion of the diaphragm, and the second end thereof is inserted into the magnetic gap. A voice coil is wound on the second end of the voice coil bobbin.
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