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公开(公告)号：US11329520B2
公开(公告)日：2022-05-10
申请号：US17161413
申请日：2021-01-28
Inventor： Hiroyuki Matsuo , Keisuke Fujimoto
Abstract: A power transmission device includes a power transmission coil, a magnetically shielded space created by a power transmission-side cancel coil arranged outside the power transmission coil, a moving member configured to move a metal foreign substance, and a moving mechanism configured to move a part or all of an upper surface of the moving member from an area outside the magnetically shielded space into the magnetically shielded space.
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公开(公告)号：US10595115B2
公开(公告)日：2020-03-17
申请号：US16414211
申请日：2019-05-16
Inventor： Keisuke Fujimoto , Yushi Ogino
Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.
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Patent Agency Ranking
公开(公告)号：US11804736B2
公开(公告)日：2023-10-31
申请号：US17717717
申请日：2022-04-11
Inventor： Hiroyuki Matsuo , Keisuke Fujimoto
Abstract: A power transmission device includes a power transmission coil, a magnetically shielded space created by a power transmission-side cancel coil arranged outside the power transmission coil, a moving member configured to move a metal foreign substance, and a moving mechanism configured to move a part or all of an upper surface of the moving member from an area outside the magnetically shielded space into the magnetically shielded space.
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公开(公告)号：US11089393B2
公开(公告)日：2021-08-10
申请号：US16720221
申请日：2019-12-19
Inventor： Keisuke Fujimoto , Koji Sano , Yasunori Miyamoto , Teppei Koido
Abstract: A loudspeaker system includes a housing including a first housing portion and a second housing portion that are plate-shaped and face each other, a loudspeaker drive unit fixed to the first housing portion, and a coupling member that is rigid and couples the first housing portion and the second housing portion to each other inside the housing. The coupling member includes a first end that is directly or indirectly coupled to the first housing portion and a second end that is directly or indirectly coupled to the second housing portion. When second force is applied to the coupling member, the second force being smaller than first force that irreversibly deforms or breaks a coupling portion between the coupling member and the first housing portion, the coupling member is irreversibly deformed or broken so as to shorten a distance between the first end and the second end of the coupling member.
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公开(公告)号：US10979833B2
公开(公告)日：2021-04-13
申请号：US16701344
申请日：2019-12-03
Inventor： Yasunori Miyamoto , Keisuke Fujimoto
Abstract: An acoustical performance evaluation method includes a reference sound pressure decision step and a deviation calculation step. In the reference sound pressure decision step, frequency response of sound pressure level, obtained by considering only an influence of a first factor of a plurality of factors causing a deterioration in frequency response of sound pressure level of a loudspeaker to be evaluated, are decided as a reference sound pressure. The reference sound pressure is frequency response of sound pressure level of the loudspeaker in the anechoic chamber calculated through a simulation or measured through a measurement experiment. In the deviation calculation step, a deviation between the reference sound pressure and a target sound pressure is calculated as an evaluation index of acoustical performance. The target sound pressure is frequency response of sound pressure level of the loudspeaker in the anechoic chamber calculated through a simulation or measured through a measurement experiment.
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公开(公告)号：US10341757B2
公开(公告)日：2019-07-02
申请号：US15879977
申请日：2018-01-25
Inventor： Keisuke Fujimoto , Yushi Ogino
Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.
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公开(公告)号：US09826211B2
公开(公告)日：2017-11-21
申请号：US14654944
申请日：2013-12-27
Inventor： Hirotaka Sawa , Shinichi Shigenaga , Toshimichi Tokuda , Shintaro Yoshikuni , Shuichi Watanabe , Tadashi Maki , Hirokazu Tasaka , Susumu Ono , Keisuke Fujimoto , Shojiro Matsuo , Teppei Fukuda , Hiroyuki Matsumoto , Akitoshi Izumi , Hisashi Tsuji , Kazunori Hayashi , Ryoichi Yuge
IPC: H04N9/80 , H04N9/802 , G11B31/00 , H04N5/93 , H04N21/234 , H04N21/81 , H04R3/00 , H04N9/82 , H04N9/87 , H04N5/225 , G11B27/34 , H04R1/08 , H04R27/00 , G11B27/10 , H04R1/04 , H04R1/40 , H04R29/00
CPC classification number: H04N9/802 , G11B27/10 , G11B27/34 , G11B31/006 , H04N5/2252 , H04N5/93 , H04N9/8211 , H04N9/87 , H04N21/23412 , H04N21/8106 , H04R1/04 , H04R1/08 , H04R1/086 , H04R1/406 , H04R3/005 , H04R27/00 , H04R29/008 , H04R2201/021 , H04R2410/07 , H04R2499/15
Abstract: A recorder receives designation of a video which is desired to be reproduced from a user. If designation of one or more designated locations where sound is emphasized on a screen of a display which displays the video is received by the recorder from the user via an operation unit during reproduction or temporary stopping of the video, a signal processing unit performs an emphasis process on audio data, that is, the signal processing unit emphasizes audio data in directions directed toward positions corresponding to the designated locations from a microphone array by using audio data recorded in the recorder. A reproducing device reproduces the emphasis-processed audio data and video data in synchronization with each other.
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