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公开(公告)号：US11611272B2
公开(公告)日：2023-03-21
申请号：US17168521
申请日：2021-02-05
申请人： Yamaha Corporation
发明人： Taku Ueda , Hisanobu Suzuki , Naoaki Kurita
摘要： A rotation operation device includes a stepping motor and an operation element. The stepping motor has a rotating shaft. The operation element is provided on the rotating shaft. The operation element also rotates the rotating shaft.
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公开(公告)号：US11002570B2
公开(公告)日：2021-05-11
申请号：US16134761
申请日：2018-09-18
申请人： Yamaha Corporation
摘要： A fixed element is provided to be used in a position detection device for detecting a position of a movable element that moves on the fixed element. The fixed element includes a substrate, a plurality of first electrodes and a second electrode. The substrate has as first surface, a second surface and a low-dielectric constant area. The second surface faces in an opposite direction to the first surface. The low-dielectric constant area has a lower-dielectric constant than other portions of the substrate. The first electrodes are disposed on the first surface of the substrate. The first electrodes include three or more phases arranged one-dimensionally in a repeating pattern in a movement direction of the movable element. The second electrode is disposed on the first surface of the substrate and is arranged in the movement direction of the movable element adjacent the first electrodes. The low-dielectric constant area of the substrate is provided in a position between the first electrodes and the second electrode.
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公开(公告)号：US09712269B2
公开(公告)日：2017-07-18
申请号：US15223493
申请日：2016-07-29
申请人： Yamaha Corporation
发明人： Taku Ueda , Satoshi Takemura
IPC分类号： H04B1/00 , H04H60/04 , F21V33/00 , H05B37/02 , F21W131/406
CPC分类号： H04H60/04 , F21V33/0056 , F21W2131/406 , H05B37/0209
摘要： An electric fader drive unit includes a drive portion, a fader position control portion, and an electric fader control portion. The fader position control portion detects a distance between a current position of the electric fader and a target position, indicates a high speed movement mode when the distance is not less than a predetermined value, and indicates a silent movement mode when the distance is less than the predetermined value. The electric fader control portion controls the drive portion to change the drive power to silent drive power not less than the minimum drive power that is the lowest drive power for moving the electric fader when the fader position control portion indicates the silent movement mode, and controls the drive portion to change the drive power to base drive power more than the silent drive power when the fader position control position indicates the high speed movement mode.
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公开(公告)号：US11513529B2
公开(公告)日：2022-11-29
申请号：US16904795
申请日：2020-06-18
申请人： Yamaha Corporation
发明人： Taku Ueda , Hisashi Nagai , Naoaki Kurita , Yuji Sakurai , Hisanobu Suzuki
摘要： An audio system includes an audio apparatus, a charger, and a conveyer. The audio apparatus includes a sound receiver to receive ambient sound, and a battery. The charger charges the battery of the audio apparatus. The conveyer includes a motor to transport the audio apparatus.
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公开(公告)号：US09929822B2
公开(公告)日：2018-03-27
申请号：US15223379
申请日：2016-07-29
申请人： Yamaha Corporation
发明人： Taku Ueda , Satoshi Takemura
CPC分类号： H04H60/04 , H05B37/0227 , Y02D70/00
摘要： An electric fader drive unit includes a drive portion, a fader position control portion, and an electric fader control portion. The drive portion drives an electric fader by supplying drive power to the electric fader. The fader position control portion indicates a target position of the electric fader. The electric fader control portion receives an indication of the target position from the fader position control portion, and, when controlling the drive portion to move the electric fader to the target position, moves the electric fader to the target position by changing the drive power maintained at preparation drive power less than the minimum drive power that is the lowest drive power required for moving the electric fader to a predetermined drive power not less than the minimum drive power.
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公开(公告)号：US10778350B2
公开(公告)日：2020-09-15
申请号：US16547941
申请日：2019-08-22
申请人： YAMAHA CORPORATION
发明人： Taku Ueda , Hisashi Nagai , Hisanobu Suzuki
摘要： A fader device according to an aspect of the present invention includes: a guide rail that extends linearly and a slider that slidably engages with the guide rail, in which the slider includes a pressure-contact member that is to be in pressure contact with the guide rail, and a compression coil spring for jutting the pressure-contact member toward the guide rail.
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公开(公告)号：US10768021B2
公开(公告)日：2020-09-08
申请号：US16134729
申请日：2018-09-18
申请人： Yamaha Corporation
发明人： Taku Ueda , Yoshihiro Suzuki , Yoshihiro Natsume
摘要： A position detection device includes a fixed element, a movable element, a plurality of first electrodes, a second electrode, a third electrode and a first detection circuit. The movable element is movable relative to the fixed element. The first electrodes are arranged on either the fixed element or the movable element, and the second electrode is on the other of the movable element or the fixed element. The first electrodes include two or more phases with electrical signals having mutually different phases. The third electrode is provided on the fixed element and opposing the electrode that is on the movable element while the movable element is in a prescribed position. The first detection circuit detects when the movable element is in the prescribed position based on electrical signals generated in the second and third electrodes in accordance with the electrical signals supplied to the first electrodes.
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