公开(公告)号：US12003918B2

公开(公告)日：2024-06-04

申请号：US17200724

申请日：2021-03-12

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Ryohei Kobayashi ,  Hiroki Akai ,  Teruo Jinbo ,  Kouji Oshima ,  Shingo Fukushima

IPC: H04R1/28 ,  G10H1/34 ,  H04R1/02 ,  H04R1/40 ,  H04R3/12

CPC classification number: H04R1/2826 ,  G10H1/344 ,  H04R1/025 ,  H04R1/2834 ,  H04R1/403 ,  H04R3/12 ,  G10H2220/221

Abstract: An electronic musical instrument according to one embodiment of the present disclosure includes a loudspeaker which releases sounds in a first direction in accordance with an instrument playing operation, an internal component which includes a substrate, a case which houses the loudspeaker and the internal component and has a first region which faces a rear face of the loudspeaker and a second region which faces a rear face of the internal component and does not face the rear face of the loudspeaker, and a sound releasing member which is disposed on an installation face side and in the second region, and releases acoustics in an acoustic space which is formed around the loudspeaker in a second direction which is opposite to the first direction.

公开(公告)号：US20240120145A1

公开(公告)日：2024-04-11

申请号：US18481251

申请日：2023-10-05

Applicant: Roland Corporation

Inventor： Hajime Hisamitsu ,  Toshihiko Sakashita

IPC: H01F27/28 ,  G10H1/34 ,  H03K17/972

CPC classification number: H01F27/2885 ,  G10H1/346 ,  H03K17/972 ,  G10H2220/221 ,  G10H2220/275 ,  H03K2017/9706

Abstract: A keyboard device and a magnetic shield forming method are provided. The keyboard device includes: a plurality of displacement members (detected portions, conductors) arranged in a scale direction and displaced according to an operation of a player; and a substrate having a coil which generates a magnetic field for detecting displacement of the plurality of displacement members. The substrate includes a plurality of the coils provided respectively for the plurality of displacement members, and a magnetic shield partitioning the plurality of coils and formed by a conductive pattern of the substrate.

公开(公告)号：US20240112657A1

公开(公告)日：2024-04-04

申请号：US18473937

申请日：2023-09-25

Applicant: KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO

Inventor： Takuma MURAI

IPC: G10H1/34

CPC classification number: G10H1/346 ,  G10H2220/221 ,  G10H2220/265

Abstract: A key weight capable of being easily mounted in a key for a keyboard instrument and being positively prevented from falling off the key. The key weight is mounted in the key by being inserted from outside into a weight-accommodating portion of the key, and includes a block-shaped weight body portion, protrusions that are formed on an insertion leading end of the weight body portion into the weight-accommodating portion and are elastically deformed by a reaction force from a far-side wall surface of the weight-accommodating portion when the weight body portion in a state in contact with the far-side wall surface during mounting of the key weight is pushed into the weight-accommodating portion, and latched portions that are formed on side surfaces of the weight body portion and are latched with side walls of the weight-accommodating portion.

公开(公告)号：US11862134B2

公开(公告)日：2024-01-02

申请号：US17179513

申请日：2021-02-19

Applicant: YAMAHA CORPORATION

Inventor： Tetsuya Nishimura ,  Naoki Nishimura ,  Yuji Takahashi

IPC: G10H1/34 ,  G10C3/12 ,  G10C3/04

CPC classification number: G10H1/346 ,  G10C3/04 ,  G10C3/12 ,  G10H2220/221

Abstract: A key support structure of a keyboard device includes a first member and a second member that supports the first member. The first member is pivotal about a first axis that extends in a first direction and movable with a degree of freedom of movement in a rolling direction, which is a direction of rotation around a second axis extending in a second direction that is substantially orthogonal to the first direction. the second member restricts a movement of the first member in the first direction, while pivotally supporting the first member about the first axis.

公开(公告)号：US20230386442A1

公开(公告)日：2023-11-30

申请号：US18359471

申请日：2023-07-26

Applicant: YAMAHA CORPORATION

Inventor： Shunsuke MIYOSHI ,  Yuji TAKAHASHI ,  Naoki NISHIMURA ,  Hiroshi HARIMOTO

IPC: G10H1/34 ,  G10H1/00

CPC classification number: G10H1/346 ,  G10H1/0008 ,  G10H2220/221 ,  G10H2220/281

Abstract: A detection system for a keyboard instrument includes a movable member that is displaceable in response to a user playing operation of the keyboard instrument. The detection system includes: (i) a detectable portion of a magnetic or conductive body that is disposed on the movable member; (ii) a detection board including: a detection coil disposed facing the detectable portion; and a detection circuit configured to generate a detection signal depending on a distance between the detection coil and the detectable portion; (iii) a control board, which is discrete from the detection board, including a control integrated circuit configured to generate, based on the detection signal, displacement data indicating a position of the movable member; and (iv) a wiring portion including a wiring configured to transmit the detection signal from the detection board to the control board.

公开(公告)号：US20230351992A1

公开(公告)日：2023-11-02

申请号：US18305236

申请日：2023-04-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Yasushi SHIRAISHI

IPC: G10H1/34

CPC classification number: G10H1/346 ,  G10H2220/221 ,  G10H2220/265

Abstract: The keyboard instrument includes mounting members (a first member and a second member) and a key base member 300 in which the mounting members are mounted on side surfaces. On the lower side of the side surfaces, there are lower groove portions that cannot be visually recognized from the outside when the mounting members are attached.

公开(公告)号：US20230317041A1

公开(公告)日：2023-10-05

申请号：US18189143

申请日：2023-03-23

Applicant: KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO

Inventor： Satoshi KITO

IPC: G10H1/34

CPC classification number: G10H1/346 ,  G10H2220/221 ,  G10H2220/265

Abstract: A keyboard device for a keyboard includes a hammer vertically pivotally moved in a manner interlocked with a key having been depressed, and a cushion provided below the hammer, the hammer contacting the cushion from above when the hammer having been pivotally moved upward in accordance with depression of the key returns to an original position in accordance with release of the key. The hammer includes a plurality of protrusions formed at respective spaced location in a rearward sequence from a hammer support shaft, such that they each extend downward. The cushion is formed by a plurality of cushions sequentially contacted by the plurality of protrusions, when the hammer contacts the cushion from above, in order from a protrusion closest to the hammer support shaft toward a protrusion remotest from the hammer support shaft.

公开(公告)号：US11657790B2

公开(公告)日：2023-05-23

申请号：US17741679

申请日：2022-05-11

Applicant: YAMAHA CORPORATION

Inventor： Kenichi Nishida ,  Harumichi Hotta ,  Jun Ishii

IPC: G10H1/34 ,  G01D5/20 ,  G10B3/12 ,  G10C3/12

CPC classification number: G10H1/344 ,  G01D5/2073 ,  G10B3/12 ,  G10C3/12 ,  G10H2220/221 ,  G10H2220/275

Abstract: An operation detection device for a key operation of a keyboard device includes a conductive unit configured to be disposed on each of keys, a substrate configured to be disposed facing each of the keys in a pressing direction of the keys. The substrate is provided with a sensor including at least first and second coils, the sensor being configured to be disposed spaced from one key so that at least one of the first or second coil outputs a signal corresponding to a distance between the one key and the respective sensor. The operation detection device includes a detection unit configured to detect a displacement of the one key in at least one of a yaw direction or a roll direction based on signals output from the first and second coils during a key pressing stroke of the one key.

公开(公告)号：US20190244593A1

公开(公告)日：2019-08-08

申请号：US16241901

申请日：2019-01-07

Applicant: Harvey Starr

Inventor： Harvey Starr

IPC: G10H1/00 ,  G10H1/34

CPC classification number: G10H1/0008 ,  G10H1/342 ,  G10H1/344 ,  G10H2220/221

Abstract: The invention pertains to devices utilized by artists that produce musical sounds and aesthetic lights, including lights that correspond to the sounds. More specifically, the invention pertains to a modular system comprising modules of a play device, such as a smart phone, a fingerboard comprising a keyboard and lights corresponding to the keys and a docking station for mounting and joining the play device and fingerboard together. Using music and light control application software loaded on the play device and the keys of the fingerboard, the play device and fingerboard exchange and communicate sound and light information and instructions with each other. The play device plays sounds and the fingerboard displays lights.

公开(公告)号：US20180144732A1

公开(公告)日：2018-05-24

申请号：US15579416

申请日：2016-06-03

Applicant: Qluge AS

Inventor： Espen Kluge

IPC: G10H1/38 ,  G10H1/00 ,  G10H5/00

CPC classification number: G10H1/38 ,  G10H1/0008 ,  G10H1/0025 ,  G10H1/36 ,  G10H1/46 ,  G10H5/002 ,  G10H2210/005 ,  G10H2210/031 ,  G10H2210/125 ,  G10H2210/141 ,  G10H2210/145 ,  G10H2210/251 ,  G10H2210/571 ,  G10H2210/576 ,  G10H2220/091 ,  G10H2220/155 ,  G10H2220/221 ,  G10H2240/075 ,  G10H2240/121 ,  G10H2250/025

Abstract: A method and a device provides a user with the ability to freely improvise or play around with a selection of different chords and be provided with visual guidance assisting the improvisation of melody, while also providing accompaniment consistent with the selection of chords. Sound files consistent with a user selection of a chord and/or a dynamic level are selected from an audio library and played, while the user is given visual cues on a user interface keyboard assisting the user to select notes that are consistent with the chord selected for the accompaniment.