公开(公告)号：US5844154A

公开(公告)日：1998-12-01

申请号：US710432

申请日：1996-09-17

Applicant: Thomas E. Kimble

Inventor： Thomas E. Kimble

IPC: G10C5/00 ,  G10H1/34 ,  G10D15/00

CPC classification number: G10H1/344 ,  G10C3/22 ,  G10C3/26 ,  G10C5/005

Abstract: A combination acoustic mode and electronic mode grand piano is provided including a hammer shank stop rail that intercepts the hammer shank when operating in its electronic mode, so that the hammer cannot complete its normal travel to strike its corresponding string(s) when its key is actuated. The positioning of the hammer shank stop rail is actuated by a user-operated control that, when placed into the "acoustic" mode, raises the hammer shank stop rail to a non-engaged position that does not interfere with the normal movements of the hammer shank. When in the "electronic" mode, the control lowers the hammer shank stop rail into an engaged position where it intercepts the hammer shanks of the piano, thereby preventing each hammer head from striking its respective string(s). When in the engaged position, the wire cam also causes an "early escapement rail" to be moved into a location such that flexible "early escapement tabs" are moved into positions just beneath the letoff button of each of the key actions, thereby preventing a harsh "feel" or "touch" as perceived by the human player of the piano. In a second embodiment of a combination dual-mode piano, a hammer head stop rail is provided for an upright piano which intercepts the hammer head when in the electronic mode. When placed into the acoustic mode, the hammer head stop rail is rotated to a non-engaged position that is not within the normal path of the hammer travel. When operated in the electronic mode, the actuating arm is rotated such that the hammer head stop rail becomes positioned directly in the path of travel of the hammer heads of the upright piano, where they will impact directly against the stop rail. In the illustrated embodiment, the stop rail comprises a deflectable member that is coated with a sound and vibration absorbing material, such that when the hammer head impacts the stop rail, the deflectable member somewhat displaces, as the hammer head impacts against this member. The hammer head stop rail also includes a sound and vibration absorbing pad that is brought into position against the strings of the piano, thereby tending to dampen any acoustic vibration that may otherwise become induced in the strings.

公开(公告)号：US5741995A

公开(公告)日：1998-04-21

申请号：US586076

申请日：1996-01-11

Applicant: Kiyoshi Kawamura ,  Shinya Koseki ,  Nobuo Sugiyama ,  Masahiro Wada

Inventor： Kiyoshi Kawamura ,  Shinya Koseki ,  Nobuo Sugiyama ,  Masahiro Wada

IPC: G10C5/00 ,  G10H1/34 ,  G10H1/32

CPC classification number: G10H1/0066 ,  G10C5/005 ,  G10H1/344 ,  G10H1/346 ,  G10H2230/011 ,  G10H2240/056

Abstract: In order to give piano-like key touch to a player in an electronically sound producing mode, a keyboard incorporated in a musical instrument is linked with key action mechanisms associated with hammer mechanisms, and a stopper blocks the hammer shanks before the hammers strike the strings so that noises are not mixed with synthesized tones.

公开(公告)号：US5612502A

公开(公告)日：1997-03-18

申请号：US509812

申请日：1995-08-01

Applicant: Tomoyuki Ura

Inventor： Tomoyuki Ura

IPC: G10H1/053 ,  G10F1/02 ,  G10H1/34 ,  G10C3/12 ,  G10C5/00 ,  G10D15/00

CPC classification number: G10H1/344

Abstract: A keyboard musical instrument includes an acoustic piano for generating acoustic sounds, an electronic system for generating electronic sounds and a silent system for selecting one of the acoustic sounds and the electronic sounds, and the electronic system is equipped with key sensors and hammer sensors so as to determine a loudness of the electronic sound and a timing for a tone-generation from a key position signal or a hammer position signal depending upon a fingering on a keyboard.

Abstract translation: 键盘乐器包括用于产生声音的声学钢琴，用于产生电子声音的电子系统和用于选择声音和电子声音之一的静音系统，并且电子系统配备有键传感器和锤传感器，以便 根据键盘上的指法来确定电子声音的响度和来自键位置信号或音锤位置信号的音调生成的定时。

公开(公告)号：US5524519A

公开(公告)日：1996-06-11

申请号：US268247

申请日：1994-06-29

Applicant: Hiroshi Matsunaga ,  Hisamitsu Honda

Inventor： Hiroshi Matsunaga ,  Hisamitsu Honda

IPC: G10C3/16 ,  G10C3/26 ,  G10C5/00 ,  G10C3/20

CPC classification number: G10C3/26 ,  G10C3/16 ,  G10C5/005

Abstract: In a piano mechanism, the sound volume can be effectively controlled without changing the feel of the key or tone quality. A hammer regulating button projecting from a hammer rail contacts the upper face of a catcher just before a hammer strikes a string. By restricting the string striking movement, the volume of string striking sound is controlled, irrespective of the mechanical operation of a jack or other associated transmitting components responsive to the key depressing. No cushioning material is required between hammer and string. In a piano having an electronic sound source built therein, even when the keys are depressed, the hammer can be stopped from striking strings by the provision of a hammer shank stop rail and a catcher regulating button. Therefore, without generating a string striking sound, sounds are generated from the electronic sound source. By manually turning an adjusting screw of the catcher regulating button, the position of the hammer when stopped can be adjusted. Therefore, even after repeated use, the string striking movement can be positively stopped.

Abstract translation: 在钢琴机构中，可以有效地控制音量，而不改变琴键或音质的感觉。 从锤子轨道突出的锤子调节按钮在锤子撞击绳子之前接触捕获器的上表面。 通过限制弦线冲击运动，可以控制弦击音的音量，而不管千斤顶或其他相关联的发射部件的响应于按键的机械操作。 锤和弦之间不需要缓冲材料。 在其中内置有电子声源的钢琴中，即使按下按键，也可以通过设置琴槌止动轨和收音机调节按钮来将琴槌停止在击弦上。 因此，不会产生串音冲击的声音，从电子声源产生声音。 通过手动转动捕手调节按钮的调节螺丝，可以调节锤子在停止时的位置。 因此，即使在重复使用之后，可以肯定地停止线条打击动作。

公开(公告)号：US5509340A

公开(公告)日：1996-04-23

申请号：US345497

申请日：1994-11-28

Applicant: Kiyoshi Kawamura

Inventor： Kiyoshi Kawamura

IPC: G10C1/02 ,  G10C3/16 ,  G10C5/00 ,  G10C9/00 ,  G10C3/18

CPC classification number: G10C5/005

Abstract: On a keyboard musical instrument provided with action assemblies each including a catcher and silent assemblies each including a stopper, the real silent distance between each catcher and an associated stopper is measured to calculate its difference from the optimal silent distance, and one or more attachments are added to or one or more components are removed from either of the two elements depending on the polarity of the difference in silent distance in order to minimize the let off distance of each hammer relative to an associated string.

Abstract translation: 在设置有动作组件的键盘乐器中，每个动作组件包括捕获器和每个包括止动器的静音组件，测量每个捕手和相关联的止动器之间的真实无声距离以计算其与最佳无声距离的差异，并且一个或多个附件 根据静音距离的差异的极性，从两个元件中的任一个元件中去除一个或多个元件，以使每个锤子相对于相关联的串的放开距离最小化。

公开(公告)号：US2784633A

公开(公告)日：1957-03-12

申请号：US38423553

申请日：1953-10-05

Applicant: FRANK HESS

Inventor： FRANK HESS

IPC: G10C5/00

CPC classification number: G10C5/00

公开(公告)号：US2250065A

公开(公告)日：1941-07-22

申请号：US36897640

申请日：1940-12-07

Applicant: KOCHL JAMES A

Inventor： KOCHL JAMES A

IPC: G10C5/00

CPC classification number: G10C5/00

公开(公告)号：US1798020A

公开(公告)日：1931-03-24

申请号：US33583629

申请日：1929-01-29

Applicant: HIGGINBOTHAM GEORGE W

Inventor： HIGGINBOTHAM GEORGE W

IPC: G10C5/00

CPC classification number: G10C5/00

公开(公告)号：US20150364122A1

公开(公告)日：2015-12-17

申请号：US14729305

申请日：2015-06-03

Applicant: Bin Ye

Inventor： Bin Ye

IPC: G10H1/00 ,  G10C5/00

CPC classification number: G10H1/0016 ,  G10G1/02 ,  G10H2220/061 ,  G10H2220/441 ,  G10H2240/251

Abstract: Provided is a music note indicating method for an electronic piano, a mobile terminal, an electronic piano and a music note indicating system. The electronic piano includes a keyboard with a plurality of keys, a controlling device and a plurality of LED indicating lamps. The plurality of LED indicating lamps are located in a plane parallel to the keyboard. The method includes: obtaining a music score information of a predetermined music score by a mobile terminal; analyzing the music score information to generate a music note sequence comprising at least one first music note data by the mobile terminal; generating a control signal according to the at least one first music note data and sending the control signal to the controlling device by the mobile terminal; and controlling the plurality of LED indicating lamps to indicate the music note sequence according to the control signal by the controlling device.

Abstract translation: 提供了一种用于电子钢琴，移动终端，电子钢琴和音乐笔记指示系统的音乐笔记指示方法。 电子钢琴包括具有多个键的键盘，控制装置和多个LED指示灯。 多个LED指示灯位于与键盘平行的平面中。 该方法包括：通过移动终端获得预定乐谱的乐谱信息; 分析音乐乐谱信息以生成由移动终端包括至少一个第一音乐数据的音乐音符序列; 根据所述至少一个第一音乐音符数据生成控制信号，并由所述移动终端向控制设备发送控制信号; 以及根据控制装置的控制信号，控制多个LED指示灯来指示音乐音符序列。

公开(公告)号：US06891092B2

公开(公告)日：2005-05-10

申请号：US10932762

申请日：2004-09-02

Applicant: David Meisel

Inventor： David Meisel

IPC: G10C3/12 ,  G10C5/00 ,  G10F1/02 ,  G10F5/00 ,  G10G3/04 ,  G10H1/055 ,  G10H1/34

CPC classification number: G10H1/344 ,  G10C3/12 ,  G10C5/00 ,  G10F1/02 ,  G10F5/00 ,  G10G3/04 ,  G10H1/0555 ,  G10H2220/305

Abstract: A key actuation system that is designed for use with a keyboard instrument of the type having multiple keys. Each key is pivotally supported and has a front end that is depressed by a player to play a note. The actuation system includes multiple actuators that are operable to move at least some of the keys. The actuators together include a block of ferromagnetic material with a surface with multiple bores defined in the surface. Each of the bores has a diameter. A winding is positioned in each of the bores. Each of the windings has a hole. A piston is provided at least partially in each of the holes, with each piston being in mechanical communication with one of the keys such that movement of the piston causes movement of the key. Each piston has a width. A ferromagnetic flux plate with multiple openings is positioned on the surface of the block of ferromagnetic material with the openings aligned with the bores. The openings each have a width that is less than the diameter of the bores, such that the flux plate partially closes off the upper end of each bore. When the windings are energized, the corresponding piston moves, thereby moving one of the keys.