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1.发明授权Keyboard instrument selectively entering into acoustic sound mode and silent mode through angular motion of key bed structure 失效键盘乐器通过键床结构的角运动选择性地进入声音模式和静音模式
公开(公告)号：US5428186A
公开(公告)日：1995-06-27
申请号：US198250
申请日：1994-02-17
摘要： An acoustic piano is equipped with an electronic sound generating system, and a key bed structure is angularly movable between an acoustic sound mode and an electronic sound mode for changing gaps between hammer heads and sets of strings, thereby allowing a player to perform a music with acoustic sounds or synthesized sounds.
摘要翻译： 声学钢琴配备有电子声音产生系统，并且键床结构在声音模式和电子声音模式之间可角度地移动，用于改变琴锤头和弦组之间的间隙，从而允许玩家执行音乐 声音或合成声音。
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2.发明授权
公开(公告)号：US5831194A
公开(公告)日：1998-11-03
申请号：US837902
申请日：1997-04-22
CPC分类号： G10H1/0575 , G10H7/02 , Y10S84/09
摘要： An electronic keyboard musical instrument is responsive to a step-on of a soft pedal so as to impart effects similar to those of a soft pedal of an acoustic piano to an electronic sound; a tone generator incorporated in the electronic keyboard musical instrument causes a series of waveform data codes to be read out at a higher speed so as to slightly increase the pitch of an electronic sound, an envelop generator to give a gentle envelop with a small attack and a long sustain to the electronic sound and a filter circuit to emphasize a certain high frequency component, thereby making the electronic sound to be quite close to the piano sound produced under the step-on of the soft pedal.
摘要翻译： 电子键盘乐器响应于软踏板的踏入，以便将与原声钢琴的软踏板相似的效果赋予电子声音; 结合在电子键盘乐器中的音调发生器使得能够以更高的速度读出一系列波形数据代码，以便稍微增加电子声音的间距，包络发生器以小的攻击给出温和的包络， 对电子声音的长时间保持和用于强调某一高频分量的滤波器电路，从而使得电子声音非常接近在软踏板的踏入下产生的钢琴声音。
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3.发明授权
公开(公告)号：US5610356A
公开(公告)日：1997-03-11
申请号：US503527
申请日：1995-07-18
申请人： Shinya Koseki , Kiyoshi Kawamura
发明人： Shinya Koseki , Kiyoshi Kawamura
CPC分类号： G10C5/005
摘要： A keyboard musical instrument selectively enters into an acoustic sound mode for generating acoustic piano tones and an electronic sound mode for generating electronic sounds instead of the acoustic piano tones, and a stopper is changed between a free position and a blocking position by an actuator controlled through detection with photo-interrupters, thereby eliminating aged deterioration from the position control between the free position and the blocking position.
摘要翻译： 键盘乐器选择性地进入用于产生声学钢琴音调的声学声音模式和用于产生电子声音而不是原声钢琴音调的电子声音模式，并且通过控制的致动器在自由位置和阻挡位置之间改变止动器 利用光电断路器进行检测，从而消除位置控制在自由位置和阻挡位置之间的老化劣化。
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4.发明授权Keyboard musical instrument having key action mechanisms movable to and from strings 失效键盘乐器具有可从琴弦移出的键动作机构
公开(公告)号：US5594188A
公开(公告)日：1997-01-14
申请号：US123294
申请日：1993-09-17
CPC分类号： G10C5/005
摘要： A keyboard musical instrument allowing a player to perform using acoustic piano tones or electronic sounds is provided. The keyboard is movable between various positions, such as between a raised and a lowered position. In an electronic sound mode, the keyboard is lowered so as to increase a gap between hammer assemblies and associated strings. In this mode, each hammer assembly rebounds on a stopper when a corresponding key is selected, thereby giving a desirable piano touch.
摘要翻译： 提供允许玩家使用声学钢琴音调或电子声音执行的键盘乐器。 键盘可在各种位置之间移动，例如在升高和降低位置之间。 在电子声音模式中，键盘被降低以便增加琴弦组件和相关琴弦之间的间隙。 在这种模式中，当选择对应的键时，每个琴槌组件在制动器上弹回，从而给出期望的钢琴触感。
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公开(公告)号：US5741995A
公开(公告)日：1998-04-21
申请号：US586076
申请日：1996-01-11
申请人： Kiyoshi Kawamura , Shinya Koseki , Nobuo Sugiyama , Masahiro Wada
发明人： Kiyoshi Kawamura , Shinya Koseki , Nobuo Sugiyama , Masahiro Wada
CPC分类号： G10H1/0066 , G10C5/005 , G10H1/344 , G10H1/346 , G10H2230/011 , G10H2240/056
摘要： 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.
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6.发明授权Automatic playing apparatus with pedal actuators supported by bracket independent of case of acoustic piano 失效自动播放设备，带有踏板执行器，支架独立于钢琴的外壳
公开(公告)号：US5565635A
公开(公告)日：1996-10-15
申请号：US317754
申请日：1994-10-04
申请人： Yasutoshi Kaneko , Kiyoshi Kawamura
发明人： Yasutoshi Kaneko , Kiyoshi Kawamura
CPC分类号： G10F3/00
摘要： An automatic playing apparatus is provided for an acoustic piano for reproducing a music without fingering of a player on a keyboard, and has a pedal actuator unit directly supported by a floor so that a reaction of the pedal is never exerted to the piano case, thereby preventing the key bed from deformation due to the reaction.
摘要翻译： 提供了一种用于钢琴的自动演奏装置，用于在不用键盘上的玩家的指法的情况下再现音乐，并且具有由地板直接支撑的踏板致动器单元，使得踏板的反作用力不会施加到钢琴盒 防止钥匙床因反应而变形。
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7.发明授权Grand piano-like keyboard instrument for selectively producing acoustic sound and synthesized sound 失效用于选择性地产生声音和合成声音的大型钢琴般的键盘乐器
公开(公告)号：US5602351A
公开(公告)日：1997-02-11
申请号：US174179
申请日：1993-12-27
申请人： Kiyoshi Kawamura , Yasutoshi Kaneko
发明人： Kiyoshi Kawamura , Yasutoshi Kaneko
CPC分类号： G10C5/005
摘要： A piano-like keyboard instrument allowing a player to perform in either an acoustic sound mode and or an electronic sound producing mode. In the electronic sound producing mode, a stopper blocks sets of piano strings from hammers and an electronic sound producing unit generates electronic sounds. A key touch is maintained in the electronic sound producing mode. A gap regulating unit changes gaps between the toes of jacks and regulating buttons, depending upon which mode of operation is selected. Hammer shanks rebound on the stopper after the escapes of the jacks.
摘要翻译： 一种钢琴般的键盘乐器，允许玩家以声音模式或电子声音产生模式进行演奏。 在电子声音产生模式中，止动器阻挡来自锤子的琴弦组，电子声音产生单元产生电子声音。 在电子声音产生模式中保持关键触摸。 间隙调节单元根据选择的操作模式改变千斤顶和调节按钮的脚趾之间的间隙。 千斤顶逃跑后，锤子在塞子上反弹。
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8.发明授权Keyboard musical instrument having key action mechanisms movable to and from strings 失效键盘乐器具有可从琴弦移出的键动作机构
公开(公告)号：US5591927A
公开(公告)日：1997-01-07
申请号：US140617
申请日：1993-10-22
CPC分类号： G10C5/005
摘要： A keyboard musical instrument allowing a player to perform using acoustic tones or electronic sounds is provided. The keyboard is movable between various positions, such as between a raised and a lowered position. In an electronic sound mode, the keyboard is lowered so as to increase a gap between hammer assemblies and associated strings. The keyboard is lowered using cams or lifters to pull down the keyboard so as to increase a gap between hammer assemblies and associated strings. In this mode, each hammer assembly rebounds on a stopper when a corresponding key is selected, thereby giving a desirable piano touch.
摘要翻译： 提供允许玩家执行声音或电子声音的键盘乐器。 键盘可在各种位置之间移动，例如在升高和降低位置之间。 在电子声音模式中，键盘被降低以便增加琴弦组件和相关琴弦之间的间隙。 使用凸轮或升降器降低键盘以拉下键盘，以增加锤组件和相关联的弦之间的间隙。 在这种模式中，当选择对应的键时，每个琴槌组件在制动器上弹回，从而给出期望的钢琴触感。
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9.发明授权Keyboard musical instrument with movable key bed for performing music without acoustic sounds 失效带有可移动键盘的键盘乐器，用于执行没有声音的音乐
公开(公告)号：US5545839A
公开(公告)日：1996-08-13
申请号：US343130
申请日：1994-11-22
申请人： Kiyoshi Kawamura , Toshio Tajima , Shinya Koseki
发明人： Kiyoshi Kawamura , Toshio Tajima , Shinya Koseki
摘要： A keyboard musical instrument lowers a key bed together with a keyboard, key action mechanisms and hammer mechanisms in a silent mode, and a stopper mechanism and a make-up mechanism cause the depressed keys to actuate the key action mechanisms and damper mechanisms as similar to an acoustic sound mode, thereby allowing a player to feel the key touch usual in a performance without an acoustic sound.
摘要翻译： 键盘乐器在键盘，键盘动作机构和锤击机构中以静音模式降低钥匙床，并且止动器机构和补充机构使得按下的键致动键动作机构和阻尼器机构，类似于 声音模式，从而允许玩家在没有声音的情况下感觉到通常的按键触摸。
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公开(公告)号：US5506369A
公开(公告)日：1996-04-09
申请号：US317345
申请日：1994-10-04
申请人： Kiyoshi Kawamura , Shinya Koseki
发明人： Kiyoshi Kawamura , Shinya Koseki
CPC分类号： G10F3/00
摘要： An electromagnetic actuator unit is provided over a keyboard of a piano, and each of the electromagnetic actuators of the electromagnetic actuator unit has a solenoid coil wound on a bobbin and a plunger for pushing down one of the keys, wherein the gravity exerted on the plunger is smaller than a recovery force of the key or a return spring coupled to the plunger is provided outside of the bobbin for smoothly moving the plunger without influences of the magnetic field produced by the solenoid coil.
摘要翻译： 电磁致动器单元设置在钢琴的键盘上，并且电磁致动器单元的每个电磁致动器具有卷绕在线轴上的螺线管线圈和用于按压其中一个键的柱塞，其中施加在柱塞上的重力 小于键的恢复力或联接到柱塞的复位弹簧设置在线轴外部，以在不影响螺线管线圈产生的磁场的情况下平滑地移动柱塞。
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