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1. 发明授权

US07268289B2 Musical instrument performing artistic visual expression and controlling system incorporated therein 有权
标题翻译：执行艺术视觉表达和控制系统的乐器并入其中
公开(公告)号：US07268289B2
公开(公告)日：2007-09-11
申请号：US11032190
申请日：2005-01-10
申请人： Shigeru Muramatsu , Yasuhiko Ohba , Yuji Fujiwara
发明人： Shigeru Muramatsu , Yasuhiko Ohba , Yuji Fujiwara
IPC分类号： G10H1/32
CPC分类号： G10H1/344 , G10F1/02 , G10H2230/011
摘要： A set of formation data codes, which includes action event codes and duration codes, is loaded in an automatic player piano, and a controller interprets the action event codes for driving the solenoid-operated key actuators; since the solenoid-operated key actuators slowly push the associated keys, the hammers do not reach the strings, and any piano tone is not produced; the plungers make the keys sunk to different depth so that the keys are laid on a artistic pattern; the controller sequentially changes the artistic pattern, and offers an artistic visual expression to the audience.
摘要翻译：包括动作事件代码和持续时间代码的一组地层数据代码被加载到自动演奏器钢琴中，并且控制器解释用于驱动电磁操作键致动器的动作事件代码; 由于电磁操作键执行器缓慢推动相关键，锤不到达琴弦，并且不产生任何钢琴音调; 柱塞使钥匙沉没到不同的深度，使钥匙放置在艺术图案上; 控制器依次改变艺术风格，为观众提供艺术视觉表现。

2. 发明申请

US20050150361A1 Musical instrument performing artistic visual expression and controlling system incorporated therein 有权
标题翻译：执行艺术视觉表达和控制系统的乐器并入其中
公开(公告)号：US20050150361A1
公开(公告)日：2005-07-14
申请号：US11032190
申请日：2005-01-10
申请人： Shigeru Muramatsu , Yasuhiko Ohba , Yuji Fujiwara
发明人： Shigeru Muramatsu , Yasuhiko Ohba , Yuji Fujiwara
IPC分类号： G10F1/02 , G10F1/06 , G10H1/00 , G10H1/34 , G10H7/00 , G10H1/02 , G01P3/00 , G10H5/00
CPC分类号： G10H1/344 , G10F1/02 , G10H2230/011
摘要： A set of formation data codes, which includes action event codes and duration codes, is loaded in an automatic player piano, and a controller interprets the action event codes for driving the solenoid-operated key actuators; since the solenoid-operated key actuators slowly push the associated keys, the hammers do not reach the strings, and any piano tone is not produced; the plungers make the keys sunk to different depth so that the keys are laid on a artistic pattern; the controller sequentially changes the artistic pattern, and offers an artistic visual expression to the audience.
摘要翻译：包括动作事件代码和持续时间代码的一组地层数据代码被加载到自动演奏器钢琴中，并且控制器解释用于驱动电磁操作键致动器的动作事件代码; 由于电磁操作键执行器缓慢推动相关键，锤不到达琴弦，并且不产生任何钢琴音调; 柱塞使钥匙沉没到不同的深度，使钥匙放置在艺术图案上; 控制器依次改变艺术风格，为观众提供艺术视觉表现。

3. 发明授权

US07238873B2 Automatic player musical instrument exactly reproducing performance and automatic player used therein 有权
标题翻译：自动播放器乐器正好再现演奏及其中使用的自动播放器
公开(公告)号：US07238873B2
公开(公告)日：2007-07-03
申请号：US11054412
申请日：2005-02-09
申请人： Yuji Fujiwara , Yasuhiko Ohba , Koichi Ishizaki
发明人： Yuji Fujiwara , Yasuhiko Ohba , Koichi Ishizaki
IPC分类号： G10H1/00
CPC分类号： G10F1/02
摘要： An automatic player piano is equipped with solenoid-operated pedal actuators for driving the pedals in a playback; since a large quantity of induction is coupled to the solenoid, the driving signal is delayed due to long time constant so that the pedals behave differently from those in the original performance; a controller, which is incorporated in the automatic player, firstly determines a target mean current of the driving signal to be theoretically required for the reproduction of the pedal motion, and a temporary means current twice as much as the target mean current at the maximum; the controller supplies the driving signal at the temporary mean current to the solenoid in an early stage of each cycle, and, thereafter, recovers the driving signal to the target mean current so that the pedal motion becomes close to that in the original performance.
摘要翻译：自动演奏器钢琴配备有用于在回放中驱动踏板的电磁操作踏板致动器; 由于大量的感应耦合到螺线管，驱动信号由于长时间常数而被延迟，使得踏板的行为与原始性能不同; 合并在自动播放器中的控制器首先确定理论上需要用于踏板运动的再现的驱动信号的目标平均电流以及最大值的目标平均电流的两倍的临时装置; 控制器在每个循环的早期阶段将临时平均电流的驱动信号提供给螺线管，然后将驱动信号恢复到目标平均电流，使得踏板运动变得接近原始性能。

4. 发明授权

US07202409B2 Musical instrument automatically performing music passage through hybrid feedback control loop containing plural sorts of sensors 有权
标题翻译：乐器通过包含多种传感器的混合反馈控制回路自动进行音乐通过
公开(公告)号：US07202409B2
公开(公告)日：2007-04-10
申请号：US11030548
申请日：2005-01-06
申请人： Yuji Fujiwara , Yasuhiko Ohba
发明人： Yuji Fujiwara , Yasuhiko Ohba
IPC分类号： G10H1/32 , G10H3/00
CPC分类号： G10F1/02 , G10H1/0066 , G10H1/344 , G10H2220/311 , G10H2230/011
摘要： An automatic player piano includes keys driven for the angular motion through a hybrid feedback control loop; a controller, a key position sensor, a plunger velocity sensor and a solenoid-operated key actuator form parts of the hybrid feedback control loop for each key, and a current key position and a plunger velocity are reported to the controller; the controller determines a series of target position or a reference trajectory and a target velocity, and periodically compares a composite current position and a composite current velocity, which are determined on the basis of the current key position and current plunger velocity, with the target position and target velocity to see whether or not the key travels on the reference trajectory; if the answer is negative, the controller adjusts the driving signal to a proper duty ratio so as to force the key to travel on the reference trajectory.
摘要翻译：自动演奏器钢琴包括通过混合反馈控制回路驱动角动作的键; 控制器，键位传感器，柱塞速度传感器和电磁操作键致动器构成每个键的混合反馈控制回路的一部分，并将当前键位置和柱塞速度报告给控制器; 控制器确定一系列目标位置或参考轨迹和目标速度，并且周期性地比较基于当前键位置和当前柱塞速度确定的复合当前位置和复合电流速度与目标位置和目标速度，以查看键是否在参考轨迹上行进; 如果答案为负，则控制器将驱动信号调整到适当的占空比，以迫使钥匙在参考轨迹上行进。

5. 发明申请

US20060016325A1 Musical instrument automatically performing music passage through hybrid feedback control loop containing plural sorts of sensors 有权
标题翻译：乐器通过包含多种传感器的混合反馈控制回路自动进行音乐通过
公开(公告)号：US20060016325A1
公开(公告)日：2006-01-26
申请号：US11030548
申请日：2005-01-06
申请人： Yuji Fujiwara , Yasuhiko Ohba
发明人： Yuji Fujiwara , Yasuhiko Ohba
IPC分类号： G10H3/00
CPC分类号： G10F1/02 , G10H1/0066 , G10H1/344 , G10H2220/311 , G10H2230/011
摘要： An automatic player piano includes keys driven for the angular motion through a hybrid feedback control loop; a controller, a key position sensor, a plunger velocity sensor and a solenoid-operated key actuator form parts of the hybrid feedback control loop for each key, and a current key position and a plunger velocity are reported to the controller; the controller determines a series of target position or a reference trajectory and a target velocity, and periodically compares a composite current position and a composite current velocity, which are determined on the basis of the current key position and current plunger velocity, with the target position and target velocity to see whether or not the key travels on the reference trajectory; if the answer is negative, the controller adjusts the driving signal to a proper duty ratio so as to force the key to travel on the reference trajectory.
摘要翻译：自动演奏器钢琴包括通过混合反馈控制回路驱动角动作的键; 控制器，键位传感器，柱塞速度传感器和电磁操作键致动器构成每个键的混合反馈控制回路的一部分，并将当前键位置和柱塞速度报告给控制器; 控制器确定一系列目标位置或参考轨迹和目标速度，并且周期性地比较基于当前键位置和当前柱塞速度确定的复合当前位置和复合电流速度与目标位置和目标速度，以查看键是否在参考轨迹上行进; 如果答案为负，则控制器将驱动信号调整到适当的占空比，以迫使钥匙在参考轨迹上行进。

6. 发明申请

US20050211049A1 Automatic player musical instrument exactly reproducing performance and automatic player used therein 有权
标题翻译：自动播放器乐器正好再现演奏及其中使用的自动播放器
公开(公告)号：US20050211049A1
公开(公告)日：2005-09-29
申请号：US11054412
申请日：2005-02-09
申请人： Yuji Fujiwara , Yasuhiko Ohba , Koichi Ishizaki
发明人： Yuji Fujiwara , Yasuhiko Ohba , Koichi Ishizaki
IPC分类号： G10F1/02 , G11B7/00
CPC分类号： G10F1/02
摘要： An automatic player piano is equipped with solenoid-operated pedal actuators for driving the pedals in a playback; since a large quantity of induction is coupled to the solenoid, the driving signal is delayed due to long time constant so that the pedals behave differently from those in the original performance; a controller, which is incorporated in the automatic player, firstly determines a target mean current of the driving signal to be theoretically required for the reproduction of the pedal motion, and a temporary means current twice as much as the target mean current at the maximum; the controller supplies the driving signal at the temporary mean current to the solenoid in an early stage of each cycle, and, thereafter, recovers the driving signal to the target mean current so that the pedal motion becomes close to that in the original performance.
摘要翻译：自动演奏器钢琴配备有用于在回放中驱动踏板的电磁操作踏板致动器; 由于大量的感应耦合到螺线管，驱动信号由于长时间常数而被延迟，使得踏板的行为与原始性能不同; 合并在自动播放器中的控制器首先确定理论上需要用于踏板运动的再现的驱动信号的目标平均电流以及最大值的目标平均电流的两倍的临时装置; 控制器在每个循环的早期阶段将临时平均电流的驱动信号提供给螺线管，然后将驱动信号恢复到目标平均电流，使得踏板运动变得接近原始性能。

7. 发明授权

US4469000A Solenoid driving apparatus for actuating key of player piano 失效
标题翻译：用于启动钢琴琴键的电磁驱动装置
公开(公告)号：US4469000A
公开(公告)日：1984-09-04
申请号：US443435
申请日：1982-11-22
申请人： Yuji Fujiwara , Shigeru Muramatsu , Mitsuhiko Mori , Takamichi Sawase
发明人： Yuji Fujiwara , Shigeru Muramatsu , Mitsuhiko Mori , Takamichi Sawase
IPC分类号： G10H1/00 , G10F1/02 , G10F5/00
CPC分类号： G10F1/02 , Y10S84/07
摘要： A solenoid driving apparatus for actuating keys of a player piano is provided in which respective key striking strength data can be applied to respective solenoids of keys, so that musical tones can be reproduced correctly and in which the key striking strength data at the time of musical performance can be compensated for high fidelity reproduction. The solenoid driving apparatus includes a plurality of keys and solenoids provided on each key. When a key is depressed, a first key striking strength data corresponding to key striking strength and a data designating the depressed key are generated. The first key striking strength data is then converted into a second key striking strength data so as to make the latter data in linear proportion to an operating or response speed of the solenoid. In accordance with the second key striking strength data, a solenoid driving data is generated, and is applied to the solenoid corresponding to the key designated by the designating data. The solenoid driving data thus converted from the second key striking strength data causes musical tones to be reproduced as having correct timings and high fidelity.
摘要翻译：提供一种用于驱动演奏者钢琴的琴键的螺线管驱动装置，其中可以将各个按键强度数据应用于键的相应螺线管，从而可以正确地再现乐音，并且其中音乐时的键击强度数据性能可以补偿高保真度再现。螺线管驱动装置包括设置在每个键上的多个键和螺线管。当按下键时，产生对应于键击强度的第一键击数强度数据和指定按下的键的数据。然后将第一关键击打强度数据转换成第二击打强度数据，以使后一数据与螺线管的操作或响应速度成线性比例。根据第二击打强度数据，产生螺线管驱动数据，并且被施加到对应于由指定数据指定的键的螺线管。从第二键击打强度数据转换出的螺线管驱动数据使音乐被再现为具有正确的定时和高保真度。

8. 发明授权

US5652399A Automatic player piano and estimator for acceleration of depressed key incorporated in the automatic player piano 失效
标题翻译：自动播放器钢琴和估计器，用于加速自动演奏器钢琴中的按键
公开(公告)号：US5652399A
公开(公告)日：1997-07-29
申请号：US673016
申请日：1996-06-28
申请人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba , Shigeru Muramatsu , Yoshimasa Isozaki , Jun Ishii
发明人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba , Shigeru Muramatsu , Yoshimasa Isozaki , Jun Ishii
IPC分类号： G10F1/02
CPC分类号： G10F1/02 , Y10S84/07
摘要： An automatic player piano controls keys to be rotated by solenoid-operated actuator units in such a manner as to pass a reference point on a trajectory of the key at a reference velocity in a playback mode, and a hammer driven by the depressed key strikes strings at the same intensity as that in a recording mode, because the intensity is variable with the reference velocity at the reference point.
摘要翻译：自动演奏器钢琴控制按电磁操作的致动器单元旋转的键，以便以回放模式中的基准速度将键的轨迹上的参考点通过，并且由按下的键驱动的琴弦撞击琴弦以与记录模式相同的强度，因为强度随参考点处的参考速度而变化。

9. 发明授权

US4513652A Solenoid actuator for use in automatic performance piano 失效
标题翻译：电磁执行器用于自动演奏钢琴
公开(公告)号：US4513652A
公开(公告)日：1985-04-30
申请号：US409071
申请日：1982-08-18
申请人： Shigeru Muramatsu , Yuji Fujiwara , Hazime Hayashida , Jun Yamamoto
发明人： Shigeru Muramatsu , Yuji Fujiwara , Hazime Hayashida , Jun Yamamoto
IPC分类号： G10C3/20 , G10F1/02 , G10F3/00
CPC分类号： G10C3/20 , G10F1/02
摘要： In a solenoid actuator for use in an automatic performance keyboard instrument of the type comprising a key bed and a plurality of keys mounted on the key bed through seesaw mechanisms, electromagnetic actuators respectively corresponding to the keys and having a common yoke are disposed between the key bed and the keys. Each of the electromagnetic actuators independently actuates the corresponding key. The yoke and the electromagnetic actuators are assembled into a compact unit, thereby being readily incorporated between the key bed and the keys.
摘要翻译：在用于自动演奏键盘乐器的螺线管致动器中，包括按键床和通过跷跷板机构安装在键盘上的多个键，分别对应于键并具有公共轭的电磁致动器设置在键床和钥匙。每个电磁致动器独立地驱动相应的键。轭和电磁致动器被组装成紧凑的单元，从而容易地结合在钥匙床和钥匙之间。

10. 发明授权

US06359207B1 POSITION TRANSDUCER SYSTEM WITH BUILT-IN CALIBRATOR FOR MOVING OBJECT, METHOD FOR ACCURATELY DETERMINING POSITION OF MOVING OBJECT AND KEYBOARD MUSICAL INSTRUMENT EQUIPPED WITH THE POSITION TRANSDUCER SYSTEM 有权
标题翻译：具有用于移动对象的内置校准器的位置传感器系统，用于精确地确定移动对象的位置的方法和配备有位置传感器系统的键盘音乐仪器
公开(公告)号：US06359207B1
公开(公告)日：2002-03-19
申请号：US09421860
申请日：1999-10-20
申请人： Yasuhiko Oba , Yuji Fujiwara , Tsutomu Sasaki , Shigeru Muramatsu
发明人： Yasuhiko Oba , Yuji Fujiwara , Tsutomu Sasaki , Shigeru Muramatsu
IPC分类号： G10H500
CPC分类号： G10H1/0033 , G10G3/04 , G10H1/344 , G10H2220/305
摘要： A silent automatic player piano calibrates the black/white keys so as to exactly relate a key position signal to the current key positions on the trajectory of the key by itself before a recording so that the key motions are exactly recognized in a recording operation by the silent automatic player piano.
摘要翻译：无声自动播放器钢琴校准黑/白键，以便在记录之前将键位置信号与键的轨迹上的当前键位置精确地相关联，使得在通过记录操作的记录操作中精确地识别关键运动沉默自动播放器钢琴。

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