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1. 发明授权

US5731530A Automatic player piano exactly reproducing special touches 失效
标题翻译：自动播放器钢琴正好重现特别的触感
公开(公告)号：US5731530A
公开(公告)日：1998-03-24
申请号：US743951
申请日：1996-11-05
申请人： Yuji Fujiwara , Rei Furukawa , Yasuhiko Oba
发明人： Yuji Fujiwara , Rei Furukawa , Yasuhiko Oba
IPC分类号： G10H1/00 , G10F1/02 , G10H1/34
CPC分类号： G10F1/02
摘要： An automatic player piano records not only regular key-on event/impact event/regular key-off event representative of a regular key motion between a rest position and an end position but also irregular key-on event/irregular key-off event representative of an irregular key motion changing the direction at an intermediate point between the rest position and the end position so as to exactly reproduce an original performance.
摘要翻译：自动播放器钢琴不仅记录表示休息位置和结束位置之间的常规键移动的常规按键事件/影响事件/常规关闭事件，而且还记录代表静止位置和结束位置的不规则按键事件/不规则键断事件一个不规则的关键运动改变在静止位置和结束位置之间的中间点处的方向，以便准确地再现原始的表现。

2. 发明授权

US06800799B2 Recorder, method for recording music, player, method for reproducing the music and system for ensemble on the basis of music data codes differently formatted 失效
标题翻译：记录器，用于录制音乐的播放器，播放器，再现音乐的方法以及基于不同格式化的音乐数据代码的系统的系统
公开(公告)号：US06800799B2
公开(公告)日：2004-10-05
申请号：US10383810
申请日：2003-03-07
申请人： Yuji Fujiwara , Rei Furukawa
发明人： Yuji Fujiwara , Rei Furukawa
IPC分类号： G10H700
CPC分类号： G10H1/0041 , G10H2240/031 , G10H2240/056
摘要： A user records a part of a piece of music performed on the composite audio system into and reproduces the performance from a floppy disc in ensemble with another part of the piece of music; while a compact disc player is producing an audio signal from audio data codes, the composite audio system produces event codes representative of local peaks in the audio signal for timing control, and stores these event codes together with event codes representative of note events and duration data codes in the floppy disc; while the composite audio system and compact disc player are reproducing the parts of the piece of music, the time intervals among the tones are prolonged and shrunk by using the event codes for timing control and actual local peaks so that the tones in one of the parts are produced synchronously with the tones of the other part.
摘要翻译：用户将在复合音频系统上执行的一段音乐的一部分记录在与该音乐片段的另一部分组合的软盘中再现演奏; 当光盘播放器从音频数据代码产生音频信号时，复合音频系统产生表示用于定时控制的音频信号中局部峰值的事件代码，并将这些事件代码与表示音符事件和持续时间数据的事件代码一起存储软盘中的代码; 而复合音频系统和光盘播放器正在再现这段音乐的部分，通过使用用于定时控制的事件代码和实际的局部峰值来延长和缩小音调之间的时间间隔，使得在其中一个部分中的音调与其他部分的色调同步产生。

3. 发明申请

US20090084248A1 MUSIC PERFORMANCE SYSTEM FOR MUSIC SESSION AND COMPONENT MUSICAL INSTRUMENTS 有权
标题翻译：用于音乐会和音乐音乐仪器的音乐表演系统
公开(公告)号：US20090084248A1
公开(公告)日：2009-04-02
申请号：US12203191
申请日：2008-09-03
申请人： Rei FURUKAWA , Yuji Fujiwara
发明人： Rei FURUKAWA , Yuji Fujiwara
IPC分类号： G10H7/00
CPC分类号： G10H1/0058 , G10H1/344 , G10H2230/011 , G10H2240/175
摘要： Automatic player pianos and internet form a music performance system for a music session on the automatic player pianos through data communication between the automatic player pianos, and a communication time lag and mechanical time lag are unavoidably introduced between the data transmission and the data reception and between the data reception and tone generation; one of or both of the time lags are compensated by employment of an electronic tone generation, presumption of key positions or presumption of key event so that the slave automatic player piano generates the tones almost concurrently with the tones generated through the master automatic player piano.
摘要翻译：自动播放器钢琴和互联网通过自动演奏器钢琴之间的数据通信形成用于自动演奏器钢琴上的音乐会话的音乐表演系统，并且在数据传输和数据接收之间不可避免地引入通信时滞和机械时滞，并且在数据传输和数据接收之间以及数据接收和音调生成; 时间滞后中的一个或两者通过使用电子音调生成，推定键位置或推定键事件来补偿，使得从机自动演奏器钢琴与通过主自动演奏器钢琴产生的音调几乎同时地产生音调。

4. 发明授权

US5627333A Keyboard musical instrument equipped with built-in distance measuring instrument for hammer sensors 失效
标题翻译：键盘乐器配有内置距离测量仪器，用于锤式传感器
公开(公告)号：US5627333A
公开(公告)日：1997-05-06
申请号：US654563
申请日：1996-05-29
申请人： Wayne L. Stahnke , Yuji Fujiwara , Taro Kawabata , Rei Furukawa , Takashi Tamaki
发明人： Wayne L. Stahnke , Yuji Fujiwara , Taro Kawabata , Rei Furukawa , Takashi Tamaki
IPC分类号： G10G3/04
CPC分类号： G10G3/04
摘要： A hammer sensor incorporated in a keyboard musical instrument monitors a motion of each hammer assembly, and a controller not only determines a hammer velocity and an impact time for generating a set of music data codes representative of a music performance but also measures an actual distance between the hammer sensor and an impact point against a music string on the basis of a forward trajectory and a backward trajectory measured by the hammer sensor; thereby allowing a worker to easily adjust the hammer sensor to an appropriate position.
摘要翻译：组合在键盘乐器中的锤式传感器监测每个琴槌组件的运动，并且控制器不仅确定用于产生代表音乐表演的一组音乐数据代码的琴槌速度和冲击时间，而且还测量基于由锤传感器测量的向前轨迹和后向轨迹，对锤音传感器和对音乐弦的撞击点; 从而允许工人容易地将锤传感器调节到适当的位置。

5. 发明授权

US07902449B2 Music performance system for music session and component musical instruments 有权
标题翻译：音乐表演系统，音乐会和乐器组合
公开(公告)号：US07902449B2
公开(公告)日：2011-03-08
申请号：US12249361
申请日：2008-10-10
申请人： Rei Furukawa , Yuji Fujiwara
发明人： Rei Furukawa , Yuji Fujiwara
IPC分类号： G10H7/00
CPC分类号： G10H1/0066 , G10H2230/011 , G10H2240/175
摘要： While a player is selectively depressing and releasing keys of a master musical instrument, the real key movements are expressed by pieces of key motion data, and physical quantity of keys are presumed at a time later than the present time by a time period equal to communication time lag on the key trajectories determined on the basis of the pieces of key motion data; the presumed physical quantity is transmitted to a slave musical instrument through the internet, and the key movements are reproduced on the basis of the presumed physical quantity so that the performance on the master musical instrument is synchronized with that on the slave musical instrument.
摘要翻译：当玩家选择性地按压和释放主乐器的键时，真正的键移动由多个键运动数据表示，并且键的物理量在比当前时间晚的时间推定等于通信的时间段基于关键运动数据确定的关键轨迹的时滞; 假设的物理量通过因特网传送到从属乐器，并且基于所推测的物理量再现钥匙运动，使得主乐器的演奏与从属乐器上的演奏同步。

6. 发明申请

US20090100979A1 MUSIC PERFORMANCE SYSTEM FOR MUSIC SESSION AND COMPONENT MUSICAL INSTRUMENTS 有权
标题翻译：用于音乐会和音乐音乐仪器的音乐表演系统
公开(公告)号：US20090100979A1
公开(公告)日：2009-04-23
申请号：US12249361
申请日：2008-10-10
申请人： Rei Furukawa , Yuji Fujiwara
发明人： Rei Furukawa , Yuji Fujiwara
IPC分类号： G10F1/02
CPC分类号： G10H1/0066 , G10H2230/011 , G10H2240/175
摘要： While a player is selectively depressing and releasing keys of a master musical instrument, the real key movements are expressed by pieces of key motion data, and physical quantity of keys are presumed at a time later than the present time by a time period equal to communication time lag on the key trajectories determined on the basis of the pieces of key motion data; the presumed physical quantity is transmitted to a slave musical instrument through the internet, and the key movements are reproduced on the basis of the presumed physical quantity so that the performance on the master musical instrument is synchronized with that on the slave musical instrument.
摘要翻译：当玩家选择性地按压和释放主乐器的键时，真正的键移动由多个键运动数据表示，并且键的物理量在比当前时间晚的时间推定等于通信的时间段基于关键运动数据确定的关键轨迹的时滞; 假设的物理量通过因特网传送到从属乐器，并且基于所推测的物理量再现钥匙运动，使得主乐器的演奏与从属乐器上的演奏同步。

7. 发明授权

US07820902B2 Music performance system for music session and component musical instruments 有权
标题翻译：音乐表演系统，音乐会和乐器组合
公开(公告)号：US07820902B2
公开(公告)日：2010-10-26
申请号：US12203191
申请日：2008-09-03
申请人： Rei Furukawa , Yuji Fujiwara
发明人： Rei Furukawa , Yuji Fujiwara
IPC分类号： G10H7/00
CPC分类号： G10H1/0058 , G10H1/344 , G10H2230/011 , G10H2240/175
摘要： Automatic player pianos and internet form a music performance system for a music session on the automatic player pianos through data communication between the automatic player pianos, and a communication time lag and mechanical time lag are unavoidably introduced between the data transmission and the data reception and between the data reception and tone generation; one of or both of the time lags are compensated by employment of an electronic tone generation, presumption of key positions or presumption of key event so that the slave automatic player piano generates the tones almost concurrently with the tones generated through the master automatic player piano.
摘要翻译：自动播放器钢琴和互联网通过自动演奏器钢琴之间的数据通信形成用于自动演奏器钢琴上的音乐会话的音乐表演系统，并且在数据传输和数据接收之间不可避免地引入通信时滞和机械时滞，并且在数据传输和数据接收之间以及数据接收和音调生成; 时间滞后中的一个或两者通过使用电子音调生成，推定键位置或推定键事件来补偿，使得从机自动演奏器钢琴与通过主自动演奏器钢琴产生的音调几乎同时地产生音调。

8. 发明授权

US5978201A Design for solenoid driving circuit based on regulations of current ripple and solenoid effective time constant for driving keys of a player piano 失效
标题翻译：根据电流纹波和电磁线圈有效时间常数规定的电磁阀驱动电路的设计，用于驾驶演奏者钢琴的钥匙
公开(公告)号：US5978201A
公开(公告)日：1999-11-02
申请号：US12063
申请日：1998-01-22
申请人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba
发明人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba
IPC分类号： G10F1/02 , G10C3/20 , G10H1/00 , H01H47/32 , H01H47/22
CPC分类号： G10C3/20 , H01H47/325
摘要： A solenoid driving circuit contains solenoids, each of which is driven to produce a magnetic field for driving each of keys of a player piano. A NPN transistor is provided to allow or block a flow of current across each solenoid. The solenoid is connected between a DC power source for providing a source voltage and a collector of the NPN transistor whose emitter is grounded. A drive signal, which is subjected to pulse-width modulation, is supplied to a base of the NPN transistor, so that the NPN transistor is switched over between ON and OFF. A diode is introduced to provide prescribed forward voltage for attenuation of the current across the solenoid when the NPN transistor is turned OFF. Herein, an anode of the diode is connected to a connection between the solenoid and NPN transistor, while a cathode of the diode is connected to a cathode of a zener diode having prescribed reverse voltage. An anode of the zener diode is connected to the DC power source. An effective time constant of the solenoid is represented in a mathematical form using the forward voltage, reverse voltage and source voltage as well as a real time constant of the solenoid. So, the solenoid driving circuit designed in such a way that the effective time constant of the solenoid is sufficiently small as compared to a maximum value of an operating frequency of the key of the player piano (i.e., action cutoff frequency of the player piano).
摘要翻译：螺线管驱动电路包括螺线管，每个螺线管被驱动以产生用于驱动演奏者钢琴的每个键的磁场。提供NPN晶体管以允许或阻止跨越每个螺线管的电流。螺线管连接在用于提供源极电压的直流电源和发射极接地的NPN晶体管的集电极之间。经受脉冲宽度调制的驱动信号被提供给NPN晶体管的基极，使得NPN晶体管在导通和截止之间切换。当NPN晶体管截止时，引入二极管以提供规定的正向电压，以减小电磁线圈上的电流。这里，二极管的阳极连接到螺线管和NPN晶体管之间的连接，而二极管的阴极连接到具有规定的反向电压的齐纳二极管的阴极。齐纳二极管的阳极连接到直流电源。使用正向电压，反向电压和电源电压以及螺线管的实时常数以数学形式表示螺线管的有效时间常数。因此，螺线管驱动电路设计成使得螺线管的有效时间常数与演奏者钢琴的键的操作频率的最大值（即，演奏者钢琴的动作截止频率）相比足够小，。

9. 发明申请

US20050132871A1 Performance operator control apparatus 有权
标题翻译：性能操作员控制装置
公开(公告)号：US20050132871A1
公开(公告)日：2005-06-23
申请号：US11010445
申请日：2004-12-14
申请人： Yasuhiko Oba , Yuji Fujiwara , Tomoyuki Ura , Tadaharu Kato
发明人： Yasuhiko Oba , Yuji Fujiwara , Tomoyuki Ura , Tadaharu Kato
IPC分类号： G10F1/02 , G10H1/00 , G10H1/32
CPC分类号： G10F1/02 , G10H1/0058 , G10H2240/056
摘要： A performance operator control apparatus adapted to a player piano comprises a motion control unit and a key drive unit comprising a plurality of key I/O control ICs in connection with keys of a keyboard, which are driven by solenoids so as to realize automatic performance, wherein upon detection of electrification abnormality of solenoids or temperature abnormality, LEDs are turned on to indicate the abnormality. The key I/O control ICs receive velocity signals regarding the solenoids so as to perform feedback controls on the keys in the automatic performance. In addition, unoccupied channels of the key I/O control ICs, which are not assigned to the keys and sensors, are used to input monitoring signals and to output inspection signals. Herein, the abnormality is determined based on the difference between pre-inspection data and post-inspection data, which are transferred using a loop connection channel of the key I/O control IC.
摘要翻译：适用于演奏器钢琴的演奏操作员控制装置包括运动控制单元和键驱动单元，其包括与键盘的键相关联的多个键I / O控制IC，所述键由螺线管驱动以实现自动演奏，其中，在检测到螺线管的通电异常或者温度异常时，LED点亮以指示异常。关键的I / O控制IC接收关于螺线管的速度信号，以便在自动演奏中对键执行反馈控制。此外，未分配给键和传感器的关键I / O控制IC的未占用通道用于输入监控信号并输出检查信号。这里，基于使用密钥I / O控制IC的环路连接信道传送的检查前数据和检查后数据之间的差异来确定异常。

10. 发明授权

US5739450A Keyboard musical instrument equipped with dummy key/hammer event supplementing system 失效
标题翻译：键盘乐器配有虚拟钥匙/锤子事件补充系统
公开(公告)号：US5739450A
公开(公告)日：1998-04-14
申请号：US407771
申请日：1995-03-21
申请人： Yuji Fujiwara , Taro Kawabata , Yoshimasa Isozaki , Yasuhiko Oba
发明人： Yuji Fujiwara , Taro Kawabata , Yoshimasa Isozaki , Yasuhiko Oba
IPC分类号： G10F1/02 , G10G3/04
CPC分类号： G10G3/04 , G10F1/02
摘要： An automatic player piano records an original key motion reciprocated between a rest position and an end position as a series of a key-on event, a hammer event and a key-off event by using key/hammer sensors, and supplements the key/hammer event for an unusual key motion such as a half stroke, thereby faithfully reproducing the original key motions in a playback mode.
摘要翻译：自动播放器钢琴通过使用键/锤传感器记录在静止位置和结束位置之间往复运动的原始键运动，作为键盘事件，锤子事件和钥匙事件的一系列，并且补充键/锤用于诸如半冲程的异常键运动的事件，从而忠实地在重放模式中再现原始键运动。

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