公开(公告)号：US20120255425A1

公开(公告)日：2012-10-11

申请号：US13439291

申请日：2012-04-04

申请人： Yasuhiko Oba ,  Akinori Kanehara

发明人： Yasuhiko Oba ,  Akinori Kanehara

IPC分类号： G10C3/26

CPC分类号： G10H1/348 ,  G10H2220/311

摘要： A keyboard musical instrument, including: keys; a pedal; an input portion configured to input performance data including tone generation control data that specifies generation and halt of a musical tone and pedal control data that specifies a depression depth of the pedal; a drive portion configured to drive the pedal; and a controller configured to control the drive portion on the basis of the pedal control data in the performance data inputted by the input portion, wherein the controller is configured to control the drive portion such that, where the depression depth of the pedal exceeds a first depth by controlling the drive portion, the pedal is located at a third depth that is shallower than a second depth after the pedal has reached the second depth that is deeper than the first depth.

摘要翻译： 键盘乐器，包括：钥匙; 踏板 输入部，被配置为输入包括音调生成控制数据的演奏数据，所述音调生成控制数据指定音乐的生成和停止;以及指定踏板的按压深度的踏板控制数据; 构造成驱动踏板的驱动部; 以及控制器，其被配置为基于由所述输入部输入的演奏数据中的踏板控制数据来控制所述驱动部，其中，所述控制器被配置为控制所述驱动部，使得在所述踏板的所述凹陷深度超过所述第一 通过控制驱动部分的深度，在踏板达到比第一深度更深的第二深度之后，踏板位于比第二深度浅的第三深度。

公开(公告)号：US08546679B2

公开(公告)日：2013-10-01

申请号：US13439291

申请日：2012-04-04

申请人： Yasuhiko Oba ,  Akinori Kanehara

发明人： Yasuhiko Oba ,  Akinori Kanehara

IPC分类号： G10H1/32 ,  G10H3/00

CPC分类号： G10H1/348 ,  G10H2220/311

摘要： A keyboard musical instrument, including: keys; a pedal; an input portion configured to input performance data including tone generation control data that specifies generation and halt of a musical tone and pedal control data that specifies a depression depth of the pedal; a drive portion configured to drive the pedal; and a controller configured to control the drive portion on the basis of the pedal control data in the performance data inputted by the input portion, wherein the controller is configured to control the drive portion such that, where the depression depth of the pedal exceeds a first depth by controlling the drive portion, the pedal is located at a third depth that is shallower than a second depth after the pedal has reached the second depth that is deeper than the first depth.

摘要翻译： 键盘乐器，包括：钥匙; 踏板 输入部，被配置为输入包括音调生成控制数据的演奏数据，所述音调生成控制数据指定音乐的生成和停止;以及指定踏板的按压深度的踏板控制数据; 构造成驱动踏板的驱动部; 以及控制器，其被配置为基于由所述输入部输入的演奏数据中的踏板控制数据来控制所述驱动部，其中，所述控制器被配置为控制所述驱动部，使得在所述踏板的所述凹陷深度超过所述第一 通过控制驱动部分的深度，在踏板达到比第一深度更深的第二深度之后，踏板位于比第二深度浅的第三深度。

公开(公告)号：US06051762A

公开(公告)日：2000-04-18

申请号：US26537

申请日：1998-02-19

申请人： Yuji Fujiwara ,  Yasuhiko Oba

发明人： Yuji Fujiwara ,  Yasuhiko Oba

IPC分类号： G10F1/02 ,  G10G3/04 ,  G10H1/00 ,  G01F1/02 ,  G01F3/04 ,  G01F5/00

CPC分类号： G10G3/04 ,  G10F1/02 ,  Y10S84/07

摘要： An ideal automatic player piano is assumed to reproduce an original performance from fundamental data representative of a fundamental forward key trajectory and a backward key trajectory; however, if an actual automatic player piano reproduces a forward key trajectory and a backward key trajectory on the basis of the fundamental data, the forward key trajectory and the backward key trajectory do not faithfully reproduce the original key motions; for this reason, the actual automatic player piano learns first offset time at the end position and second offset time at an intermediate position between the end position and the rest position so as to determine a virtual forward key trajectory and a virtual backward key trajectory, and further learns first dead time around the rest position and second dead time around the rest position so as to exactly determining first starting time at the rest position and a second starting time at the end position, thereby moving keys along composite forward/backward trajectories for imparting a final hammer velocity to a hammer associated with the key to be moved in playback.

摘要翻译： 假设一个理想的自动演奏器钢琴从表示基本正向键轨迹和向后键轨迹的基本数据中再现原始演奏; 然而，如果实际的自动播放器钢琴基于基础数据再现前向键轨迹和向后键轨迹，则前向键轨迹和向后键轨迹不忠实地再现原始键运动; 为此，实际的自动演奏钢琴在终点位置和静止位置之间的中间位置处在结束位置和第二偏移时间学习第一偏移时间，以便确定虚拟向前键轨迹和虚拟向后键轨迹，以及 进一步学习围绕静止位置的第一死区时间和围绕静止位置的第二死区时间，从而准确地确定在静止位置处的第一开始时间和在结束位置处的第二开始时间，从而沿着复合的前向/后向轨迹移动键以传递 锤子的最终锤速度与与要在播放中移动的键相关联的锤子。

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， 。

公开(公告)号：US20050235808A1

公开(公告)日：2005-10-27

申请号：US11107795

申请日：2005-04-18

申请人： Jun Ishii ,  Yasuhiko Oba

发明人： Jun Ishii ,  Yasuhiko Oba

IPC分类号： A63H5/00 ,  G04B13/00 ,  G10F1/02 ,  G10H1/00 ,  G10H7/00

CPC分类号： G10F1/02

摘要： A musical performance apparatus has an I/O unit including a digital signal processor (DSP) and a plurality of application-specific integrated circuits (ASIC), which are connected together in a cascade connection manner and each of which includes a plurality of shift registers. The DSP produces drive signals for driving a plurality of operators (e.g., keys and pedals) based on performance data. In synchronization with a serial clock signal, drive signals are transferred in a serial manner from the DSP to the shift registers. In synchronization with a word sync signal based on the serial clock signal, detection signals representing displacements of the operators are transferred in parallel to the shift registers, which in turn output drive signals in parallel. Both of the serial clock signal and word sync signal are produced using a single clock generator.

摘要翻译： 音乐演奏装置具有包括数字信号处理器（DSP）和多个专用集成电路（ASIC）的I / O单元，其以级联方式连接在一起，并且每个包括多个移位寄存器 。 DSP基于性能数据产生用于驱动多个操作者（例如，键和踏板）的驱动信号。 与串行时钟信号同步，驱动信号以串行方式从DSP传输到移位寄存器。 与基于串行时钟信号的字同步信号同步，表示操作者的位移的检测信号并行传送到移位寄存器，移位寄存器又并联输出驱动信号。 串行时钟信号和字同步信号均使用单个时钟发生器产生。

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。

公开(公告)号：US06403872B2

公开(公告)日：2002-06-11

申请号：US09737615

申请日：2000-12-13

申请人： Shigeru Muramatsu ,  Yasuhiko Oba ,  Tadaharu Kato ,  Kiyoshi Kawamura

发明人： Shigeru Muramatsu ,  Yasuhiko Oba ,  Tadaharu Kato ,  Kiyoshi Kawamura

IPC分类号： G10H306

CPC分类号： G10H1/346 ,  G01P3/36 ,  G10F1/02 ,  G10G3/04 ,  G10H2220/305

摘要： An automatic player piano is an acoustic piano equipped with a data acquisition system and a playback system, and the data acquisition system monitors the hammers with hammer sensors for producing a set of music data codes representative of a performance on the keyboard, wherein the hammer sensor has a detectable range over the trajectory of the associated hammer so that the data acquisition system obtains pieces of music data accurately representative of the trajectory of hammer to be required for a faithful reproduction of the original performance.

摘要翻译： 自动演奏器钢琴是配备有数据采集系统和回放系统的原声钢琴，数据采集系统用锤传感器监测锤子，用于产生代表键盘性能的一组音乐数据代码，其中锤传感器 在相关联的锤的轨迹上具有可检测范围，使得数据采集系统获得准确代表为了忠实地再现原始性能而需要的锤的轨迹的音乐数据片段。

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。

公开(公告)号：US5691489A

公开(公告)日：1997-11-25

申请号：US712962

申请日：1996-09-12

申请人： Yuji Fujiwara ,  Yasuhiko Oba ,  Jun Yamamoto

发明人： Yuji Fujiwara ,  Yasuhiko Oba ,  Jun Yamamoto

IPC分类号： G10H1/00 ,  G10C3/16 ,  G10F1/02 ,  G10F5/02 ,  G10G3/04

CPC分类号： G10F1/02 ,  G10C3/161

摘要： An automatic player piano controls a solenoid-operated key actuator so as to move a key along a quadratic curve around a turning point where the key changes the direction of the motion, and the solenoid-operated key actuator faithfully reproduce a half stroke key motion.

摘要翻译： 自动演奏器钢琴控制电磁操作的键致动器，以沿着键转动运动方向的转折点沿着二次曲线移动键，并且电磁操作键致动器忠实地再现半冲程键运动。

公开(公告)号：US5072644A

公开(公告)日：1991-12-17

申请号：US557381

申请日：1990-07-24

申请人： Yoshimasa Isozaki ,  Yasuhiko Oba

发明人： Yoshimasa Isozaki ,  Yasuhiko Oba

IPC分类号： G10F1/02 ,  G10G3/04 ,  G10H1/00 ,  G10H1/20

CPC分类号： G10G3/04 ,  G10F1/02 ,  G10H1/0041 ,  G10H1/20

摘要： A synthetic recording device in an automatic performance piano includes a key range setting circuit for setting a range of keys in which record performance information is to be generated, a transposition circuit for transposing, when playback performance information read from a memory corresponds to a key within this key range, the playback performance information by a predetermined amount of transposition, a piano performance unit for performing playback in response to the transposed playback performance information, a selection circuit for selecting key operation information corresponding to a key in the key range set by the key range setting circuit and outputting the selected information as record performance information, a delay circuit for delaying the playback performance information by a predetermined period of time, and a synthetic recording circuit for synthesizing the delayed playback performance information and the record performance information and providing the synthesized information to be stored in the memory. An optimum transposition is automatically made by a simple operation by a performer for designating the key range in which record performance information is to be generated and a record part and a playback part in the keyboard can be clearly distinguished from each other.

摘要翻译： 自动演奏钢琴中的合成记录装置包括：用于设置要产生记录演奏信息的琴键的范围的按键范围设置电路，当从存储器读取的再现演奏信息对应于内部的琴键时，用于转置的换位电路 该键范围，通过预定量的转置的播放性能信息，用于响应于转置的播放性能信息执行回放的钢琴演奏单元，选择电路，用于选择与由所设置的键设置的键范围中的键对应的键操作信息 键区范围设定电路，输出所选择的信息作为记录演奏信息;延迟电路，用于将播放性能信息延迟预定的时间;以及合成记录电路，用于合成延迟播放性能信息和记录演奏信息， 合成 d信息存储在存储器中。 通过执行者的简单操作自动进行最佳的转置，用于指定要产生记录演奏信息的关键范围，并且键盘中的记录部分和重放部分可以彼此清楚地区分开。