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。

公开(公告)号：USD630972S1

公开(公告)日：2011-01-18

申请号：US29367273

申请日：2010-08-05

申请人： Yuji Fujiwara ,  Tatsuya Takei ,  Kazumi Kitazumi

设计人： Yuji Fujiwara ,  Tatsuya Takei ,  Kazumi Kitazumi

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。

公开(公告)号：US07473841B2

公开(公告)日：2009-01-06

申请号：US11343848

申请日：2006-01-31

申请人： Yuji Fujiwara

发明人： Yuji Fujiwara

IPC分类号： G10F1/02

CPC分类号： G10H1/346 ,  G10F1/02 ,  G10H2220/305 ,  G10H2220/311

摘要： A servo controller of an automatic player piano normalizes an actual key position to a value less than a reference value indicative of a target stop on a reference trajectory when the key is found in a region immediately before the target stop and to another value greater than the reference value when the key exceeds the target stop, and adjusts a driving signal to a proper value in such a manner that a solenoid-operated key actuator minimizes the difference between the value or another value and the reference value, whereby the servo controller keeps the key in a narrow region on both sides of the target stop for reproducing stop-and-go key motion.

摘要翻译： 自动演奏器钢琴的伺服控制器将实际的键位置标准化为在紧邻目标停止之前的区域中找到键时，将小于作为参考轨迹的目标停止的参考值的值归一化为大于 当键超过目标停止时的参考值，并且将驱动信号调整为适当的值，使得电磁操作的键驱动器将值或另一值与参考值之间的差最小化，由此伺服控制器保持 键在目标停止的两侧的狭窄区域中，用于再现停止和关键运动。

公开(公告)号：US07421434B2

公开(公告)日：2008-09-02

申请号：US10385394

申请日：2003-03-10

申请人： Yuji Fujiwara

发明人： Yuji Fujiwara

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G11B27/002 ,  G11B27/034 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/2512 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2587 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99945

摘要： A musical tune playback control apparatus adapted to a music playback apparatus performs prescribed musical tune playback controls on a digital audio medium (or a digital storage medium, e.g., a CD and a MD) in association with a storage device such as a hard disk drive. Musical tune data recorded on digital audio media satisfying prescribed conditions are automatically selected and are transferred to the storage device, thus allowing the user to easily create a musical tune collection or an album collection suiting the user's preferences. Prescribed conditions are described in such a way that musical tune data are reproduced over a prescribed time or more, or musical tune data are repeatedly reproduced a prescribed number of times or more, for example. Thus, it is possible to reduce a user's burden to perform troublesome operations in selecting musical tune data suiting the user's preferences.

摘要翻译： 适用于音乐播放装置的音乐回放控制装置与诸如硬盘驱动器的存储装置相关联地在数字音频介质（或数字存储介质，例如CD和MD）上执行规定的乐曲重放控制 。 记录在满足规定条件的数字音频媒体上的乐曲数据被自动选择并被传送到存储装置，从而允许用户容易地创建适合用户喜好的音乐收藏或专辑集合。 以规定时间以上再现音乐数据的方式描述规定条件，或者例如将音乐数据重复再现规定次数以上。 因此，可以减轻用户在选择适合用户偏好的音乐数据时执行麻烦的操作的负担。

公开(公告)号：US07332670B2

公开(公告)日：2008-02-19

申请号：US11168262

申请日：2005-06-27

申请人： Yuji Fujiwara ,  Koichi Ishizaki

发明人： Yuji Fujiwara ,  Koichi Ishizaki

IPC分类号： G10H1/32 ,  G10H3/00

CPC分类号： G10F1/02

摘要： An automatic player reenacts a music passage on an acoustic piano without any fingering of a human player; solenoid-operated key actuators and a solenoid-operated pedal actuator is provided for the keys and damper pedal; the automatic player makes the damper pedal travel along a simulative pedal trajectory, and the central processing unit stores pieces of control data expressing the pedal stroke together with the amount of mean current supplied to the solenoid-operated pedal actuator; the central processing unit analyzes the pieces of control data so as to determine an entry point of half pedal section and an exit point of the half pedal section, and specifies a target half point in the half pedal section; while reenacting a music passage, the automatic player brings the damper pedal to the half point so as to reproduce the half pedal state, exactly.

摘要翻译： 自动播放器在声学钢琴上重新播放音乐通道，而无需人类玩家的任何指法; 为键和制音踏板提供电磁操作的钥匙执行器和电磁操作踏板驱动器; 自动播放器使阻尼器踏板沿着模拟踏板轨迹行进，中央处理单元将表示踏板行程的一些控制数据与提供给电磁踏板促动器的平均电流量一起存储; 中央处理单元分析控制数据，以确定半踏板部分的入口点和半踏板部分的出口点，并且指定半踏板部分中的目标半点; 在重新播放音乐通道的同时，自动播放器将阻尼器踏板带到半点，以准确地再现半踏板状态。

公开(公告)号：US07279630B2

公开(公告)日：2007-10-09

申请号：US11057568

申请日：2005-02-14

申请人： Tomoya Sasaki ,  Yuji Fujiwara

发明人： Tomoya Sasaki ,  Yuji Fujiwara

IPC分类号： G10H3/00 ,  G10H1/00 ,  G10F1/02

CPC分类号： G10F1/02 ,  G10G3/04

摘要： An automatic playing system creates a feedback control loop for the keys incorporated in an acoustic piano; key sensors, which are provided under the front portions of the keys, informs a motion controller of current positions, and the motion controller periodically compares the current position and a current velocity with a target position on a reference trajectory and a target velocity to see whether or not a positional deviation and a velocity deviation occur; when the motion controller finds the deviations, the motion controller multiplies the deviations by a position gain and a velocity gain for determining an increment or decrement of the duty ratio of driving signals, and supplies the driving signals to the solenoid-operated actuators so as to accelerate or decelerate the keys; the gain is variable depending upon the key motion so that the actual key trajectory becomes close to the reference trajectory.

摘要翻译： 自动演奏系统为包含在原声钢琴中的琴键创建反馈控制回路; 提供在键的前部的键传感器通知运动控制器当前位置，并且运动控制器周期性地将当前位置和当前速度与参考轨迹上的目标位置和目标速度进行比较，以查看是否 或者不发生位置偏差和速度偏差; 当运动控制器发现偏差时，运动控制器将偏差乘以位置增益和速度增益，以确定驱动信号的占空比的增减，并将驱动信号提供给电磁驱动的致动器，以便 加速或减速键; 增益根据关键运动而变化，使得实际的键轨迹变得接近参考轨迹。

公开(公告)号：US20060201313A1

公开(公告)日：2006-09-14

申请号：US11331670

申请日：2006-01-13

申请人： Tsutomu Sasaki ,  Yuji Fujiwara

发明人： Tsutomu Sasaki ,  Yuji Fujiwara

IPC分类号： G10H1/02 ,  G10H7/00 ,  G01P3/00

CPC分类号： G10H1/344 ,  G10G3/04 ,  G10H2220/305

摘要： An automatic player piano is a combination between an acoustic piano and an electronic system serving as a recorder and an automatic player; while a user is fingering a piece of music on the acoustic piano, the player strongly depresses some keys and softly depresses other keys so as to give artistic expression to the tones, and the depressed keys give rise to hammer motion at different values of hammer velocity; since the hammer velocity is proportional to the loudness of tones, the controller is expected exactly to determine the hammer velocity; the hammers travel on linear trajectories and parabolic trajectories depending upon the hammer velocity so that the controller estimates the hammer velocity by using different methods, whereby the controller can produce music data codes exactly expressing the tones to be produced.

摘要翻译： 自动演奏器钢琴是声钢琴和用作录音机的电子系统和自动播放器之间的组合; 当用户在声学钢琴上指着一段音乐时，玩家强烈地按下一些按键并轻轻按压其他键，以便给予音调的艺术表现，并且按下的按键产生不同锤击速度的锤击运动 ; 由于锤子的速度与音调的响度成正比，所以控制器预期准确地确定锤子的速度; 锤子根据锤子的速度行进在线性轨迹和抛物线轨迹上，以便控制器通过使用不同的方法来估计锤子的速度，从而控制器可以产生正好表达要产生的色调的音乐数据代码。

公开(公告)号：US20060130640A1

公开(公告)日：2006-06-22

申请号：US11261949

申请日：2005-10-27

申请人： Yuji Fujiwara

发明人： Yuji Fujiwara

IPC分类号： G10H1/02 ,  G10H7/00 ,  G01P3/00

CPC分类号： G10H1/0058 ,  G10F1/02 ,  G10G3/04 ,  G10H2210/155 ,  G10H2220/221 ,  G10H2240/016 ,  G10H2250/645

摘要： A music data modifier receives pieces of original music data from a master hybrid piano, and partially modifies the pieces of original music data to pieces of modified music data for a slave hybrid piano; each piece of original music data contains a series of values of a piece of motion data expressing continuous motion of the associated key, a series of values of a piece of time data expressing each expressing a time to obtain the associated value of the motion data and a piece of identification code expressing the key number assigned to the key; even if the music data modifier changes the piece of identification data from the key number to another key number, the piece of motion data still expresses the continuous motion of the key so that the slave hybrid piano exactly reproduce the key motion.

摘要翻译： 音乐数据修改器从主混合钢琴接收原始音乐数据，并将原始音乐数据片段部分地修改为用于从属混合钢琴的修改音乐数据; 每条原始音乐数据包含表示相关键的连续运动的一条运动数据的一系列值，表示每个表达时间的时间数据的一系列值，以表达时间以获得运动数据的相关联的值;以及 表示分配给该键的键编号的识别码; 即使音乐数据修改器将标识数据从密钥号改变为另一密钥号，则该片运动数据仍然表示密钥的连续运动，使得从属混合钢琴正确地再现键运动。

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。