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    Automatic playing musical instrument
    1.
    发明授权
    Automatic playing musical instrument 失效
    自动演奏乐器

    公开(公告)号：US4567804A

    公开(公告)日：1986-02-04

    申请号：US716594

    申请日：1985-03-27

    申请人： Takamichi Sawase ,  Akinori Endo

    发明人： Takamichi Sawase ,  Akinori Endo

    IPC分类号： G10F1/02 ,  G10F3/00 ,  G10G3/04 ,  G10H1/00 ,  G10F5/00

    CPC分类号： G10H1/005 ,  G10F3/00 ,  G10G3/04

    摘要： An automatic playing musical instrument is provided in which the amount of storage medium to be used is substantially decreased. The automatic playing musical instrument is provided with a key information generating circuit for generating key information corresponding to a depressed key among the plurality of keys. A change of the key information is then detected, and a time interval between one of the change and the other which follows immediately after the one of the change is measured so as to generate a time period data representative of the time interval. Each time the change is detected, a musical performance data comprising the key information and the time period is stored in the storage medium, while on the other hand if the change is not detected, no musical performance data is stored thereby saving the amount of the storage medium to be used. The musical performance data stored in the storage medium is reproduced by supplying it to a driving circuit which drives the corresponding key in accordance with the musical performance data.

    摘要翻译： 提供了一种自动演奏乐器，其中使用的存储介质的量显着减少。 自动演奏乐器设置有用于产生与多个键中的按下的键对应的键信息的键信息生成电路。 然后检测关键信息的改变，并且测量在改变之一之后紧跟其后的一个之间的时间间隔，以产生表示时间间隔的时间段数据。 每当检测到变化时，包括密钥信息和时间段的演奏数据被存储在存储介质中，而另一方面如果没有检测到改变，则不存储音乐演奏数据，从而节省了 要使用的存储介质。 存储在存储介质中的演奏数据通过将其提供给根据演奏数据驱动相应的键的驱动电路来再现。

    Sylvania
    7.
    发明授权
    Sylvania 失效

    公开(公告)号：US237208A

    公开(公告)日：1881-02-01

    申请号：US237208D

    CPC分类号： G10F3/00

    Separate automatic player driving keys and pedals of keyboard musical instrument
    8.
    发明申请
    Separate automatic player driving keys and pedals of keyboard musical instrument 有权
    键盘乐器的独立自动播放器驱动键和踏板

    公开(公告)号：US20050235801A1

    公开(公告)日：2005-10-27

    申请号：US11091866

    申请日：2005-03-28

    申请人： Shigeru Muramatsu ,  Katsuo Ito

    发明人： Shigeru Muramatsu ,  Katsuo Ito

    IPC分类号： G10F3/00 ,  G10F1/02

    CPC分类号： G10F3/00

    摘要： A separate automatic player is independent of a piano, and stands in front of the piano for an automatic playing; the separate automatic player includes a key driver unit, a pedal driver unit and a framework on which the key driver unit and pedal driver unit is carried; the key driver unit has an array of key actuators so as to selectively depress and releases the black and white keys, and a pair of side elevators and a rotary unit is provided between the framework and the array of key actuators; the side elevators bring the plunger heads of the key actuators into contact with the upper surfaces of the black and white keys, and the rotary unit makes the plungers vertical to the upper surfaces so that the key actuators exert force on the black and white keys at the magnitude exactly equivalent to pieces of music data.

    摘要翻译： 一个独立的自动播放器独立于钢琴，并站在钢琴前面进行自动演奏; 单独的自动播放器包括键驱动器单元，踏板驱动器单元和框架，键盘驱动器单元和踏板驱动器单元承载在该框架上; 钥匙驱动器单元具有一组关键致动器，以选择性地按压和释放黑白键，并且在框架和键致动器阵列之间设置一对侧升降机和旋转单元; 侧升降机将键致动器的柱塞头与黑白键的上表面接触，并且旋转单元使柱塞垂直于上表面，使得致动器在黑白键处施加力 大小完全相当于音乐数据。

    Electromagnetic actuator used for keyboard musical instrument
    9.
    发明授权
    Electromagnetic actuator used for keyboard musical instrument 失效
    用于键盘乐器的电磁执行器

    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

    IPC分类号： G10F1/02 ,  G10F3/00 ,  G10H1/34

    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。