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    • 2. 发明授权
    • Musical tone central parameter controller for a musical instrument
    • 用于乐器的乐音中央参数控制器
    • US5187315A
    • 1993-02-16
    • US495376
    • 1990-03-19
    • Shigeru MuramatsuKeisuke WatanabeJunichi Mishima
    • Shigeru MuramatsuKeisuke WatanabeJunichi Mishima
    • G10H1/055G10H1/34
    • G10H1/0555G10H1/344Y10S84/07
    • In construction of a keyboard apparatus in which a plurality of keys are swingably mounted to a fixed key support and change in electric inductance is induced in response to every key operation for adjustment of musical tone control parameters, the change in inductance by an inductance change inducer is detected by at least one planar coil pattern which is arranged such that its mating surface area with the an inductance change inducer should change in correspondence to the key stroke of the key at key operation. Thanks to use of the change in the mating surface area in detection, a linear relationship is obtained between the key stroke and the detection output, which well avoids inter-key variation in detection output for uniform generation of musical tones from different keys.
    • 在其中多个键可摆动地安装到固定键支架上的键盘装置的构造中,响应于用于调节乐曲控制参数的每个键操作而感应出电感的变化,电感变化诱导器 通过至少一个平面线圈图案来检测,该平面线圈图案被布置为使得其与电感变化感应器的匹配表面区域应当在键操作时对应于键的键行程而改变。 由于在检测中使用配合表面积的变化,所以在键行程和检测输出之间获得线性关系,这很好地避免了检测输出中的键间变化,用于从不同的键均匀生成乐音。
    • 3. 发明授权
    • Electronic musical instrument simulating acoustic piano keytouch
characteristics
    • 电子乐器模拟钢琴琴键的特征
    • US6005178A
    • 1999-12-21
    • US172348
    • 1998-10-14
    • Ichiro OsugaTsuyoshi SatoTakamichi MasubuchiKeisuke WatanabeJunichi Mishima
    • Ichiro OsugaTsuyoshi SatoTakamichi MasubuchiKeisuke WatanabeJunichi Mishima
    • G10C3/12G10H1/34G01C3/12
    • G10C3/12G10H1/346
    • A keyboard assembly for an electronic musical instrument comprises at least a plurality of keys, a key support member and a plurality of key-return springs. The key support member rotatably supports the keys; and the key-return spring is provided between the key and key support member so as to press up the key to a normal position. Mechanical parameters which affect a key scaling to key-touch responses of the keys are sizes, shapes and locations of parts of the keyboard assembly, which are set by analyzing motions of an action mechanism of an acoustic piano. For example, weight of the key is adjusted using a deadweight member so as to provide a specific key-touch response for the key. An amount of elastic resilience, made by the key-return spring, is adjusted by changing at least one location, at which one end of the key-return spring is terminated, so as to provide a specific key-touch response for the key. Viscous resistance, made by viscous material, such as grease, which is provided between a selected portion of the key and some member, such as a key guide and a support-point member, is adjusted by changing shape and/or size of that member, so as to provide a specific key-touch response for the key. The key scaling is performed by changing the key-touch response with respect to each of the keys; or the key scaling is performed by changing the key-touch response with respect to a selected division of the keyboard.
    • 用于电子乐器的键盘组件包括至少多个键,键支撑构件和多个键复位弹簧。 钥匙支撑构件可旋转地支撑钥匙; 并且按键复位弹簧设置在键和键支撑构件之间,以便将键按到正常位置。 影响键的按键触摸响应的键缩放的机械参数是通过分析原声钢琴的动作机构的运动而设置的键盘组件的部件的尺寸,形状和位置。 例如,使用无重量的构件来调整键的重量,以便为键提供特定的按键触摸响应。 由键复位弹簧制成的一定量的弹性回弹是通过改变至少一个位置来调节的,在该位置处,钥匙复位弹簧的一端终止,从而为钥匙提供特定的按键触摸响应。 通过改变该构件的形状和/或尺寸来调节由粘性材料(例如油脂)制成的粘性阻力,其通过改变键的选定部分和某些构件(例如键导向件和支撑点构件) ,以便为键提供具体的按键触摸响应。 通过改变关于每个键的按键触摸响应来执行按键缩放; 或者通过改变关于键盘的所选择的部分的按键触摸响应来执行按键缩放。
    • 4. 发明授权
    • Keyboard assembly for electronic musical instrument
    • 电子乐器键盘组合
    • US5895875A
    • 1999-04-20
    • US409204
    • 1995-03-23
    • Ichiro OsugaTsuyoshi SatoTakamichi MasubuchiKeisuke WatanabeJunichi Mishima
    • Ichiro OsugaTsuyoshi SatoTakamichi MasubuchiKeisuke WatanabeJunichi Mishima
    • G10C3/12G10H1/34
    • G10H1/346G10C3/12
    • A keyboard assembly for an electronic musical instrument comprises at least a plurality of keys, a key support member and a plurality of key-return springs. The key support member rotatably supports the keys; and the key-return spring is provided between the key and key support member so as to press up the key to a normal position. Mechanical parameters which affect a key scaling to key-touch responses of the keys are sizes, shapes and locations of parts of the keyboard assembly, which are set by analyzing motions of an action mechanism of an acoustic piano. For example, weight of the key is adjusted using a deadweight member so as to provide a specific key-touch response for the key. An amount of elastic resilience, made by the key-return spring, is adjusted by changing at least one location, at which one end of the key-return spring is terminated, so as to provide a specific key-touch response for the key. Viscous resistance, made by viscous material, such as grease, which is provided between a selected portion of the key and some member, such as a key guide and a support-point member, is adjusted by changing shape and/or size of that member, so as to provide a specific key-touch response for the key. The key scaling is performed by changing the key-touch response with respect to each of the keys; or the key scaling is performed by changing the key-touch response with respect to a selected division of the keyboard.
    • 用于电子乐器的键盘组件包括至少多个键,键支撑构件和多个键复位弹簧。 钥匙支撑构件可旋转地支撑钥匙; 并且按键复位弹簧设置在键和键支撑构件之间,以便将键按到正常位置。 影响键的按键触摸响应的键缩放的机械参数是通过分析原声钢琴的动作机构的运动而设置的键盘组件的部件的尺寸,形状和位置。 例如,使用无重量的构件来调整键的重量,以便为键提供特定的按键触摸响应。 由键复位弹簧制成的一定量的弹性回弹是通过改变至少一个位置来调节的,在该位置处,钥匙复位弹簧的一端终止,从而为钥匙提供特定的按键触摸响应。 通过改变该构件的形状和/或尺寸来调节由粘性材料(例如油脂)制成的粘性阻力,其通过改变键的选定部分和某些构件(例如键导向件和支撑点构件) ,以便为键提供具体的按键触摸响应。 通过改变关于每个键的按键触摸响应来执行按键缩放; 或者通过改变关于键盘的所选择的部分的按键触摸响应来执行按键缩放。
    • 6. 发明申请
    • Image Forming Apparatus
    • 图像形成装置
    • US20140079433A1
    • 2014-03-20
    • US14024695
    • 2013-09-12
    • Keisuke Watanabe
    • Keisuke Watanabe
    • G03G15/00
    • G03G15/80G03G21/1619
    • An image forming apparatus includes an image forming portion, a first side frame and a second side frame facing each other and supporting a part of the image forming portion, a lower frame connecting the first side frame and the second side frame below the image forming portion, a lower voltage power supply board including a low voltage circuit configured to lower a voltage from an external power supply to a specified voltage and supply the specified voltage to other units, and a cover. The lower frame has an upper surface facing upward and includes a plurality of fixing portions. The low voltage power supply board is fixed to the fixing portions of the lower frame. The cover covers the lower voltage power supply board on a side thereof opposite to the lower frame.
    • 图像形成装置包括图像形成部分,第一侧框架和第二侧框架,其彼此面对并支撑图像形成部分的一部分;下框架,其将第一侧框架和第二侧框架连接在图像形成部分下方 低电压电源板,包括低压电路,其被配置为将来自外部电源的电压降低到指定电压,并将指定的电压提供给其它单元,以及盖。 下框架具有面向上的上表面并且包括多个固定部分。 低压电源板固定在下框架的固定部分上。 盖子在与下框架相对的一侧覆盖低压电源板。
    • 10. 发明申请
    • Key guide structure in keyboard apparatus
    • 键盘设备键盘导轨结构
    • US20070221042A1
    • 2007-09-27
    • US11726842
    • 2007-03-23
    • Keisuke Watanabe
    • Keisuke Watanabe
    • G10C3/12
    • G10C3/12
    • Keyboard apparatus has a frame and a key pivotably mounted on the frame. Key guide structure includes a key-side guide member provided inside the key, and a frame-side guide member provided on the frame. The key-side guide member has at least one convexly-formed portion projecting from the inner surface of a distal end portion of the key, remote from a pivot point of the key, toward the pivot point. The frame-side guide member permits movement of the key-side guide member along a pivoting direction of the key, but limits lateral movement of the key-side guide member.
    • 键盘装置具有可枢转地安装在框架上的框架和键。 键导向结构包括设置在键内的键侧引导构件和设置在框架上的框架侧引导构件。 钥匙侧引导构件具有从键的远端部分的内表面远离键的枢转点向枢轴点突出的至少一个凸形部分。 框架侧引导构件允许钥匙侧引导构件沿着键的枢转方向移动,但是限制了钥匙侧引导构件的横向移动。