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1. 发明授权

US06933494B2 Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the same 有权
标题翻译：具有光学特性的光学传感器头和使用其的光学传感器系统
公开(公告)号：US06933494B2
公开(公告)日：2005-08-23
申请号：US10418021
申请日：2003-04-17
申请人： Tadaharu Kato , Tomoyuki Ura , Tsutomu Sasaki
发明人： Tadaharu Kato , Tomoyuki Ura , Tsutomu Sasaki
IPC分类号： G10H1/055 , G10H1/34 , H01L31/12 , H01J5/02
CPC分类号： G10H1/344 , G10H1/0553 , G10H2220/305 , G10H2240/255
摘要： An optical sensor system includes a light emitting unit, a light detecting unit, light radiating optical sensor heads connected through optical fibers to the light emitting unit and light receiving optical sensor heads connected through optical fibers to the light detecting unit, and light is selectively distributed to the light radiating optical sensor heads for radiating light beams from both side surfaces of each sensor head to the adjacent light receiving optical sensor heads for converting the incident light to photo-current; each light radiating optical sensor head has prisms for splitting the light into two beams; however, the stray light is produced at the edge between the reflection surfaces; the stray light is reduced or predictably controlled by forming textured pattern on the side surfaces, a photo-shield member or notches; otherwise, the edge is sharpened by separately forming the prisms.
摘要翻译：光传感器系统包括发光单元，光检测单元，通过光纤连接到发光单元的光辐射光学传感器头和通过光纤连接到光检测单元的光接收光学传感器头，并且选择性地分布光到用于将每个传感器头的两个侧表面的光束照射到相邻的光接收光学传感器头的光辐射光学传感器头，用于将入射光转换成光电流; 每个光辐射光学传感器头具有用于将光分成两束的棱镜; 然而，杂散光在反射表面之间的边缘产生; 通过在侧表面上形成纹理图案，光屏蔽构件或凹口来减少或可预测地控制杂散光; 否则，通过单独形成棱镜来锐化边缘。

2. 发明授权

US07259319B2 Performance operator control apparatus 有权
标题翻译：性能操作员控制装置
公开(公告)号：US07259319B2
公开(公告)日：2007-08-21
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： G01H1/32 , G01H3/00
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。

3. 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。

4. 发明授权

US07121737B2 Light emitting unit operative at high coupling efficiency, optical sensor system and musical instrument using the same 有权
公开(公告)号：US07121737B2
公开(公告)日：2006-10-17
申请号：US10420312
申请日：2003-04-22
申请人： Tadaharu Kato , Shigeru Muramatsu , Tsutomu Sasaki
发明人： Tadaharu Kato , Shigeru Muramatsu , Tsutomu Sasaki
IPC分类号： G02B6/00 , G02B6/36
CPC分类号： G10C3/12 , G02B6/322 , G02B6/4204 , G02B6/4292 , G02B6/4298 , G02B6/43 , G10G3/00
摘要： A light emitting device includes an optical fiber plug formed with a through-hole into which a bundle of optical fibers is inserted and a light-emitting device holder formed with a through-hole in which a condenser lens and a light emitting device are accommodated, and the optical fiber plug is assembled with the light-emitting device holder so that the light emitting device is optically coupled to the optical fiber through the condenser lens; a positioning device, a hyperboloid lens surface or a reflecting surface is formed in the optical fiber plug/light emitting device holder, condenser lens or the inner surface of the light-emitting device holder so that the light incident on the light input end is increased by virtue of the exact positioning between the optical fiber and optical axis, reduction of aberration or increase of light directed to the condenser lens.

5. 发明授权

US06940005B2 Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer 有权
标题翻译：键盘乐器，用于精确地产生音调和锤子传感器，改变输出信号，正好表示锤子的物理量
公开(公告)号：US06940005B2
公开(公告)日：2005-09-06
申请号：US10293181
申请日：2002-11-13
申请人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
发明人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
IPC分类号： G10F1/02 , G01D5/347 , G10C3/18 , G10G3/04 , G10H1/00 , G10H1/34
CPC分类号： G10F1/02 , G01D5/34715 , G01D5/34776 , G10G3/04
摘要： A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.
摘要翻译：锤传感器包括可与锤组件一起移动的光过滤板，并且具有固定到锤柄的基板和形成在基板上且与基板不透明的弧形图案，辐射光的光辐射元件光束朝向弧形图案，以及光电检测元件，其设置在光束的光路上，用于将透射光量转换为电信号，其中，光电转换板将琴组件的旋转角度转换为光量入射到光电检测元件上，并使光辐射元件和光检测元件静止，使得合适的遮光罩防止光元件受到环境光的影响。

6. 发明授权

US06515213B2 Keyboard musical instrument for exactly producing tones and hammer sensor varying output signal exactly representing physical quantity of hammer 有权
公开(公告)号：US06515213B2
公开(公告)日：2003-02-04
申请号：US10002262
申请日：2001-11-14
申请人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
发明人： Shigeru Muramatsu , Tsutomu Sasaki , Tadaharu Kato
IPC分类号： G10F102
CPC分类号： G10F1/02 , G01D5/34715 , G01D5/34776 , G10G3/04
摘要： A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.

7. 发明授权

US07642448B2 Optical transducer system for monitoring movable parts, optical modulator and musical instrument using the same 失效
标题翻译：用于监测可移动部件的光学传感器系统，光学调制器和使用其的乐器
公开(公告)号：US07642448B2
公开(公告)日：2010-01-05
申请号：US11762271
申请日：2007-06-13
申请人： Tadaharu Kato
发明人： Tadaharu Kato
IPC分类号： G10H3/06
CPC分类号： G01D5/30 , G01D5/34707 , G10H1/0553 , G10H2220/305
摘要： An optical modulator is hung from a key moved on a key trajectory so as to be moved together with the key, and a light beam, which is stationary with respect to a key bed, is radiated through the optical modulator; a large number of miniature refractors are formed on the light output surface of the optical modulator, and the density of miniature refractors per unit area is varied in a direction in which the optical modulator is moved together with the key so that the current key position is converted to the amount of light passing through the optical modulator; since the miniature refractors and other portions of optical modulator have a unitary structure, a molding process is used for the optical modulator, and the molding process make the production cost low.
摘要翻译：将光调制器悬挂在键轨道上移动的键上，以便与键一起移动，并且通过光调制器辐射相对于键床固定的光束; 在光调制器的光输出表面上形成大量的微型折射器，并且每单位面积的微型折射器的密度在光调制器与键一起移动的方向上变化，使得当前的键位置转换成通过光调制器的光量; 由于微型折射器等光学调制器的一部分具有一体结构，所以使用光学调制器的成型工艺，并且成型工艺使生产成本低。

8. 发明申请

US20080011151A1 Optical Transducer System for Monitoring Movable Parts, Optical Modulator and Musical Instrument Using the Same 失效
标题翻译：用于监控移动部件的光学传感器系统，光学调制器和使用其的乐器
公开(公告)号：US20080011151A1
公开(公告)日：2008-01-17
申请号：US11762271
申请日：2007-06-13
申请人： Tadaharu Kato
发明人： Tadaharu Kato
IPC分类号： G06M7/00 , G10H3/06
CPC分类号： G01D5/30 , G01D5/34707 , G10H1/0553 , G10H2220/305
摘要： An optical modulator is hung from a key moved on a key trajectory so as to be moved together with the key, and a light beam, which is stationary with respect to a key bed, is radiated through the optical modulator; a large number of miniature refractors are formed on the light output surface of the optical modulator, and the density of miniature refractors per unit area is varied in a direction in which the optical modulator is moved together with the key so that the current key position is converted to the amount of light passing through the optical modulator; since the miniature refractors and other portions of optical modulator have a unitary structure, a molding process is used for the optical modulator, and the molding process make the production cost low.
摘要翻译：将光调制器悬挂在键轨道上移动的键上，以便与键一起移动，并且通过光调制器辐射相对于键床固定的光束; 在光调制器的光输出表面上形成大量的微型折射器，并且每单位面积的微型折射器的密度在光调制器与键一起移动的方向上变化，使得当前的键位置转换成通过光调制器的光量; 由于微型折射器等光学调制器的一部分具有一体结构，所以使用光学调制器的成型工艺，并且成型工艺使生产成本低。

9. 发明授权

US07259313B2 Musical instrument system capable of locating missing remote controller, musical instrument, remote controller and method use therein 有权
标题翻译：乐器系统能够定位遥控器，乐器，遥控器及其中的使用方法
公开(公告)号：US07259313B2
公开(公告)日：2007-08-21
申请号：US10857285
申请日：2004-05-28
申请人： Yoshitake Suzuki , Toshio Yamayoshi , Tadaharu Kato , Yuji Fujiwara , Tatsuya Makino
发明人： Yoshitake Suzuki , Toshio Yamayoshi , Tadaharu Kato , Yuji Fujiwara , Tatsuya Makino
IPC分类号： G10H1/00
CPC分类号： G10H1/0008 , G10H2240/211
摘要： An electronic piano is controllable with a remote controller; since the remote controller is physically separated from the electronic piano, users are liable to mislay the remote controller somewhere around the electronic piano; in this situation, the user instructs the electronic piano to transmit a radio wave representative of inquiry, and the missing remote controller responds to the inquiry by transmitting a radio wave representative of annunciation; the electronic piano is equipped with antennas separated from each other on the piano cabinet, and the received power at the antennas is varied depending upon the location of the missing remote controller; the electronic piano analyzes the received power so as to notify the user of the possible location of the missing remote controller.
摘要翻译：电子钢琴可以用遥控器控制; 由于遥控器与电子钢琴物理上分离，因此用户可能会误导遥控器在电子钢琴周围的某处; 在这种情况下，用户指示电子钢琴发送代表查询的无线电波，而丢失的遥控器通过发送代表通知的无线电波响应询问; 电子钢琴配备有在钢琴柜上彼此分离的天线，并且天线处的接收功率根据丢失的遥控器的位置而变化; 电子钢琴分析接收的功率，以通知用户丢失的遥控器的可能位置。

10. 发明授权

US4700392A Speech signal detector having adaptive threshold values 失效
标题翻译：具有自适应阈值的语音信号检测器
公开(公告)号：US4700392A
公开(公告)日：1987-10-13
申请号：US643929
申请日：1984-08-24
申请人： Tadaharu Kato , Takao Nishitani
发明人： Tadaharu Kato , Takao Nishitani
IPC分类号： G10L11/02 , G10L5/00
CPC分类号： G10L25/78
摘要： Speech presence is detected by first comparing input signal absolute value versus a first threshold which is proportional to input signal RMS noise power, accumulating the first comparison output signal, then comparing the accumulated signal versus a second threshold signal which is proportional to a hangover time signal. The first and second threshold signals are used to form up to six threshold values.
摘要翻译：通过首先比较输入信号绝对值与与输入信号RMS噪声功率成比例的第一阈值来检测语音存在，累积第一比较输出信号，然后比较累积信号与延时时间信号成比例的第二阈值信号。第一和第二阈值信号用于形成多达六个阈值。

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