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    • 1. 发明授权
    • Servo control system operable on digital basis
    • 伺服控制系统可以数字化操作
    • US4313074A
    • 1982-01-26
    • US144131
    • 1980-04-28
    • Tadashi NomuraHiroshi InadaKeizo MoritaAkio WatanabeKiyoaki Nishikawa
    • Tadashi NomuraHiroshi InadaKeizo MoritaAkio WatanabeKiyoaki Nishikawa
    • G05B19/23G05B19/35G05B1/01
    • G05B19/353G05B19/232
    • A digital servo control system is responsive to a command signal indicative of a command position of a moveable element and to a phase modulated signal corresponding to the angle of rotation of a motor controlling said moveable element to develop a motor drive signal to position the motor. The system provides control during a velocity control mode and a position control mode, the latter occurring after the moveable element is moved to a predetermined small incremental distance from the commanded position. During the velocity control mode the motor is driven in accordance with a reference velocity selected in dependence upon the position error signal. Following a prescribed time after entry into the position control mode, the position error has added thereto an integration signal which increases in the same sense as the position error.
    • 数字伺服控制系统响应于指示可移动元件的指令位置的指令信号和对应于控制所述可移动元件的电动机的旋转角度的相位调制信号,以形成电动机驱动信号以定位电动机。 该系统在速度控制模式和位置​​控制模式期间提供控制,后者发生在可移动元件移动到距命令位置的预定的小增量距离之后。 在速度控制模式期间,根据位置误差信号选择的参考速度来驱动电动机。 在进入位置控制模式之后的规定时间之后,位置误差增加了与位置误差相同的积分信号。
    • 4. 发明申请
    • Muting Circuit
    • 静音电路
    • US20080075301A1
    • 2008-03-27
    • US11858848
    • 2007-09-20
    • Akio Watanabe
    • Akio Watanabe
    • H04B15/02
    • H03G3/344
    • A muting circuit comprising: a DC offset eliminating unit including an HPF (High Pass Filter) constituted by a first operational amplifier to eliminate a DC offset component of an AC input signal, the DC offset eliminating unit being configured to output an output signal obtained by eliminating the DC offset component of the AC input signal; a muting signal generating unit including a second operational amplifier configured to generate a second DC offset identical in level to a first DC offset at the first operational amplifier, the muting signal generating unit being configured to output a muting signal indicative of the second DC offset by fixing input to the second operational amplifier at a predetermined DC level; and a selecting unit configured to select and output the output signal when muting is not executed, and to select and output the muting signal when muting is executed.
    • 一种静噪电路,包括:DC偏移消除单元,包括由第一运算放大器构成的HPF(高通滤波器),以消除AC输入信号的DC偏移分量; DC偏移消除单元,被配置为输出由 消除AC输入信号的DC偏移分量; 静音信号产生单元,包括第二运算放大器,其被配置为产生与第一运算放大器处的第一DC偏移电平相等的第二DC偏移,所述静噪信号生成单元被配置为将表示第二DC偏移的静噪信号输出 以预定的DC电平将输入固定到第二运算放大器; 以及选择单元,被配置为在不执行静音时选择和输出输出信号,并且在执行静音时选择和输出静音信号。
    • 5. 发明申请
    • Electronic component mounting apparatus
    • 电子元件安装装置
    • US20070011869A1
    • 2007-01-18
    • US11478434
    • 2006-06-30
    • Akio WatanabeAkihiro KawaiTetsuji OnoMakio KamedaKazuyoshi Oyama
    • Akio WatanabeAkihiro KawaiTetsuji OnoMakio KamedaKazuyoshi Oyama
    • B23P19/00
    • H05K13/0215H05K13/0419H05K13/081Y10T29/4913Y10T29/49131Y10T29/49133Y10T29/49146Y10T29/53174Y10T29/53178
    • This invention is directed to prevention of reduction of a pickup rate of an electronic component when a component feeding unit is dismounted from a feeder base and mounted back thereon. A CPU sends a feeding command to a component feeding unit feeding an electronic component belonging to a first step number, and drives a servomotor and a drive motor of the feeding unit to perform a component feeding operation and so on. After then, when the CPU judges that the feeding unit is dismounted from the feeder base and mounted back thereon, the CPU drives a X axis drive motor and a Y axis drive motor to move a board recognition camera to the pickup position of the feeding unit, the camera takes an image of a storage portion of a storage tape, and a recognition processing device performs recognition processing to the image. A correction value based on this recognition result is stored in a RAM, the X axis drive motor and the Y axis drive motor are driven taking this correction value into account, a vertical axis drive motor is driven, and a suction nozzle lowers and picks up the electronic component.
    • 本发明涉及防止当将元件供给单元从供料器基座上拆下并安装在其上时降低电子元件的拾取速度。 CPU向馈送属于第一步骤的电子部件的部件供给部发送进给命令,驱动供给部的伺服马达和驱动马达进行部件供给动作等。 然后,当CPU判断进给单元从进料器基座上卸下并安装在其上时,CPU驱动X轴驱动电机和Y轴驱动电机将板识别摄像机移动到进给单元的拾取位置 相机拍摄存储带的存储部分的图像,并且识别处理装置对图像执行识别处理。 基于该识别结果的校正值存储在RAM中,考虑到该修正值来驱动X轴驱动电动机和Y轴驱动电动机,驱动垂直轴驱动电动机,吸嘴降低并取出 电子元件。
    • 7. 发明授权
    • Optical isolator module
    • 光隔离器模块
    • US06872012B2
    • 2005-03-29
    • US10399403
    • 2002-08-21
    • Akio Watanabe
    • Akio Watanabe
    • G02B6/38G02B6/42G02B27/28H01S5/00H01S5/022G02B6/36
    • G02B6/4209G02B6/3834G02B6/4208H01S5/0064H01S5/02252H01S5/02284
    • An optical isolator module having a capillary 3 to which an optical fiber 2 has been fitted, an optical isolator 7 provided on the light-incident side of the capillary and a transparent member 8, and being set in a housing of a semiconductor module. The optical isolator module is provided on the side opposite to the light-incident side of the capillary, with a hermetic bead 11 which i) holds an optical fiber 2 which extends from the capillary in the direction opposite to its light-incident side and whose bare fiber stands uncovered by removing a resin coat, and ii) is fitted in a hermetically sealable state into an opening made in a housing side wall of the semiconductor module.
    • 具有安装有光纤2的毛细管3的光隔离器模块,设置在毛细管的光入射侧的光隔离器7和透明构件8,并且设置在半导体模块的壳体中。 光隔离器模块设置在与毛细管的光入射侧相对的一侧,具有密封珠11,其密封i)保持从毛细管沿与其光入射侧相反的方向延伸的光纤2, 通过去除树脂涂层而露出裸露的纤维架,并且ii)以气密密封状态装配到在半导体模块的壳体侧壁中形成的开口中。
    • 8. 发明授权
    • Methods of producing ruthenium perovskite
    • 生产钌钙钛矿的方法
    • US06656872B2
    • 2003-12-02
    • US10076642
    • 2002-02-19
    • Nitin Kumar LabhasetwarTakefumi MitsuhashiAkio Watanabe
    • Nitin Kumar LabhasetwarTakefumi MitsuhashiAkio Watanabe
    • B01J2363
    • C01G55/00B01J23/002B01J23/63B01J2523/00C01P2002/34B01J2523/3706B01J2523/821
    • Methods for producing ruthenium perovskite represented by a chemical formula LaRuO3, wherein La is lanthanum to which twelve oxygen ions are coordinated, Ru is ruthenium to which six oxygen ions are coordinated, and O is oxygen, which comprises reacting an aqueous mixed metal ion solution containing metal ions of La and Ru with a precipitate-forming liquid in a reaction container to co-precipitate hydroxides of La and Ru, and subjecting the precipitate to a heat treatment. Alternatively, the co-precipitated mass is deposited on a suitable carrier and subsequently heated to form supported LaRuO3. The co-precipitated La and Ru hydroxides can also be directly formed on a carrier by precipitation from a homogenous solution containing La, Ru and urea. This provides a uniform dispersion of co-precipitated hydroxides on a carrier, subsequent heating of which results in formation of supported LaRuO3. The materials thus obtained are to be used as efficient catalysts for certain reactions of environmental importance. These synthesis methods can also be used for the improved synthesis of LaRuO3 for other applications.
    • 用化学式LaRuO 3表示的生产钌钙钛矿的方法,其中La是与其配位的12个氧离子的镧,Ru是六个氧离子配位的钌,O是氧,其包括使含水混合金属离子溶液 La和Ru的金属离子在反应容器中具有沉淀物形成液体,以共沉淀La和Ru的氢氧化物,并对沉淀物进行热处理。 或者,将共沉淀的物质沉积在合适的载体上,随后加热以形成负载的LaRuO 3。 共沉淀的La和Ru氢氧化物也可以通过从含有La,Ru和尿素的均匀溶液中沉淀而直接形成在载体上。 这提供了共沉淀氢氧化物在载体上的均匀分散,其后的加热导致形成负载的LaRuO 3。 这样得到的材料将被用作某些具有环境重要性的反应的有效催化剂。 这些合成方法也可用于改进其它应用的LaRuO3合成。