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    • 23. 发明授权
    • Motor controlling method and apparatus thereof
    • 电动机控制方法及其装置
    • US08587241B2
    • 2013-11-19
    • US11415146
    • 2006-05-02
    • Toshiyuki Maeda
    • Toshiyuki Maeda
    • H02P7/00
    • H02P27/08H02P6/28H02P23/0004H02P27/045
    • A voltage detection section and current detection section detect a voltage and current supplied to a motor, and the detected voltage and current are supplied to a position detection section. An angular speed output from the position detection section is supplied to a differentiator to output an angular acceleration. A fundamental wave component extraction section extracts a fundamental wave component of the angular acceleration, and the extracted fundamental wave component is supplied to an amplitude adjustment section. The output of the amplitude adjustment section is subtracted from the average current command by a subtraction section. This subtraction result, current detection value, and the rotor position from the position detection section are supplied to a current control section to carry out the current control operation so as to obtain a current command. The current command is supplied to an inverter to control the voltage and current so as to suppress the speed changing due to the load torque changing. Thus, stability is improved, and a decrease in cost is realized.
    • 电压检测部分和电流检测部分检测提供给电动机的电压和电流,并且检测到的电压和电流被提供给位置检测部分。 从位置检测部输出的角速度被提供给微分器以输出角加速度。 基波分量提取部提取角加速度的基波分量,提取的基波分量被提供给振幅调整部。 通过减法部从平均电流指令中减去振幅调整部的输出。 该减法结果,电流检测值和来自位置检测部的转子位置被提供给电流控制部,以执行电流控制操作,以获得电流指令。 电流指令被提供给逆变器以控制电压和电流,以便抑制由于负载转矩变化引起的速度变化。 因此,稳定性提高,成本降低。
    • 24. 发明授权
    • Test circuit including tap controller selectively outputting test signal based on mode and shift signals
    • 测试电路包括抽头控制器,选择性地输出基于模式和移位信号的测试信号
    • US08468402B2
    • 2013-06-18
    • US12654801
    • 2010-01-05
    • Toshiyuki MaedaYoshiyuki Nakamura
    • Toshiyuki MaedaYoshiyuki Nakamura
    • G01R31/3177
    • G01R31/318555
    • A test circuit includes a plurality of TAP controllers conforming to a standard specification defined in IEEE 1149 and includes a master TAP controller which receives a control code and a test control signal and performs a test on a circuit to be tested and which outputs a shift mode signal, a first slave TAP controller which receives the control code and the test control signal and performs a test on a circuit to be tested, and a first TAP pin control circuit provided to correspond to the first slave TAP controller and which switches between inputting the control code to the first slave TAP controller from the outside and inputting the control code through the master TAP controller, on the basis of the shift mode signal.
    • 测试电路包括符合IEEE 1149中定义的标准规范的多个TAP控制器,并且包括主TAP控制器,其接收控制代码和测试控制信号,并对要测试的电路进行测试,并且输出移位模式 信号,第一从属TAP控制器,其接收控制码和测试控制信号并对要测试的电路进行测试;以及第一TAP引脚控制电路,被设置为对应于第一从TAP控制器,并且在第一从属TAP控制器之间进行切换 控制代码从外部到第一从机TAP控制器,并根据移位模式信号通过主TAP控制器输入控制代码。
    • 25. 发明授权
    • Plasma display device and method for driving plasma display panel
    • 等离子体显示装置及驱动等离子体显示面板的方法
    • US08384621B2
    • 2013-02-26
    • US12092216
    • 2007-08-03
    • Takahiko OriguchiHidehiko ShojiToshiyuki Maeda
    • Takahiko OriguchiHidehiko ShojiToshiyuki Maeda
    • G09G3/28
    • G09G3/296G09G3/2022G09G3/2927G09G2310/066G09G2320/041G09G2330/028
    • One field period includes a plurality of subfields each having (i) an initialization period in which a gradually descending sloping waveform voltage is applied to a scan electrode, (ii) a writing period in which a negative scan pulse voltage is applied to the scan electrode, and (iii) a sustain period. A sloping waveform voltage is generated by switching a minimum voltage in the sloping waveform voltage between a first voltage and a second voltage that has a lower voltage value than that of the first voltage. A number of subfields, in which an initialization is carried out by the sloping waveform voltage having the minimum voltage as the second voltage, is increased when a temperature of a plasma display panel is determined to be low as compared with when the temperature is determined to be not low.
    • 一个场周期包括多个子场,每个子场具有(i)向扫描电极施加逐渐下降的倾斜波形电压的初始化周期,(ii)向扫描电极施加负扫描脉冲电压的写入周期 ,(iii)维持期。 通过在具有比第一电压的电压值低的第一电压和第二电压之间的倾斜波形电压中切换最小电压来产生倾斜的波形电压。 与等温显示面板的温度相比,当等离子体显示面板的温度被确定为低时,通过具有最小电压的倾斜波形电压作为第二电压进行初始化的多个子场被增加 不低
    • 28. 发明授权
    • Motor controlling method and apparatus thereof
    • US08129933B2
    • 2012-03-06
    • US11415151
    • 2006-05-02
    • Toshiyuki Maeda
    • Toshiyuki Maeda
    • H02P1/04
    • H02P27/08H02P6/28H02P23/0004H02P27/045
    • A voltage detection section and current detection section detect a voltage and current supplied to a motor, and the detected voltage and current are supplied to a position detection section. An angular speed output from the position detection section is supplied to a differentiator to output an angular acceleration. A fundamental wave component extraction section extracts a fundamental wave component of the angular acceleration, and the extracted fundamental wave component is supplied to an amplitude adjustment section. The output of the amplitude adjustment section is subtracted from the average current command by a subtraction section. This subtraction result, current detection value, and the rotor position from the position detection section are supplied to a current control section to carry out the current control operation so as to obtain a current command. The current command is supplied to an inverter to control the voltage and current so as to suppress the speed changing due to the load torque changing. Thus, stability is improved, and a decrease in cost is realized.
    • 29. 发明申请
    • DRIVING METHOD OF PLASMA DISPLAY PANEL
    • 等离子显示面板的驱动方法
    • US20110037755A1
    • 2011-02-17
    • US12988582
    • 2010-04-02
    • Toshiyuki MaedaYutaka YoshihamaShinya Tsuchida
    • Toshiyuki MaedaYutaka YoshihamaShinya Tsuchida
    • G09G5/00G09G3/28
    • G09G3/293G09G3/2927G09G2310/0218G09G2310/0267
    • A driving method of an alternating-current surface discharge type PDP is provided. In the initializing period. an operation that applies a predetermined voltage for causing discharge regardless of the presence or absence of the former discharge to a scan electrode and causes the initializing discharge in the discharge cell is assumed as a forcibly initializing operation. In the address period, the time when a scan pulse is applied to the scan electrode and an address pulse is applied to the data electrode is assumed to be address time. In each of discharge cells, the forcibly initializing operation is performed in one of a plurality of fields, and the address time in the address period of a field that does not, undergo the forcibly initializing operation is set to be longer than the address time in the address period of a field that undergoes the forcibly initializing operation.
    • 提供了一种交流表面放电型PDP的驱动方法。 在初始化期间。 无论是否存在对扫描电极的存在或不存在,并且使放电单元中的初始化放电被假设为强制初始化操作,则施加用于引起放电的预定电压的操作。 在寻址周期中,将扫描脉冲施加到扫描电极的时间和地址脉冲施加到数据电极被认为是寻址时间。 在每个放电单元中,强制初始化操作在多个场中的一个场中执行,并且未经过强制初始化操作的场的地址周期中的地址时间被设置为长于地址时间 经过强制初始化操作的字段的寻址周期。
    • 30. 发明申请
    • PLASMA DISPLAY DEVICE AND PLASMA DISPLAY PANEL DRIVING METHOD
    • 等离子体显示装置和等离子显示面板驱动方法
    • US20100118056A1
    • 2010-05-13
    • US11995021
    • 2007-07-06
    • Takahiko OriguchiHidehiko ShojiMitsuo UedaToshiyuki Maeda
    • Takahiko OriguchiHidehiko ShojiMitsuo UedaToshiyuki Maeda
    • G09G5/10
    • G09G3/2965G09G3/2022G09G3/294G09G2310/066
    • In a plasma display device and a method for driving a plasma display panel, fluctuation of emission luminance of a discharge cell is reduced and display quality of an image is improved. The plasma display device is provided with a plasma display panel having a plurality of scanning electrodes and sustaining electrodes which configure a display electrode pair. The plasma display device is also provided with a sustaining pulse generating circuit, which has a plurality of subfields having an initializing period, a writing period and a sustaining period in one field period, and generates three kinds of sustaining pulses, i.e., a first sustaining pulse to be reference, a second sustaining pulse whose start-up is sharper than that of the first sustaining pulse and that of a third sustaining pulse, and the third sustaining pulse whose trailing edge is sharper than that of the first sustaining pulse and that of the second sustaining pulse, by periodically switching the pulses. In a sustaining period of at least one subfield in one field period, the third sustaining pulse is applied to one electrode of the electrode pair, then just after the application, the second sustaining pulse is applied to the other electrode of the display electrode pair.
    • 在等离子体显示装置和等离子体显示面板的驱动方法中,放电单元的发光亮度的变动减小,图像的显示品质提高。 等离子体显示装置设置有具有构成显示电极对的多个扫描电极和维持电极的等离子体显示面板。 等离子体显示装置还具有维持脉冲发生电路,其具有在一个场周期中具有初始化周期,写入周期和维持周期的多个子场,并且产生三种维持脉冲,即,第一维持 脉冲作为参考,第二维持脉冲的启动比第一维持脉冲和第三维持脉冲的启动更尖锐,第三维持脉冲的后沿比第一维持脉冲更尖锐, 第二维持脉冲,通过周期性地切换脉冲。 在一个场周期中的至少一个子场的维持周期中,将第三维持脉冲施加到电极对的一个电极,然后在施加之后,将第二维持脉冲施加到显示电极对的另一个电极。