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    • 71. 发明申请
    • DRIVING DEVICE AND DRIVING METHOD OF PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS
    • 等离子体显示面板和等离子体显示装置的驱动装置和驱动方法
    • US20100259521A1
    • 2010-10-14
    • US12747003
    • 2008-09-04
    • Toshiyuki MaedaKenji OgawaNaoki NoguchiTakahiko Origuchi
    • Toshiyuki MaedaKenji OgawaNaoki NoguchiTakahiko Origuchi
    • G09G3/28G09G5/00
    • G09G3/293G09G3/2925G09G2320/0228G09G2360/16
    • A two-phase driving operation is performed by a first circuit and a second circuit in at least one sub-field. The first circuit applies a first ramp waveform that drops from a first potential to a second potential to a plurality of first scan electrodes in a setup period, and sequentially applies a scan pulse to the plurality of first scan electrodes in a write period. The second circuit applies a second ramp waveform that drops from the first potential to a third potential that is higher than the second potential to a plurality of second scan electrodes, and then raises the plurality of second scan electrodes to a fourth potential in the setup period, and holds the plurality of second scan electrodes at a fifth potential that is higher than the third potential and lower than the fourth potential in a period where the first scan pulse is applied, and then sequentially applies a scan pulse to the plurality of second electrodes in the write period. Discharge failures during write discharges can be prevented from occurring by employing the two-phase driving operation.
    • 在至少一个子场中由第一电路和第二电路执行两相驱动操作。 第一电路在初始化周期中施加从第一电位降低到第二电位的第一斜坡波形,并且在写入周期中顺序地对多个第一扫描电极施加扫描脉冲。 第二电路对第一扫描电极施加从第一电位下降到高于第二电位的第三电位的第二斜坡波形,然后在初始化周期中将多个第二扫描电极升高到第四电位 并且在施加第一扫描脉冲的周期中将多个第二扫描电极保持在高于第三电位且低于第四电位的第五电位,然后顺序地将多个第二电极施加扫描脉冲 在写期间。 可以通过采用两相驱动操作来防止写放电期间的放电故障。
    • 74. 发明申请
    • Test circuit
    • 测试电路
    • US20080281547A1
    • 2008-11-13
    • US12149742
    • 2008-05-07
    • Yoshiyuki NakamuraToshiharu AsakaToshiyuki MaedaTomonori Sasaki
    • Yoshiyuki NakamuraToshiharu AsakaToshiyuki MaedaTomonori Sasaki
    • G01R31/317
    • G01R31/31855
    • A test circuit including a TAP controller specified in IEEE (Institute of Electrical and Electronics Engineers) 1149 and a test access port includes a first controller including a selecting circuit and a first TAP controller, the selecting circuit generating an internal TMS signal in accordance with TMS signal and selecting an output destination of the internal TMS signal in accordance with a selection signal, and the first TAP controller changing internal state based on the internal TMS signal, testing corresponding test target block in accordance with instruction code for test, and generating the selection signal in accordance with instruction code for selection, and a second controller including a second TAP controller changing internal state based on the internal TMS signal and testing corresponding test target block in accordance with the instruction code for test.
    • 包括IEEE(Institute of Electrical and Electronics Engineers)1149中规定的TAP控制器和测试访问端口的测试电路包括:第一控制器,包括选择电路和第一TAP控制器,所述选择电路根据TMS产生内部TMS信号 信号并根据选择信号选择内部TMS信号的输出目的地,并且第一TAP控制器基于内部TMS信号改变内部状态,根据用于测试的指令代码来测试相应的测试目标块,并且生成选择 信号,以及第二控制器,包括第二TAP控制器,其基于内部TMS信号改变内部状态,并根据用于测试的指令代码来测试相应的测试目标块。
    • 77. 发明申请
    • Motor Controlling method and apparatus thereof
    • 电机控制方法及其装置
    • US20060192516A1
    • 2006-08-31
    • US11415151
    • 2006-05-02
    • Toshiyuki Maeda
    • Toshiyuki Maeda
    • G05F1/10
    • 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。