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    • 1. 发明申请
    • DRIVER CIRCUIT
    • 驱动电路
    • US20110043250A1
    • 2011-02-24
    • US12858295
    • 2010-08-17
    • Yuji KUWANANaoki MATSUMOTOYasuhiro URABE
    • Yuji KUWANANaoki MATSUMOTOYasuhiro URABE
    • H03K19/082H03K19/0175
    • H03K19/001H03K17/04126H03K19/0136H03K2217/0036
    • A level switch circuit receives a digital input signal, and generates a level signal having a voltage level that corresponds to the value of the input signal thus received. A buffer circuit receives a level signal, and outputs the level signal via an output terminal thereof. A bias current generating circuit generates a bias current including a DC component having a constant level and a variable component that changes according to the input signal, and supplies the bias current thus generated to a buffer circuit. The bias current generating circuit detects an edge of the input signal, and raises the bias current by a predetermined amount for a predetermined period of time after the edge thus detected.
    • 电平开关电路接收数字输入信号,并产生具有与所接收的输入信号的值对应的电压电平的电平信号。 缓冲电路接收电平信号,并通过其输出端输出电平信号。 偏置电流产生电路产生包括具有恒定电平的DC分量和根据输入信号而变化的可变分量的偏置电流,并将由此产生的偏置电流提供给缓冲电路。 偏置电流产生电路检测输入信号的边缘,并且在如此检测到的边缘之后的预定时间段内将偏置电流提高预定量。
    • 2. 发明申请
    • DRIVER CIRCUIT AND TEST APPARATUS
    • 驱动电路和测试装置
    • US20110050194A1
    • 2011-03-03
    • US12553755
    • 2009-09-03
    • Yuji KUWANANaoki MATSUMOTOYasuhiro URABE
    • Yuji KUWANANaoki MATSUMOTOYasuhiro URABE
    • G05F5/00
    • H03F3/45
    • Provided is a driver circuit that outputs, from an output end, an output signal corresponding to an input signal supplied thereto, comprising an output resistance section that is provided between a constant voltage source and the output end; an output switching section that switches voltage of the output end according to the input signal; and a switching section that switches a resistance value of the output resistance section. The output resistance section includes an output resistance FET having a source/drain connection between the constant voltage source and the output end, and the switching section supplies a control voltage to a gate of the output resistance FET such that the resistance between the source and the drain of the output resistance FET switches to a designated value.
    • 提供了一种从输出端输出与提供给其的输入信号相对应的输出信号的驱动器电路,包括设置在恒定电压源和输出端之间的输出电阻部分; 输出切换部,其根据输入信号切换输出端的电压; 以及切换部,切换输出电阻部的电阻值。 输出电阻部分包括在恒定电压源和输出端之间具有源极/漏极连接的输出电阻FET,并且开关部分向输出电阻FET的栅极提供控制电压,使得源极和源极之间的电阻 输出电阻FET的漏极切换到指定值。
    • 3. 发明申请
    • Compensation circuit and test apparatus
    • 补偿电路和测试仪器
    • US20100190448A1
    • 2010-07-29
    • US12652550
    • 2010-01-05
    • Yuji KUWANANaoki MATSUMOTO
    • Yuji KUWANANaoki MATSUMOTO
    • H04B15/00G01R31/02
    • G01R31/31924G01R31/3191
    • Provided is a correction circuit for generating an output signal emphasizing a predetermined signal component of a supplied input signal, including: a first detection section that detects a waveform of the input signal; an amplifying section that amplifies the waveform detected by the first detection section; a correction signal generating section that generates a correction signal by extracting an alternate current component from the waveform amplified by the amplifying section; and an output signal generating section that superimposes the correction signal on the waveform of the input signal, thereby generating the output signal. The first detection section detects the waveform of the input signal and an inverted waveform thereof, the amplifying section amplifies the waveform and the inverted waveform of the input signal, the correction signal generating section generates a correction signal and an inverted correction signal by extracting an alternate current component respectively of the waveform and the inverted waveform of the input signal amplified by the amplifying section, and the output signal generating section generates a pair of differential signals for the output signal, by superimposing the correction signal on the waveform of the input signal and superimposing the inverted correction signal on the inverted waveform of the input signal.
    • 提供了一种用于产生强调所提供的输入信号的预定信号分量的输出信号的校正电路,包括:第一检测部分,其检测输入信号的波形; 放大部,其放大由所述第一检测部检测出的波形; 校正信号生成部,其从由放大部放大的波形中提取交流分量,生成校正信号; 以及输出信号生成部,其将所述校正信号叠加在所述输入信号的波形上,从而生成所述输出信号。 第一检测部分检测输入信号的波形及其反相波形,放大部分放大输入信号的波形和反相波形,校正信号产生部分通过提取交替的方式产生校正信号和反相校正信号 分别由放大部分放大的输入信号的波形和反相波形的电流分量,并且输出信号产生部分通过将校正信号叠加在输入信号的波形上并产生一对用于输出信号的差分信号,以及 将反相校正信号叠加在输入信号的反相波形上。
    • 4. 发明申请
    • MOTOR
    • 发动机
    • US20130002069A1
    • 2013-01-03
    • US13533354
    • 2012-06-26
    • Naoki MATSUMOTO
    • Naoki MATSUMOTO
    • H02K11/00
    • H02K11/026H02K5/225
    • A yoke of a motor has a bottom and an open end and accommodates an armature. An end bracket substantially closes the open end of the yoke. A connector portion, which bulges outward of the yoke, and a cutout portion are formed in the circumferential wall of the end bracket. A pair of feed members is provided to extend from the interior of the end bracket to the connector portion through the cutout portion. The end bracket has an accommodation recess for accommodating the noise suppression element at a position corresponding to the cutout portion. Each feed member has an accommodation recess corresponding portion, which corresponds to the accommodation recess, and a cutout portion corresponding portion, which corresponds to the cutout portion. The distance between the accommodation recess corresponding portions of the feed members is greater than the distance between the cutout portion corresponding portions.
    • 电动机的轭具有底部和开口端,并且容纳电枢。 端部支架基本上封闭轭的开口端。 在端托架的周壁上形成有一个连接部,该连接部从轭的外侧凸出,切口部形成。 一对进给构件设置成通过切口部分从端托架的内部延伸到连接器部分。 端托架具有用于将噪声抑制元件容纳在与切口部分相对应的位置处的容纳凹部。 每个进给构件具有对应于容纳凹部的容纳凹部对应部分和对应于切口部分的切口部分对应部分。 进给构件的容纳凹部对应部分之间的距离大于切口部分对应部分之间的距离。