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1. 发明申请

US20110043250A1 DRIVER CIRCUIT 失效
标题翻译：驱动电路
公开(公告)号：US20110043250A1
公开(公告)日：2011-02-24
申请号：US12858295
申请日：2010-08-17
申请人： Yuji KUWANA , Naoki MATSUMOTO , Yasuhiro URABE
发明人： Yuji KUWANA , Naoki MATSUMOTO , Yasuhiro URABE
IPC分类号： H03K19/082 , H03K19/0175
CPC分类号： H03K19/001 , H03K17/04126 , H03K19/0136 , H03K2217/0036
摘要： 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.
摘要翻译：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

US20110050194A1 DRIVER CIRCUIT AND TEST APPARATUS 失效
标题翻译：驱动电路和测试装置
公开(公告)号：US20110050194A1
公开(公告)日：2011-03-03
申请号：US12553755
申请日：2009-09-03
申请人： Yuji KUWANA , Naoki MATSUMOTO , Yasuhiro URABE
发明人： Yuji KUWANA , Naoki MATSUMOTO , Yasuhiro URABE
IPC分类号： G05F5/00
CPC分类号： H03F3/45
摘要： 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.
摘要翻译：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

US20100190448A1 Compensation circuit and test apparatus 失效
标题翻译：补偿电路和测试仪器
公开(公告)号：US20100190448A1
公开(公告)日：2010-07-29
申请号：US12652550
申请日：2010-01-05
申请人： Yuji KUWANA , Naoki MATSUMOTO
发明人： Yuji KUWANA , Naoki MATSUMOTO
IPC分类号： H04B15/00 , G01R31/02
CPC分类号： G01R31/31924 , G01R31/3191
摘要： 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.
摘要翻译：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。

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