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    • 1. 发明授权
    • Input-output interface circuit, integrated circuit device and electronic apparatus
    • 输入输出接口电路,集成电路器件和电子设备
    • US08228650B2
    • 2012-07-24
    • US12726722
    • 2010-03-18
    • Tomoko HaraYoshihiko Nimura
    • Tomoko HaraYoshihiko Nimura
    • H02H9/04
    • H01L27/0629H01L27/0251H01L27/0921H01L27/0928
    • An input-output interface circuit of the present invention includes an input-output terminal, an input buffer, a first MOS transistor of a first conductivity type formed in a floating well region, an output buffer for outputting a signal externally through the input-output terminal, an electrostatic protection circuit, and a floating well potential adjusting circuit, wherein the electrostatic protection circuit has a first resistance, and a diode connected between another end of the first resistance and a high level power supply potential, and the floating well potential adjusting circuit has a second resistance having one end connected to the input-output terminal, and a second MOS transistor of the first conductivity type having one end connected to another end of the second resistance, another end connected to the floating well region, and a gate connected to the high level power supply potential.
    • 本发明的输入输出接口电路包括:输入输出端子,输入缓冲器,形成在浮动阱区域中的第一导电类型的第一MOS晶体管,用于通过输入输出端从外部输出信号的输出缓冲器 端子,静电保护电路和浮置阱电位调整电路,其中静电保护电路具有第一电阻,并且连接在第一电阻的另一端与高电平电源电位之间的二极管,以及浮置阱电位调整 电路具有第一电阻,其一端连接到输入 - 输出端子;以及第一导电类型的第二MOS晶体管,其一端连接到第二电阻的另一端,另一端连接到浮动阱区,以及栅极 连接到高电平的电源电位。
    • 6. 发明授权
    • Oscillation device and oscillation method
    • 振荡装置和振荡方法
    • US07496331B2
    • 2009-02-24
    • US11248117
    • 2005-10-12
    • Yoshihiko NimuraNaoki Ogura
    • Yoshihiko NimuraNaoki Ogura
    • H04B1/40H04B7/00
    • H03L3/00G06F1/04
    • An oscillation device, includes: an oscillator circuit that generates an oscillation signal based on a direct current voltage to be inputted, the oscillation signal being provided with a specification requested by a supplied device that is supposed to receive a supply of the oscillation signal; a gate circuit provided in the subsequent stage of the oscillator circuit and capable of outputting the oscillation signal from the oscillator circuit towards the supplied device; a power supply monitor circuit for detecting that the direct current voltage to be inputted has reached a voltage at which the oscillator circuit is able to start to generate the oscillation signal; and a delay circuit that causes the gate circuit to output to the supplied device the oscillation signal from the oscillator circuit, when a time required for the state of the oscillation signal, which the oscillator circuit generates, to become substantially constant is clocked on the basis of a time when a notice of the detection is received from the power supply monitor circuit, and the clocking is completed.
    • 一种振荡装置,包括:振荡电路,其根据要输入的直流电压产生振荡信号,所述振荡信号具有被提供的装置所要求的规格,所述规定应该接收所述振荡信号的供给; 设置在振荡电路的后级的门电路,能够将来自振荡电路的振荡信号输出到所提供的装置; 用于检测要输入的直流电压已经达到振荡器电路能够开始产生振荡信号的电压的电源监视电路; 以及延迟电路,当振荡器电路产生的振荡信号的状态变得基本恒定所需的时间基于时钟时,使得门电路向所提供的器件输出来自振荡器电路的振荡信号 从电源监视电路接收到检测通知的时间,并且时钟完成。
    • 8. 发明申请
    • Receiver circuit and amplifier circuit
    • 接收电路和放大电路
    • US20080280578A1
    • 2008-11-13
    • US12149669
    • 2008-05-06
    • Yoshihiko Nimura
    • Yoshihiko Nimura
    • H04B1/06H03F1/34H03F3/45
    • H03G3/3063H03F1/342H03F3/193H03F3/45475H03F2203/45138H03H11/245
    • A receiver circuit includes an attenuator that receives a received signal and attenuates the received signal, a DC level shifter that shifts a DC level of an attenuated signal from the attenuator, an amplifier section that has frequency characteristics of a band-pass filter and amplifies a signal from the DC level shifter that has been shifted with respect to the DC level, and a control circuit that controls an attenuation of the attenuator based on a signal output from the amplifier section. The control circuit controls the attenuation of the attenuator by changing filter characteristics of the attenuator corresponding to an amplitude of the signal output from the amplifier section so that the signal output from the amplifier section has a constant amplitude even when an amplitude of the received signal has changed.
    • 接收机电路包括接收接收信号并衰减接收信号的衰减器,将来自衰减器的衰减信号的直流电平移位的直流电平移位器,具有带通滤波器的频率特性的放大器部分, 来自已经相对于DC电平移位的DC电平移位器的信号,以及控制电路,其基于从放大器部分输出的信号来控制衰减器的衰减。 控制电路通过改变对应于从放大器部分输出的信号的振幅的衰减器的滤波特性来控制衰减器的衰减,使得即使当接收信号的幅度具有恒定幅度时,从放大器部分输出的信号也具有恒定幅度 改变了