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    • 1. 发明申请
    • SWITCHED CAPACITOR CIRCUIT AND STAGE CIRCUIT FOR AD CONVERTER
    • 用于AD转换器的开关电容器电路和电路
    • US20120162000A1
    • 2012-06-28
    • US13411018
    • 2012-03-02
    • Kunihiko GOTOH
    • Kunihiko GOTOH
    • H03M1/12H03F1/34
    • H03M1/06H03M1/162H03M1/168
    • A switched capacitor circuit, which is operable in two or more kinds of operation modes including a first and second operation modes, includes an amplifier and two or more internal capacitors with switches for controlling connection/disconnection of the capacitor. In the first operation mode that precedes the second operation mode, the switched capacitor circuit generates the first analog output voltage by using the first internal capacitor connected between an input terminal and output terminal of the amplifier by using its switches, the other internal capacitances connected between an input terminal of the amplifier and each analog input voltage supply by using its switches. In the second operation mode, the switched capacitor circuit generates the second analog output voltage with larger feedback factor of the amplifier than it in the first operation mode, by removing some of the internal capacitors, except the first internal capacitor, from the first operation mode.
    • 可以在包括第一和第二操作模式的两种或多种操作模式中操作的开关电容器电路包括放大器和具有用于控制电容器的连接/断开的开关的两个或更多个内部电容器。 在第二操作模式之前的第一操作模式中,开关电容器电路通过使用通过使用其开关连接在放大器的输入端子和输出端子之间的第一内部电容器来产生第一模拟输出电压,其他内部电容连接在 放大器的输入端和使用其开关的每个模拟输入电压电源。 在第二操作模式中,通过从第一操作模式除去第一内部电容器之外的一些内部电容器,除了第一操作模式之外,开关电容器电路产生具有比第一操作模式更大的反馈系数的第二模拟输出电压 。
    • 2. 发明授权
    • Reference voltage generating circuit
    • 参考电压发生电路
    • US07880532B2
    • 2011-02-01
    • US12566240
    • 2009-09-24
    • Toshiharu TakaramotoKunihiko Gotoh
    • Toshiharu TakaramotoKunihiko Gotoh
    • G05F1/10
    • G05F3/30
    • There is provided a reference voltage generating circuit including: a first PN junction element (PN1) whose forward voltage is a first voltage V1; a second PN junction element (PN2) having a current density different from the first PN junction element and whose forward voltage is a second voltage V2 higher than the first voltage V1; and generating circuits (101 to 103) inputting the first voltage V1 and the second voltage V2 and generating a reference voltage expressed by A2×V2+A3×(A2×V2−A1×V1) in which A1, A2, and A3 are set to be coefficients, and in which A1 and A2 are different values.
    • 提供了一种参考电压产生电路,包括:第一PN结元件(PN1),其正向电压是第一电压V1; 具有不同于第一PN结元件的电流密度并且其正向电压是比第一电压V1高的第二电压V2的第二PN结元件(PN2); 以及产生输入第一电压V1和第二电压V2的发电电路(101〜103),并产生由A2×V2 + A3×(A2×V2-A1×V1)表示的参考电压,其中A1,A2和A3被设定 为系数,其中A1和A2为不同的值。
    • 3. 发明申请
    • Reference voltage generator circuit
    • 参考电压发生器电路
    • US20070290669A1
    • 2007-12-20
    • US11892209
    • 2007-08-21
    • Hajime KurataKunihiko Gotoh
    • Hajime KurataKunihiko Gotoh
    • G05F3/20
    • G05F3/30
    • A reference voltage generator circuit is provided which is capable of stable generation of a reference voltage. A differential amplifier circuit has a non-inverting input terminal input with the voltage Vbe1 generated by a PNP transistor Q1 and an inverting input terminal input with an output signal thereof. A differential amplifier circuit has a non-inverting input terminal input with the voltage Vbe2 generated by a PNP transistor Q2 and an inverting input terminal input with the output signal of the differential amplifier circuit through a resistor R1 and also input with an output signal thereof through a resistor R2, to generate a reference voltage Vref.
    • 提供了能够稳定地产生参考电压的参考电压发生器电路。 差分放大器电路具有由PNP晶体管Q 1产生的电压Vbe 1和其输出信号输入的反相输入端子的非反相输入端子输入。 差分放大器电路具有非PN反相输入端子,其中由PNP晶体管Q 2产生的电压Vbe 2和通过电阻器R 1输入差分放大器电路的输出信号的反相输入端子,并输入一个输出端 信号通过电阻器R 2产生参考电压Vref。
    • 7. 发明授权
    • Digital AGC circuit
    • 数字AGC电路
    • US5955925A
    • 1999-09-21
    • US972033
    • 1997-11-17
    • Yuji SegawaKunihiko Gotoh
    • Yuji SegawaKunihiko Gotoh
    • H03G3/20G05F1/00H03G3/00H03G3/30H03K5/156H03K9/06H03K19/20H03L5/00H04B7/26H04Q7/20
    • H03K5/1565H03G3/001
    • An AGC circuit according to the present invention comprises: a gain controller, having a variable gain, for amplifying an input signal at a predetermined gain and generating an output signal, and for varying the gain; a comparison circuit for comparing an amplitude of the input signal or of the output signal with a predetermined reference level, and for generating a control signal that goes to a first level when the amplitude is smaller than the reference level, and that goes to a second level when the amplitude is greater than the reference level; and a duty ratio detector for supplying the control signal generated by the comparison circuit, and for generating control code in accordance with a duty ratio of the control signal, wherein the gain of the gain controller is varied by using the control code, and so adjusted that the duty ratio of the control signal is maintained to be a predetermined value. When the amplitude of the input signal or the output signal is increased, a period during which the amplitude exceeds the reference level is also extended. By utilizing this phenomenon, a gain is varied so as to maintain a control signal duty ratio of 50%, for example, so that the amplitude of the output signal is amplified to a desired value, which is maintained.
    • 根据本发明的AGC电路包括:具有可变增益的增益控制器,用于以预定增益放大输入信号并产生输出信号并改变增益; 比较电路,用于将输入信号或输出信号的幅度与预定参考电平进行比较,并且用于当振幅小于参考电平时产生进入第一电平的控制信号,并且进入第二电平 当幅度大于参考电平时; 以及占空比检测器,用于提供由比较电路产生的控制信号,并且用于根据控制信号的占空比产生控制码,其中增益控制器的增益通过使用控制码而改变,并且被调整 控制信号的占空比保持为预定值。 当输入信号或输出信号的振幅增加时,振幅超过基准电平的时间段也延长。 通过利用这种现象,改变增益,以保持例如50%的控制信号占空比,使得输出信号的幅度被放大到保持的期望值。
    • 8. 发明授权
    • Compander circuit
    • 压缩电路
    • US5633939A
    • 1997-05-27
    • US319721
    • 1994-10-07
    • Kazuhiro KitaniYuji SegawaKunihiko Gotoh
    • Kazuhiro KitaniYuji SegawaKunihiko Gotoh
    • H03G1/00H03G7/06H03G7/00
    • H03G1/0088H03G7/06
    • A compander circuit includes first and second volume controllers, a comparator, a counter and a control part. The comparator compares a compared voltage with a rectified and smoothed signal of an input signal of the compander circuit or an output signal of the first volume controller receiving the input signal, the compared voltage being an output signal of the second volume controller. The counter executes a count operation on an output signal of the comparator in synchronism with a clock signal and controls gains of the first and second volume controllers on the basis of a counter value of the counter. The control part controls a frequency of the clock signal applied to the counter by a predetermined control signal.
    • 压缩扩展器电路包括第一和第二音量控制器,比较器,计数器和控制部分。 比较器将比较的电压与压缩电路的输入信号的整流和平滑信号或接收输入信号的第一体积控制器的输出信号进行比较,所比较的电压是第二音量控制器的输出信号。 计数器与时钟信号同步地对比较器的输出信号执行计数操作,并且基于计数器的计数器值来控制第一和第二音量控制器的增益。 控制部分通过预定的控制信号控制施加到计数器的时钟信号的频率。
    • 9. 发明授权
    • Coupling for breaking a seal film of a dispensing opening for a
fluid-filled container
    • 用于破坏用于流体填充的容器的分配开口的密封膜的联接器
    • US5351860A
    • 1994-10-04
    • US996588
    • 1992-12-24
    • Kunihiko Gotoh
    • Kunihiko Gotoh
    • B67D3/04B67D5/00
    • B67B7/26B67D3/043
    • A coupling comprises a plug attached to the opening of a fluid-filled container. The plug includes an inner cylinder having an opening sealed by film comparatively easily broken by a sharp tip or a blade, and an outer cylinder fitted onto the inner cylinder. A socket is connected to the plug, the socket including a connection to a fluid suction pump. A cutter section has a tip portion shaped like a triangular pyramid to gradually break the film at the opening of the inner plug cylinder when the socket is connected to the plug and also has a trunk portion continuous from the tip portion and shaped like a triangle pole. An inner cylinder is carried by the socket and has a valve synchronous with the sucking operation of said fluid suction pump to open and close a fluid passage in the inner cylinder. A sleeve having a collar rotatably fitted on the inner cylinder and cooperative with a stopper on the outer plug cylinder serves to detachably fix the inner socket cylinder in the plug.
    • 联接器包括附接到流体填充容器的开口的塞子。 插头包括内筒,该内筒具有由比较容易被锋利尖端或刀片破碎的薄膜密封的开口以及装配在内筒上的外筒。 插座连接到插头,插座包括与流体抽吸泵的连接。 切割器部分具有形状为三角锥形的尖端部分,当插座连接到插头时,在内塞圆柱体的开口处逐渐断开薄膜,并且还具有从尖端部分连续形成的躯干部分,并形成为三角形极 。 内筒由插座承载,并且具有与所述流体抽吸泵的抽吸操作同步的阀,以打开和关闭内筒中的流体通道。 具有可旋转地装配在内筒上并与外塞子筒上的止动件配合的套筒的套筒用于将内套筒可拆卸地固定在塞子中。