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    • 52. 发明申请
    • REACTOR CONTAINMENT STRUCTURE
    • 反应器容纳结构
    • US20120051487A1
    • 2012-03-01
    • US13319537
    • 2010-05-12
    • Hideo FukudaNobuki UdaHiroshi Matsuoka
    • Hideo FukudaNobuki UdaHiroshi Matsuoka
    • G21C15/18
    • G21C15/18G21C9/00G21D1/00G21D3/04Y02E30/40
    • The reactor containment structure is provided with a reactor containment vessel (10), a reactor containment chamber (11) which is installed inside the reactor containment vessel (10) to contain a nuclear power reactor (5), a pool (12) which is installed inside the reactor containment vessel (10) so as to be below the reactor containment chamber (11) adjacently and in which an emergency cooling liquid (W) is stored, an opening part (11b) which allows the emergency cooling liquid (W) to flow into the pool (12) from the reactor containment chamber (11), a sump (13) which is installed below the pool (12), a debris filtering body (14) which is installed at the sump (13) to filter debris contained in the emergency cooling liquid (W), a pumping device (20) which sucks the emergency cooling liquid (W) from the sump (13) and discharges the emergency cooling liquid (W) into the reactor containment chamber (11) and a baffle plate (30) which guides the emergency cooling liquid (W) that flows into the pool (12) from the opening part (11b) in a direction spaced away from the sump (13).
    • 反应堆容纳结构设置有反应堆容纳容器(10),反应堆容纳室(11),其安装在反应堆容纳容器(10)内部以容纳核动力反应堆(5),池(12) 安装在所述反应堆容纳容器(10)内,以便相邻地存在所述反应堆容纳室(11)的下方,并且其中存储有应急冷却液(W);允许所述应急冷却液(W)的开口部(11b) 从反应堆容纳室(11)流入池(12),安装在池(12)下方的贮槽(13),安装在贮槽(13)上的碎屑过滤体(14)以过滤 包含在应急冷却液(W)中的碎屑,从贮槽(13)吸入应急冷却液(W)并将应急冷却液(W)排放到反应堆容纳室(11)内的泵送装置(20) 引导流入的应急冷却液(W)的挡板(30) 所述池(12)从所述开口部分(11b)沿与所述贮槽(13)间隔开的方向。
    • 53. 发明授权
    • Optical semiconductor device and infrared data communication apparatus eliminating low frequency component
    • 光半导体装置和红外数据通信装置消除低频分量
    • US08035072B2
    • 2011-10-11
    • US12204834
    • 2008-09-05
    • Hideo FukudaHiroshi Yamaguchi
    • Hideo FukudaHiroshi Yamaguchi
    • H03F3/08
    • H03F3/08
    • An optical semiconductor device and an infrared data communication apparatus eliminating a direct current component and a low frequency component included in a light signal. The optical semiconductor device converts a light signal into an electric signal and amplifies the converted electric signal. The optical semiconductor device includes: a photodiode which converts a light signal into a current signal; another photodiode which converts a light signal into a current signal; a current amplifying circuit which includes an operational amplifier which amplifies an output current from the photodiode; and a current-voltage conversion circuit which converts an output current from the other photodiode into a voltage. An output terminal of the current amplifying circuit is connected to an input terminal of the current-voltage conversion circuit.
    • 一种消除光信号中包括的直流分量和低频分量的光学半导体器件和红外数据通信设备。 光学半导体装置将光信号转换为电信号并放大转换的电信号。 光学半导体器件包括:将光信号转换为电流信号的光电二极管; 将光信号转换为电流信号的另一光电二极管; 电流放大电路,包括放大来自光电二极管的输出电流的运算放大器; 以及将来自另一光电二极管的输出电流转换为电压的电流 - 电压转换电路。 电流放大电路的输出端连接到电流 - 电压转换电路的输入端。
    • 55. 发明授权
    • Photodetector-amplifier circuit and optical pickup device
    • 光检测放大器电路和光学拾取装置
    • US07470885B2
    • 2008-12-30
    • US11216003
    • 2005-09-01
    • Shinichi MiyamotoHideo Fukuda
    • Shinichi MiyamotoHideo Fukuda
    • H03K17/78H03K19/14
    • G11B7/13G01J1/44
    • The present invention provides a photodetector-amplifier circuit capable of eliminating an influence of noise due to stray light entering a non-selected photodetector to stably select and switch a photodetector. The photodetector-amplifier circuit of the present invention comprises photodetectors 12 and 13. The photodetector 12 is connected via a switch 16 between an inverting input terminal of an operational amplifier 11 and GND, and is also connected via a switch 18 to a voltage source Vcc. The photodetector 13 is connected via a switch 17 to the inverting input terminal of the operational amplifier 11 and GND, and is also connected via a switch 19 to the voltage source Vcc.
    • 本发明提供一种光电检测器 - 放大器电路,其能够消除由于杂散光进入未选择的光电检测器而导致的噪声的影响,以稳定地选择和切换光电检测器。 本发明的光检测器放大器电路包括光电探测器12和13.光电检测器12通过开关16连接在运算放大器11的反相输入端和GND之间,并经由开关18连接到电压源Vcc 。 光检测器13经由开关17连接到运算放大器11和GND的反相输入端,并且还经由开关19连接到电压源Vcc。
    • 56. 发明授权
    • Method of identifying optical disc type, and optical disc device
    • 识别光盘类型的方法和光盘装置
    • US07245564B2
    • 2007-07-17
    • US10803909
    • 2004-03-19
    • Jun NakanoHideo Fukuda
    • Jun NakanoHideo Fukuda
    • G11B7/085
    • G11B19/12G11B7/0943G11B2007/0006
    • An unknown optical disc is identified as a CD when an all sum signal value AS-max by a photodetector on a signal surface of the unknown optical disc is larger than an all sum signal value AS-cdref for CD signal surface reference for identifying the CD and the hybrid SACD as a CD based on each CD signal surface thereof, and a focus search driving voltage Y corresponding to the signal surface of the unknown optical disc is lager than a voltage value acquired by a predetermined relational expression between a focus search driving voltage Q corresponding to a DVD signal surface of a reference DVD and a focus search driving voltage R corresponding to a CD signal surface of a reference CD.
    • 当未知光盘的信号表面上的光电检测器的全和信号值AS-max大于用于识别CD的CD信号表面参考的全和信号值AS-cdref时,将未知光盘识别为CD 并且基于其每个CD信号表面作为CD的混合SACD,并且与未知光盘的信号表面相对应的焦点搜索驱动电压Y比通过聚焦搜索驱动电压之间的预定关系式获得的电压值大 对应于参考DVD的DVD信号表面的Q和对应于参考CD的CD信号表面的对焦搜索驱动电压R.
    • 58. 发明申请
    • Light receiving amplification circuit
    • 光接收放大电路
    • US20060103472A1
    • 2006-05-18
    • US11266323
    • 2005-11-04
    • Hideo FukudaKenji Imaizumi
    • Hideo FukudaKenji Imaizumi
    • H03F3/08
    • H03F3/08H03F1/34
    • A light receiving amplification circuit according to the present invention includes: a light receiving element (101); an amplification circuit which amplifies a photoelectric current generated by the light receiving element and outputs from an amplification stage for external output (117) and a plurality of amplification stages for feedback (109 and 113); an operating current source (111, 115, and 118) set in each of the amplification stages which supplies an operating current to the corresponding amplification stages; a gain selection switch (110 and 114) set in the respective plurality of amplification stages for feedback, which interrupts the operating current between the corresponding amplification stage and the operating current source; and a gain resistor (119 and 120) set in the respective plurality of amplification stages for feedback and connected between the operating current side of the corresponding gain selection switch and an input of the amplification circuit.
    • 根据本发明的光接收放大电路包括:光接收元件(101); 放大电路,其放大由所述受光元件产生的光电流,并从用于外部输出的放大级(117)和多个用于反馈的放大级(109和113)输出; 设置在每个放大级中的工作电流源(111,115和118),其向相应的放大级提供工作电流; 设置在相应的多个放大级中用于反馈的增益选择开关(110和114),其中断相应的放大级与工作电流源之间的工作电流; 以及设置在相应的多个放大级中用于反馈并连接在相应的增益选择开关的工作电流侧和放大电路的输入之间的增益电阻器(119和120)。
    • 59. 发明申请
    • Photodetector-amplifier circuit and optical pickup device
    • 光检测放大器电路和光学拾取装置
    • US20060054789A1
    • 2006-03-16
    • US11216003
    • 2005-09-01
    • Shinichi MiyamotoHideo Fukuda
    • Shinichi MiyamotoHideo Fukuda
    • G01J1/42
    • G11B7/13G01J1/44
    • The present invention provides a photodetector-amplifier circuit capable of eliminating an influence of noise due to stray light entering a non-selected photodetector to stably select and switch a photodetector. The photodetector-amplifier circuit of the present invention comprises photodetectors 12 and 13. The photodetector 12 is connected via a switch 16 between an inverting input terminal of an operational amplifier 11 and GND, and is also connected via a switch 18 to a voltage source Vcc. The photodetector 13 is connected via a switch 17 to the inverting input terminal of the operational amplifier 11 and GND, and is also connected via a switch 19 to the voltage source Vcc.
    • 本发明提供一种光电检测器 - 放大器电路,其能够消除由于杂散光进入未选择的光电检测器而导致的噪声的影响,以稳定地选择和切换光电检测器。 本发明的光检测放大器电路包括光检测器12和13。 光电检测器12通过开关16连接在运算放大器11的反相输入端和GND之间,并且还通过开关18连接到电压源Vcc。 光检测器13经由开关17连接到运算放大器11和GND的反相输入端,并且还经由开关19连接到电压源Vcc。