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    • 33. 发明授权
    • Optical signal receiving apparatus and optical signal attenuation controlling method
    • 光信号接收装置和光信号衰减控制方法
    • US08190036B2
    • 2012-05-29
    • US12385004
    • 2009-03-27
    • Koshi KitajimaSunao ItouHideyuki Kikuchi
    • Koshi KitajimaSunao ItouHideyuki Kikuchi
    • H04B10/06
    • H04B10/674
    • A VOA maximum attenuation control circuit has, in addition to a conventional VOA maximum attenuation control circuit, a first resistor and a second resistor, a transistor which is an emitter follower type PNP transistor, and a capacitor. Since charge of the capacitor is 0 volt at the instant when power of the optical interface unit or each optical interface is shifted from OFF state to ON state, current is supplied to a VOA by the transistor in association with shift to the ON state of the power. As a result, attenuation of the VOA reaches maximum. When the capacitor is gradually charged, base potential of the transistor is finally +5 volts, and current is 0 ampere. Then shifting to maximum attenuation control of the VOA by an operational amplifier is realized.
    • 除了常规的VOA最大衰减控制电路之外,VOA最大衰减控制电路还具有第一电阻器和第二电阻器,作为射极跟随器型PNP晶体管的晶体管和电容器。 由于在光接口单元或每个光接口的功率从OFF状态转换到ON状态的瞬间,电容器的充电为0伏,所以通过晶体管将电流提供给VOA,同时转换到ON状态 功率。 结果,VOA的衰减达到最大。 当电容器逐渐充电时,晶体管的基极电位最终为+5伏特,电流为0安培。 然后通过运算放大器转移到VOA的最大衰减控制。
    • 35. 发明申请
    • Optical signal receiving apparatus and optical signal attenuation controlling method
    • 光信号接收装置和光信号衰减控制方法
    • US20090297169A1
    • 2009-12-03
    • US12385004
    • 2009-03-27
    • Koshi KitajimaSunao ItouHideyuki Kikuchi
    • Koshi KitajimaSunao ItouHideyuki Kikuchi
    • H04B10/06
    • H04B10/674
    • A VOA maximum attenuation control circuit has, in addition to a conventional VOA maximum attenuation control circuit, a first resistor and a second resistor, a transistor which is an emitter follower type PNP transistor, and a capacitor. Since charge of the capacitor is 0 volt at the instant when power of the optical interface unit or each optical interface is shifted from OFF state to ON state, current is supplied to a VOA by the transistor in association with shift to the ON state of the power. As a result, attenuation of the VOA reaches maximum. When the capacitor is gradually charged, base potential of the transistor is finally +5 volts, and current is 0 ampere. Then shifting to maximum attenuation control of the VOA by an operational amplifier is realized.
    • 除了常规的VOA最大衰减控制电路之外,VOA最大衰减控制电路还具有第一电阻器和第二电阻器,作为射极跟随器型PNP晶体管的晶体管和电容器。 由于在光接口单元或每个光接口的功率从OFF状态转换到ON状态的瞬间,电容器的充电为0伏,所以通过晶体管将电流提供给VOA,同时转换到ON状态 功率。 结果,VOA的衰减达到最大。 当电容器逐渐充电时,晶体管的基极电位最终为+5伏特,电流为0安培。 然后通过运算放大器转移到VOA的最大衰减控制。
    • 40. 发明授权
    • Magnetoresistive memory apparatus
    • 磁阻存储装置
    • US06903400B2
    • 2005-06-07
    • US10788319
    • 2004-03-01
    • Hideyuki KikuchiMasashige SatoKazuo Kobayashi
    • Hideyuki KikuchiMasashige SatoKazuo Kobayashi
    • H01L27/105H01L21/8246H01L21/8247H01L27/22H01L29/76H01L31/062H01L43/08
    • B82Y10/00H01L27/228
    • A magnetoresistive memory apparatus with a semiconductor substrate having a plurality of intersecting, non-contacting word lines and bit lines constituting a matrix, and a plurality of ferromagnetic tunnel junction devices located adjacent each intersection of the plurality of lines, each junction device having, disposed one upon another via insulating layers, free layers having variable magnetization directions and fixed magnetization layers having fixed magnetization directions, with magnetized information being written to the memory device at an intersection selected by magnetization electric currents supplied to the lines, the magnetized information read out by detecting the resistance variance of electric currents flowing through the memory device due to the tunnel effect. The plurality of junction devices deviate from the intersections of the plurality of lines, and between the lines are non-contacting free layer extended portions being extensions from only the free layer, to shorten the interval there between.
    • 一种具有半导体衬底的磁阻存储器件,具有多个相交的非接触字线和构成矩阵的位线,以及多个铁磁隧道结器件,位于多条线的每个交叉点附近,每个接合器件都具有 通过绝缘层,具有可变磁化方向的自由层和具有固定磁化方向的固定磁化层彼此依次通过磁化信息在由提供给线路的磁化电流选择的交点处被写入存储器件中,磁化信息由 检测由于隧道效应而流过存储器件的电流的电阻方差。 多个接合装置偏离多个线路的交叉点,并且线路之间的非接触自由层延伸部分仅从自由层延伸,以缩短其间的间隔。