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    • 5. 发明授权
    • 아발란치 포토다이오드의 제조방법
    • 制备化合物的方法
    • KR101695700B1
    • 2017-01-13
    • KR1020100130537
    • 2010-12-20
    • 한국전자통신연구원
    • 심재식김기수민봉기오명숙권용환남은수
    • H01L31/107H01L31/18H01L31/02
    • H01L31/107H01L31/184Y02E10/544
    • 본발명은아발란치포토다이오드의제조방법에관한것으로, 본발명의제조방법은, 기판의전면에광흡수층, 그래이딩층, 전기장완충층및 증폭층을순차적으로성장시켜에피탁시웨이퍼(Epitaxy wafer)를형성하는단계; 상기증폭층상에확산조절층을형성하는단계; 상기확산조절층상에확산조절층을보호하는보호층을형성하는단계; 상기보호층에서부터상기증폭층의소정깊이까지에칭하여에칭부를형성하는단계; 상기보호층을패터닝하여제1패터닝부를형성하는단계; 상기에칭부및 상기제1패터닝부에확산물질을확산시켜상기증폭층에접합영역과가드링영역을형성하는단계; 상기확산조절층및 상기보호층을제거하고, 상기증폭층상에상기접합영역과연결되는제1전극을형성하는단계; 및상기기판의후면에제2전극을형성하는단계를포함한다. 이와같은본 발명은재현성이확보되고신뢰성이우수한아발란치포토다이오드를제공할수 있다.
    • 一种方法包括:依次在衬底表面上生长光吸收层,分级层,电场缓冲层和放大层,形成外延晶片; 在放大层上形成扩散控制层; 形成用于保护扩散控制层上的扩散控制层的保护层; 通过从保护层蚀刻到放大层的预定深度来形成蚀刻部分; 通过图案化所述保护层来形成第一图案形成部分; 通过使扩散材料扩散到所述蚀刻部分和所述第一图案形成部分,在所述放大层处形成接合区域和保护区域; 去除扩散控制层和保护层,并形成连接到放大层上的结区的第一电极; 以及在所述基板的后表面上形成第二电极。
    • 9. 发明公开
    • 귀환 증폭기
    • 反馈放大器
    • KR1020140089052A
    • 2014-07-14
    • KR1020130000317
    • 2013-01-02
    • 한국전자통신연구원
    • 이상흥김성일강동민임종원주철원윤형섭문재경남은수
    • H03F1/34H03F1/30
    • H03F3/08H03G1/0047H03G1/0088H03G3/02H03G3/3084H03G11/02
    • The present invention relates to a feedback amplifier. The feedback amplifier according to the present invention includes an amplification circuit unit which amplifies a burst packet signal inputted from an input terminal and outputs the amplified signal to an output terminal, a feedback circuit unit which is located between the input terminal and the output terminal and is controlled for applying a fixed resistance value to the signal outputted to the output terminal, a packet signal detecting unit which detects the peak of the burst packet signal from the output terminal and controls whether to apply the fixed resistance value, and a bias circuit unit which generates a bias voltage. The feedback circuit unit controls a gain by determining a feedback resistance value for changing the fixed resistance value according to at least one control signal and receiving a bias voltage.
    • 本发明涉及一种反馈放大器。 根据本发明的反馈放大器包括:放大电路单元,其放大从输入端输入的突发分组信号,并将放大的信号输出到输出端;反馈电路单元,位于输入端和输出端之间;以及 被控制为对输出到输出端子的信号施加固定电阻值;分组信号检测单元,其检测来自输出端子的突发分组信号的峰值,并控制是否施加固定电阻值;偏置电路单元 其产生偏置电压。 反馈电路单元通过根据至少一个控制信号确定用于改变固定电阻值并接收偏置电压的反馈电阻值来控制增益。
    • 10. 发明公开
    • 광 수신기에 대한 IQ 불균형 측정 장치 및 IQ 불균형 측정 방법
    • IQ智能测量设备和智能接收机智能测量方法
    • KR1020140077734A
    • 2014-06-24
    • KR1020120146841
    • 2012-12-14
    • 한국전자통신연구원
    • 윤천주김종회최중선김덕준권용환남은수
    • H04B10/07
    • H04B10/0731H04B10/613H04L27/223H04L27/364H04L2027/0083
    • The present invention relates to an IQ imbalance measuring device and an IQ imbalance measuring method and, more specifically, to an IQ imbalance measuring device and an IQ imbalance measuring method for an optical receiver. The IQ imbalance measuring device according to the present invention comprises a light generating unit generating an optical signal and a reference signal and providing an optical receiver with the optical signal and the reference signal; a graph creating unit creating a Lissajous figure by using an I signal and a Q signal output from the optical receiver in response to the optical signal and the reference signal; and a calculating unit calculating IQ imbalance of the optical receiver with reference to the Lissajous figure. The IQ imbalance measuring device and the IQ imbalance measuring method according to the present invention can measure IQ imbalance for the optical receiver with few calculations on a low speed signal.
    • 本发明涉及IQ不平衡测量装置和IQ不平衡测量方法,更具体地说,涉及一种用于光接收机的IQ不平衡测量装置和IQ不平衡测量方法。 根据本发明的IQ不平衡测量装置包括产生光信号和参考信号的光产生单元,并向光接收器提供光信号和参考信号; 图形生成单元,响应于光信号和参考信号,通过使用从光接收器输出的I信号和Q信号来创建李萨如图; 以及计算单元,参考利萨如图来计算光接收机的IQ不平衡。 根据本发明的IQ不平衡测量装置和IQ不平衡测量方法可以在低速信号上进行很少的计算来测量光接收机的IQ不平衡。