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1. 发明授权

US08649691B2 Apparatus and method for detecting optical signals 失效
标题翻译：用于检测光信号的装置和方法
公开(公告)号：US08649691B2
公开(公告)日：2014-02-11
申请号：US12687246
申请日：2010-01-14
申请人： Eui-suk Jung , Dong-min Seol , Byoung-whi Kim , Sang-soo Lee , Seung-hyun Cho
发明人： Eui-suk Jung , Dong-min Seol , Byoung-whi Kim , Sang-soo Lee , Seung-hyun Cho
IPC分类号： H04B10/06
CPC分类号： H04B10/695 , H04J14/0282 , H04L25/062 , H04L27/06
摘要： Disclosed are an apparatus and method for detecting optical signals. The optical signal detection apparatus includes: a signal receiver to convert a received optical signal into an electrical signal; a threshold decision unit to establish a mathematical model based on the electrical signal and to decide an optimized threshold value based on the mathematical model; and a signal detector to detect the electrical signal based on the optimized threshold value. Hence, since threshold values optimized adaptively according to received signals are used, a bit error rate may be lowered and accordingly detection performance may be improved.
摘要翻译：公开了一种用于检测光信号的装置和方法。光信号检测装置包括：信号接收器，用于将接收到的光信号转换为电信号; 阈值决定单元，用于基于所述电信号建立数学模型，并且基于所述数学模型来确定优化的阈值; 以及信号检测器，用于基于优化的阈值检测电信号。因此，由于使用根据接收到的信号自适应地优化阈值，所以可能降低误码率，从而可以提高检测性能。

2. 发明申请

US20100150560A1 APPARATUS AND METHOD FOR TRANSMITTING OPTICAL SIGNALS WITH ENHANCED REFLECTION SENSITIVITY IN WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK (WDM-PON) 审中-公开
标题翻译：用于发射光信号的装置和方法，其在波分复用被动光网络（WDM-PON）中具有增强的反射灵敏度
公开(公告)号：US20100150560A1
公开(公告)日：2010-06-17
申请号：US12625286
申请日：2009-11-24
申请人： Jie-hyun Lee , Seung-hyun Cho , Han-hyub Lee , Byoung-whi Kim , Jea-hoon Yu , Sang-soo Lee , Jai-sang Koh
发明人： Jie-hyun Lee , Seung-hyun Cho , Han-hyub Lee , Byoung-whi Kim , Jea-hoon Yu , Sang-soo Lee , Jai-sang Koh
IPC分类号： H04J14/02
CPC分类号： H04B10/2537 , H04J2014/0253
摘要： Disclosed are an optical transmission apparatus and method in a wavelength division multiplexing passive optical network (WDM-PON). The optical transmission apparatus outputs an optical signal by applying a DC bias current and an RF signal to a laser diode at a threshold current level of the laser diode, thereby broadening an optical spectrum of the laser diode. Accordingly, an optical link becomes less vulnerable to reflection induced noise, which contributes to improve stability and reliability of the optical link.
摘要翻译：公开了波分复用无源光网络（WDM-PON）中的光传输装置和方法。光传输装置通过在激光二极管的阈值电流电平下向激光二极管施加DC偏置电流和RF信号来输出光信号，从而使激光二极管的光谱变宽。因此，光链路变得不易受到反射感应噪声的影响，这有助于提高光链路的稳定性和可靠性。

3. 发明申请

US20100158522A1 SEED LIGHT MODULE BASED ON SINGLE LONGITUDINAL MODE OSCILLATION LIGHT SOURCE 审中-公开
标题翻译：基于单纵向振荡光源的种子光模块
公开(公告)号：US20100158522A1
公开(公告)日：2010-06-24
申请号：US12607955
申请日：2009-10-28
申请人： Seung-hyun Cho , Han-hyub Lee , Byoung-whi Kim , Sang-soo Lee , Jea-hoon Yu , Jai-sang Koh
发明人： Seung-hyun Cho , Han-hyub Lee , Byoung-whi Kim , Sang-soo Lee , Jea-hoon Yu , Jai-sang Koh
IPC分类号： H04J14/02 , H04J14/06 , H04B10/00
CPC分类号： H04J14/0282 , H04B10/506 , H04J14/02 , H04J14/06
摘要： A seed light module based on a single longitudinal mode oscillation light source is provided. The seed light module includes a multi-wavelength signal generation light source unit generating a continuous wave (CW) of different wavelengths, a multiplexer wavelength-division multiplexing the light output from the light source unit, a polarization beam splitter splitting the light of multiple wavelength components output from the multiplexer according to specific polarization components, phase modulators phase-modulating signals of a first polarization component and a second polarization component split by the polarization beam splitter onto a sine wave having a frequency and amplitude, a radio frequency (RF) signal generator generating the sine wave, a RF signal distributor distributing the generated RF signal, amplifiers amplifying the distributed RF signals, and a polarization beam combiner combining the lights phase-modulated by the respective phase modulators and providing the combined light as a seed light output.
摘要翻译：提供了基于单个纵模式振荡光源的种子光模块。种子光模块包括产生不同波长的连续波（CW）的多波长信号产生光源单元，从光源单元输出的光的复用波分复用，将多个波长的光分离的偏振分束器根据特定偏振分量输出的分量，将由偏振分束器分离的第一偏振分量和第二偏振分量的相位调制信号的相位调制信号转换成具有频率和幅度的正弦波，射频（RF）信号产生正弦波的发生器，分配所产生的RF信号的RF信号分配器，放大分布式RF信号的放大器以及组合由各个相位调制器相位调制的光并将组合光提供为种子光输出的偏振光束组合器。

4. 发明申请

US20100158526A1 OPTICAL TRANSCEIVER SUITABLE FOR USE IN HYBRID, PASSIVE OPTICAL NETWORK 审中-公开
标题翻译：适用于混合，被动光网络的光收发器
公开(公告)号：US20100158526A1
公开(公告)日：2010-06-24
申请号：US12638696
申请日：2009-12-15
申请人： Han-hyub Lee , Byoung-whi Kim , Seung-hyun Cho , Jea-hoon Yu , Jai-sang Koh
发明人： Han-hyub Lee , Byoung-whi Kim , Seung-hyun Cho , Jea-hoon Yu , Jai-sang Koh
IPC分类号： H04J14/00
CPC分类号： H04B10/272 , H04J14/0246 , H04J14/025 , H04J14/0252 , H04J14/0254 , H04J14/0282 , H04J2014/0253
摘要： Provided is an apparatus for connecting a wavelength division multiplexing passive optical network (WDM-PON) to a time division multiplexing passive optical network (TDM-PON). In a hybrid, passive optical network which is a combination of the WDM-PON and the TDM-PON, the apparatus is formed at a subscriber side for matching the WDM-PPN and the TDM-PON. Accordingly, a passive remote mode can be implemented as a passive node not an active node. Therefore, the entire optical network can be efficiently operated. In addition, since the apparatus located on the subscriber side uses a wavelength-tunable light source, any dependency on the wavelength of a WDM-PON optical signal is removed.
摘要翻译：提供了一种用于将波分复用无源光网络（WDM-PON）连接到时分复用无源光网络（TDM-PON）的装置。在作为WDM-PON和TDM-PON的组合的混合无源光网络中，该设备形成在用户侧，用于匹配WDM-PPN和TDM-PON。因此，被动远程模式可以被实现为被动节点而不是主动节点。因此，可以有效地操作整个光网络。此外，由于位于用户侧的装置使用波长可调光源，因此消除了对WDM-PON光信号的波长的任何依赖。

5. 发明授权

US08364043B2 Method and apparatus for controlling reflective semiconductor optical amplifier (RSOA) 有权
标题翻译：用于控制反射半导体光放大器（RSOA）的方法和装置
公开(公告)号：US08364043B2
公开(公告)日：2013-01-29
申请号：US12633006
申请日：2009-12-08
申请人： Jie-hyun Lee , Seung-hyun Cho , Byoungi-whi Kim , Jea-hoon Yu , Jai-sang Koh
发明人： Jie-hyun Lee , Seung-hyun Cho , Byoungi-whi Kim , Jea-hoon Yu , Jai-sang Koh
IPC分类号： H04B10/00
CPC分类号： H04B10/2587
摘要： A method and apparatus for controlling a reflective semiconductor optical amplifier (RSOA) are provided. The RSOA control apparatus sets a threshold current at which a light source starts to oscillate to be constant regardless of a wavelength of seed light by controlling a driving temperature for driving a RSOA, and adjusts an optical characteristic which is differently output for each wavelength of seed light to be constant by controlling a driving current.
摘要翻译：提供了一种用于控制反射半导体光放大器（RSOA）的方法和装置。 RSOA控制装置通过控制用于驱动RSOA的驱动温度来设定光源开始振荡的阈值电流，而与种子光的波长无关，并调整对种子的每个波长而不同地输出的光学特性光通过控制驱动电流而恒定。

6. 发明授权

US07295001B2 Magnetostrictive transducer using tailed patches and apparatus for measuring elastic wave using the magnetostrictive transducer 有权
标题翻译：使用尾部贴片的磁致伸缩传感器和使用磁致伸缩传感器测量弹性波的装置
公开(公告)号：US07295001B2
公开(公告)日：2007-11-13
申请号：US11092976
申请日：2005-03-30
申请人： Yoon-young Kim , Chan-il Park , Seung-hyun Cho , Woo-chul Kim
发明人： Yoon-young Kim , Chan-il Park , Seung-hyun Cho , Woo-chul Kim
IPC分类号： G01B7/24 , G01L3/00
CPC分类号： G01L3/102 , B06B1/08 , G01D5/485 , G01L3/105 , G01N2291/02827
摘要： A magnetostrictive transducer generating a torsional wave in a subject having a predetermined section and measuring a torsional wave propagating in the subject. In the magnetostrictive transducer having a ferromagnetic patch attached to a predetermined position of a subject, a cylindrical insulator installed around the periphery of the ferromagnetic patch, and a coil wound around the cylindrical surface of the insulator, a torsional wave is generated based on a magnetostrictive effect to then be induced to the subject when current is applied to the coil. The ferromagnetic patch includes a strip unit attached to the subject in an inclined manner with respect to an axial direction of the subject and transferring the torsional wave to the subject; and tail units formed at opposite ends of the strip unit and concentrating a magnetic flux on the strip unit when current is applied to the coil.
摘要翻译：一种磁致伸缩换能器，其在受试者中产生具有预定部分的扭转波，并测量在受试者中传播的扭转波。在具有附着到被检体的预定位置的铁磁性贴片的磁致伸缩传感器中，安装在铁磁贴片的周围的圆柱形绝缘体和缠绕在绝缘体的圆柱形表面上的线圈，基于磁致伸缩产生扭转波当电流施加到线圈时，效应然后被感应到被摄体。所述铁磁贴片包括条带单元，其相对于所述受试者的轴向以倾斜的方式附接到所述对象，并将所述扭转波转移到所述对象; 以及形成在带状单元的相对端处的尾部单元，并且当电流施加到线圈时，将磁通集中在带状单元上。

7. 发明申请

US20060145692A1 Magnetostrictive transducer using tailed patches and apparatus for measuring elastic wave using the magnetostrictive transducer 有权
标题翻译：使用尾部贴片的磁致伸缩传感器和使用磁致伸缩传感器测量弹性波的装置
公开(公告)号：US20060145692A1
公开(公告)日：2006-07-06
申请号：US11092976
申请日：2005-03-30
申请人： Yoon-young Kim , Chan-il Park , Seung-hyun Cho , Woo-chul Kim
发明人： Yoon-young Kim , Chan-il Park , Seung-hyun Cho , Woo-chul Kim
IPC分类号： G01B7/14 , G01B7/30 , G01R33/02
CPC分类号： G01L3/102 , B06B1/08 , G01D5/485 , G01L3/105 , G01N2291/02827
摘要： Provided is a magnetostrictive transducer generating a torsional wave in a subject having a predetermined section and measuring a torsional wave propagating in the subject. In the magnetostrictive transducer having a ferromagnetic patch attached to a predetermined position of a subject, a cylindrical insulator installed around the periphery of the ferromagnetic patch, and a coil wound around the cylindrical surface of the insulator, a torsional wave is generated based on a magnetostrictive effect to then be induced to the subject when current is applied to the coil. The ferromagnetic patch includes a strip unit attached to the subject in an inclined manner with respect to an axial direction of the subject and transferring the torsional wave to the subject; and tail units formed at opposite ends of the strip unit and concentrating a magnetic flux on the strip unit when current is applied to the coil.
摘要翻译：提供了一种磁致伸缩换能器，其在具有预定部分的受检者中产生扭转波，并测量在受试者中传播的扭转波。在具有附着到被检体的预定位置的铁磁性贴片的磁致伸缩传感器中，安装在铁磁贴片的周围的圆柱形绝缘体和缠绕在绝缘体的圆柱形表面上的线圈，基于磁致伸缩产生扭转波当电流施加到线圈时，效应然后被感应到被摄体。所述铁磁贴片包括条带单元，其相对于所述受试者的轴向以倾斜的方式附接到所述对象，并将所述扭转波转移到所述对象; 以及形成在带状单元的相对端处的尾部单元，并且当电流施加到线圈时，将磁通集中在带状单元上。

8. 发明申请

US20100150574A1 METHOD AND APPARATUS FOR CONTROLLING REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER (RSOA) 有权
标题翻译：用于控制反射半导体光放大器（RSOA）的方法和装置
公开(公告)号：US20100150574A1
公开(公告)日：2010-06-17
申请号：US12633006
申请日：2009-12-08
申请人： Jie-hyun LEE , Seung-hyun Cho , Byoungi-whi Kim , Jea-hoon Yu , Jai-sang Koh
发明人： Jie-hyun LEE , Seung-hyun Cho , Byoungi-whi Kim , Jea-hoon Yu , Jai-sang Koh
IPC分类号： H04B10/00
CPC分类号： H04B10/2587
摘要： A method and apparatus for controlling a reflective semiconductor optical amplifier (RSOA) are provided. The RSOA control apparatus sets a threshold current at which a light source starts to oscillate to be constant regardless of a wavelength of seed light by controlling a driving temperature for driving a RSOA, and adjusts an optical characteristic which is differently output for each wavelength of seed light to be constant by controlling a driving current.
摘要翻译：提供了一种用于控制反射半导体光放大器（RSOA）的方法和装置。 RSOA控制装置通过控制用于驱动RSOA的驱动温度来设定光源开始振荡的阈值电流，而与种子光的波长无关，并调整对种子的每个波长而不同地输出的光学特性光通过控制驱动电流而恒定。

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