公开(公告)号：US20130264217A1

公开(公告)日：2013-10-10

申请号：US13462907

申请日：2012-05-03

申请人： Dae-Weon KIM ,  Seong-Tae JANG ,  Soon-Ryung CHOI

发明人： Dae-Weon KIM ,  Seong-Tae JANG ,  Soon-Ryung CHOI

IPC分类号： C25C1/14

CPC分类号： C25C1/14 ,  Y02P10/212

摘要： The present invention relates to a method of recovering tin and nickel compounds with high purity at a high yield from scrap steel balls for barrel plating through simple processes without using an excess amount of a solvent, the method using an eco-friendly dry pretreatment and subsequent processes including hydrogen reduction and electrolytic refining under certain conditions.

摘要翻译： 本发明涉及通过简单的工艺从废钢球中以高产率回收高纯度的锡和镍化合物的方法，而不使用过量的溶剂，该方法使用环保型干预处理和随后的方法 在某些条件下包括氢还原和电解精炼的方法。

公开(公告)号：US06984406B2

公开(公告)日：2006-01-10

申请号：US10311284

申请日：2001-06-20

申请人： Ki-Haeng Cho ,  Ki-Hong Yoon ,  Dae-Weon Kim ,  Hwa-Gyun Oh ,  Young-Phill Oh

发明人： Ki-Haeng Cho ,  Ki-Hong Yoon ,  Dae-Weon Kim ,  Hwa-Gyun Oh ,  Young-Phill Oh

IPC分类号： A61K38/46 ,  A61K1/165 ,  A23L1/03

CPC分类号： C12Y302/01078 ,  C12N9/2494 ,  C12R1/07

摘要： The present invention relates to a Bacillus sp. strain producing a mannanase which is highly active in the neutral and the acidic media. The Bacillus sp. WL-1 strain (KCTC 0800BP), which is isolated from the soil, produces in large scale the mannanase in the culture medium containing lactose and bran, wherein the mannanase is highly active in the neutral and the acidic media so said mannanase is useful as an additive for feeds and is helpful in the decomposition of hemicellulose.

摘要翻译： 本发明涉及芽孢杆菌属 产生在中性和酸性介质中高活性的甘露聚糖酶。 芽孢杆菌 从土壤中分离的WL-1菌株（KCTC 0800BP）在含有乳糖和麸皮的培养基中大量生产甘露聚糖酶，其中甘露聚糖酶在中性和酸性介质中高度活性，因此所述甘露聚糖酶可用作 用于饲料的添加剂，有助于半纤维素的分解。

公开(公告)号：US20050175309A1

公开(公告)日：2005-08-11

申请号：US10514102

申请日：2003-05-13

申请人： Young-beom Seo ,  Jae-hong Lim ,  Dae-weon Kim

发明人： Young-beom Seo ,  Jae-hong Lim ,  Dae-weon Kim

IPC分类号： G02B6/00 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  H01S3/06 ,  H01S3/067

CPC分类号： C03C13/045 ,  C03B37/01838 ,  C03B2201/34 ,  C03B2201/36 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/34 ,  C03C2201/3482 ,  C03C2201/36 ,  H01S3/06754

摘要： The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130 nm-1530 nm). According to the present invention, silica is used as a base material and the optical fiber for an optical amplifier contains Tm3+ ions and metal ions in a first core layer formed on an inner surface of a second core layer using the MCVD (Modified Chemical Vapor Deposition) method and a solution doping method whereby the practicability and productivity of the optical fiber are remarkably improved.

摘要翻译： 本发明涉及一种用于光放大器的光纤及其制造方法，其可应用于S波段区域（4130nm-1530nm）中的光传输系统。 根据本发明，使用二氧化硅作为基材，光放大用光纤在使用MCVD（改性化学气相沉积）的第二芯层的内表面上形成的第一芯层中含有Tm3 +离子和金属离子 ）方法和溶液掺杂方法，从而显着提高了光纤的实用性和生产率。

公开(公告)号：US06577193B2

公开(公告)日：2003-06-10

申请号：US09801638

申请日：2001-03-09

申请人： Dae-Weon Kim

发明人： Dae-Weon Kim

IPC分类号： H03F126

CPC分类号： H03F1/3229

摘要： A linear power amplifying apparatus is disclosed. In case where the phases of the signal amplified in the main amplifier and of the input signal are compared, the amplified signal and the input signal are distributed and then coupled with a predetermined phase difference, thereby reducing the error component and widening the tolerance band which can attenuate the carrier as much as desired, so that the phase controlling for carrier attenuation is facilitated. In addition, in case where the phase of the error signal amplified in the error amplifier and that of the input signal amplified in the main amplifier are compared, the error signal and the input signal are distributed and then coupled with a predetermined phase difference, thereby reducing the error component and widening the tolerance band which can attenuate the error as much as desired, so that the phase controlling for error attenuation is facilitated. Consequently, as the carrier cancellation and error cancellation are facilitated, the harmonics produced when the main amplifier amplifies the input signal is easily removed.

摘要翻译： 公开了一种线性功率放大装置。 在主放大器和输入信号中放大的信号的相位被比较的情况下，放大的信号和输入信号被分配，然后以预定的相位差耦合，从而减少误差分量并加宽公差带， 可以根据需要衰减载波，从而便于对载波衰减的相位控制。 此外，在比较误差放大器中放大的误差信号的相位与在主放大器中放大的输入信号的相位相比较的情况下，误差信号和输入信号被分配，然后以预定的相位差耦合，从而 减少误差分量并加宽可以根据需要衰减误差的容限带，从而便于误差衰减的相位控制。 因此，随着载波消除和误差消除的促进，主放大器放大输入信号时产生的谐波容易消除。

公开(公告)号：US07440672B2

公开(公告)日：2008-10-21

申请号：US10514102

申请日：2003-05-13

申请人： Young-beom Seo ,  Jae-hong Lim ,  Dae-weon Kim

发明人： Young-beom Seo ,  Jae-hong Lim ,  Dae-weon Kim

IPC分类号： G02B6/00 ,  H01S3/00 ,  H04B10/12

CPC分类号： C03C13/045 ,  C03B37/01838 ,  C03B2201/34 ,  C03B2201/36 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/34 ,  C03C2201/3482 ,  C03C2201/36 ,  H01S3/06754

摘要： The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130 nm-1530 nm). According to the present invention, silica is used as a base material and the optical fiber for an optical amplifier contains Tm3+ ions and metal ions in a first core layer formed on an inner surface of a second core layer using the MCVD (Modified Chemical Vapor Deposition) method and a solution doping method whereby the practicability and productivity of the optical fiber are remarkably improved.

摘要翻译： 本发明涉及一种用于光放大器的光纤及其制造方法，其可应用于S波段区域（4130nm-1530nm）中的光传输系统。 根据本发明，使用二氧化硅作为基材，光放大用光纤在使用MCVD（改性化学气相沉积）的第二芯层的内表面上形成的第一芯层中含有Tm3 +离子和金属离子 ）方法和溶液掺杂方法，从而显着提高了光纤的实用性和生产率。

公开(公告)号：US06744317B2

公开(公告)日：2004-06-01

申请号：US10025887

申请日：2001-12-26

申请人： Woo Sik Kim ,  Dae Weon Kim

发明人： Woo Sik Kim ,  Dae Weon Kim

IPC分类号： H03F100

CPC分类号： H03F1/3229 ,  H03F1/3223 ,  H03F3/24 ,  H04B2001/0441

摘要： According to a digital linearizing method, a digital input signal on a first path is operated with an output signal of a main amplifying unit, to thus detect distortion components included in the output signal of the main amplifying unit. A digital input signal on a second path is correlated with the detected distortion components, to thus adaptively control a gain of the digital input signal on the second path during the detection of the distortion components. Therefore, according to the above method, it is possible to effectively and correctly remove the distortion components included in the output signal of the main amplifying unit by amplifying the detected distortion components and coupling the amplified distortion components with the output signal of the main amplifying unit.

摘要翻译： 根据数字线性化方法，利用主放大单元的输出信号对第一路径上的数字输入信号进行操作，从而检测包括在主放大单元的输出信号中的失真分量。 第二路径上的数字输入信号与检测到的失真分量相关，从而在检测到失真分量期间自适应地控制第二路径上的数字输入信号的增益。 因此，根据上述方法，通过放大检测到的失真成分，并将放大后的失真成分与主放大部的输出信号进行耦合，能够有效且正确地除去主放大部的输出信号所包含的失真成分 。

公开(公告)号：US06684016B2

公开(公告)日：2004-01-27

申请号：US10088483

申请日：2002-07-15

申请人： Dae-weon Kim ,  Kwon-moo Lee ,  Dong-wook Lee ,  Dong-young Kim ,  Yun-chul Jung

发明人： Dae-weon Kim ,  Kwon-moo Lee ,  Dong-wook Lee ,  Dong-young Kim ,  Yun-chul Jung

IPC分类号： G02B602

CPC分类号： G02B6/03644 ,  G02B6/02257 ,  G02B6/03627 ,  G02B6/03633

摘要： Disclosed is an optical fiber having a desired dispersion value to sufficiently suppress a non-linearity phenomenon, that is, a four-wave mixing phenomenon, occurring at a channel spacing of 50 GHz while minimizing the expense consumed for a compensation for dispersion. The optical fiber satisfies optical characteristics defined by a dispersion value of 7 to 10 ps/nm-km at a wavelength of 1,550 nm, a zero dispersion wavelength of 1,450 nm or less, and a cut-off wavelength of 1,250 nm or less. The optical fiber includes a core having a desired diameter (d1) and a desired refractive index (n1), the cladding surrounding the core and having a refractive index (ncl) less than the (n1), of the core (ncl

摘要翻译： 公开了具有期望色散值的光纤，以充分抑制在50GHz的信道间隔处发生的非线性现象，即四波混频现象，同时最小化用于色散补偿的消耗。 光纤满足在1550nm波长，零色散波长为1,450nm以下，截止波长为1250nm以下的色散值为7〜10ps / nm-km的光学特性。 光纤包括具有期望直径（d1）和期望折射率（n1）的芯，围绕芯并且具有小于芯（ncl

公开(公告)号：US6069721A

公开(公告)日：2000-05-30

申请号：US974455

申请日：1997-11-20

申请人： Young Ju Oh ,  Dae Weon Kim

发明人： Young Ju Oh ,  Dae Weon Kim

IPC分类号： H04B7/155 ,  H04B10/2575 ,  H04W88/08 ,  H04B10/00

CPC分类号： H04W88/085 ,  H04B10/25753 ,  H04B10/25759

摘要： The radio frequency control circuit of the base station of a mobile communications system is constructed in a manner that the transmitting coupler branching the transmission signal to the shadow region is connected between the transmitting side power amplifier and transmitting antenna, and the receiving coupler inserting the signal received from the shadow region is connected between the receiving side low noise amplifier and splitter, to cover the shadow region using a simplified circuit configuration without a separate hardware. Therefore, a signal is transmitted by the optical antenna to a shadow region located at a long distance through the optical cable, and the signal is transmitted by the dispersion antenna to a shadow region located at close range through the coaxial cable, to provide radiocommunication service to a mobile located in the shadow region without establishing a base station in the shadow region.

摘要翻译： 移动通信系统的基站的射频控制电路的构成是，将发送信号分支到阴影区域的发送耦合器连接在发送侧功率放大器与发送天线之间，接收耦合器插入信号 从阴影区域接收的接收侧低噪声放大器和分离器之间连接，以便在没有单独的硬件的情况下使用简化的电路配置来覆盖阴影区域。 因此，信号由光天线发送到位于光缆长距离的阴影区域，信号由分散天线通过同轴电缆传送到位于近距离的阴影区域，以提供无线通信服务 到位于阴影区域中的移动站，而不在阴影区域中建立基站。