公开(公告)号：US5784170A

公开(公告)日：1998-07-21

申请号：US646121

申请日：1996-05-07

申请人： Chang Soo Park ,  Dong Ho Lee

发明人： Chang Soo Park ,  Dong Ho Lee

IPC分类号： H04J14/00 ,  H04B10/50 ,  H04B10/572 ,  H04J14/02

CPC分类号： H04J14/0224 ,  H04B10/505 ,  H04B10/506 ,  H04B10/572

摘要： The present invention relates to an apparatus for generating quasi equally spaced multi-channel frequencies using a frequency shifter. The optical multi-channel transmission system using OFDM or WDM can be provided with quasi equally spaced(unequally sequential spaced) frequencies on the basis of the functional relation among the frequency differences(n.sub.ij =n.sub.i -n.sub.j (i=j=1,2,3, . . . n)) of any two neighboring channels. Namely, after generating equally spaced frequencies by using a reference resonator, such as a Fiber Fabry Perot(FFP) resonator, each of the equally spaced frequencies is sequentially shifted by a frequency shifter, which generates and controls the quasi equally spaced(unequally sequential spaced) frequencies in order to effectively avoid crosstalk due to FFWM, and fully make use of the transmission bandwidth belonging to the low dispersion region of the optical fiber. the effect of the present invention will be apparent as follows: by easily generating and controlling quasi equally spaced frequencies having a functional relation between two adjacent channels, crosstalk due to Fiber Four Wave Mixing(FFWM) is effectively avoided, and the transmission bandwidth in the region of the low dispersion is fully utilized. Furthermore, the compatibility is easily accomplished.

摘要翻译： 本发明涉及一种使用移频器产生准等距多声道频率的装置。 基于频差之间的功能关系，可以使用OFDM或WDM的光多通道传输系统提供准等间隔（不等间隔的）频率（nij = ni-nj（i = j = 1,2， 3，...，n））。 也就是说，在通过使用参考谐振器（例如光纤法布里珀罗（FFP））谐振器产生等间隔的频率之后，每个等间隔的频率被移频器顺序移位，该移频器产生并控制准等距间隔（不等间隔的 ）频率，以便有效地避免由于FFWM引起的串扰，并充分利用属于光纤低色散区域的传输带宽。 本发明的效果将显而易见：通过容易地产生和控制具有两个相邻通道之间的功能关系的准等间隔的频率，有效地避免了由于光纤四波混频（FFWM）引起的串扰，并且传输带宽 低分散的区域被充分利用。 此外，容易实现兼容性。

公开(公告)号：US07820546B2

公开(公告)日：2010-10-26

申请号：US12347420

申请日：2008-12-31

申请人： Dong Ha Jung ,  Seung Jin Yeom ,  Baek Mann Kim ,  Chang Soo Park ,  Jeong Tae Kim ,  Nam Yeal Lee

发明人： Dong Ha Jung ,  Seung Jin Yeom ,  Baek Mann Kim ,  Chang Soo Park ,  Jeong Tae Kim ,  Nam Yeal Lee

IPC分类号： H01L21/4763

CPC分类号： H01L21/28518

摘要： A method for manufacturing a semiconductor device includes forming an insulation layer having a contact hole on a semiconductor substrate. A metal silicide layer is deposited on a surface of the contact hole and the insulation layer to have a concentration gradient that changes from a silicon-rich composition to a metal-rich composition, with the lower portion of the metal silicide layer having the silicon-rich composition and the upper portion of the metal silicide layer having the metal-rich composition. The metal silicide layer is then annealed so that the compositions of metal and silicon in the metal silicide layer become uniform.

摘要翻译： 一种制造半导体器件的方法包括在半导体衬底上形成具有接触孔的绝缘层。 金属硅化物层沉积在接触孔和绝缘层的表面上，具有从富含硅的组合物变为富含金属的组合物的浓度梯度，金属硅化物层的下部具有硅 - 富金属组合物和具有富金属组合物的金属硅化物层的上部。 然后对金属硅化物层进行退火，使得金属硅化物层中的金属和硅的组成变得均匀。

公开(公告)号：US07680416B2

公开(公告)日：2010-03-16

申请号：US11024830

申请日：2004-12-30

申请人： Swook Hann ,  Chang Soo Park

发明人： Swook Hann ,  Chang Soo Park

IPC分类号： H01S3/092 ,  G02B6/26

CPC分类号： H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

摘要： A wavelength division multiplexed-passive optical network includes an optical line terminal for generating downstream optical signals of discrete wavelengths and for receiving upstream optical signals of discrete wavelengths, a remote node, coupled to the optical line terminal, a wavelength division unit settled to reflect a predetermined wavelength, and a plurality of optical network units. Each optical network unit has an optical source which is oscillated in a multi-mode and is self-injection locked by the predetermined wavelength provided thereto, thereby to generate the upstream optical signal in a single mode to be provided to the remote node.

摘要翻译： 波分复用无源光网络包括：用于生成离散波长的下行光信号并用于接收离散波长的上行光信号的光线路终端，耦合到光线路终端的远端节点，被安置成反射 预定波长和多个光网络单元。 每个光网络单元具有以多模式振荡的光源，并且被提供给其的预定波长的自注入锁定，从而以单一模式产生将被提供给远程节点的上游光信号。

公开(公告)号：US20090123148A1

公开(公告)日：2009-05-14

申请号：US11916881

申请日：2006-06-09

申请人： Chang Soo Park ,  Soo Wook Han ,  Tae Young Kim ,  Hyun Ho Yun

发明人： Chang Soo Park ,  Soo Wook Han ,  Tae Young Kim ,  Hyun Ho Yun

IPC分类号： H04B17/00

CPC分类号： H04L12/413 ,  H04L12/2856 ,  H04L12/40006 ,  H04L43/00 ,  H04Q11/0067 ,  H04Q2011/0079

摘要： The invention relates to an Ethernet-based all-optical carrier sense multiple access/collision detection apparatus and method, and more particularly, to an apparatus and method capable of checking by using mutual gain saturation whether distortion occurs in two or more optical signals due to mutual interference when the optical signals pass through a semiconductor optical amplifier (SOA) at the same time, amplifying the optical signals transmitted in the upward direction when no distortion occurs in the optical signals, and monitoring the occupation of a plurality of subscribers with respect to a common network when the plurality of subscribers want to use an optical Ethernet network. The Ethernet-based all-optical carrier sense multiple access/collision detection apparatus according to the invention includes: a plurality of optical network units (ONUs) that carry different optical signals on upstream waves λ and transmit the upstream waves λ; a power splitter (PS) that multiplexes the optical signals and transmits the multiplexed optical signals; and a central office (CO) that checks whether the multiplexed optical signals are distorted, amplifies some of the checked optical signals, returns the other optical signals, and monitors the occupation of the plurality of optical network units with respect to a common network. According to the invention, it is possible to dynamically check whether a collision between the optical signals passing through the common network occurs and whether the optical signals are successfully transmitted. Further, since the invention uses an all-optical type, the existing electric media access control (MAC) device is not needed, which results in a high-speed operation. In addition, the invention can be used for a plurality of subscribers using an inexpensive light source. Thus, the invention can be effectively used for an optical communication industry.

公开(公告)号：US07596325B2

公开(公告)日：2009-09-29

申请号：US11024824

申请日：2004-12-30

申请人： Chang Soo Park ,  Yun Jong Kim ,  Chung Ghiu Lee

发明人： Chang Soo Park ,  Yun Jong Kim ,  Chung Ghiu Lee

IPC分类号： H04J14/08 ,  H04B10/12

CPC分类号： H01S3/06791 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/06712 ,  H01S3/08031 ,  H01S3/1121 ,  H01S3/1608

摘要： A method and an apparatus for pulse-amplitude equalization of rational harmonic mode-locked optical pulses provides modulation voltages greater than a switching voltage of a dual-electorde Mach-Zehnder modulator to electrodes of the Mach-Zehnder modulator, so that rational harmonic mode-locked optical pulses experience the same transmission coefficient through the Mach-Zehnder modulator, to thereby achieve amplitude-equalized rational harmonic mode-locked optical pulse trains.

摘要翻译： 用于合理谐波锁模光脉冲的脉冲幅度均衡的方法和装置提供的调制电压大于马赫曾德尔调制器电极上的双电马赫 - 曾德尔调制器的开关电压，因此， 锁相光脉冲通过Mach-Zehnder调制器经历相同的传输系数，从而实现幅度均衡的有理谐波锁模光脉冲串。

公开(公告)号：US20130279900A1

公开(公告)日：2013-10-24

申请号：US13590537

申请日：2012-08-21

申请人： Jong Deog Kim ,  Jong Jin Lee ,  Chang Soo Park

发明人： Jong Deog Kim ,  Jong Jin Lee ,  Chang Soo Park

IPC分类号： H04J14/02

CPC分类号： H04J14/0212 ,  H04J14/022 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0265 ,  H04J14/0268 ,  H04J14/0282 ,  H04J14/0283 ,  H04J14/0286

摘要： An optical line terminal (OLT) of a passive optical network (PON) detects a fault in an optical path configured as a single optical fiber core having an annular shape, divides the optical path into a right path and a left path having bi-directionality based on the fault position in which the fault has occurred, demultiplexes a plurality of downstream optical wavelength signals to be transmitted to at least one optical network terminal (ONT) of each group into an optical wavelength signal of the right path and an optical wavelength signal of the left path according to the position in which the fault has occurred, and outputs the same to at least one of the ONTs of each group.

摘要翻译： 无源光网络（PON）的光线路终端（OLT）检测配置为具有环形形状的单个光纤芯的光路中的故障，将光路划分为右路径和具有双向性的左路径 基于发生故障的故障位置，将要发送到各组的至少一个光网络终端（ONT）的多个下行光波长信号解复用为右路径的光波长信号和光波长信号 根据发生故障的位置的左路径输出，并将其输出到每组的至少一个ONT。

公开(公告)号：US08273667B2

公开(公告)日：2012-09-25

申请号：US12906434

申请日：2010-10-18

申请人： Chang Soo Park

发明人： Chang Soo Park

IPC分类号： H01L21/31

CPC分类号： H01L21/31695 ,  H01L21/02126 ,  H01L21/02203 ,  H01L21/02362 ,  H01L21/7682 ,  H01L21/76835 ,  H01L2221/1036 ,  H01L2221/1047

摘要： The present invention related to a method for manufacturing a semiconductor device. More particularly, this method describes how to manufacture a semiconductor device having a porous, low dielectric constant layer formed between metal lines, comprising an insulation layer enveloping fillers.

摘要翻译： 本发明涉及半导体器件的制造方法。 更具体地，该方法描述了如何制造具有形成在金属线之间的多孔，低介电常数层的半导体器件，其包括绝缘层包封填料。

公开(公告)号：US07851285B2

公开(公告)日：2010-12-14

申请号：US11771477

申请日：2007-06-29

申请人： Chang Soo Park

发明人： Chang Soo Park

IPC分类号： H01L21/336

CPC分类号： H01L29/792 ,  H01L29/66833

摘要： A method for fabricating a non-volatile memory device includes forming a charge tunneling layer composed of a hafnium silicate (HfSixOyNz) layer on a semiconductor substrate. A charge trapping layer composed of a hafnium oxide nitride (HfOxNy) layer is formed on the charge tunneling layer. A charge blocking layer composed of a hafnium oxide layer is formed on the charge trapping layer. A gate layer is formed on the charge blocking layer. A non-volatile memory device fabricated by the method is also disclosed.

摘要翻译： 一种用于制造非易失性存储器件的方法包括在半导体衬底上形成由硅酸铪（HfSixOyNz）层构成的电荷隧穿层。 在电荷隧道层上形成由氧化铪氮化物（HfO x N y）层构成的电荷俘获层。 在电荷捕获层上形成由氧化铪层构成的电荷阻挡层。 在电荷阻挡层上形成栅极层。 还公开了通过该方法制造的非易失性存储器件。

公开(公告)号：US06656284B1

公开(公告)日：2003-12-02

申请号：US10187090

申请日：2002-06-28

申请人： Chul Ju Hwang ,  Kyung Sik Shim ,  Chang Soo Park

发明人： Chul Ju Hwang ,  Kyung Sik Shim ,  Chang Soo Park

IPC分类号： H01L2130

CPC分类号： C23C16/45574 ,  C23C16/45578 ,  C23C16/45589 ,  H01J37/3244 ,  Y10T428/24273

摘要： Disclosed is a semiconductor device manufacturing apparatus provided with a rotational gas injector for supplying source gases at an upper portion of a reaction chamber. According to the invention, source gases are injected from the upside of the wafers through the rotational type gas injector, and non-reacted gases are exhausted into the downside space of the wafers, so that lowering in the thickness uniformity of a thin film due to the horizontal flow of source gases provided in the conventional art decrease remarkably. Accordingly, although multiple wafers are loaded in a single reaction chamber, a thin film having very high thickness uniformity can be deposited with respect to all the wafers, thereby capable of enhancing the productivity.

摘要翻译： 公开了一种半导体器件制造装置，其具有用于在反应室的上部供应源气体的旋转气体注入器。 根据本发明，源气体通过旋转式气体注入器从晶片的上侧注入，而未反应的气体被排出到晶片的下侧空间中，从而使薄膜的厚度均匀性降低，由于 传统技术中提供的源气体的水平流动显着减少。 因此，虽然多个晶片装载在单个反应室中，但是可以相对于所有的晶片沉积具有非常高的厚度均匀性的薄膜，从而能够提高生产率。

公开(公告)号：US06374386B1

公开(公告)日：2002-04-16

申请号：US09378371

申请日：1999-08-20

申请人： Jae-Yeol Kim ,  Chang Soo Park

发明人： Jae-Yeol Kim ,  Chang Soo Park

IPC分类号： H03M1303

CPC分类号： H03M13/2993 ,  H03M13/299 ,  H03M13/356 ,  H03M13/6356

摘要： A turbo coding device includes a bit inserter for inserting at east one specific bit at a last position of a data bit stream being input to a first constituent encoder, and inserting at least one specific bit at a last position of an interleaved data bit stream being input to a second constituent encoder; the first constituent encoder for encoding the specific bit-inserted data bits to generate first parity symbols; an interleaver for interleaving the specific bit-inserted data bits; the second constituent encoder for encoding the interleaved data bits to generate second parity symbols; and a multiplexer for multiplexing outputs of the bit inserter, the first constituent encoder and the second constituent encoder.

摘要翻译： 涡轮编码装置包括位插入器，用于在东端插入一个数据位流的最后位置处的一个特定比特，输入到第一组成编码器，并且在交织的数据比特流的最后位置插入至少一个特定比特， 输入到第二组成编码器; 用于对特定位插入数据位进行编码以产生第一奇偶校验符号的第一组合编码器; 用于交织特定位插入数据位的交织器; 用于对交织的数据位进行编码以产生第二奇偶校验符号的第二组合编码器; 以及多路复用器，用于复用比特插入器，第一构成编码器和第二构成编码器的输出。