公开(公告)号：US07902889B2

公开(公告)日：2011-03-08

申请号：US11819811

申请日：2007-06-29

Applicant: Seong-Jun Lee ,  Min-Young You

Inventor： Seong-Jun Lee ,  Min-Young You

IPC: H03L7/06

CPC classification number: H03L7/0814

Abstract: A delay locked loop includes a buffer for outputting an internal clock by buffering an external clock, a delay block for delaying the internal clock in response to one of control signals or a selection signal, thereby outputting a delayed clock, a control signal generation block for generating at least one control signal according to a phase difference between the internal clock and a feedback clock generated by delaying the delayed clock by a delay time taken for the internal clock to be output, a selection block for outputting at least one selection signal in response to a signal instructing an off mode of the delay locked loop, thereby controlling a delay time in the delay block, and an output driver for driving the delayed clock.

Abstract translation: 延迟锁定环包括缓冲器，用于通过缓冲外部时钟来输出内部时钟;延迟块，用于响应于控制信号之一或选择信号延迟内部时钟，从而输出延迟的时钟;控制信号产生块，用于 根据内部时钟与通过延迟延迟时钟产生的反馈时钟之间的相位差产生至少一个控制信号，所述延迟时间将被输出用于输出内部时钟的延迟时间;响应于输出至少一个选择信号的选择块 指示延迟锁定环的关闭模式的信号，从而控制延迟块中的延迟时间，以及用于驱动延迟时钟的输出驱动器。

公开(公告)号：US07872510B2

公开(公告)日：2011-01-18

申请号：US12346683

申请日：2008-12-30

Applicant: Seong-Jun Lee

Inventor： Seong-Jun Lee

IPC: H03K3/017 ,  H03K5/04 ,  H03K7/08

CPC classification number: H03K5/1565 ,  G11C7/22 ,  G11C7/222

Abstract: A duty cycle correction circuit of a semiconductor memory apparatus includes a duty ratio correcting unit configured to correct a duty ratio of a clock signal according to levels of a first reference voltage and a second reference voltage, and to output the clock signal as a correction clock signal, a duty ratio detecting unit configured to count first and second counting signals in response to a duty ratio of the correction clock signal when a pump enable signal is enabled, a pump enable signal generating unit configured to generate the pump enable signal in response to the duty ratio of the correction clock signal, and a reference voltage generating unit configured to generate the first and second reference voltages in response to the first and second counting signals.

Abstract translation: 半导体存储装置的占空比校正电路包括占空比校正单元，其被配置为根据第一参考电压和第二参考电压的电平来校正时钟信号的占空比，并将时钟信号作为校正时钟输出 信号，占空比检测单元，被配置为当启用泵使能信号时响应于所述校正时钟信号的占空比来对第一和第二计数信号进行计数;泵使能信号生成单元，被配置为响应于 校正时钟信号的占空比，以及被配置为响应于第一和第二计数信号而产生第一和第二参考电压的参考电压产生单元。

公开(公告)号：US20100137664A1

公开(公告)日：2010-06-03

申请号：US12452715

申请日：2008-07-18

Applicant: Hee Du Lee ,  Kyung Jong Oh ,  Min Su Ko ,  Min Gyoo Park ,  Seong Jun Lee ,  Yoon Jae Yim ,  Seung Hoon Oh ,  Tae Jin Kim ,  Yong Seung Kim ,  Deuk Soo Park ,  Hong Chan Kim

Inventor： Hee Du Lee ,  Kyung Jong Oh ,  Min Su Ko ,  Min Gyoo Park ,  Seong Jun Lee ,  Yoon Jae Yim ,  Seung Hoon Oh ,  Tae Jin Kim ,  Yong Seung Kim ,  Deuk Soo Park ,  Hong Chan Kim

IPC: C07C2/38 ,  B01J10/00

CPC classification number: C10G67/04 ,  C07C7/08 ,  C07C11/107 ,  C10G21/00 ,  C10G21/28 ,  C10G45/32 ,  C10G2300/44 ,  C10G2400/20 ,  C07C11/167

Abstract: Disclosed is a method of recovering 1,3-butadiene from a C4 stream containing butane, isobutane, 2-butene, 1-butene, isobutene, butadiene and acetylene. The process of recovering highly pure 1,3-butadiene includes acetylene conversion for selectively converting acetylene through liquid-phase hydrogenation, so that the acetylene content is decreased to 70 wt ppm or less, and 1,3-butadiene extraction using an extractive distillation column, a pre-separator, a solvent stripping column, a solvent recovery column, and a purification column. Through the acetylene conversion, the concentration of vinylacetylene is decreased to 70 wt ppm or less, after which 1,3-butadiene is recovered using only one extractive distillation column, thereby considerably decreasing the degree of utility and the loss of streams in the course of extraction. The number of units necessary for the process is decreased, thus remarkably reducing the time during which impurities can accumulate in a processing unit.

Abstract translation: 公开了从含有丁烷，异丁烷，2-丁烯，1-丁烯，异丁烯，丁二烯和乙炔的C4流中回收1,3-丁二烯的方法。 回收高纯度1,3-丁二烯的方法包括乙炔转化，用于通过液相氢化选择性地转化乙炔，使得乙炔含量降低至70重量ppm以下，使用萃取蒸馏塔进行1,3-丁二烯萃取 ，预分离器，溶剂汽提塔，溶剂回收塔和纯化塔。 通过乙炔转化，乙烯基乙炔的浓度降低至70重量ppm以下，此后仅使用一个萃取蒸馏塔回收1,3-丁二烯，从而大大降低了在过程中的效用和流失 萃取。 该方法所需的单元数量减少，从而显着地减少了杂质在处理单元中积累的时间。

公开(公告)号：US20100048971A1

公开(公告)日：2010-02-25

申请号：US12593249

申请日：2008-03-28

Applicant: Jong-Nam Kim ,  Jong-Ho Park ,  Seong-Jun Lee ,  Min-Su Ko ,  Hee Tae Beum ,  Jongkee Park ,  Chang Hyun Ko ,  Sang Sup Han ,  Soon-Haeng Cho

Inventor： Jong-Nam Kim ,  Jong-Ho Park ,  Seong-Jun Lee ,  Min-Su Ko ,  Hee Tae Beum ,  Jongkee Park ,  Chang Hyun Ko ,  Sang Sup Han ,  Soon-Haeng Cho

IPC: C07C7/04 ,  C07C7/11

CPC classification number: B01D53/047 ,  B01D2256/24 ,  B01D2257/7022 ,  B01D2259/40054 ,  B01D2259/4006 ,  B01D2259/40062 ,  B01D2259/40067 ,  B01D2259/403 ,  C07C7/13 ,  C07C11/08

Abstract: The present invention relates to a method and an apparatus for the separation of C4 olefins (butene-1, trans-2-butene, cis-2-butene, etc.) and C4 paraffins (normal butane, isobutane, etc.) from a C4 hydrocarbon mixed gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. The method of the present invention produces C4 olefins with high purity by introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbent selectively adsorbing olefins to adsorb C4 olefins and to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins adsorbed on the adsorption tower with a desorbent (C5 hydrocarbon, C6 hydrocarbon, etc.), and then separating the C4 olefin and the desorbent by a distillation process. The apparatus of the present invention is composed of several adsorption towers loaded with an adsorbent which selectively adsorb olefins and two distillation towers for the separation of the mixture gases of olefins/desorbents and paraffins/desorbents respectively, The basic operating process of the adsorption tower comprises a adsorption step of selectively adsorbing C4 olefin from the feeding mixture, a C4 olefin rinse step of removing a small amount of C4 paraffins adsorbed together with C4 olefins, and a desorption step of desorbing C4 olefins by using a desorbent, and further comprises a pressure equalization step, a cocurrent depressurization step, and a accumulation pressure step in order to increase the yield and concentration of olefins depending on the operation pressure of the adsorption tower. The desorbent discharged from the process together with olefins or paraffins is separated in the distillation tower and then recycled.

Abstract translation: 本发明涉及一种用于分离C4烯烃（丁烯-1，反式-2-丁烯，顺-2-丁烯等）和C4链烷烃（正丁烷，异丁烷等）的方法和装置， 包括丁烯-1，反式-2-丁烯，顺式-2-丁烯，正丁烷，异丁烷等的C4烃混合气体。本发明的方法通过将气态C 4混合物引入吸附塔中来生产高纯度的C4烯烃 负载吸附剂选择性吸附烯烃以吸附C4烯烃并将C4链烷烃排出到塔的出口，用解吸剂（C5烃，C6烃等）解吸吸附在吸附塔上的C4烯烃，然后分离C4烯烃 和通过蒸馏方法的解吸剂。 本发明的装置由多个吸附塔组成，吸附塔分别选择性地吸附烯烃和两个蒸馏塔，用于分离烯烃/脱附剂和石蜡/脱附剂的混合气体。吸附塔的基本操作过程包括 从进料混合物中选择性吸附C4烯烃的吸附步骤，除去少量与C4烯烃一起吸附的C4链烷烃的C4烯烃漂洗步骤，以及通过使用脱附剂解吸C4烯烃的解吸步骤，还包括压力 平衡步骤，并流减压步骤和累积压力步骤，以根据吸附塔的操作压力提高烯烃的产率和浓度。 从该方法中排出的解吸剂与烯烃或链烷烃一起在蒸馏塔中分离，然后再循环。

公开(公告)号：US20090302912A1

公开(公告)日：2009-12-10

申请号：US12346683

申请日：2008-12-30

Applicant: Seong Jun Lee

Inventor： Seong Jun Lee

IPC: H03K3/017

CPC classification number: H03K5/1565 ,  G11C7/22 ,  G11C7/222

Abstract: A duty cycle correction circuit of a semiconductor memory apparatus includes a duty ratio correcting unit configured to correct a duty ratio of a clock signal according to levels of a first reference voltage and a second reference voltage, and to output the clock signal as a correction clock signal, a duty ratio detecting unit configured to count first and second counting signals in response to a duty ratio of the correction clock signal when a pump enable signal is enabled, a pump enable signal generating unit configured to generate the pump enable signal in response to the duty ratio of the correction clock signal, and a reference voltage generating unit configured to generate the first and second reference voltages in response to the first and second counting signals.

Abstract translation: 半导体存储装置的占空比校正电路包括占空比校正单元，其被配置为根据第一参考电压和第二参考电压的电平来校正时钟信号的占空比，并将时钟信号作为校正时钟输出 信号，占空比检测单元，被配置为当启用泵使能信号时响应于所述校正时钟信号的占空比来对第一和第二计数信号进行计数;泵使能信号生成单元，被配置为响应于 校正时钟信号的占空比，以及被配置为响应于第一和第二计数信号而产生第一和第二参考电压的参考电压产生单元。

公开(公告)号：US20090234140A1

公开(公告)日：2009-09-17

申请号：US11721366

申请日：2004-12-20

Applicant: Jae Suk Koh ,  Chun Young Kim ,  Byoung In Lee ,  Sang Soo Lee ,  Seong Jun Lee ,  Jong Ho Lim ,  Seon Yeong Jeon ,  Jun Bae Hong

Inventor： Jae Suk Koh ,  Chun Young Kim ,  Byoung In Lee ,  Sang Soo Lee ,  Seong Jun Lee ,  Jong Ho Lim ,  Seon Yeong Jeon ,  Jun Bae Hong

IPC: C07D495/04

CPC classification number: C07D495/04 ,  C07B57/00

Abstract: Disclosed herein is a method of producing an optically active thiophene-based compound using a simulated moving bed adsorption separation process, and more specifically, a method of continuously separating a racemic thiophene-based compound into its optically active thiophene-based compounds having high purity, through optical resolution using the simulated moving bed process. According to the method of the current invention, a racemic mixture of a thiophene-based compound can be continuously separated into its optically active thiophene-based compounds having high purity, which is an intermediate of optically active dorzolamide acting as a topical therapeutic agent for glaucoma, using a simulated moving bed adsorption separation technique, thereby increasing industrial usability.

Abstract translation: 本文公开了使用模拟移动床吸附分离方法制造光学活性噻吩类化合物的方法，更具体地说，是将外消旋噻吩类化合物连续分离成其高纯度的光学活性噻吩类化合物的方法， 通过使用模拟移动床过程的光学分辨率。 根据本发明的方法，可以将噻吩类化合物的外消旋混合物连续分离成其高纯度的光学活性噻吩类化合物，其是用作青光眼的局部治疗剂的光学活性多吡咯酰胺的中间体 ，使用模拟移动床吸附分离技术，从而提高工业可用性。

公开(公告)号：US20090115474A1

公开(公告)日：2009-05-07

申请号：US11964821

申请日：2007-12-27

Applicant: Seong Jun LEE

Inventor： Seong Jun LEE

IPC: H03L7/06

CPC classification number: H03L7/0812

Abstract: A clock synchronization circuit and a clock synchronization method which generate an internal clock synchronized to an external clock is presented. The circuit and method include a clock enable control circuit generating a clock enable control signal controlled by a power supply voltage and a power-down signal. The circuit and method also include a clock generating circuit receiving an input clock which selectively generates an internal clock synchronized to an external clock using the input clock using the clock enable control signal. Whereupon, a locking failure can be prevented by performing a phase update operation selectively in accordance with whether the power supply voltage is varied or not in the power-down mode. Furthermore, current consumption can be reduced by controlling phase update time in accordance with a variable magnitude of the power supply voltage.

Abstract translation: 提出了一种产生与外部时钟同步的内部时钟的时钟同步电路和时钟同步方法。 电路和方法包括时钟使能控制电路，其产生由电源电压和掉电信号控制的时钟使能控制信号。 电路和方法还包括时钟发生电路，其接收输入时钟，该输入时钟使用时钟使能控制信号使用输入时钟选择性地产生与外部时钟同步的内部时钟。 于是，通过根据在掉电模式下电源电压是否变化来选择性地执行相位更新操作，可以防止锁定故障。 此外，通过根据电源电压的可变幅度控制相位更新时间，可以减少电流消耗。

公开(公告)号：US20090088594A1

公开(公告)日：2009-04-02

申请号：US12297352

申请日：2007-03-16

Applicant: Seung Hoon Oh ,  Seong Jun Lee ,  Tae Jin Kim ,  Ahn Seop Choi ,  Young Min Chung ,  In Kyu Song ,  Ji Chul Jung ,  Hee Soo Kim

Inventor： Seung Hoon Oh ,  Seong Jun Lee ,  Tae Jin Kim ,  Ahn Seop Choi ,  Young Min Chung ,  In Kyu Song ,  Ji Chul Jung ,  Hee Soo Kim

IPC: C07C5/333 ,  B01J23/31

CPC classification number: B01J35/0006 ,  B01J23/31 ,  B01J35/002 ,  B01J37/03 ,  C07C5/3335 ,  C07C2523/644 ,  C07C11/167

Abstract: This invention relates to a bismuth molybdate catalyst, a preparation method thereof, and a method of preparing 1,3-butadiene using the same, and to a bismuth molybdate catalyst, a preparation method thereof, and a method of preparing 1,3-butadiene using the same, in which 1,3-butadiene can be prepared through oxidative dehydrogenation directly using a C4 mixture including n-butene and n-butane as a reactant in the presence of a mixed-phase bismuth molybdate catalyst including α-bismuth molybdate (Bi2Mo3On) and γ-bismuth molybdate (Bi2MoO6). According to this invention, the C4 raffinate, containing many impurities, is used as a reactant, without an additional n-butane separation process, thus obtaining 1,3-butadiene at high yield. Unlike complicated multicomponent-based metal oxides, the catalyst of the invention has simple constituents and synthesis routes, and can be easily formed through physical mixing, and thus is very advantageous in assuring reproducibility and can be directly applied to commercial processes.

Abstract translation: 本发明涉及钼酸铋催化剂及其制备方法，以及使用其制备1,3-丁二烯的方法，以及钼酸铋催化剂及其制备方法以及制备1,3-丁二烯的方法 使用相同的方法，其中可以通过氧化脱氢制备1,3-丁二烯，其中包括在包括α-钼酸铋的混合钼酸铋催化剂存在下，使用包含正丁烯和正丁烷的C4混合物作为反应物 Bi2Mo3On）和γ-钼酸铋（Bi2MoO6）。 根据本发明，不含额外的正丁烷分离方法，将含有许多杂质的C4萃余液用作反应物，从而以高产率获得1,3-丁二烯。 不同于复合多组分金属氧化物，本发明的催化剂具有简单的组成和合成路线，并且可以通过物理混合容易地形成，因此在确保再现性方面是非常有利的，并且可以直接应用于商业过程。

公开(公告)号：US20070133725A1

公开(公告)日：2007-06-14

申请号：US11636243

申请日：2006-12-08

Applicant: Tae-Hoon Kim ,  Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seong-Jun Lee

Inventor： Tae-Hoon Kim ,  Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seong-Jun Lee

IPC: H04N7/20 ,  H04L7/00

CPC classification number: H04B7/18523 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2676

Abstract: Provided are an apparatus and method for correcting a frequency offset in a satellite digital video broadcasting system. The apparatus includes: a frequency response transformer for receiving a satellite digital video broadcasting signal and acquiring a plurality of frequency responses divided into a positive frequency part and a negative frequency part; a rotation/difference value calculation unit for selecting one of the plurality of frequency responses inputted from the frequency response transformer and calculating a first area difference value indicating a difference in area between the positive frequency part and the negative frequency part without rotation for the selected frequency response, and calculating a second area difference value indicating a difference in area between the positive frequency component and the negative frequency component with rotation for the remaining frequency responses; a zero intersection point calculator for dividing an average slope of a straight line formed by the first area difference value and the second area difference value by the first area difference value, and calculating a zero intersection point of an area difference value on the straight line; and a frequency offset estimator for correcting the zero intersection point provided from the zero intersection point calculator to thereby estimate the frequency offset.

Abstract translation: 提供了一种用于校正卫星数字视频广播系统中的频率偏移的装置和方法。 该装置包括：频率响应变压器，用于接收卫星数字视频广播信号并获取分成正频率部分和负频率部分的多个频率响应; 旋转/差值计算单元，用于选择从频率响应变换器输入的多个频率响应中的一个频率响应，并且计算指示正频率部分和负频率部分之间的面积差的第一区域差值，而不是所选频率的旋转 响应，并且计算指示所述正频率分量和所述负频率分量之间的区域的差异的第二面积差值，其中所述正频率分量和所述负频率分量之间的剩余频率响应的旋转; 零交叉点计算器，用于将由第一区域差值和第二区域差值形成的直线的平均斜率除以第一区域差值，并且计算直线上的区域差值的零交叉点; 以及频率偏移估计器，用于校正从零交叉点计算器提供的零交叉点，从而估计频率偏移。

公开(公告)号：US08860914B2

公开(公告)日：2014-10-14

申请号：US13043034

申请日：2011-03-08

Applicant: Jae-Young Lee ,  Ju-Yeon Seo ,  Seong-Jun Lee ,  Yi Li ,  Seong-Ryong Lee ,  Yong-Kyu Jang

Inventor： Jae-Young Lee ,  Ju-Yeon Seo ,  Seong-Jun Lee ,  Yi Li ,  Seong-Ryong Lee ,  Yong-Kyu Jang

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/134336 ,  G02F1/133788 ,  G02F2001/133726 ,  G02F2001/133776

Abstract: A display device having an improved viewing angle by using a linear polarization structure, and a method of manufacturing the same. The display device includes a first substrate arrangement including a domain forming layer and a pixel electrode arranged on the domain forming layer, the pixel electrode having a cross type opening pattern, a second substrate arrangement including a common electrode arranged on an entire surface that faces the first substrate arrangement and a liquid crystal layer arranged between the first substrate arrangement and the second substrate arrangement, the liquid crystal layer including a plurality of liquid crystal molecules and a reactive mesogen to fix liquid crystal molecules and to produce a liquid crystal domain based on the cross type opening pattern.

Abstract translation: 通过使用线偏振结构具有改善的视角的显示装置及其制造方法。 显示装置包括：第一基板装置，其包括域形成层和布置在畴形成层上的像素电极，像素电极具有交叉型开口图案;第二基板布置，包括布置在面向 第一衬底布置和布置在第一衬底布置和第二衬底布置之间的液晶层，液晶层包括多个液晶分子和反应性液晶原子，用于固定液晶分子并基于该液晶分子产生液晶畴 十字型开口图案。