公开(公告)号：US08223887B2

公开(公告)日：2012-07-17

申请号：US11775348

申请日：2007-07-10

申请人： Duck Dong Hwang ,  Chang Wook Ahn ,  Chang-Ho Choi ,  Gi Hong Lim ,  Jong-Bu Lim

发明人： Duck Dong Hwang ,  Chang Wook Ahn ,  Chang-Ho Choi ,  Gi Hong Lim ,  Jong-Bu Lim

IPC分类号： H04L27/00 ,  H04B1/00 ,  H04B7/216

CPC分类号： H04L25/03159 ,  H04B7/0669 ,  H04L1/0625 ,  H04L25/03146 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A transmitter, a receiver, and a method of supporting a space time block code (STBC) scheme in a single carrier (SC) system based on a unique word (UW) are provided. The transmitter supporting an STBC scheme in an SC system based on a UW includes: a space time (ST) encoder encoding a plurality of symbols, which has been received according to a predetermined pattern, using a space time encoding; a first UW adder generating a first transmission sequence by inserting a first UW after a first symbol, from the encoded plurality of symbols; and a second UW adder generating a second transmission sequence by inserting a second UW after a second symbol, from the encoded plurality of symbols.

摘要翻译： 提供了基于唯一字（UW）的单载波（SC）系统中的发射机，接收机和支持空时分组码（STBC）方案的方法。 在基于UW的SC系统中支持STBC方案的发射机包括：空间时间（ST）编码器，其使用空间时间编码对已经根据预定模式接收的多个符号进行编码; 第一UW加法器，通过从编码的多个符号插入第一符号之后的第一UW而产生第一传输序列; 以及第二UW加法器，通过从编码的多个符号插入第二符号之后的第二UW，产生第二传输序列。

公开(公告)号：US07354240B2

公开(公告)日：2008-04-08

申请号：US11304759

申请日：2005-12-16

申请人： Chang-Ho Choi ,  Jinhan Kim

发明人： Chang-Ho Choi ,  Jinhan Kim

IPC分类号： F01D3/00

CPC分类号： F01D3/04 ,  F01D11/08 ,  F01D25/168 ,  F02C7/28 ,  F04D29/162 ,  F04D29/167 ,  F04D29/2266 ,  F05D2220/40

摘要： There is provided a centrifugal turbo machine comprising: a volute casing; a rotation axis coupled with the volute casing through a bearing; an impeller which is coupled to an end of the rotation axis and sucks fluid with a centrifugal force due to its rotation; and an axial thrust control member which is coupled to the volute casing at the rear of the impeller in a direction in which the fluid flows and prevents rotation of the fluid by the impeller. It is easy to fabricate and install the centrifugal turbo machine and it is possible to reduce the difference in static pressure of fluid by using the economical axial thrust control member so as to prevent the generation of the axial thrust, which results in damage of the bearing, etc. Therefore, it is possible to stably operate the centrifugal turbo machine.

摘要翻译： 提供了一种离心涡轮机，包括：蜗壳; 旋转轴通过轴承与蜗壳连接; 叶轮，其联接到旋转轴线的端部并且由于其旋转而以离心力吸入流体; 以及轴向推力控制构件，其在叶轮的后部沿着流体流动的方向联接到蜗壳，并防止叶轮旋转流体。 通过使用经济的轴向推力控制部件，可以容易地制造和安装离心式涡轮机，并且可以减少流体的静压差，从而防止产生轴向推力，导致轴承损坏 等等。因此，可以稳定地操作离心式涡轮机。

公开(公告)号：US08582575B2

公开(公告)日：2013-11-12

申请号：US12873620

申请日：2010-09-01

申请人： Chang-Ho Choi

发明人： Chang-Ho Choi

IPC分类号： H04L12/56

CPC分类号： H04L45/742 ,  H04L49/3009

摘要： Provided is a backbone edge switching apparatus and a packet processing method of the backbone edge switching apparatus. The backbone edge switching apparatus may generate and manage an integrated service flow by performing a lookup according to multiple layers with respect to an input packet. Accordingly, it is possible to provide various and effective transmission services.

摘要翻译： 提供了骨干边缘交换装置的骨干边缘交换装置和分组处理方法。 骨干边缘交换装置可以通过根据输入分组的多层执行查找来生成和管理综合服务流。 因此，可以提供各种有效的传输服务。

公开(公告)号：US06331598B1

公开(公告)日：2001-12-18

申请号：US09379905

申请日：1999-08-24

申请人： Jong-Myung Park ,  Chang-Ho Choi ,  Jung-Kwon Oh ,  Seung-Min Hong

发明人： Jong-Myung Park ,  Chang-Ho Choi ,  Jung-Kwon Oh ,  Seung-Min Hong

IPC分类号： C08F222

CPC分类号： C09D151/003 ,  C08F2/22 ,  C08F2/24 ,  C08F257/02 ,  C08F265/04

摘要： A process for preparing an emulsion polymer comprising placing a first mixture of monomers in a feed tank B which is connected directly to a reactor, placing a second mixture of monomers in a feed tank A which is connected to the feed tank B, and continuously varying the composition ratio of the monomers of feed tanks A and B in the emulsion polymer. The composition ratio is varied by varying the rate of feeding of the second mixture of monomers present in tank A into tank B while simultaneously varying the rate of feeding of the first mixture of monomers present in tank B into the reactor. The polymerization occurs as the first and second mixtures of monomers are simultaneously fluxed in the reactor while stirring.

摘要翻译： 一种制备乳液聚合物的方法，包括将单体的第一混合物放置在直接连接到反应器的进料罐B中，将第二个单体混合物放入连接到进料罐B的进料罐A中，并连续变化 进料罐A和B的单体在乳液聚合物中的组成比。 通过改变存储在罐A中的第二混合物到罐B中的进料速率来改变组成比，同时改变存储在罐B中的单体的第一混合物进料到反应器中的速率。 聚合反应发生在第一和第二单体混合物同时在反应器中同时搅拌的同时搅拌。

公开(公告)号：US20070140834A1

公开(公告)日：2007-06-21

申请号：US11304759

申请日：2005-12-16

申请人： Chang-Ho Choi ,  Jinhan Kim

发明人： Chang-Ho Choi ,  Jinhan Kim

IPC分类号： F01D3/04

CPC分类号： F01D3/04 ,  F01D11/08 ,  F01D25/168 ,  F02C7/28 ,  F04D29/162 ,  F04D29/167 ,  F04D29/2266 ,  F05D2220/40

摘要： There is provided a centrifugal turbo machine comprising: a volute casing; a rotation axis coupled with the volute casing through a bearing; an impeller which is coupled to an end of the rotation axis and sucks fluid with a centrifugal force due to its rotation; and an axial thrust control member which is coupled to the volute casing at the rear of the impeller in a direction in which the fluid flows and prevents rotation of the fluid by the impeller. It is easy to fabricate and install the centrifugal turbo machine and it is possible to reduce the difference in static pressure of fluid by using the economical axial thrust control member so as to prevent the generation of the axial thrust, which results in damage of the bearing, etc. Therefore, it is possible to stably operate the centrifugal turbo machine.

摘要翻译： 提供了一种离心涡轮机，包括：蜗壳; 旋转轴通过轴承与蜗壳连接; 叶轮，其联接到旋转轴线的端部并且由于其旋转而以离心力吸入流体; 以及轴向推力控制构件，其在叶轮的后部沿着流体流动的方向联接到蜗壳，并防止叶轮旋转流体。 通过使用经济的轴向推力控制部件，可以容易地制造和安装离心式涡轮机，并且可以减少流体的静压差，从而防止产生轴向推力，导致轴承损坏 等等。因此，可以稳定地操作离心式涡轮机。