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1. 发明授权

US06307993B1 Optical fiber for wavelength division miltiplexing communications 有权
标题翻译：用于波分复用通信的光纤
公开(公告)号：US06307993B1
公开(公告)日：2001-10-23
申请号：US09152503
申请日：1998-09-14
申请人： Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Xiao-Jun Li , Ki-Un Namkoong , Seung-Hun Oh
发明人： Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Xiao-Jun Li , Ki-Un Namkoong , Seung-Hun Oh
IPC分类号： G02B622
CPC分类号： G02B6/03633 , G02B6/02271 , G02B6/0281 , G02B6/0286
摘要： An optical fiber for wavelength division multiplexing (WDM) communications, includes: an inner core having a predetermined refractive index, formed to a first predetermined radius from a central axis of the optical fiber, an outer core having a refractive index which is lower than the refractive index of the inner core and gets linearly smaller from its inner side to its outer side, formed on an outer side of the inner core to have a second predetermined radius, and a cladding formed on an outer side of the outer core to have a third predetermined radius.
摘要翻译：一种用于波分复用（WDM）通信的光纤，包括：具有从光纤的中心轴线形成到第一预定半径的具有预定折射率的内芯，外芯的折射率低于内芯的折射率从其内侧到外侧线性地变小，形成在内芯的外侧，具有第二预定半径;以及包层，形成在外芯的外侧，以具有第三预定半径。

2. 发明授权

US6053013A Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method 失效
标题翻译：用于包覆光纤预制棒的设备和方法以及光纤拉丝方法
公开(公告)号：US6053013A
公开(公告)日：2000-04-25
申请号：US049030
申请日：1998-03-27
申请人： Seung-Hun Oh , Ki-Un Namkoong , Man-Seok Seo , Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Mun-Hyun Do , Young-Joo Chung
发明人： Seung-Hun Oh , Ki-Un Namkoong , Man-Seok Seo , Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Mun-Hyun Do , Young-Joo Chung
IPC分类号： C03B23/043 , C03B23/045 , C03B37/012 , C03B37/018 , C03B37/027 , C03B37/029 , C03B37/028 , C03B37/10 , C03B37/07 , C03C25/02
CPC分类号： C03B37/01248 , C03B23/043 , C03B23/045 , C03B37/01211 , C03B37/01257 , C03B37/01807 , C03B37/027 , C03B37/029 , C03B2205/08 , Y02P40/57
摘要： There are provided an optical fiber rod overcladding apparatus and method, and an optical fiber drawing method. In the preform rod overcladding method, a preform rod is clamped in a top chuck and leveled, and a glass tube is mounted in a bottom chuck and leveled. The preform rod is coaxially inserted into a glass tube. Then, the glass tube is preheated by the furnace and heated by the burner until the glass tube reaches a softening point. The preform rod is completely sealed in the glass tube by sucking air in a clearance between the preform rod and the glass tube by application of a negative vacuum pressure. Thus, a preform is completed.
摘要翻译：提供了一种光纤棒外包装置和方法，以及一种光纤拉丝方法。在预成型棒包覆方法中，将预成型棒夹在顶卡盘中并平整，并将玻璃管安装在底卡盘中并平整。预制棒同轴地插入玻璃管中。然后，玻璃管由炉预热并通过燃烧器加热直到玻璃管达到软化点。通过施加负真空压力，将预制棒通过在预成型棒和玻璃管之间的间隙中吸入空气而完全密封在玻璃管中。因此，完成预成型件。

3. 发明授权

US06519974B1 Method for fabricating an optical fiber by simultaneous preform fusing and fiber drawing 失效
标题翻译：通过同时预制件熔合和纤维拉伸制造光纤的方法
公开(公告)号：US06519974B1
公开(公告)日：2003-02-18
申请号：US08872876
申请日：1997-06-10
申请人： Seung-Hun Oh , Ki-Un Namkoong , Jin-Han Kim
发明人： Seung-Hun Oh , Ki-Un Namkoong , Jin-Han Kim
IPC分类号： C03B37027
CPC分类号： C03B37/02754 , C03B37/0253 , C03B37/02736 , C03B2205/14 , C03B2205/16 , C03B2205/40 , C03B2205/42 , Y02P40/57
摘要： Disclosed is an apparatus for fabricating an optical fiber, which comprises a furnace for melting a sealed preform assembly to draw an uncoated optical fiber, a coater for coating the uncoated optical fiber, a capstan for drawing the optical fiber from the optical fiber preform by applying a drawing force, an adjoiner for holding a primary optical fiber preform inserted centrally into an overcladding tube with an equidistant space between the outer surface of the primary optical fiber preform and the inner surface of the overcladding tube, and a preform positioner for supporting the sealed preform assembly in a specified position with respect to the furnace. The adjoiner has passages that provide an inlet for receiving a flow of gas, a channel in which the flow of gas generates a reduced pressure region, and a suction tube for extending the reduced pressure region to the interior space of the overcladding tube, whereby fusing of the overcladding tube to the primary optical fiber preform is achieved during the drawing operation.
摘要翻译：公开了一种用于制造光纤的设备，其包括用于熔化密封的预制组件以拉制未涂覆的光纤的炉，用于涂覆未涂覆的光纤的涂布机，用于通过施加从光纤预制件拉制光纤的绞盘牵引力，用于将主光纤预制棒中心插入到外包层中的主光纤预制棒的外表面与外包层管的内表面之间具有等间隔的空间的连接器和用于支撑密封的预成型件定位器预成型件组装在相对于炉子的指定位置。连接器具有通道，该通道提供用于接收气体流的入口，气体流动产生减压区域的通道，以及用于将减压区域延伸到外包管内部空间的吸管，由此熔化在拉丝操作期间实现了包层管到主光纤预制棒。

4. 发明申请

US20100218230A1 SYSTEM AND METHOD FOR INTERACTIVE IPTV BROADCASTING SERVICE OF USER PARTICIPATION 有权
标题翻译：用户参与互动IPTV广播服务的系统与方法
公开(公告)号：US20100218230A1
公开(公告)日：2010-08-26
申请号：US12678623
申请日：2008-03-31
申请人： Seung-Hun Oh , Il-Kyun Park , Ho-Young Song , Bong-Tae Kim , Byong-Kwon Moon
发明人： Seung-Hun Oh , Il-Kyun Park , Ho-Young Song , Bong-Tae Kim , Byong-Kwon Moon
IPC分类号： H04N7/173
CPC分类号： H04L65/4084 , H04L65/4038 , H04N21/2343 , H04N21/262 , H04N21/47214 , H04N21/64322
摘要： There is provided a interactive IPTV broadcasting service system of user participation, the system including: a broadcast controller reserving time of IPTV broadcast channels to perform an IPTV broadcast according to the reserved time, notifying user participation to accept the user participation during the broadcasting service, and controlling so that video of the user making a request for participation in broadcasting is included in video of the broadcast in progress, and then broadcast, a plurality of clients each notifying the broadcast controller of the request of the corresponding user when the participation in broadcasting is requested according to a selection of the IPTV broadcasting user and generating video and audio traffic of the corresponding user, and a media server relaying the users' participation in broadcasting between the broadcast controller and the clients, and receiving and mixing video and audio traffic of a broadcaster and the video and audio traffic of each of the users making the requests for the participation in broadcasting. Accordingly, the broadcaster can synthesize videos of users into broadcast contents.
摘要翻译：提供了一种用户参与的交互式IPTV广播服务系统，该系统包括：广播控制器根据预约时间预留IPTV广播频道的时间进行IPTV广播，通知用户参与在广播业务期间接受用户的参与，并且进行控制，使得进行广播的请求的用户的视频被包括在正在进行的广播的视频中，然后广播多个客户端，每个客户端在参与广播时向广播控制器通知相应用户的请求根据IPTV广播用户的选择并产生相应用户的视频和音频业务，以及媒体服务器在广播控制器和客户端之间转播用户参与广播，并且接收和混合视频和音频流量一个广播公司和每个视频和音频流量用户要求参与广播。因此，广播者可以将用户的视频合成为广播内容。

5. 发明申请

US20100229211A1 FAST CHANNEL CHANGE SYSTEM USING MULTIPLE MULTICASTS IN IPTV NETWORK AND METHOD THEREOF 审中-公开
标题翻译：在IPTV网络中使用多个多播的快速频道更改系统及其方法
公开(公告)号：US20100229211A1
公开(公告)日：2010-09-09
申请号：US12677892
申请日：2008-04-24
申请人： Byung-Tak Lee , Sang-Hyeun Lee , Seung-Hun Oh , Jae-Chan Shim , Ho-Young Song , Bong-Tae Kim
发明人： Byung-Tak Lee , Sang-Hyeun Lee , Seung-Hun Oh , Jae-Chan Shim , Ho-Young Song , Bong-Tae Kim
IPC分类号： H04N7/173
CPC分类号： H04N7/17318 , H04N21/2625 , H04N21/26275 , H04N21/26616 , H04N21/4384 , H04N21/6405 , H04N21/64322
摘要： Provided are a fast channel change apparatus based on multiple multicasts communication in an IPTV network, and a method thereof. In the fast channel change system, after separately generating at least one multicast stream obtained by applying different time delays respectively to original multicast stream to be broadcast, a channel server dynamically analyzes information regarding the at least one multicast stream. After querying the channel server for information regarding an optimal multicast stream and receiving the response to the query, a user terminal joins a multicast group on the optimal multicast stream through a router. After a predetermined time is elapsed, the user terminal joins a multicast group of the original multicast stream. Thus, it is possible to easily and inexpensively embody a fast channel change function network based on multiple multicasts communication in an IPTV network.
摘要翻译：提供一种基于IPTV网络中的多播多播通信的快速频道改变装置及其方法。在快速通道切换系统中，在分别产生通过对要广播的原始多播流分别应用不同时间延迟而获得的至少一个多播流之后，频道服务器动态分析关于至少一个多播流的信息。在向通道服务器询问有关最佳组播流的信息并接收对该查询的响应之后，用户终端通过路由器加入最佳组播流上的组播组。在经过预定时间之后，用户终端加入原始多播流的多播组。因此，可以容易且廉价地体现基于IPTV网络中的多个组播通信的快速频道改变功能网络。

6. 发明授权

US5942296A Optical fiber preform 失效
标题翻译：光纤预制棒
公开(公告)号：US5942296A
公开(公告)日：1999-08-24
申请号：US796192
申请日：1997-02-07
申请人： Seung-Hun Oh , Gyun-Hae Doh , Sun-Woong Kang
发明人： Seung-Hun Oh , Gyun-Hae Doh , Sun-Woong Kang
IPC分类号： G02B6/00 , C03B37/012 , C03B37/018 , C03C13/04 , G02B6/036 , A47G19/22 , B32B7/02 , B32B9/00 , G02B6/02
CPC分类号： C03B37/018 , C03B37/01211 , C03B2201/04 , C03B2203/22 , C03B2203/24 , Y02P40/57 , Y10T428/131 , Y10T428/1314 , Y10T428/1317 , Y10T428/24942
摘要： Disclosed is an optical fiber possible to prevent it from increasing an optical loss occurring during fabrication of a single mode fiber preform and extraction thereof and enhance an optical transmission efficiency, a method of producing the same comprising the steps of forming a first quartz tube having a first thermal conductivity, said first quartz tube being used as a clad; depositing a core layer and a clad layer inside said first quartz tube to form a preliminary perform by heating of said fist quartz tube; forming a second quartz tube having a second thermal conductivity lower than said first thermal conductivity; and depositing said second quartz tube to said preliminary preform by heating to produce said optical fiber preform.
摘要翻译：公开了一种光纤，其可以防止其增加在单模光纤预制件的制造期间发生的光学损耗并提取其并提高光传输效率，其制造方法包括以下步骤：形成第一石英管，其具有第一导热率，所述第一石英管用作包层; 在所述第一石英管内沉积芯层和覆层以通过加热所述第一石英管形成预备性能; 形成具有低于所述第一热导率的第二热导率的第二石英管; 以及通过加热将所述第二石英管沉积到所述初级预制件以产生所述光纤预制件。

7. 发明授权

US5761366A Optical fiber with smooth core refractive index profile and method of fabrication 失效
$Optical fiber with smooth core refractive index profile and method of fabrication$
标题翻译：具有光纤芯折射率分布的光纤和制造方法
公开(公告)号：US5761366A
公开(公告)日：1998-06-02
申请号：US745123
申请日：1996-11-07
申请人： Seung-Hun Oh , Young-Sik Yoon
发明人： Seung-Hun Oh , Young-Sik Yoon
IPC分类号： G02B6/00 , C03B37/018 , C03B37/075 , C03C13/04 , G02B6/028 , G02B6/036 , G02B6/02 , C03B37/023
CPC分类号： G02B6/02276 , C03B37/01807 , C03B37/01853 , G02B6/03666 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2203/36 , C03B2207/80 , C03B2207/86
摘要： A method of fabricating a dispersion shifted optical fiber with a smooth annular ring refractive index profile has the steps of heating a quartz tube with an external oxygen or hydrogen burner and supplying the quartz tube with raw materials including SiCl.sub.4, GeCl.sub.4, POCl.sub.3 and CF.sub.4. O.sub.2 is later supplied. Then, the quartz tube is heated in nine passes of decreasing temperature from 1920.degree. C. to 1890.degree. C., so as to deposit a core section. In the nine passes, the quantity of SiCl.sub.4 feed flow decreases from 380 milligrams per minute to 260 milligrams per minute, the quantity of GeCl.sub.4 feed flow increases from 20 milligrams per minute to 195 milligrams per minute, and the quantity of O.sub.2 feed flow is kept constant at 1500 cubic centimeters per minute.
摘要翻译：制造具有光滑环形环折射率分布的色散位移光纤的方法包括用外部氧气或氢气燃烧器加热石英管并向石英管供应包括SiCl 4，GeCl 4，POCl 3和CF 4的原料的步骤。 O2随后供应。然后，将石英管在从1920℃降至1890℃的9次通过中加热，以沉积芯部。在九遍中，SiCl4进料流量从380毫克/分钟降至260毫克/分钟，GeCl4进料流量从20毫克/分钟增加到195毫克/分钟，并且保持O 2进料流量常数为1500立方厘米每分钟。

8. 发明授权

US08336076B2 System and method for positioning multiple broadcast content on a user interface 有权
标题翻译：用于在用户界面上定位多个广播内容的系统和方法
公开(公告)号：US08336076B2
公开(公告)日：2012-12-18
申请号：US12678623
申请日：2008-03-31
申请人： Seung-Hun Oh , Il-Kyun Park , Ho-Young Song , Bong-Tae Kim , Byong-Kwon Moon
发明人： Seung-Hun Oh , Il-Kyun Park , Ho-Young Song , Bong-Tae Kim , Byong-Kwon Moon
IPC分类号： H04N7/173 , H04N7/14 , G06Q10/00 , G06Q99/00 , G06F3/00 , G06F15/16
CPC分类号： H04L65/4084 , H04L65/4038 , H04N21/2343 , H04N21/262 , H04N21/47214 , H04N21/64322
摘要： There is provided a interactive IPTV broadcasting service system of user participation, the system including: a broadcast controller reserving time of IPTV broadcast channels to perform an IPTV broadcast according to the reserved time, notifying user participation to accept the user participation during the broadcasting service, and controlling so that video of the user making a request for participation in broadcasting is included in video of the broadcast in progress, and then broadcast, a plurality of clients each notifying the broadcast controller of the request of the corresponding user when the participation in broadcasting is requested according to a selection of the IPTV broadcasting user and generating video and audio traffic of the corresponding user, and a media server relaying the users' participation in broadcasting between the broadcast controller and the clients, and receiving and mixing video and audio traffic of a broadcaster and the video and audio traffic of each of the users making the requests for the participation in broadcasting. Accordingly, the broadcaster can synthesize videos of users into broadcast contents.
摘要翻译：提供了一种用户参与的交互式IPTV广播服务系统，该系统包括：广播控制器根据预约时间预留IPTV广播频道的时间进行IPTV广播，通知用户参与在广播业务期间接受用户的参与，并且进行控制，使得进行广播的请求的用户的视频被包括在正在进行的广播的视频中，然后广播多个客户端，每个客户端在参与广播时向广播控制器通知相应用户的请求根据IPTV广播用户的选择并产生相应用户的视频和音频业务，以及媒体服务器在广播控制器和客户端之间转播用户参与广播，并且接收和混合视频和音频流量一个广播公司和每个视频和音频流量用户要求参与广播。因此，广播者可以将用户的视频合成为广播内容。

9. 发明申请

US20100195826A1 SYSTEM FOR PERSONAL IP BROADCASTING SERVICE WITH PERSONAL DRM AND METHOD USING THE SAME 审中-公开
标题翻译：具有个人DRM的个人IP广播服务的系统和使用它的方法
公开(公告)号：US20100195826A1
公开(公告)日：2010-08-05
申请号：US12443683
申请日：2007-06-15
申请人： Sung-Yong Lee , Byung-Tak Lee , Seung-Hun Oh , Ho-Young Song , Bong-Tae Kim
发明人： Sung-Yong Lee , Byung-Tak Lee , Seung-Hun Oh , Ho-Young Song , Bong-Tae Kim
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , H04L63/0428 , H04L63/0823 , H04L65/4076 , H04L2463/101 , H04N21/2347 , H04N21/2541 , H04N21/25816 , H04N21/4408 , H04N21/6125 , H04N21/6175 , H04N21/8355
摘要： A system for personal Internet protocol (IP) broadcasting to which a personal digital rights management (DRM) is applied, and a method thereof are provided. The system for personal IP broadcasting includes: a personal broadcasting transmission unit generating content, storing the content, applying personal DRM encryption to the content, and transmitting the content; a personal broadcasting reception unit receiving the transmitted content, DRM-decoding the content based on a personal DRM certificate corresponding to the content, and reproducing the content; a channel management unit allocating a channel through which the personal broadcasting transmission unit transmits broadcasting, then managing the channel, and transmitting information of a predetermined broadcasting transmission unit requested by the personal broadcasting reception unit; and an authentication server unit verifying validity of each of the personal broadcasting transmission unit and the personal broadcasting reception unit, and issuing and managing the personal DRM certificate. According to the system and method, DRM is applied to the content authored and broadcast by an individual person, thereby enabling the person to claim digital rights. Accordingly, illegal copying of the personal broadcasting content can be prevented and only authenticated users can use the service, thereby preventing broadcasting of inappropriate content or illegal use of the service by an unauthorized user.
摘要翻译：提供了一种应用个人数字版权管理（DRM）的个人因特网协议（IP）广播系统及其方法。个人IP广播系统包括：个人广播发送单元，生成内容，存储内容，对内容应用个人DRM加密，以及发送内容; 接收所发送的内容的个人广播接收单元，基于与所述内容相对应的个人DRM证书对所述内容进行DRM解码，并再现所述内容; 频道管理单元，分配个人广播发送单元通过其发送广播的频道，然后管理频道，以及发送由个人广播接收单元请求的预定广播发送单元的信息; 以及验证个人广播发送单元和个人广播接收单元的有效性的认证服务器单元，以及发行和管理个人DRM证书。根据系统和方法，将DRM应用于由个人编写和广播的内容，从而使得该人能够声明数字权利。因此，可以防止个人广播内容的非法复制，并且只有经过认证的用户才能使用该服务，从而防止由未经授权的用户广播不适当的内容或非法使用该服务。

10. 发明授权

US5702497A Method of producing an optical fiber preform from a plurality of tubes having different thermal conductivities 失效
标题翻译：从具有不同热导率的多个管制造光纤预制棒的方法
公开(公告)号：US5702497A
公开(公告)日：1997-12-30
申请号：US541555
申请日：1995-10-10
申请人： Seung-Hun Oh , Gyun-Hae Doh , Sun-Woong Kang
发明人： Seung-Hun Oh , Gyun-Hae Doh , Sun-Woong Kang
IPC分类号： G02B6/00 , C03B37/012 , C03B37/018 , C03C13/04 , G02B6/036 , C03B37/027
CPC分类号： C03B37/018 , C03B37/01211 , C03B2201/04 , C03B2203/22 , C03B2203/24 , Y02P40/57 , Y10T428/131 , Y10T428/1314 , Y10T428/1317 , Y10T428/24942
摘要： Disclosed is an optical fiber capable of preventing an increase in an optical loss from occurring during fabrication and extraction of a single mode fiber preform and enhancement of an optical transmission efficiency, a method of producing the same comprising the steps of forming a first quartz robe having a first thermal conductivity, said first quartz tube being used as a clad; depositing a core layer and a clad layer inside the first quartz robe to form a preliminary perform by heating of the fist quartz robe; forming a second quartz tube having a second thermal conductivity lower than the first thermal conductivity; and depositing the second quartz tube to said preliminary preform by heating to produce the optical fiber preform. On embodiment, uses N overclad layers having thermal conductivites K.sub.x such that K.sub.0 >K.sub.1 >K.sub.2 . . . >K.sub.N and coefficients of viscosity .mu..sub.0
摘要翻译：公开了一种光纤，其能够防止在单模光纤预制件的制造和提取期间发生光损耗的增加，并提高光传输效率，其制造方法包括以下步骤：形成第一石英袍，其具有第一导热系数，所述第一石英管用作包层; 在第一石英袍内部沉积核心层和覆层以通过加热第一石英袍形成预备性能; 形成具有低于第一导热率的第二热导率的第二石英管; 以及通过加热将所述第二石英管沉积到所述初步预制件以产生所述光纤预制件。在实施例中，使用具有导热系数Kx的N个外包层使得K0> K1> K2。。。 > KN，粘度系数μ0 <1。。。小于N.

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