公开(公告)号：US08277132B2

公开(公告)日：2012-10-02

申请号：US12607730

申请日：2009-10-28

申请人： Jong-jin Lee ,  Hyun-seo Kang ,  Jai-sang Koh

发明人： Jong-jin Lee ,  Hyun-seo Kang ,  Jai-sang Koh

IPC分类号： G02B6/36

CPC分类号： G02B6/4246 ,  G02B6/4206 ,  G02B6/4271

摘要： A bidirectional optical transceiver module with a temperature control function is provided. The bidirectional optical transceiver module includes a package configured to have a flat bottom surface and include two windows used for optical transmission and reception; a ferrule configured to be coupled to one side of the package and allow an optical fiber to be inserted therein; an optical receiver module configured to be coupled to another side of the package in a direction perpendicular to that of the ferrule coupled to the package; a sub-optical transmitter module configured to be built in the package and include a light-emitting element and a collimating lens used to collimate light from the light-emitting element; an optical filter configured to be built in the package, transmit light from the light-emitting element to the optical fiber and reflect light received through the optical fiber to the optical receiver module; and a temperature regulator configured to be built in the package and control the sub-optical transmitter module to a preset temperature. Accordingly, it is possible to reduce the manufacturing cost of the package, effectively discharge heat, and be more endurable to external impact or vibration.

摘要翻译： 提供了具有温度控制功能的双向光收发模块。 双向光收发器模块包括被配置为具有平坦的底表面并且包括用于光学传输和接收的两个窗口的封装; 套圈，被配置为耦合到所述封装的一侧并允许光纤插入其中; 光接收器模块，被配置为在垂直于耦合到封装的套圈的方向上耦合到封装的另一侧; 子光发射机模块，被配置为内置在所述封装中并且包括发光元件和用于准直来自所述发光元件的光的准直透镜; 配置成内置在封装中的滤光器，将来自发光元件的光透射到光纤，并将通过光纤接收的光反射到光接收器模块; 以及温度调节器，其被配置为内置在所述封装中并将所述子光发射器模块控制到预设温度。 因此，可以降低包装的制造成本，有效地排出热量，并且能够更耐外部冲击或振动。

公开(公告)号：US08208465B2

公开(公告)日：2012-06-26

申请号：US12652818

申请日：2010-01-06

申请人： Seokkap Ko ,  Ilkyun Park ,  Nac Woo Kim ,  Byung-Tak Lee ,  Jai Sang Koh

发明人： Seokkap Ko ,  Ilkyun Park ,  Nac Woo Kim ,  Byung-Tak Lee ,  Jai Sang Koh

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L1/00 ,  H04L12/26 ,  H04J3/26

CPC分类号： H04L45/00 ,  H04L12/185 ,  H04L45/16 ,  H04L45/48

摘要： Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message.

摘要翻译： 公开了一种多跳网络中的组播控制装置和方法。 多跳网络中的组播控制装置包括分组确定单元，用于从组管理查询设备或站接收分组，并且确定所接收的分组是否是组管理协议分组，分组类型区分单元，用于区分 当接收到的分组被确定为组管理协议分组时，接收分组的类型;以及分组发送单元，用于当接收到的分组被确定为查询时，将分组发送到除了接收到查询消息的第一端口之外的第二端口 信息。

公开(公告)号：US20110106915A1

公开(公告)日：2011-05-05

申请号：US12794036

申请日：2010-06-04

申请人： Sangkyune KIM ,  Jai Sang KOH ,  Byung-Tak LEE ,  Ilkyun PARK ,  Byongkwon MOON ,  Kyunghun KIM

发明人： Sangkyune KIM ,  Jai Sang KOH ,  Byung-Tak LEE ,  Ilkyun PARK ,  Byongkwon MOON ,  Kyunghun KIM

IPC分类号： G06F15/16 ,  G06N5/02

CPC分类号： G06F15/16 ,  G06Q30/02 ,  H04L29/06 ,  H04L65/4084 ,  H04L65/80 ,  H04N7/173 ,  H04N21/251 ,  H04N21/2625 ,  H04N21/4384 ,  H04N21/4622 ,  H04N21/6405

摘要： Provided are a channel server, a channel prediction server, a terminal, and a method for a fast channel switching. The channel server may generate at least one delay multicast stream from an original multicast stream by applying a different delay value based on channel preference information, and may determine an optimal multicast stream from the at least one delay multicast stream, and transmit, to a terminal, response information associated with the optimal multicast stream in response to query information associated with the original multicast stream received from the terminal.

摘要翻译： 提供了一种信道服务器，信道预测服务器，终端和用于快速信道切换的方法。 信道服务器可以通过基于信道偏好信息应用不同的延迟值从原始多播流生成至少一个延迟多播流，并且可以从至少一个延迟多播流确定最佳多播流，并将其发送到终端 响应于与从终端接收到的原始组播流相关联的查询信息，与最佳组播流相关联的响应信息。

公开(公告)号：US20100158513A1

公开(公告)日：2010-06-24

申请号：US12581796

申请日：2009-10-19

申请人： Eui-suk Jung ,  Jea-hoon Yu ,  Byoung-whi Kim ,  Jai-sang Koh

发明人： Eui-suk Jung ,  Jea-hoon Yu ,  Byoung-whi Kim ,  Jai-sang Koh

IPC分类号： H04B10/08 ,  H04J14/02

CPC分类号： H04B10/07953 ,  H04J14/0221

摘要： Provided are an apparatus and method for measuring signal performance and an apparatus for selecting a signal. The apparatus includes a wavelength selector selecting a signal having a specific wavelength from an input signal, a time selector selecting a signal input at a specific time from the selected signal having the specific wavelength, and a performance measurer measuring signal performance for the signal of the specific wavelength that is input at the specific time and selected by the time selector. Thus, it is possible to measure signal quality of each wavelength-division multiplexing (WDM)-time-division multiplexing (TDM) channel in a WDM-TDM hybrid environment.

摘要翻译： 提供了一种用于测量信号性能的装置和方法以及用于选择信号的装置。 该装置包括：波长选择器，从输入信号中选择具有特定波长的信号;时间选择器，从具有特定波长的选定信号选择特定时间输入的信号;以及性能测量器，测量信号的信号性能 在特定时间输入并由时间选择器选择的特定波长。 因此，可以在WDM-TDM混合环境中测量每个波分复用（WDM）时分复用（TDM）信道的信号质量。

公开(公告)号：US20100150560A1

公开(公告)日：2010-06-17

申请号：US12625286

申请日：2009-11-24

申请人： Jie-hyun Lee ,  Seung-hyun Cho ,  Han-hyub Lee ,  Byoung-whi Kim ,  Jea-hoon Yu ,  Sang-soo Lee ,  Jai-sang Koh

发明人： Jie-hyun Lee ,  Seung-hyun Cho ,  Han-hyub Lee ,  Byoung-whi Kim ,  Jea-hoon Yu ,  Sang-soo Lee ,  Jai-sang Koh

IPC分类号： H04J14/02

CPC分类号： H04B10/2537 ,  H04J2014/0253

摘要： Disclosed are an optical transmission apparatus and method in a wavelength division multiplexing passive optical network (WDM-PON). The optical transmission apparatus outputs an optical signal by applying a DC bias current and an RF signal to a laser diode at a threshold current level of the laser diode, thereby broadening an optical spectrum of the laser diode. Accordingly, an optical link becomes less vulnerable to reflection induced noise, which contributes to improve stability and reliability of the optical link.

摘要翻译： 公开了波分复用无源光网络（WDM-PON）中的光传输装置和方法。 光传输装置通过在激光二极管的阈值电流电平下向激光二极管施加DC偏置电流和RF信号来输出光信号，从而使激光二极管的光谱变宽。 因此，光链路变得不易受到反射感应噪声的影响，这有助于提高光链路的稳定性和可靠性。

公开(公告)号：US20100138302A1

公开(公告)日：2010-06-03

申请号：US12572152

申请日：2009-10-01

申请人： Il-kyun Park ,  Kyung-hun Kim ,  Jai-sang Koh ,  Byung-tak Lee ,  Seung-hun Oh ,  Nac-woo Kim ,  Hong-yeon Yu

发明人： Il-kyun Park ,  Kyung-hun Kim ,  Jai-sang Koh ,  Byung-tak Lee ,  Seung-hun Oh ,  Nac-woo Kim ,  Hong-yeon Yu

IPC分类号： G06Q30/00

CPC分类号： G06Q30/02 ,  G06Q30/0261 ,  G06Q30/0269

摘要： A user equipment and an advertisement service server for a bidirectional personalized advertisement, and a bidirectional personalized advertisement method are provided. The UE receives user setting information and advertisement meta-information from the advertisement service server, stores the received user setting information and advertisement meta-information, searches for advertisement contents corresponding to the user setting information from the stored advertisement meta-information and selects the found advertisement contents when an advertisement event occurs, and displays the selected advertisement contents. Accordingly, the dependence of an online advertisement service on a particular media service can be prevented.

摘要翻译： 提供了用于双向个性化广告的用户设备和广告服务服务器，以及双向个性化广告方法。 UE从广告业务服务器接收用户设定信息和广告元信息，存储接收到的用户设置信息和广告元信息，从存储的广告元信息中搜索与用户设置信息对应的广告内容，并选择发现 当广告事件发生时的广告内容，并且显示所选择的广告内容。 因此，可以防止在线广告服务对特定媒体服务的依赖。

公开(公告)号：US07054856B2

公开(公告)日：2006-05-30

申请号：US09995718

申请日：2001-11-29

申请人： Jeong Wook Won ,  Hyoung Bok Lee ,  Jai Sang Koh

发明人： Jeong Wook Won ,  Hyoung Bok Lee ,  Jai Sang Koh

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G06F17/30616 ,  G06F2216/11 ,  Y10S707/99933 ,  Y10S707/99945

摘要： A system and a method for drawing a patent map using a technical field word are disclosed. In the system and the method, a word to be used for drawing a patent map is extracted by calculating weight values of significant words which are gotten by removing unnecessary words from patent data, and this extracted word is matched with a patent to draw the patent map.

公开(公告)号：US08817820B2

公开(公告)日：2014-08-26

申请号：US13131847

申请日：2009-07-17

申请人： Seung-hun Oh ,  Il-kyun Park ,  Byung-tak Lee ,  Kyung-hun Kim ,  Jai-sang Koh

发明人： Seung-hun Oh ,  Il-kyun Park ,  Byung-tak Lee ,  Kyung-hun Kim ,  Jai-sang Koh

IPC分类号： H04J3/00

CPC分类号： H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04L69/166

摘要： A fragmentation repetition detection apparatus (410) for detecting an IP fragmentation repetition which may occur in a multicast or unicast environment is provided. The fragmentation repetition detection apparatus (410) includes a packet capturing unit (411) which captures a received packet, a fragmentation repetition detector which detects whether or not the captured packet is a packet which is repetitively fragmented, and a path maximum transmission unit (PMTU) transmitter (414) which transmits PMTU information acquired by the fragmentation repetition detector (412) to a server which transmits the packet when the captured packet is a packet which is repetitively fragmented. Since a packet is transmitted by readjusting a PMTU, a fragmentation of an IP packet can be prevented.

摘要翻译： 提供了用于检测在多播或单播环境中可能发生的IP分段重复的分片重复检测装置（410）。 分段重复检测装置（410）包括捕获接收到的分组的分组捕获单元（411），检测捕获的分组是否是重复分段的分组的分片重复检测器和路径最大传输单元（PMTU ）发送器（414），其将由分段重复检测器（412）获取的PMTU信息发送到当所捕获的分组是重复分段的分组时发送分组的服务器。 由于通过重新调整PMTU来发送分组，因此可以防止IP分组的分片。

公开(公告)号：US20120165040A1

公开(公告)日：2012-06-28

申请号：US13296718

申请日：2011-11-15

申请人： Byung Tak Lee ,  Seok Kap Ko ,  Seung Hun Oh ,  Jai Sang Koh

发明人： Byung Tak Lee ,  Seok Kap Ko ,  Seung Hun Oh ,  Jai Sang Koh

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/0289 ,  G01S5/10

摘要： Disclosed is a method for locating wireless nodes using difference triangulation, including: storing information transmitted from three or more fixed wireless nodes while moving on a movement path; calculating displacement vectors among three or more measurement points sharing the information of three or more fixed wireless nodes on the movement path; calculating positional information of the mobile wireless node at another measurement point by reflecting the calculated displacement vectors to the positional information of the mobile wireless node calculated at a measurement point of a region where a location of at least one fixed wireless node is known; and calculating positional information of a location-unknown fixed wireless node by the positional information of the mobile wireless node calculated at the three or more measurement points and information received from the location-unknown fixed wireless node.

摘要翻译： 公开了一种使用差分三角测量定位无线节点的方法，包括：在移动路径上移动时，存储从三个或更多固定无线节点发送的信息; 计算共享三个或更多个固定无线节点在移动路径上的信息的三个或更多个测量点之间的位移向量; 通过将所计算的位移矢量反映到在已知至少一个固定无线节点的位置的区域的测量点处计算出的移动无线节点的位置信息来计算另一测量点处的移动无线节点的位置信息; 以及通过在三个或更多个测量点处计算的移动无线节点的位置信息和从位置未知固定无线节点接收的信息来计算位置未知固定无线节点的位置信息。

公开(公告)号：US20120127994A1

公开(公告)日：2012-05-24

申请号：US13296475

申请日：2011-11-15

申请人： Seok-Kap KO ,  Seung-Hun OH ,  Byung-Tak LEE ,  Jai-Sang KOH

发明人： Seok-Kap KO ,  Seung-Hun OH ,  Byung-Tak LEE ,  Jai-Sang KOH

IPC分类号： H04L12/56

CPC分类号： H04L45/16 ,  H04L12/18 ,  H04L12/1868 ,  H04L45/12

摘要： A multicast communication method, a multicast communication apparatus and a multicast communication system in a network environment lacking a continuous connectivity. The source node device selects a group leader device which is able to forward data to group member devices belonging to a multicast group, and forwards the data to the selected group leader device, thereby reducing traffic between node devices, improving network reliability and saving the communication cost.

摘要翻译： 一种组播通信方法，组播通信装置和组播通信系统，在网络环境中不具有连续性。 源节点设备选择能够将数据转发到属于多播组的组成员设备的组头设备，并将数据转发到所选群组设备，从而减少节点设备之间的流量，提高网络可靠性并节省通信 成本。