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71. 发明申请

US20050089336A1 Metro wavelength division multiplexing network 审中-公开
标题翻译：城域波分复用网络
公开(公告)号：US20050089336A1
公开(公告)日：2005-04-28
申请号：US10847059
申请日：2004-05-17
申请人： Seong-Taek Hwang , Gyu-Woong Lee , Dong-Han Lee , Yun-Je Oh
发明人： Seong-Taek Hwang , Gyu-Woong Lee , Dong-Han Lee , Yun-Je Oh
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/23 , H01S3/30 , H04B10/25 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/02
CPC分类号： H04B10/2916 , H04B10/2914 , H04J14/0221
摘要： A metro wavelength division multiplexing network is disclosed and includes a plurality of optical repeaters, connected through an optical-fiber link, each of the optical repeaters having a Raman-gain medium for Raman-amplifying an inputted optical signal, and a semiconductor optical amplifier for amplifying the Raman-amplified optical signal, wherein each of the optical repeaters accepts a pump light having a designated wavelength for pumping the corresponding Raman-gain medium.
摘要翻译：公开了一种城域波分复用网络，包括通过光纤链路连接的多个光中继器，每个光中继器具有用于拉曼放大输入的光信号的拉曼增益介质，以及用于放大拉曼放大的光信号，其中每个光中继器接收具有指定波长的泵浦光以泵送对应的拉曼增益介质。

72. 发明申请

US20050078965A1 RZ-AMI optical transmitter module 审中-公开
标题翻译： RZ-AMI光发射模块
公开(公告)号：US20050078965A1
公开(公告)日：2005-04-14
申请号：US10843232
申请日：2004-05-10
申请人： Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： G02F1/035 , H04B10/516 , H04B10/524 , H04B10/54 , H04B10/61 , H04B10/04
CPC分类号： H04B10/505 , H04B10/5055
摘要： Disclosed is an optical transmitter module comprising: a precoder to generate an encoded binary signal from an electric signal; an amplifier to amplify the binary signal; a converter to convert the amplified encoded binary signal into a limited ternary signal; a frequency generator to generate a sine wave having a predetermined frequency; a multiplier to multiply the ternary signal using the sine wave; a light source to generate a coherent CW light having a constant intensity; and a Mach-Zehnder modulator to modulate the CW light according to the ternary signal from the multiplier.
摘要翻译：公开了一种光发射机模块，包括：预编码器，用于从电信号产生编码的二进制信号; 用于放大二进制信号的放大器; 转换器，用于将放大的经编码的二进制信号转换成有限的三元信号; 频率发生器，用于产生具有预定频率的正弦波; 使用正弦波乘以三进制信号的乘数; 用于产生具有恒定强度的相干CW光的光源; 和马赫 - 策德尔（Mach-Zehnder）调制器，根据来自乘法器的三进制信号来调制CW光。

73. 发明申请

US20050058461A1 Optical transmission device 审中-公开
标题翻译：光传输装置
公开(公告)号：US20050058461A1
公开(公告)日：2005-03-17
申请号：US10843233
申请日：2004-05-10
申请人： Han-Lim Lee , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang , Sung-Kee Kim , Gyu-Woong Lee
发明人： Han-Lim Lee , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang , Sung-Kee Kim , Gyu-Woong Lee
IPC分类号： G02F1/035 , H04B10/2507 , H04B10/2513 , H04B10/2537 , H04B10/516 , H04B10/61 , H04B10/04
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5167
摘要： A duobinary optical transmission device that uses a duobinary optical transmission technique is disclosed. The duobinary optical transmission device may use an X-cut Mach-Zehnder interferometer type modulator. The duobinary optical transmission device includes a light source that outputs a carrier wave. A duobinary encoder encodes an input non-return-to-zero (NRZ) electrical signal. A low pass filter (LPF) converts the encoded signal into a 3-level electrical signal. An optical intensity modulator modulates the phase and light intensity of the carrier wave according to the 3-level electrical signal and outputs a 2-level optical duobinary signal. The optical intensity modulator may be an X-cut optical intensity modulator including a substrate; an optical waveguide formed on the substrate, and an electrode for applying an electric field.
摘要翻译：公开了一种使用双二进制光传输技术的双向光传输装置。双向光传输装置可以使用X切割马赫 - 曾德干涉仪型调制器。二元光传输装置包括输出载波的光源。二进制编码器对输入的不归零（NRZ）电信号进行编码。低通滤波器（LPF）将编码信号转换为3级电信号。光强调制器根据3电平电信号调制载波的相位和光强，并输出2电平的光双二进制信号。光强度调制器可以是包括衬底的X切割光强度调制器; 形成在基板上的光波导和用于施加电场的电极。

74. 发明授权

US08417116B2 RoF system providing HD wireless communication service and signal control method for the same 失效
标题翻译： RoF系统提供高清无线通信服务和信号控制方法相同
公开(公告)号：US08417116B2
公开(公告)日：2013-04-09
申请号：US12074999
申请日：2008-03-06
申请人： Sang-Ho Kim , Seong-Taek Hwang , Yun-Je Oh , Byung-Jik Kim
发明人： Sang-Ho Kim , Seong-Taek Hwang , Yun-Je Oh , Byung-Jik Kim
IPC分类号： H04B10/00 , H04B10/24
CPC分类号： H04B10/25758
摘要： Disclosed is an RoF system providing an HD wireless communication service. The RoF system includes the base station for transmitting and receiving each of the TDD/FDD individual signals and TDD/FDD combined signals, channel-combining downstream signals for a TDD scheme with downstream signals for an FDD scheme, and generating TDD/FDD mode control signals; a base station donor for receiving downstream RF signals from the base station, converting the resultant signals into downstream optical signals, outputting the converted signals, and delivering upstream optical signals, which are input to the remote station from the wireless terminals, to the base station; and the remote station for switching a corresponding duplexing mode operation according to wireless service channel states of the wireless terminals, converting the downstream optical signals transmitted from the base station donor into service RF signals, amplifying the converted service RF signals, and providing the amplified service RF signals to the wireless terminals through antennas.
摘要翻译：公开了提供HD无线通信服务的RoF系统。 RoF系统包括用于发送和接收每个TDD / FDD单独信号和TDD / FDD组合信号的基站，用于TDD方案的下行信号与用于FDD方案的下行信号的信道合并，以及生成TDD / FDD模式控制信号; 用于从基站接收下行RF信号的基站施加器，将所得到的信号转换成下行光信号，输出转换的信号，以及将从远端站输入的上行光信号从无线终端传送到基站 ; 以及远程站，用于根据无线终端的无线服务信道状态切换相应的双工模式操作，将从基站捐赠者发送的下行光信号转换成服务RF信号，放大转换后的服务RF信号，并提供放大服务 RF信号通过天线到无线终端。

75. 发明授权

US08126467B2 Method for controlling handoff in optical distributed network system using multi input multi output 有权
标题翻译：使用多输入多输出控制光分布式网络系统切换的方法
公开(公告)号：US08126467B2
公开(公告)日：2012-02-28
申请号：US11623791
申请日：2007-01-17
申请人： Do-In Choi , Seong-Taek Hwang , Yun-Je Oh
发明人： Do-In Choi , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04W36/00
CPC分类号： H04W36/18
摘要： A method for controlling a handoff in an optical distributed network system using MIMO (multi input multi output) is disclosed. The method includes steps of classifying a channel into a first channel and a second channel, and setting an active cell, receiving and measuring a signal strength of a predetermined cell, and determining on/off of the predetermined cell, when the predetermined cell turns on, releasing the first channel of the active cell, switching a path to a first channel of the predetermined cell, and keeping the second channel of the active cell, receiving and measuring a signal strength of the active cell, and when the measured signal strength is a preset critical value or less, turning off the active cell and when the active cell turns off, releasing the second channel of the active cell, and switching the path to a second channel of the predetermined cell.
摘要翻译：公开了一种使用MIMO（多输入多输出）控制光分布式网络系统中切换的方法。该方法包括以下步骤：将信道分类为第一信道和第二信道，并且当预定小区接通时，设置活动小区，接收和测量预定小区的信号强度，以及确定预定小区的开/关释放活动小区的第一信道，切换到预定小区的第一信道的路径，并保持活动小区的第二信道，接收并测量活动小区的信号强度，并且当测得的信号强度为预设的临界值或更小，关闭活动小区，并且当活动小区关闭时，释放活动小区的第二信道，并将路径切换到预定小区的第二信道。

76. 发明授权

US07949360B2 Method and apparatus for adaptively allocating transmission power for beam-forming combined with OSTBCs in a distributed wireless communication system 有权
标题翻译：用于在分布式无线通信系统中自适应地分配与OSTBC组合的波束形成的发射功率的方法和装置
公开(公告)号：US07949360B2
公开(公告)日：2011-05-24
申请号：US11977612
申请日：2007-10-25
申请人： Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
发明人： Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
IPC分类号： H03C7/02 , H04M1/00 , H04L27/00 , H01Q3/00 , H04B7/185 , H04B7/02 , H04B7/00 , H04B1/02 , H04B17/00 , H04B1/66 , H04B3/46
CPC分类号： H01Q3/30 , H04B7/0443 , H04B7/0669 , H04B7/0691 , H04W52/346 , H04W52/42
摘要： An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto.
摘要翻译：一种在分布式无线通信系统中自适应地分配与正交空间时间块码组合的波束成形的发射功率的装置，该装置包括：地理分布的波束形成子阵列，每个子阵列包括多个分布式天线放置在随机组中。中央处理单元根据多个子阵列中的子集提供预定的可组合功率分配方案，通过使用关于从接收方反馈的每个子阵列的大规模衰落的信息来识别方案的性能，设置根据所识别的性能，具有作为最佳子集的最佳性能的子集，以及根据所识别的性能执行功率分配。

77. 发明申请

US20100008582A1 METHOD FOR RECOGNIZING AND TRANSLATING CHARACTERS IN CAMERA-BASED IMAGE 有权
标题翻译：用于在基于摄像机的图像中识别和翻译字符的方法
公开(公告)号：US20100008582A1
公开(公告)日：2010-01-14
申请号：US12500094
申请日：2009-07-09
申请人： Sang-Ho KIM , Seong-Taek Hwang , Sang-Wook Oh , Hyun-Soo Kim , Jung-Rim Kim , Ji-Hoon Kim , Dong-Chang Lee , Yun-Je Oh , Hee-Won Jung
发明人： Sang-Ho KIM , Seong-Taek Hwang , Sang-Wook Oh , Hyun-Soo Kim , Jung-Rim Kim , Ji-Hoon Kim , Dong-Chang Lee , Yun-Je Oh , Hee-Won Jung
IPC分类号： G06K9/34 , G06F17/28 , G06K9/18
CPC分类号： G06K9/228 , G06F17/2863 , G06K9/22
摘要： A method for recognizing an image photographed by a camera and translating characters in connection with an electronic dictionary is provided. The method includes directly selecting an area to be recognized from the photographed character image and performing character recognition, translating and recognizing characters of a user's selected word in connection with dictionary data, and displaying translation result information of user's selected character or word in connection with dictionary data on a screen device. The recognition includes providing information on location of the selected character image area and location of the recognized character string words to the user, and then translating a character string or word in a location area selected by the user. The electronic dictionary-connected search and translation is for searching the character or word selected in connection with the electronic dictionary database, and providing translation result to the user.
摘要翻译：提供一种用于识别由相机拍摄的图像并且与电子词典相关联地翻译字符的方法。该方法包括从拍摄的字符图像中直接选择要识别的区域，并且与字典数据相关地执行字符识别，翻译和识别用户选择的字的字符，以及显示与字典有关的用户选择的字符或单词的翻译结果信息屏幕设备上的数据。识别包括将所选择的字符图像区域的位置和所识别的字符串字的位置的信息提供给用户，然后翻译由用户选择的位置区域中的字符串或字。电子词典连接的搜索和翻译用于搜索与电子词典数据库相关选择的字符或词，并向用户提供翻译结果。

78. 发明申请

US20090168808A1 APPARATUS AND METHOD FOR PERFORMING TIME SYNCHRONIZATION USING GPS INFORMATION IN COMMUNICATION SYSTEM 有权
标题翻译：在通信系统中使用GPS信息执行时间同步的装置和方法
公开(公告)号：US20090168808A1
公开(公告)日：2009-07-02
申请号：US12062557
申请日：2008-04-04
申请人： Jae-Hun CHO , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
发明人： Jae-Hun CHO , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
IPC分类号： H04J3/06 , H04B7/185
CPC分类号： G04G7/00 , H04J3/0644 , H04J3/0664 , H04J3/0667 , H04J3/0697
摘要： Disclosed is an apparatus and a method for performing time synchronization by using Global Positioning System (GPS) information in a communication system. The apparatus comprises a grand-master node having a GPS receiver, for generating a synchronizing message required to synchronize time on slave nodes by using Time Of Day (TOD) information received from the GPS receiver and at least one slave node for receiving the synchronizing message required to synchronize time from the grand-master node or from another slave node, for carrying out time synchronization operation by using an Offset and Frequency Compensation Clock (OFCC) synchronization process supporting time offset and frequency separation compensation, and for generating a synchronizing message required to synchronize time on other slave nodes.
摘要翻译：公开了一种通过在通信系统中使用全球定位系统（GPS）信息来执行时间同步的装置和方法。该装置包括具有GPS接收机的盛大主节点，用于通过使用从GPS接收机接收的时间（TOD）信息和至少一个从节点接收同步消息来产生用于同步从节点上的时间所需的同步消息需要同步来自大主节点或另一个从节点的时间，以便通过使用支持时间偏移和频率分离补偿的偏移和频率补偿时钟（OFCC）同步过程来执行时间同步操作，并用于生成所需的同步消息以在其他从节点上同步时间。

79. 发明申请

US20080260388A1 TIME DIVISION DUPLEXING REMOTE STATION HAVING LOW-NOISE AMPLIFIER SHARED FOR UPLINK AND DOWNLINK OPERATIONS AND WIRED RELAY METHOD USING THE SAME 失效
标题翻译：具有用于上下和下行操作的低噪声放大器的时分双工远程站和使用其的有线继电器方法
公开(公告)号：US20080260388A1
公开(公告)日：2008-10-23
申请号：US12105499
申请日：2008-04-18
申请人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
发明人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
IPC分类号： H04B10/00 , H04J3/00
CPC分类号： H04B10/25753 , H04W4/18 , H04W88/04
摘要： A wired relay method for using a remote station and an apparatus thereof for a Radio over Fiber (RoF) wired relay system supporting a Time Division Duplexing (TDD) wireless communication service, which shares an Low-Noise Amplifier (LNA) for both uplink and downlink operations. The remote station includes a block for dividing each of a downlink optical signal carrying service data and an optical signal carrying transmission/reception control information of the RoF wired relay system, which are input from a base station, a gain controller for separating an uplink Radio Frequency (RF) signal input from an antenna or a portion of a downlink RF signal output from a High-Power Amplifier (HPA) and for monitoring the strength of the input and output RF signals in order to control a gain of the LNA. A converter mutually converts an optical signal and an RF signal, an amplifier amplifies the converted RF signal, and an RF signal flow controller automatically controlls uplink and downlink transmission paths of the amplified RF signal according to a transmission/reception status of the RoF wired relay system.
摘要翻译：一种用于使用远程站的有线中继方法及其装置，用于支持时分双工（TDD）无线通信业务的无线电光纤（RoF）有线中继系统，该无线通信业务共享用于上行链路和/或上行链路的低噪声放大器（LNA）下行操作。远程站包括：用于分配来自基站输入的携带服务数据的下行链路光信号和携带RoF有线中继系统的发送/接收控制信息的光信号的块，用于分离上行链路无线电的增益控制器从天线输入的频率（RF）信号或从大功率放大器（HPA）输出的下行链路RF信号的一部分输入，并用于监视输入和输出RF信号的强度，以便控制LNA的增益。 A转换器相互转换光信号和RF信号，放大器放大转换的RF信号，RF信号流控制器根据RoF有线继电器的发送/接收状态自动控制放大的RF信号的上行链路和下行链路传输路径系统。

80. 发明申请

US20080107202A1 Multiple-input multiple-output communication system 审中-公开
标题翻译：多输入多输出通信系统
公开(公告)号：US20080107202A1
公开(公告)日：2008-05-08
申请号：US11906370
申请日：2007-10-02
申请人： Han-Lim Lee , Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Hoon Kim
发明人： Han-Lim Lee , Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Hoon Kim
IPC分类号： H04B7/02
CPC分类号： H04L27/18 , H04B7/0413 , H04B10/2575 , H04J13/00
摘要： A multiple-input multiple-output (MIMO) communication system includes a base station and a relay station that are connected through an optical fiber. The relay station wirelessly transmits through a plurality of antennas a signal received from the base station. The base station includes a plurality of symbol mappers for mapping input bit streams into a plurality of symbol signals; a MIMO multiplexer generating a plurality of exchange signals by exchanging bits of the symbol signals; and a plurality of code spreaders generating a plurality of spread signals by band spreading the exchange signals. The adoption of a wire transmission scheme for connecting the base station with the relay station through a single optical fiber provides benefits in cost reduction and complexity as the number of electrical-to-optical converters is reduced, and the bandwidth is superior to those in wireless transmission scheme
摘要翻译：多输入多输出（MIMO）通信系统包括通过光纤连接的基站和中继站。中继站通过多个天线无线地发送从基站接收的信号。基站包括用于将输入比特流映射成多个符号信号的多个符号映射器; MIMO多路复用器，通过交换所述符号信号的位来产生多个交换信号; 以及多个代码扩展器，通过对交换信号进行频谱扩展来产生多个扩展信号。采用通过单个光纤将基站与中继站连接的有线传输方案随着电 - 光转换器的数量的减少和复杂度的降低和复杂性的提高，带宽优于无线传输方案

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