公开(公告)号：US07450849B2

公开(公告)日：2008-11-11

申请号：US11197176

申请日：2005-08-04

申请人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04J14/0227 ,  H04B10/071 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength-division multiplexing passive optical network (WDM-PON) comprising a central office for generating monitor light and multiplexed downstream optical signals to be out and detecting upstream optical signals, the central office including a signal monitoring unit monitoring based on fed-back monitor light if the wavelengths of the upstream optical signals and the wavelengths of the downstream optical signals change, a plurality of subscriber units for detecting corresponding downstream optical signals and generating upstream optical signals, a remote node for reflecting the monitor light to the central office, de-multiplexing multiplexed downstream optical signals so as to output the downstream optical signals to the corresponding subscriber units, and multiplexing the upstream optical signals so as to output the upstream optical signals to the central office, a first optical path for linking the central office to the remote node, and a plurality of second optical paths for linking the remote node to the subscriber units, respectively.

摘要翻译： 一种波分复用无源光网络（WDM-PON），包括用于产生监控光的中心局和多路复用的下行光信号，以便检测上行光信号，该中心局包括基于反馈监视器的信号监控单元 如果上游光信号的波长和下游光信号的波长发生变化，则用于检测相应的下行光信号并产生上行光信号的多个用户单元，用于将监控光反射到中心局的远端节点 复用下行光信号，以将下行光信号输出到对应的用户单元，并复用上行光信号，以将上行光信号输出到中心局;第一光路，用于将中心局连接到 远程节点和用于li的多个第二光路 将远程节点分别分配给用户单元。

公开(公告)号：US20070147835A1

公开(公告)日：2007-06-28

申请号：US11606666

申请日：2006-11-30

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： A method for controlling optical transmitters in a Wavelength Division Multiplexed (WDM)-Passive Optical Network (PON) system includes the steps of: determining the existence of an upward optical signal to control an optical transmitter provided for each corresponding Optical Node Terminal (ONT) to be turned on/off in an Optical Line Termination (OLT); and monitoring the state of a transmission buffer within an Ethernet switch to control a corresponding optical transmitter to be turned on/off in accordance with the state of the transmission buffer in each of the ONTs.

摘要翻译： 一种用于控制波分复用（WDM）无源光网络（PON）系统中的光发射机的方法包括以下步骤：确定存在向上的光信号以控制为每个对应的光节点终端（ONT）提供的光发射机， 在光线路终端（OLT）中打开/关闭; 以及监视以太网交换机内的发送缓冲器的状态，以根据每个ONT中的发送缓冲器的状态来控制相应的光发送器被接通/断开。

公开(公告)号：US20050185256A1

公开(公告)日：2005-08-25

申请号：US10888727

申请日：2004-07-09

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： G02B6/42 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094

CPC分类号： H01S3/06795 ,  H01S3/06758 ,  H01S3/094003

摘要： Disclosed is a broadband light source with a direct pumping structure including: a first gain medium for generating an amplified spontaneous emission; and a first pump light source connected in series to the first gain medium, for outputting a first pump light provided in the first gain medium.

摘要翻译： 公开了一种具有直接泵浦结构的宽带光源，包括：用于产生放大的自发发射的第一增益介质; 以及与第一增益介质串联连接的第一泵浦光源，用于输出设置在第一增益介质中的第一泵浦光。

公开(公告)号：US20050046926A1

公开(公告)日：2005-03-03

申请号：US10780217

申请日：2004-02-17

申请人： Seong-Taek Hwang ,  Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh

发明人： Seong-Taek Hwang ,  Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh

IPC分类号： H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/00

CPC分类号： H01S3/06795 ,  H01S3/094003

摘要： A broadband light source with a dual port structure includes a gain medium pumped by inputted pump light for outputting ASE light through both terminals thereof, and a pumping section for pumping the gain medium. The broadband light source outputs ASE light, which is outputted from both terminals of the gain medium, to an exterior through first and second output terminals.

摘要翻译： 具有双端口结构的宽带光源包括通过输入泵浦光泵浦的增益介质，用于通过其两个端子输出ASE光，以及用于泵浦增益介质的泵送部分。 宽带光源通过第一和第二输出端子将从增益介质的两端输出的ASE光输出到外部。

公开(公告)号：US08594424B2

公开(公告)日：2013-11-26

申请号：US12632118

申请日：2009-12-07

申请人： Seong-Taek Hwang ,  Sang-Wook Oh ,  Hyun-Soo Kim ,  Sang-Ho Kim ,  Hee-Min Kwon ,  Yun-Je Oh ,  Byung-Jik Kim

发明人： Seong-Taek Hwang ,  Sang-Wook Oh ,  Hyun-Soo Kim ,  Sang-Ho Kim ,  Hee-Min Kwon ,  Yun-Je Oh ,  Byung-Jik Kim

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： H04N5/225 ,  G06K9/228 ,  G06K9/723 ,  G06K2209/01

摘要： An apparatus and method for recognizing characters of an image captured using a camera in a mobile terminal are provided, wherein an image of a signboard is captured, a text area is extracted from the captured image of the signboard, characters are recognized from the extracted text area, similar characters up to a predetermined priority level are generated for each recognized character of the extracted text area, location information of an area within a predetermined range from a current position of a user is acquired, store names are extracted from the location information, text is generated by combining the similar characters according to weights, the text are compared with the extracted store names, and a comparison result is output.

摘要翻译： 提供一种用于识别在移动终端中使用相机拍摄的图像的字符的装置和方法，其中捕获招牌的图像，从所述招牌的所捕获的图像中提取文本区域，从所提取的文本中识别字符 为所提取的文本区域的每个识别字符生成直到预定优先级的类似字符，获取来自用户的当前位置的预定范围内的区域的位置信息，从位置信息中提取存储名称， 通过根据权重组合相似的字符来生成文本，将文本与提取的商店名称进行比较，并输出比较结果。

公开(公告)号：US08059963B2

公开(公告)日：2011-11-15

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

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 controls 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。

公开(公告)号：US20070053311A1

公开(公告)日：2007-03-08

申请号：US11514440

申请日：2006-09-01

申请人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

发明人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

IPC分类号： H04J3/00

CPC分类号： H04W88/085

摘要： A radio over fiber (ROF) link apparatus capable of a stable TDD wireless service for a time division duplexing (TDD) baseband signal includes a central access platform (CAP) for receiving various kinds of data including the TDD baseband signal from upper layers, multiplexing the data, electro-optically converting the multiplexed data, and transmitting the converted data as downstream data through an optical fiber, and opto-electrically converting upstream data received through the optical fiber, demultiplexing the converted upstream data, and transmitting the demultiplexed upstream data to the respective upper layers, and a remote access unit (RAU) for receiving the downstream data through the optical fiber, opto-electrically converting the received downstream data to the multiplexed data, demultiplexing the multiplexed data, performing a wireless access process of the demultiplexed data, and transmitting the wireless access processed data to a wireless local area network (WLAN) service terminal through an antenna.

摘要翻译： 能够对TDD时基双工（TDD）基带信号进行稳定的TDD无线业务的无线电光纤（ROF）链路装置包括用于从上层接收包括TDD基带信号的各种数据的中央接入平台（CAP） 数据，电光转换多路复用数据，并通过光纤将转换后的数据作为下行数据发送，并对通过光纤接收的上行数据进行光电转换，对转换的上行数据进行解复用，并将解复用的上行数据发送到 各自的上层以及用于通过光纤接收下游数据的远程访问单元（RAU），将接收到的下游数据光电转换为多路复用数据，解复用多路复用数据，执行解复用数据的无线接入处理 ，并将无线接入处理的数据发送到无线局域网（WLAN）服务 e端子通过天线。

公开(公告)号：US20060147211A1

公开(公告)日：2006-07-06

申请号：US11197175

申请日：2005-08-04

申请人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength division multiplexing passive optical network including optical lines for link is disclosed. The passive optical network includes a plurality of optical network units each of which generates an upstream optical signal; a central office for generating downstream optical signals to be provided to each of the optical network units, and differentially converting each of the upstream optical signals into a monitoring signal and a received signal. Changes in the wavelength of each of the upstream optical signals are monitored and if there is an abnormality in each optical line by using relevant monitoring signals. The network also includes a remote node for multiplexing and outputting the upstream optical signals to the central office, and demultiplexing and outputting the downstream optical signals to corresponding optical network units.

摘要翻译： 公开了包括用于链路的光线路的波分复用无源光网络。 无源光网络包括多个光网络单元，每个光网络单元产生上行光信号; 用于产生要提供给每个光网络单元的下行光信号的中心局，并且将每个上游光信号差分转换成监视信号和接收信号。 监视每个上行光信号的波长变化，并且如果通过使用相关的监视信号在每个光线路中存在异常。 该网络还包括用于将上行光信号复用并输出到中心局的远程节点，并将下行光信号解复用并输出到对应的光网络单元。

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。

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。