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31. 发明授权

US08331672B2 Method and apparatus for recognizing character in character recognizing apparatus 有权
标题翻译：用于识别字符识别装置中的字符的方法和装置
公开(公告)号：US08331672B2
公开(公告)日：2012-12-11
申请号：US12490924
申请日：2009-06-24
申请人： Sang-Wook Oh , Seong-Taek Hwang , Sang-Ho Kim , Hee-Won Jung
发明人： Sang-Wook Oh , Seong-Taek Hwang , Sang-Ho Kim , Hee-Won Jung
IPC分类号： G06K9/34
CPC分类号： G06K9/325 , G06K9/00456 , G06K2209/01
摘要： Disclosed is a method and an apparatus for recognizing a character and efficiently removing a misrecognized character. The method includes detecting character regions including at least one character in an input image, converting the input image into a binary image, discriminating the characters from a non-character, re-classifying the character region including a number of characters equal to or less than a threshold into a non-character region, and outputting only the characters present in the character region.
摘要翻译：公开了一种用于识别角色并有效地去除错误识别的角色的方法和装置。所述方法包括检测包括输入图像中的至少一个字符的字符区域，将输入图像转换为二进制图像，从非字符识别字符，对包括等于或小于等于的字符数的字符区域进行重新分类阈值转换为非字符区域，并且仅输出字符区域中存在的字符。

32. 发明授权

US08059963B2 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：具有用于上行和下行操作共享的低噪声放大器的时分复用远程站和使用其的有线中继方法
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。

33. 发明授权

US07796891B2 ROF link system for supporting various services 有权
标题翻译： ROF链路系统支持各种业务
公开(公告)号：US07796891B2
公开(公告)日：2010-09-14
申请号：US11633838
申请日：2006-12-05
申请人： Han-Lim Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Jae-Hoon Lee , Yong-Gyoo Kim , Sang-Ho Kim , Sung-Kee Kim
发明人： Han-Lim Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Jae-Hoon Lee , Yong-Gyoo Kim , Sang-Ho Kim , Sung-Kee Kim
IPC分类号： H04B10/00
CPC分类号： H04B10/25758 , H04H20/69 , H04H20/71 , H04W88/085 , H04W88/10
摘要： Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.
摘要翻译：公开了用于支持各种业务的无线电光纤（ROF）系统，该系统包括：用于提供时分双工（TDD），频分双工（FDD）和广播服务的中央接入平台（CAP） TDD向下信号和FDD /广播向下信号分别转换成光信号，将转换后的光信号发送到远程接入单元（RAU），转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号分别变成电信号，并使用光循环器，以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU，分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号，并使用光循环器，以便彼此分离上下信号，其中RAU包括多个信号滤波/分离/组合单元，其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号，通过天线，并且将无线接收的TDD上行信号和FDD上行信号彼此分离。

34. 发明申请

US20080145057A1 Method and system for generating switching control signal separating transmission signal in optical repeater employing TDD scheme 失效
标题翻译：采用TDD方案的光中继器生成切换控制信号分离传输信号的方法和系统
公开(公告)号：US20080145057A1
公开(公告)日：2008-06-19
申请号：US12001632
申请日：2007-12-12
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Sang-Ho Kim
IPC分类号： H04J14/08 , H04B10/00
CPC分类号： H04W88/085 , H04Q11/0067 , H04Q2011/0088
摘要： Disclosed are a method and a system for generating switching control signal separating transmission signal on an access point and a mobile communication terminal in an optical repeater employing, for example, a TDD scheme. The method includes the steps of generating a control signal for generating a switching control signal in transmitting data from the AP and transmitting the control information to a remote during an idle time interval, detecting synchronization information on the downlink signal and time-delay information from the control information, delaying a time interval between the synchronization information and a starting point of the downlink signal, generating the switching control signal for the downlink signal according to the transmission time information of the downlink signal, and performing a switching operation according to the switching control signal and setting a downlink path.
摘要翻译：公开了一种用于在采用例如TDD方案的光中继器中产生在接入点和移动通信终端上分离传输信号的切换控制信号的方法和系统。该方法包括以下步骤：在空闲时间间隔期间产生用于产生切换控制信号以从AP发送数据并将控制信息发送给远端，检测下行链路信号的同步信息和来自控制信息，延迟同步信息和下行链路信号的起始点之间的时间间隔，根据下行链路信号的发送时间信息生成下行链路信号的切换控制信号，根据切换控制进行切换动作信号并设置下行链路路径。

35. 发明申请

US20070053311A1 ROF link apparatus capable of stable TDD wireless service 失效
标题翻译：能够稳定TDD无线服务的ROF链路装置
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。

36. 发明申请

US20060147211A1 Wavelength-division-multiplexed passive optical network 审中-公开
标题翻译：波分复用无源光网络
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。

37. 发明授权

US06931210B2 Bit-rate-independent optical receiver 失效
标题翻译：比特率独立光接收机
公开(公告)号：US06931210B2
公开(公告)日：2005-08-16
申请号：US09946211
申请日：2001-09-05
申请人： Sang-Ho Kim , Seong-Taek Hwang , Jun-Ho Koh , Yun-Je Oh
发明人： Sang-Ho Kim , Seong-Taek Hwang , Jun-Ho Koh , Yun-Je Oh
IPC分类号： H04B10/40 , H04B10/07 , H04B10/50 , H04B10/60 , H04B10/66 , H04L7/02 , H04B10/00 , H04B10/08 , H04B10/12 , H04B10/16 , H04B10/20
CPC分类号： H04B10/6932
摘要： Disclosed is a bit-rate-independent optical receiver including: a bit rate sensing unit for optoelectrically converting an input optical signal, while outputting a bit rate sensing signal; a variation sensing unit for outputting a bit rate variation sensing signal; a temperature sensing unit for sensing an internal temperature and outputting a temperature sensing signal; a signal reproducing unit for reproducing data and clocks, and in response to a clock correction signal, reproducing the data and clocks based on the clock correction signal; and, a control unit for calculating the bit rate based on the voltage level of the bit rate sensing signal in response to receiving the variation sensing signal, and compensating the calculated bit rate for errors resulting from a variation in temperature, and outputting a clock correction signal indicative of the temperature-compensated bit rate to the signal reproducing unit.
摘要翻译：公开了一种比特率独立的光接收机，包括：比特率感测单元，用于在输出比特率感测信号的同时对输入的光信号进行光电转换; 用于输出比特率变化感测信号的变化感测单元; 温度感测单元，用于感测内部温度并输出温度感测信号; 信号再现单元，用于再现数据和时钟，并响应于时钟校正信号，基于时钟校正信号再现数据和时钟; 以及控制单元，用于响应于接收到变化感测信号而基于比特率感测信号的电压电平计算比特率，并且补偿由于温度变化导致的错误的计算比特率，并输出时钟校正指示信号再现单元的温度补偿比特率的信号。

38. 发明授权

US08553083B2 Apparatus and method for automatically adjusting camera 有权
标题翻译：使用摄像机自动调整字符尺寸的装置和方法
公开(公告)号：US08553083B2
公开(公告)日：2013-10-08
申请号：US12632101
申请日：2009-12-07
申请人： Hyun-Soo Kim , Sang-Ho Kim , Seong-Taek Hwang , Sang-Wook Oh , Sung-Cheol Kim
发明人： Hyun-Soo Kim , Sang-Ho Kim , Seong-Taek Hwang , Sang-Wook Oh , Sung-Cheol Kim
IPC分类号： H04N7/18 , G09G5/00
CPC分类号： H04N5/23296 , G06K9/20 , G09G5/00 , G09G5/227 , G09G2340/0407
摘要： A method is provided for automatically adjusting a size of characters using a camera. The method includes receiving an image with characters; adjusting a focus of the image with characters and detecting a region and a size of characters in the image; determining whether the size of the characters in the image falls within a preset range; recognizing the characters in the image and displaying the recognition results, if the size of characters falls within the preset range; and automatically adjusting a zoom ratio of the image and recognizing the characters in the resized image, if the size of the characters does not fall within the preset range.
摘要翻译：提供了一种使用相机自动调整字符大小的方法。该方法包括接收具有字符的图像; 用字符调整图像的焦点并检测图像中的字符的区域和大小; 确定图像中的字符的大小是否落在预设范围内; 识别图像中的字符并显示识别结果，如果字符的大小落在预设范围内; 并且如果字符的大小不在预设范围内，则自动调整图像的缩放倍数并识别被调整大小的图像中的字符。

39. 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。

40. 发明授权

US07904106B2 Method and apparatus of adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes based on symbol error rate in distributed wireless communication system 有权
标题翻译：基于分布式无线通信系统中的符号错误率，自适应地分配波束成形的发射功率与正交空时块码组合的方法和装置
公开(公告)号：US07904106B2
公开(公告)日：2011-03-08
申请号：US11974402
申请日：2007-10-12
申请人： Shuangfeng Han , Seong-Taek Hwang , Hoon Kim , Sang-Ho Kim , Jae-Hun Cho , Jae-Hoon Lee , Ki-Uk Song
发明人： Shuangfeng Han , Seong-Taek Hwang , Hoon Kim , Sang-Ho Kim , Jae-Hun Cho , Jae-Hoon Lee , Ki-Uk Song
IPC分类号： H04B1/04 , H04B7/02 , H04B7/00 , H04B7/185 , H04B1/02 , H04B17/00 , H04B1/66 , H04B3/46 , H03C7/02 , H04M1/00 , H04L27/00 , H01Q3/00
CPC分类号： H04W52/42 , H04B7/043 , H04B7/0617 , H04B7/0691 , H04L1/0625 , H04L1/0668 , H04W52/04
摘要： Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.
摘要翻译：公开了一种用于在分布式无线通信系统中自适应地分配与正交空时块码（OSTBC）组合的波束成形的发射功率的装置和方法，该装置包括：多个用于波束成形的子阵列，其在地理上分布并且每个其中包括放置在随机组中的多个分布式天线; 以及中央处理单元，用于通过应用根据可以通过组合子阵列获得的子集的预定功率分配方案，通过Nakagami衰落参数和关于每个子级的大规模衰落的信息来应用子集的性能 - 从接收方反馈的用于根据所识别的性能确定具有最佳性能的子集作为最佳子集的子阵列，以及用于基于所述子集作为所述最佳子集执行功率分配。

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