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51. 发明授权

US07826430B2 Method and system for controlling remote in a TDD optical repeater 有权
标题翻译：用于在TDD光中继器中控制远端的方法和系统
公开(公告)号：US07826430B2
公开(公告)日：2010-11-02
申请号：US11983483
申请日：2007-11-09
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： H04J3/00 , H04J3/06
CPC分类号： H04J14/02 , H04J3/0682 , H04W88/085
摘要： A method and apparatus for transmitting data to an Access Point (AP) and a Mobile Station (MS) in a Time Division Duplex (TDD) optical repeater. A main donor generates a control frame for controlling a remote, upon receipt of data from the AP, and transmits the control frame to the remote during a non-downlink transmission period. The remote analyzes the control frame received from the main donor, detects sync information about a downlink signal and an uplink signal, and remote control information from the analyzed control frame, performs a control operation according to the detected remote control information, and generates a status frame for notifying the main donor of the status of the remote upon receipt of data from the MS. The status frame is transmitted from the remote to the main donor during a non-uplink transmission period.
摘要翻译：一种用于向时分双工（TDD）光中继器中的接入点（AP）和移动台（MS）发送数据的方法和装置。在从AP接收到数据时，主要供体生成用于控制远程的控制帧，并且在非下行链路传输周期期间将控制帧发送到远程。遥控器分析从主供体接收到的控制帧，检测关于下行链路信号和上行链路信号的同步信息，以及来自分析的控制帧的遥控信息，根据检测到的遥控信息执行控制操作，并且生成状态框架，用于在从MS接收到数据时通知主要供体的远程状态。在非上行链路传输期间，状态帧从远端发送到主供体。

52. 发明申请

US20100239174A1 METHOD FOR CREATING PANORAMA 有权
标题翻译：创造全景的方法
公开(公告)号：US20100239174A1
公开(公告)日：2010-09-23
申请号：US12726762
申请日：2010-03-18
申请人： Sang-Wook Oh , Seong-Taek Hwang , Hyun-Soo Kim , Sang-Ho Kim , Ho-Seok An , Mu-Sik Kwon , Ji-Hoon Kim , Dong-Chang Lee
发明人： Sang-Wook Oh , Seong-Taek Hwang , Hyun-Soo Kim , Sang-Ho Kim , Ho-Seok An , Mu-Sik Kwon , Ji-Hoon Kim , Dong-Chang Lee
IPC分类号： G06K9/36 , G06K9/48
CPC分类号： G06K9/32 , G06K2009/2045 , H04N1/3876 , H04N5/232 , H04N5/23238
摘要： A method is provided for creating a panorama. The method includes photographing a plurality of images having same backgrounds and different forms of a subject, determining a size and a position of a reference region for creating a panorama using the images, extracting a target region within the reference region from each of the images, detecting same portions in adjacent target regions, and creating a panorama by combining the adjacent target regions on the basis of the same portions.
摘要翻译：提供了一种用于创建全景图的方法。该方法包括拍摄具有相同背景和不同形式的对象的多个图像，使用该图像确定用于创建全景的参考区域的大小和位置，从每个图像提取参考区域内的目标区域，检测相邻目标区域中的相同部分，以及通过基于相同部分组合相邻目标区域来创建全景图。

53. 发明授权

US07773887B2 Single wavelength bi-directional RoF link apparatus or signal transmission in TDD wireless system 有权
标题翻译：单波长双向RoF链路设备或TDD无线系统中的信号传输
公开(公告)号：US07773887B2
公开(公告)日：2010-08-10
申请号：US11642260
申请日：2006-12-20
申请人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
发明人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
IPC分类号： H04B10/00 , H04B10/24 , H04J14/00
CPC分类号： H04B10/25758 , H04B7/2606
摘要： A single wavelength bi-directional RoF link apparatus for signal transmission in a TDD wireless system includes a main donor for receiving an RF signal of downstream data from an upper layer, electrooptic converting the received RF signal to an optical signal, and transmitting the converted optical signal via an optical fiber in response to a TDD switching signal received from the upper layer, or receiving an optical signal of upstream data via the optical fiber, opto-electric converting the received optical signal to an RF signal in response to the TDD switching signal received from the upper layer, and transmitting the converted optical signal to the main donor; and a remote for receiving the optical signal of the downstream data via the optical fiber from the main donor, opto-electric converting the received optical signal to an RF signal, and emitting the converted RF signal to a terminal via an antenna in response to a TDD switching signal generated by a switch timing signal generation circuit, or receiving an RF signal of upstream data from the terminal, electro-optic converting the received RF signal to an optical signal in response to the TDD switching signal generated by the switch timing signal generation circuit, and transmitting the converted optical signal to the main donor via the optical fiber.
摘要翻译：用于TDD无线系统中的信号传输的单波长双向RoF链路装置包括：主要供体，用于从上层接收下行数据的RF信号，将所接收的RF信号电光转换为光信号，并将转换后的光响应于从上层接收的TDD切换信号，或经由光纤接收上行数据的光信号，经由光纤发送信号，响应于TDD切换信号将接收到的光信号光电转换为RF信号从上层接收，并将转换的光信号发送到主供体; 以及遥控器，用于经由来自主施体的光纤接收下行数据的光信号，将所接收的光信号光电转换成RF信号，并响应于一个天线经由天线将转换的RF信号发射到终端 TDD切换信号，或者从终端接收上行数据的RF信号，根据切换定时信号生成产生的TDD切换信号将接收的RF信号电光转换为光信号并且经由光纤将转换后的光信号发送到主供体。

54. 发明申请

US20080117961A1 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：US20080117961A1
公开(公告)日：2008-05-22
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： H04L27/00
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。

55. 发明申请

US20070258432A1 Single wavelength Bi-directional RoF link apparatus for signal transmission in TDD wireless system 有权
标题翻译：单波长双向RoF链路设备，用于TDD无线系统中的信号传输
公开(公告)号：US20070258432A1
公开(公告)日：2007-11-08
申请号：US11642260
申请日：2006-12-20
申请人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
发明人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
IPC分类号： H04B7/212
CPC分类号： H04B10/25758 , H04B7/2606
摘要： A single wavelength bi-directional RoF link apparatus for signal transmission in a TDD wireless system includes a main donor for receiving an RF signal of downstream data from an upper layer, electrooptic converting the received RF signal to an optical signal, and transmitting the converted optical signal via an optical fiber in response to a TDD switching signal received from the upper layer, or receiving an optical signal of upstream data via the optical fiber, opto-electric converting the received optical signal to an RF signal in response to the TDD switching signal received from the upper layer, and transmitting the converted optical signal to the main donor; and a remote for receiving the optical signal of the downstream data via the optical fiber from the main donor, opto-electric converting the received optical signal to an RF signal, and emitting the converted RF signal to a terminal via an antenna in response to a TDD switching signal generated by a switch timing signal generation circuit, or receiving an RF signal of upstream data from the terminal, electro-optic converting the received RF signal to an optical signal in response to the TDD switching signal generated by the switch timing signal generation circuit, and transmitting the converted optical signal to the main donor via the optical fiber.
摘要翻译：在TDD无线系统中用于信号传输的单波长双向RoF链路装置包括：主要供体，用于从上层接收下行数据的RF信号，将所接收的RF信号电光转换成光信号，并将转换后的光响应于从上层接收的TDD切换信号，或经由光纤接收上行数据的光信号，经由光纤发送信号，响应于TDD切换信号将接收到的光信号光电转换为RF信号从上层接收，并将转换的光信号发送到主供体; 以及遥控器，用于经由来自主施体的光纤接收下行数据的光信号，将所接收的光信号光电转换成RF信号，并响应于一个天线经由天线将转换的RF信号发射到终端 TDD切换信号，或者从终端接收上行数据的RF信号，根据切换定时信号生成产生的TDD切换信号将接收的RF信号电光转换为光信号并且经由光纤将转换后的光信号发送到主供体。

56. 发明授权

US07271949B2 Multi-wavelength light source and wavelength division multiplexing system using the same 失效
标题翻译：多波长光源和波分复用系统使用相同
公开(公告)号：US07271949B2
公开(公告)日：2007-09-18
申请号：US10853969
申请日：2004-05-26
申请人： Sang-Ho Kim , Seong-Taek Hwang
发明人： Sang-Ho Kim , Seong-Taek Hwang
IPC分类号： H04B10/17
CPC分类号： H04J14/02 , H01S3/06754 , H01S3/06795 , H01S3/08086 , H01S3/1608 , H01S3/1613 , H01S3/1616
摘要： A multi-wavelength light source includes an amplifier for generating light over a wide wavelength range; and, an optical fiber grating including a plurality of gratings formed on an optical fiber in in parallel with each other, thereby dividing the light inputted from the amplifier into respective channels having different wavelengths to reflect the divided channels to the amplifier. The amplifier amplifies each channel reflected in the gratings.
摘要翻译：多波长光源包括用于在宽波长范围内产生光的放大器; 以及包括形成在光纤上的多个光栅彼此并联的光纤光栅，从而将从放大器输入的光分成具有不同波长的各个通道，以将分离的通道反射到放大器。放大器放大在光栅中反射的每个通道。

57. 发明申请

US20070147273A1 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：US20070147273A1
公开(公告)日：2007-06-28
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： H04J3/00
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。

58. 发明授权

US06975448B2 Automatic gain controller of optical fiber amplifier 失效
标题翻译：光纤放大器自动增益控制器
公开(公告)号：US06975448B2
公开(公告)日：2005-12-13
申请号：US10719140
申请日：2003-11-21
申请人： Se-Hong Park , Sang-Ho Kim , Kwan-Woong Song , Seong-Taek Hwang , Tae-Sung Park
发明人： Se-Hong Park , Sang-Ho Kim , Kwan-Woong Song , Seong-Taek Hwang , Tae-Sung Park
IPC分类号： H01S3/10 , H01S3/00 , H01S3/067 , H01S3/13 , H01S3/131 , H04B10/17
CPC分类号： H04B10/2942 , H01S3/06754 , H01S3/10015 , H01S3/1301
摘要： An automatic gain controller for controlling gain values of an optical fiber amplifier. The automatic gain controller includes a first opto-electric conversion unit for converting a portion of optical signals that are input into the optical fiber amplifier into electrical signals to output the converted electrical signals. A second opto-electric conversion unit converts a portion of output optical signals output from the optical fiber amplifier into electrical signals and then outputs the converted electrical signals. A transient suppressing unit generates pulse typed waveforms when a change in channel number is generated during monitoring outputs of the first opto-electric conversion unit, and a comparing unit compares the sum of output signals of the transient suppressing unit and output signals of the first opto-electric conversion unit with output signals of the second opto-electric conversion unit. A control unit outputs pump control signals in response to the output signals of the transient suppressing unit and output signals of the comparing unit, and a first pumping light source unit supplies pumping light to the optical fiber amplifier in response to the inputting of the pump control signals.
摘要翻译：一种用于控制光纤放大器的增益值的自动增益控制器。自动增益控制器包括：第一光电转换单元，用于将输入到光纤放大器的光信号的一部分转换成电信号，以输出转换的电信号。第二光电转换单元将从光纤放大器输出的输出光信号的一部分转换为电信号，然后输出转换的电信号。当在第一光电转换单元的监视输出期间产生通道号的变化时，瞬态抑制单元产生脉冲类型波形，比较单元比较瞬态抑制单元的输出信号和第一光电转换单元的输出信号之和电转换单元，其具有第二光电转换单元的输出信号。控制单元响应瞬态抑制单元的输出信号和比较单元的输出信号输出泵控制信号，第一泵浦光源单元响应于泵控制的输入向泵浦光提供泵浦光信号。

59. 发明申请

US20050185259A1 Broadband light source 有权
标题翻译：宽带光源
公开(公告)号：US20050185259A1
公开(公告)日：2005-08-25
申请号：US10858913
申请日：2004-06-02
申请人： Sang-Ho Kim , Seong-Taek Hwang , Se-Hong Park , Kwan-Woong Song , Gyu-Woong Lee
发明人： Sang-Ho Kim , Seong-Taek Hwang , Se-Hong Park , Kwan-Woong Song , Gyu-Woong Lee
IPC分类号： H01S3/10 , G02B6/26 , G02F1/35 , H01S3/00 , H01S3/067 , H01S3/094 , H01S5/00 , H04J14/00
CPC分类号： H04B10/506 , H01S3/005 , H01S3/0078 , H01S3/06758 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094023 , H01S5/0064 , H04B10/294
摘要： A broadband light source includes an optical amplifier having amplifying mediums connected in series outputs an amplified spontaneous emission light over a wide wavelength range forward or backward. A circulator connected in series to the optical amplifier returns back to the amplifier spontaneous emission light outputted backwardly from the amplifier. A first pumping means located between the circulator and the optical amplifier pumps a pumping light to the optical amplifier, and a second pumping means located after the optical amplifier pumps a pumping light to the optical amplifier.
摘要翻译：宽带光源包括具有串联连接的放大介质的光放大器，其在宽波长范围内向前或向后输出放大的自发发射光。与光放大器串联连接的环行器返回到从放大器向后输出的放大器自发发射光。位于循环器和光学放大器之间的第一泵送装置将泵浦光泵送到光放大器，以及位于光放大器将泵浦光泵送到光放大器之后的第二泵装置。

60. 发明申请

US20060239303A1 Method of performing periodical synchronization for ensuring start of super frame in residential Ethernet system 审中-公开
标题翻译：确保住宅以太网系统中超帧启动的周期性同步方法
公开(公告)号：US20060239303A1
公开(公告)日：2006-10-26
申请号：US11410422
申请日：2006-04-25
申请人： Jae-Hun Cho , Jong-Ho Yoon , Kwan-Soo Lee , Yun-Je Oh , Jun-Ho Koh , Si-Hai Wang , Sang-Ho Kim
发明人： Jae-Hun Cho , Jong-Ho Yoon , Kwan-Soo Lee , Yun-Je Oh , Jun-Ho Koh , Si-Hai Wang , Sang-Ho Kim
IPC分类号： H04J3/06 , H04J3/12 , H04J3/02
CPC分类号： H04J3/1682 , H04J3/0638
摘要： Disclosed is a method of performing a periodical synchronization at a predetermined transmission link for ensuring a start of a super frame in a residential Ethernet system. The method includes the steps of ensuring a start of a first predetermined super frame at the predetermined transmission link, transmitting Sync frames and Async frames through a predetermined number (N-1) of super frames, in which N is a total number of the super frames, and controlling an Async frame to be transmitted at an end point of the (N-1) super frames in such a manner that a start of a next super frame (Nth super frame) is strictly ensured, thereby maintaining a synchronization for the start of the super frame.
摘要翻译：公开了一种在预定的传输链路上执行周期性同步的方法，以确保在住宅以太网系统中启动超帧。该方法包括以下步骤：确保在预定传输链路上开始第一预定超帧，通过预定数量（N-1）超帧传输同步帧和异步帧，其中N是超级帧的总数帧，并且控制在（N-1）个超帧的终点处发送的异步帧，使得下一个超帧（N ^{超帧）的开始是严格的从而保持超帧开始的同步。}

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