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41. 发明申请

US20070047668A1 Single side band modulator module and single side band modulator device using the same 审中-公开
标题翻译：单边带调制器模块和使用其的单边带调制器器件
公开(公告)号：US20070047668A1
公开(公告)日：2007-03-01
申请号：US11514438
申请日：2006-09-01
申请人： Sung-Kee Kim , Hoon Kim , Seong-Taek Hwang
发明人： Sung-Kee Kim , Hoon Kim , Seong-Taek Hwang
IPC分类号： H04L27/04
CPC分类号： H04B1/68 , H04L27/04
摘要： A single side band (SSB) modulator module using a carrier frequency includes: first and second Mach-Zender interferometers for modulating the carrier frequency and first and second signals into an SSB signal; and an arm, which is connected to both ends at which the first and second Mach-Zender interferometers are connected, splits the carrier frequency, and outputs a split portion to the first and second Mach-Zender interferometers.
摘要翻译：使用载波频率的单边带（SSB）调制器模块包括：第一和第二马赫 - 泽德干涉仪，用于将载波频率和第一和第二信号调制成SSB信号; 并且连接到第一和第二马赫 - 泽德干涉仪连接的两端的臂分离载波频率，并将分割部分输出到第一和第二马赫 - 泽德干涉仪。

42. 发明申请

US20050047785A1 Bi-directional wavelength division multiplexing passive optical network and method for allocating wavelength band 审中-公开
标题翻译：双向波分复用无源光网络和波长带分配方法
公开(公告)号：US20050047785A1
公开(公告)日：2005-03-03
申请号：US10818194
申请日：2004-04-05
申请人： Seong-Taek Hwang , Dae-Kwang Jung , Hoon Kim , Yun-Je Oh , Chang-Sup Shim
发明人： Seong-Taek Hwang , Dae-Kwang Jung , Hoon Kim , Yun-Je Oh , Chang-Sup Shim
IPC分类号： G02B6/42 , H04B10/00 , H04B10/272 , H04J14/00 , H04J14/02 , H04L12/28 , H04L12/44
CPC分类号： H04J14/0282 , G02B6/4246 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J2014/0253
摘要： A bi-directional WDM-PON and a method for allocating a wavelength band are disclosed. In the bi-directional WDM-PON, bi-directional transceiver modules are used to transmit optical signals of different wavelengths in the upstream and downstream directions. An L-band and an S-band are used to allocate wavelength bands to the upstream and downstream optical signals so that a wavelength band interval at which the respective wavelength bands of the upstream and downstream optical signals are spaced is set between 50 nm to 150 nm.
摘要翻译：公开了双向WDM-PON和分配波长带的方法。在双向WDM-PON中，双向收发模块用于在上行和下行方向传输不同波长的光信号。使用L波段和S波段将波长带分配给上游和下游光信号，使得上游和下游光信号的相应波长带间隔开的波长带间隔设置在50nm至150nm nm。

43. 发明授权

US08655074B2 Document editing apparatus and method 有权
标题翻译：文件编辑装置及方法
公开(公告)号：US08655074B2
公开(公告)日：2014-02-18
申请号：US13019720
申请日：2011-02-02
申请人： Ji-Hoon Kim , Sang-Ho Kim , Seong-Taek Hwang , Dong-Chang Lee
发明人： Ji-Hoon Kim , Sang-Ho Kim , Seong-Taek Hwang , Dong-Chang Lee
IPC分类号： G06K9/00 , G06K9/34
CPC分类号： G06K9/325 , G06K9/00456 , G06K2209/01
摘要： A method for storing a document recognition result is proposed. The method includes selecting a picture area from a document image, storing an image of the selected picture area in an image file format, removing the selected picture area, filling the removed picture area with a surrounding background color, and performing character recognition of a text area.
摘要翻译：提出了一种用于存储文档识别结果的方法。该方法包括从文档图像中选择图像区域，以图像文件格式存储所选择的图像区域的图像，去除所选择的图像区域，用周围的背景颜色填充去除的图像区域，以及执行文本的字符识别区。

44. 发明申请

US20120260196A1 APPARATUS AND METHOD FOR SHARING INFORMATION IN VIRTUAL SPACE 审中-公开
标题翻译：虚拟空间中共享信息的装置和方法
公开(公告)号：US20120260196A1
公开(公告)日：2012-10-11
申请号：US13333264
申请日：2011-12-21
申请人： Ji-Hoon KIM , Won-Suk Chang , Dong-Chang Lee , An-Na Park , Dong-Hoon Jang , Seong-Taek Hwang
发明人： Ji-Hoon KIM , Won-Suk Chang , Dong-Chang Lee , An-Na Park , Dong-Hoon Jang , Seong-Taek Hwang
IPC分类号： G06F3/048
CPC分类号： G06Q10/10
摘要： A method and apparatus for sharing information in a virtual space are provided. Upon receiving a bulletin space-generation request, generating a bulletin space and displays the bulletin space on a screen. Upon receiving a bulletin content-creation request, executing a bulletin content-creation tool stored in the memory unit and displaying the bulletin content-creation tool on the screen. When a bulletin content is created by the bulletin content-creation tool, storing the created bulletin content corresponding to the bulletin space and displaying the bulletin content on the screen.
摘要翻译：提供了一种用于在虚拟空间中共享信息的方法和装置。在接收到公告空间生成请求时，生成公告空间并在屏幕上显示公告空间。在接收到公告内容创建请求时，执行存储在存储器单元中的公告内容创建工具，并在该屏幕上显示公告内容创建工具。当公告内容创建工具创建公告内容时，存储与公告空间相对应的创建的公告内容并在屏幕上显示公告内容。

45. 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。

46. 发明授权

US07277646B2 Duobinary optical transmitter 失效
标题翻译：双色光发射机
公开(公告)号：US07277646B2
公开(公告)日：2007-10-02
申请号：US10862251
申请日：2004-06-07
申请人： Hoon Kim , Seong-Taek Hwang
发明人： Hoon Kim , Seong-Taek Hwang
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/25137 , H04B10/5055 , H04B10/5167
摘要： An optical transmitter for generating an optical signal includes: a precoder for coding an electrical signal of binary data; a continuous-wave (CW) light source for generating a continuous wave light; an optical phase modulator for modulating the phase of an optical signal outputted from the CW light source according to an electrical signal outputted from the precoder; a birefrigent material for bi-refracting a signal outputted from the optical phase modulator and for outputting the bi-refracted signal; and a polarizer for permitting only optical signals of a specific polarization direction to transmit therethrough when optical signals outputted from the birefrigent material are applied.
摘要翻译：一种用于产生光信号的光发射机包括：用于对二进制数据的电信号进行编码的预编码器; 用于产生连续波光的连续波（CW）光源; 光相位调制器，用于根据从预编码器输出的电信号调制从CW光源输出的光信号的相位; 用于双折射从所述光相位调制器输出的信号并输出所述双折射信号的双折射材料; 以及偏振器，用于仅施加从双重材料输出的光信号时，仅允许特定偏振方向的光信号透射。

47. 发明申请

US20070223933A1 Optical transmitter with feed-forward compensation 审中-公开
标题翻译：具有前馈补偿的光发射机
公开(公告)号：US20070223933A1
公开(公告)日：2007-09-27
申请号：US11653151
申请日：2007-01-12
申请人： Hoon Kim , Seong-Taek Hwang , Yeong-Wan Choi , Yeong-Seol Yun , Jun-Jae Lee
发明人： Hoon Kim , Seong-Taek Hwang , Yeong-Wan Choi , Yeong-Seol Yun , Jun-Jae Lee
IPC分类号： H04B10/00
CPC分类号： H04B10/58 , H04B10/5059
摘要： An optical transmitter with a feed-forward compensation is disclosed. The optical transmitter includes a first light source receiving a second electrical signal to convert into a first optical signal, an optical splitter dividing the first optical signal into a second optical signal and a third optical signal, an optical detector converting the third optical signal into a fourth electrical signal, a comparator receiving the fourth electrical signal and a third electrical signal, to produce a fifth electrical signal corresponding to a difference between the third electrical signal and the fourth electrical signal, a second light source converting the fifth electrical signal into a fourth optical signal, and an optical combiner for offsetting a distortion component of the fourth optical signal against the second optical signal to produce a fifth optical signal.
摘要翻译：公开了一种具有前馈补偿的光发射机。光发射机包括接收第二电信号以转换成第一光信号的第一光源，将第一光信号划分为第二光信号和第三光信号的光分路器，将第三光信号转换为第一光信号的光检测器第四电信号，比较器，接收第四电信号和第三电信号，以产生对应于第三电信号和第四电信号之间的差的第五电信号，第二光源将第五电信号转换成第四电信号光信号和光合成器，用于抵消第二光信号抵消第四光信号的失真分量，以产生第五光信号。

48. 发明授权

US07212691B2 Polarization-shaped duobinary optical transmission apparatus 失效
标题翻译：极化型二元光传输装置
公开(公告)号：US07212691B2
公开(公告)日：2007-05-01
申请号：US10719502
申请日：2003-11-21
申请人： Hoon Kim , Seong-Taek Hwang
发明人： Hoon Kim , Seong-Taek Hwang
IPC分类号： G02B6/26 , G02F1/01
CPC分类号： H04B10/5055 , H04B10/25137 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/532
摘要： A polarization-shaped duobinary optical transmission apparatus is disclosed. The apparatus includes a light source that generates light having a continuous wave, an optical intensity modulator that converts the light into an optical intensity signal based upon an input electric signal and a differential encoder that encodes the input electric signal. The apparatus also includes a delay element that delays the encoded electric signal and a polarization-shaped modulator that polarization-modulates the signal modulated optical intensity by using the delayed signal.
摘要翻译：公开了一种偏振型二元光传输装置。该装置包括产生具有连续波的光的光源，基于输入电信号将光转换为光强度信号的光强度调制器和对输入电信号进行编码的差分编码器。该装置还包括延迟编码电信号的延迟元件和通过使用延迟信号对信号调制光强度进行偏振调制的偏振调制器。

49. 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。

50. 发明申请

US20060216039A1 Polarization duobinary optical transmitter 失效
公开(公告)号：US20060216039A1
公开(公告)日：2006-09-28
申请号：US11371737
申请日：2006-03-09
申请人： Hoon Kim , Seong-Taek Hwang
发明人： Hoon Kim , Seong-Taek Hwang
IPC分类号： H04B10/04
CPC分类号： H04B10/5167 , H04B10/505 , H04B10/5053 , H04B10/5055 , H04B10/532
摘要： A polarization duobinary optical transmitter is disclosed. The transmitter includes a precoder for coding an electric signal and a light source for generating continuous light. The transmitter also includes a chirped-free modulator for generating an NRZ signal including first and second polarization light beams orthogonal to each other by modulating the light with the electric signal and a band-pass filter for limiting neighbor frequency bands between the first and second polarization light beams.

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