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31. 发明申请

US20060018667A1 Optical transmission apparatus using duobinary modulation 审中-公开
标题翻译：使用二进制调制的光传输设备
公开(公告)号：US20060018667A1
公开(公告)日：2006-01-26
申请号：US11005428
申请日：2004-12-06
申请人： Han-Lim Lee , Hoon Kim , Jae-Hoon Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Han-Lim Lee , Hoon Kim , Jae-Hoon Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5167
摘要： An optical transmission apparatus using duobinary modulation adapted to an optical communication system using dense wavelength division multiplexing (DWDM) is disclosed. The duo-binary optical transmission apparatus includes an electro-absorption modulated laser (EML) for performing a light intensity modulation operation based on an electrical data signal and producing a modulated optical signal, the EML having a light source for outputting carriers and a modulator for performing the light intensity modulation operation, a precoder for inputting an inverted signal of the electrical data signal and encoding it to an encoded signal, and a modulator for performing a phase modulation of the optical signal modulated by the EML and outputting a duo-binary optical signal, according to the encoded signal.
摘要翻译：公开了一种使用二进制调制的光传输装置，其适用于使用密集波分复用（DWDM）的光通信系统。双二进制光传输装置包括：电吸收调制激光器（EML），用于基于电数据信号执行光强度调制操作并产生调制光信号，所述EML具有用于输出载波的光源和用于执行光强调制操作，用于输入电数据信号的反相信号并将其编码为编码信号的预编码器，以及用于对由EML调制的光信号进行相位调制的调制器，并输出二进制二进制光信号，根据编码信号。

32. 发明申请

US20050100346A1 Optical transmitter for use in high-density wavelength division multiplexing (WDM) optical transmission system 审中-公开
标题翻译：用于高密度波分复用（WDM）光传输系统的光发射机
公开(公告)号：US20050100346A1
公开(公告)日：2005-05-12
申请号：US10864840
申请日：2004-06-09
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 , H04B10/556 , H04B10/588 , H04B10/61 , H04J14/00 , H04J14/02 , H04B10/04
CPC分类号： H04B10/5055 , H04B10/505 , H04B10/5051 , H04B10/5167 , H04J14/02
摘要： An optical transmitter for use in high-density WDM (Wavelength Division Multiplexing) optical transmission system generates an RZ-AMI (Return to Zero—Alternate Mark Inversion) signal which contains not only high reception sensitivity suitable for a high-density WDM optical transmission system, but also a narrow spectrum bandwidth. The transmitter includes a precoder for coding an input binary-data electric signal, a modulation drive amplifier for amplifying the coded signal, a light source for generating an optical carrier signal, a first optical modulator for modulating a phase of the optical carrier signal upon receiving the amplified signal from the amplifier, a second optical modulator for modulating an output signal of the first optical modulator into an RZ (Return to Zero) signal, and an optical filter for filtering an output signal of the second optical modulator to tailor the output signal for a predetermined bandwidth.
摘要翻译：用于高密度WDM（波分复用）光传输系统的光发射机产生不仅包含适合于高密度WDM光传输系统的高接收灵敏度的RZ-AMI（返回到零交替标记反转）信号，而且还有窄带宽带宽。发射机包括用于编码输入二进制数据电信号的预编码器，用于放大编码信号的调制驱动放大器，用于产生光载波信号的光源，用于在接收时调制光载波信号的相位的第一光调制器来自放大器的放大信号，用于将第一光调制器的输出信号调制成RZ（归零）信号的第二光调制器，以及用于对第二光调制器的输出信号进行滤波以调整输出信号的滤光器对于预定带宽。

33. 发明申请

US20070133995A1 Remote access unit and radio-over-fiber network using same 失效
标题翻译：远程访问单元和使用相同的光纤网络
公开(公告)号：US20070133995A1
公开(公告)日：2007-06-14
申请号：US11607700
申请日：2006-12-01
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Sang-Ho Kim , Yong-Gyoo Kim , Sung-Kee Kim , Han-Lim Lee
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Sang-Ho Kim , Yong-Gyoo Kim , Sung-Kee Kim , Han-Lim Lee
IPC分类号： H04B10/00
CPC分类号： H04B10/25758
摘要： A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.
摘要翻译：一种远程接入单元（RAU）装置，其通过至少一个光纤耦合到RoF网络的中心站（CS），并且所述RAU设备包括至少一个天线，包括：耦合到所述至少一个天线的第一和第二天线端口一个天线耦合到所述至少一个光纤的第一和第二光纤端口; 用于去耦第一双工方法的第一下行信号和通过第一光纤端口输入的第二双工方法的第二下行信号的第一耦合器; 输出从第一耦合器输入的第一下行信号到第一天线端口的循环器，并输出从第一天线端口输入到第二光纤端口的第一双工方式的第一上行信号; 以及第二耦合器，用于将从第一耦合器输入的第二下行信号输出到第二天线端口，并输出从第二天线端口输入到第二光纤端口的第二双工方法的第二上行信号。

34. 发明授权

US07224506B2 Single side band modulation device 失效
标题翻译：单边带调制装置
公开(公告)号：US07224506B2
公开(公告)日：2007-05-29
申请号：US11360076
申请日：2006-02-23
申请人： Sung-Kee Kim , Hoon Kim , Han-Lim Lee , Seong-Taek Hwang
发明人： Sung-Kee Kim , Hoon Kim , Han-Lim Lee , Seong-Taek Hwang
IPC分类号： G02F1/01
CPC分类号： G02F1/2255
摘要： A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two output arms. Terminals of the output arms are connected with one another.
摘要翻译：单边带调制装置包括第一马赫策德尔干涉仪和第二马赫曾德尔干涉仪。第一马赫策德尔干涉仪包括至少两个输出臂，第二马赫策德尔干涉仪包括至少两个输出臂。输出臂的端子彼此连接。

35. 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。

36. 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。

37. 发明授权

US08041222B2 Radio over fiber link apparatus of time division duplex scheme 有权
标题翻译：时分双工方式的光纤链路装置无线电
公开(公告)号：US08041222B2
公开(公告)日：2011-10-18
申请号：US11953911
申请日：2007-12-11
申请人： Han-Lim Lee , Hoon Kim , Seong-Taek Hwang
发明人： Han-Lim Lee , Hoon Kim , Seong-Taek Hwang
IPC分类号： H04B10/00
CPC分类号： H04J14/02 , H04B10/25758 , H04W88/085
摘要： A radio over fiber link apparatus for transmitting/receiving radio frequency up/downlink signals in a TDD mobile communication system. The radio over fiber link apparatus includes a center site for receiving radio frequency signals from an access point of the mobile communication system. The center site has a first electro-optic converter for converting the radio frequency signals into optical signals, bias control of the first electro-optic converter being performed based on the switching of TDD signals; and a remote for transmitting the radio frequency signals to a mobile communication terminal through an antenna. The remote site has a first photoelectric converter for converting the optical signals transmitted through an optical fiber from the center site into radio frequency signals.
摘要翻译：一种用于在TDD移动通信系统中发送/接收射频上行/下行链路信号的无线电光纤链路装置。光纤链路装置的无线电装置包括用于从移动通信系统的接入点接收射频信号的中心站点。中心站点具有用于将射频信号转换为光信号的第一电光转换器，基于TDD信号的切换执行第一电光转换器的偏置控制; 以及用于通过天线将射频信号发送到移动通信终端的遥控器。远程站点具有第一光电转换器，用于将通过光纤传输的光信号从中心位置转换成射频信号。

38. 发明授权

US07733825B2 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：US07733825B2
公开(公告)日：2010-06-08
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： H04W4/00 , H04L12/56
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。

39. 发明授权

US07450860B2 Apparatus and method for frequency-shift-keying optical transmission 失效
标题翻译：用于频移键控光传输的装置和方法
公开(公告)号：US07450860B2
公开(公告)日：2008-11-11
申请号：US11147705
申请日：2005-06-08
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： H04B10/04 , H04B10/12
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/5563
摘要： An optical transmission apparatus employing an FSK scheme is disclosed. The optical transmission apparatus includes a light generator arranged to generate a first tone signal having a first frequency and a second tone signal having a second frequency. The optical transmission apparatus also includes a light modulator including a second modulator for selectively outputting one of the first tone signal and the second tone signal input from the light generator according to input data.
摘要翻译：公开了一种采用FSK方案的光传输装置。光传输装置包括发生器，其被配置为产生具有第一频率的第一音调信号和具有第二频率的第二音调信号。光传输装置还包括光调制器，其包括第二调制器，用于根据输入数据选择性地输出从光发生器输入的第一音调信号和第二音调信号中的一个。

40. 发明申请

US20080145061A1 RADIO OVER FIBER LINK APPARATUS OF TIME DIVISION DUPLEX SCHEME 有权
标题翻译：无线电通过时分双工方案的光纤链路设备
公开(公告)号：US20080145061A1
公开(公告)日：2008-06-19
申请号：US11953911
申请日：2007-12-11
申请人： Han-Lim LEE , Hoon Kim , Seong-Taek Hwang
发明人： Han-Lim LEE , Hoon Kim , Seong-Taek Hwang
IPC分类号： H04B10/00 , H04J3/00
CPC分类号： H04J14/02 , H04B10/25758 , H04W88/085
摘要： A radio over fiber link apparatus for transmitting/receiving radio frequency up/downlink signals in a TDD mobile communication system. The radio over fiber link apparatus includes a center site for receiving radio frequency signals from an access point of the mobile communication system. The center site has a first electro-optic converter for converting the radio frequency signals into optical signals, bias control of the first electro-optic converter being performed based on the switching of TDD signals; and a remote for transmitting the radio frequency signals to a mobile communication terminal through an antenna. The remote site has a first photoelectric converter for converting the optical signals transmitted through an optical fiber from the center site into radio frequency signals.
摘要翻译：一种用于在TDD移动通信系统中发送/接收射频上行/下行链路信号的无线电光纤链路装置。光纤链路装置的无线电设备包括用于从移动通信系统的接入点接收射频信号的中心站点。中心站点具有用于将射频信号转换为光信号的第一电光转换器，基于TDD信号的切换执行第一电光转换器的偏置控制; 以及用于通过天线将射频信号发送到移动通信终端的遥控器。远程站点具有第一光电转换器，用于将通过光纤传输的光信号从中心位置转换成射频信号。

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