公开(公告)号：US20070022460A1

公开(公告)日：2007-01-25

申请号：US11395806

申请日：2006-03-31

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

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

IPC分类号： H04N7/173

CPC分类号： H04L5/26 ,  H04B10/25758 ,  H04W16/26

摘要： Disclosed is a remote access unit for transmitting and receiving upstream and downstream data in which channels having different transmission scheme are multiplexed, and an optical network for bi-directional wireless communication using same. The remote access unit includes an antenna for receiving the downstream data and wirelessly transmitting same and for receiving the upstream data and providing same to the remote access unit, a switch for outputting downstream time division channels of the downstream data to the antenna and for receiving upstream time division channels of the upstream data from the antenna, and a controller for controlling the switch in order to prevent the upstream and downstream time division channels from overlapping.

摘要翻译： 公开了一种用于发送和接收上行和下行数据的远程访问单元，其中具有不同传输方案的信道被复用，以及用于使用其的双向无线通信的光网络。 远程接入单元包括：天线，用于接收下行数据并进行无线发送，并用于接收上行数据并将其提供给远程接入单元;开关，用于向下游天线输出下游数据的下行时分信道​​，并用于接收上游 来自天线的上行数据的时分信道，以及用于控制交换机的控制器，以防止上游和下游时分信道重叠。

公开(公告)号：US20050207759A1

公开(公告)日：2005-09-22

申请号：US10988766

申请日：2004-11-15

申请人： Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： G02F1/01 ,  H04B10/516 ,  H04B10/524 ,  H04B10/532 ,  H04B10/556 ,  H04B10/61 ,  H04B10/04

CPC分类号： H04B10/5161 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5167 ,  H04B10/532

摘要： An optical duo-binary transmission apparatus using a duo-binary modulation method is disclosed. The optical duo-binary transmission apparatus using a polarization modulator includes a precoder for coding an inputted binary data signal; a low-pass filter for converting the coded binary data signal into a three-level signal by restricting a bandwidth of the coded binary data signal; a light source for generating light; a polarization modulator for modulating a polarization of the light outputted from the light source according to the three-level signal; and a polarizer for transmitting only an optical signal having a predetermined directionality from among polarization-modulated optical signals.

摘要翻译： 公开了一种使用二进制二进制调制方法的光二元传输装置。 使用偏振调制器的光二元传输装置包括用于对输入的二进制数据信号进行编码的预编码器; 低通滤波器，用于通过限制编码的二进制数据信号的带宽将编码的二进制数据信号转换成三电平信号; 用于产生光的光源; 偏振调制器，用于根据三电平信号调制从光源输出的光的偏振; 以及偏振器，用于从偏振调制光信号中仅发送具有预定方向性的光信号。

公开(公告)号：US20050116841A1

公开(公告)日：2005-06-02

申请号：US10858919

申请日：2004-06-02

申请人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： H04J3/00 ,  G11B20/10 ,  H03M5/02 ,  H04B10/2507 ,  H04B10/2513 ,  H04B10/516 ,  H04B10/524 ,  H04B10/54 ,  H04B10/588 ,  H04B10/61

CPC分类号： H03M5/02 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5167

摘要： An optical duo-binary transmission apparatus using an optical duo-binary transmission method is disclosed. The apparatus includes a duo-binary encoder that performs parallel processing. The duo-binary encoder includes a level change detection unit for detecting that levels of data input signals of N channels input at an nth input of channels change from 0 to 1, or from 1 to 0; a judgment unit for judging whether a number of level changes detected by the level change detection unit is odd or even; and a toggle unit for toggling an output signal of the judgment unit when the number of level change is odd. The encoder also includes an intermediate signal generation unit for determining whether phases of other channels are shifted or not, according to an data input signal on the basis of a predetermined channel of the N channels; and a phase division unit for dividing data into a first data group having non-shifted phases and a second data group which require a phase shift, according to an output signal of the intermediate signal generation unit and the data input signal, and outputting the divided first and second data groups.

摘要翻译： 公开了一种使用光二元传输方式的光二元传输装置。 该装置包括执行并行处理的二进制编码器。 二进制编码器包括电平变化检测单元，用于检测在信道的第n个输入端输入的N个信道的数据输入信号的电平从0变化到1，或从1变为0; 判断单元，用于判断由电平变化检测单元检测到的电平变化的数量是奇数还是偶数; 以及切换单元，用于当电平变化次数为奇数时切换判断单元的输出信号。 编码器还包括中间信号产生单元，用于根据N个信道的预定信道根据数据输入信号来确定其它信道的相位是否移位; 以及相位分割单元，根据中间信号生成单元的输出信号和数据输入信号，将数据分割为具有非移相的第一数据组和需要相移的第二数据组，并输出分割 第一和第二数据组。

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。

公开(公告)号：US07289048B2

公开(公告)日：2007-10-30

申请号：US10806548

申请日：2004-03-23

申请人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： H03M1/00

CPC分类号： H04B10/505 ,  H04B10/5055 ,  H04B10/5167

摘要： A duo-binary encoder performs a parallel processing and an optical duo-binary transmission apparatus using the encoder to enhance transmission capability. The duo-binary encoder has a judgment unit for judging whether an odd number or even number of ‘0’s exists in data input signals of N channels, a toggle unit for toggling an output signal of the judgment unit when a number of ‘0’s is even, an intermediate signal generation unit for determining whether phases of other channels are shifted or not, according to an data input signal on the basis of a predetermined channel of the N channels. A phase division unit divides data into a first data group having non-shifted phases and a second group of data that require a phase shift, according to an output signal of the intermediate signal generation unit and the data input signal. The divided first and second data groups are then output.

摘要翻译： 二进制编码器使用编码器执行并行处理和光二进制传输装置，以增强传输能力。 二进制编码器具有判断单元，用于判断N个通道的数据输入信号中是否存在奇数或偶数的“0”，当“0”为偶数时，用于切换判断单元的输出信号的触发单元 根据N个信道的预定信道，根据数据输入信号，确定是否移位了其他信道的相位的中间信号生成部。 相位分割单元根据中间信号产生单元的输出信号和数据输入信号将数据划分成具有非移相的第一数据组和需要相移的第二组数据。 然后输出分割的第一和第二数据组。

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。

公开(公告)号：US20070140699A1

公开(公告)日：2007-06-21

申请号：US11639965

申请日：2006-12-15

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： H04B10/00

CPC分类号： H04B10/2581 ,  H04B10/25752

摘要： Disclosed is a method of setting a signal band of a Radio-Over-Fiber (ROF) link device using a Multi-Mode Fiber (MMF), which includes the steps of dividing a preset band of the entire frequency band of the MMF as a plurality of frequency slots to preset a transmission band in a transmitting side device, sequentially sweeping a plurality of reference frequencies predetermined for each transmission band of the plurality of the frequency slots to only the bands of the corresponding frequency slots, identifying the possibility of signal transmission for each of the plurality of frequency slots in accordance with transmission quality information transmitted from a receiving side to set a transmission signal band, detecting the quality of a signal received for the corresponding frequency slot when sweeping a frequency for each of the plurality of frequency slots in the receiving side device, and transmitting the transmission quality information to the transmitting side device in accordance with the detected signal quality.

摘要翻译： 公开了使用多模光纤（MMF）设置无线光纤（ROF）链路装置的信号频带的方法，其包括以下步骤：将MMF的整个频带的预置频带划分为 多个频率时隙，以在发送侧设备中预设传输频带，将预定的多个频率段中的每个传输频带的多个参考频率顺序地扫描到相应频率的频带，以识别信号传输的可能性 根据从接收侧发送的传输质量信息来设置发送信号频带的多个频率间隙中的每一个，当扫描多个频率槽中的每一个频率的频率时，检测对于相应的时隙接收的信号的质量 在接收侧设备中，并根据w向发送侧设备发送传输质量信息 检测信号质量。

公开(公告)号：US20070024949A1

公开(公告)日：2007-02-01

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。

公开(公告)号：US20060083519A1

公开(公告)日：2006-04-20

申请号：US11240072

申请日：2005-09-30

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： H04B10/04

CPC分类号： H04B10/5167 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5162 ,  H04B2210/254

摘要： A chirped RZ-AMI optical transmitter includes a first logic gate for receiving a first signal obtained by pre-coding binary data and a second signal having a waveform obtained by inverting and delaying the first signal, and outputting a third signal obtained by logically operating on the first and second signals. A second logic gate receives a fourth signal having a waveform obtained by inverting the first signal, and a fifth signal having a waveform obtained by delaying the first signal. The second logic gate outputs a sixth signal obtained by logically operating on the fourth and fifth signals. A Mach-Zehnder Modulator (MZM) modulates an input light according to the third and sixth signals and outputs an RZ-AMI optical signal.

摘要翻译： 啁啾RZ-AMI光发射机包括：第一逻辑门，用于接收通过预编码二进制数据获得的第一信号;以及第二信号，具有通过反相和延迟第一信号获得的波形，并输出通过逻辑运算获得的第三信号 第一和第二信号。 第二逻辑门接收具有通过反转第一信号而获得的波形的第四信号，以及具有通过延迟第一信号而获得的波形的第五信号。 第二逻辑门输出通过对第四和第五信号进行逻辑运算获得的第六信号。 马赫曾德调制器（MZM）根据第三和第六信号调制输入光，并输出RZ-AMI光信号。

公开(公告)号：US07630694B2

公开(公告)日：2009-12-08

申请号：US11395806

申请日：2006-03-31

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

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

IPC分类号： H01Q11/12

CPC分类号： H04L5/26 ,  H04B10/25758 ,  H04W16/26

摘要： Disclosed is a remote access unit for transmitting and receiving upstream and downstream data in which channels having different transmission scheme are multiplexed, and an optical network for bi-directional wireless communication using same. The remote access unit includes an antenna for receiving the downstream data and wirelessly transmitting same and for receiving the upstream data and providing same to the remote access unit, a switch for outputting downstream time division channels of the downstream data to the antenna and for receiving upstream time division channels of the upstream data from the antenna, and a controller for controlling the switch in order to prevent the upstream and downstream time division channels from overlapping.

摘要翻译： 公开了一种用于发送和接收上行和下行数据的远程访问单元，其中具有不同传输方案的信道被复用，以及用于使用其的双向无线通信的光网络。 远程接入单元包括：天线，用于接收下行数据并进行无线发送，并用于接收上行数据并将其提供给远程接入单元;开关，用于向下游天线输出下游数据的下行时分信道​​，并用于接收上游 来自天线的上行数据的时分信道，以及用于控制交换机的控制器，以防止上游和下游时分信道重叠。