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41. 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。

42. 发明申请

US20070140699A1 Radio-over-fiber link device using multi-mode fiber and method of setting signal band thereof 审中-公开
标题翻译：使用多模光纤的无线光纤链路装置及其设置信号频带的方法
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。

43. 发明申请

US20070024949A1 SINGLE SIDE BAND MODULATION DEVICE 失效
标题翻译：单边带调制装置
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。

44. 发明申请

US20060083519A1 Chirped RZ-AMI optical transmitter 有权
标题翻译：啁啾RZ-AMI光发射机
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。

45. 发明申请

US20050053382A1 Duobinary optical transmitter 失效
标题翻译：双色光发射机
公开(公告)号：US20050053382A1
公开(公告)日：2005-03-10
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： H04B10/40 , H04B10/25 , H04B10/50 , H04B10/516 , H04B10/548 , H04B10/58 , H04B10/60 , H04B10/61 , H04B10/00
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。

46. 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。

47. 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。

48. 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。

49. 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。

50. 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。

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