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1. 发明授权

US06999653B2 4-port wavelength selective router 失效
公开(公告)号：US06999653B2
公开(公告)日：2006-02-14
申请号：US09912358
申请日：2001-07-26
申请人： Chang Hee Lee , Hyun Deok Kim , Tae Won Oh , Shin Jeong Hun , Cho Yun Hee
发明人： Chang Hee Lee , Hyun Deok Kim , Tae Won Oh , Shin Jeong Hun , Cho Yun Hee
IPC分类号： G02B6/28
CPC分类号： G02B6/29361 , G02B6/2746 , G02B6/29383 , G02B6/29386 , G02B6/34 , H04B10/2504 , H04J14/0206 , H04J14/0208 , H04J14/0212 , H04J14/0213 , H04Q11/0005 , H04Q2011/0024 , H04Q2011/0032 , H04Q2011/0035
摘要： The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections generated in the bidirectional transmission systems and networks.

2. 发明申请

US20050163503A1 Methods and apparatuses to provide a wavelength division-multiplexing passive optical network based on wavelength-locked wavelength-division-multiplexed ligh sources 有权
标题翻译：提供基于波长锁相波分复用光源的波分复用无源光网络的方法和装置
公开(公告)号：US20050163503A1
公开(公告)日：2005-07-28
申请号：US10502166
申请日：2003-01-21
申请人： Chang-Hee Lee , Kwang-Uk Chu , Tae-Won Oh
发明人： Chang-Hee Lee , Kwang-Uk Chu , Tae-Won Oh
IPC分类号： H04L12/44 , H04B10/00 , H04B10/07 , H04B10/27 , H04B10/272 , H04B10/29 , H04J14/00 , H04J14/02 , H04L12/28 , H04B10/08
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0297
摘要： Various methods, systems, and apparatuses in which a wavelength-division-multiplexing passive-optical-network includes a first broadband light source and a second broadband light source. The first broadband light source supplies an optical signal containing a first band of wavelengths to a first plurality of optical transmitters. The second broadband light source supplies an optical signal containing a second band of wavelengths to a second plurality of optical transmitters. A fiber is used for bi-directional transmission of optical signals in at least two different wavelength bands.
摘要翻译：波分复用无源光网络包括第一宽带光源和第二宽带光源的各种方法，系统和装置。第一宽带光源将含有第一波长带的光信号提供给第一多个光发射机。第二宽带光源将包含第二波长带的光信号提供给第二多个光发射机。光纤用于在至少两个不同波长带中的光信号的双向传输。

3. 发明授权

US06411660B1 Device for reducing lock-up time of Frequency synthesizer 失效
标题翻译：减少频率合成器锁定时间的装置
公开(公告)号：US06411660B1
公开(公告)日：2002-06-25
申请号：US09080518
申请日：1998-05-18
申请人： Tae-won Oh
发明人： Tae-won Oh
IPC分类号： H03D318
CPC分类号： H03L7/23 , H03J5/0272 , H03L7/10 , H04B1/40 , H04B1/44
摘要： A device for reducing a lock-up time in a digital cordless telephone. The telephone includes a first frequency synthesizer for generating a reference frequency, a receiver having a first mixer for mixing the reference frequency with an input frequency to generate a first intermediate frequency and a second mixer to generate a second intermediate frequency, and a transmitter having a third mixer to generate a transmission frequency. The device includes: a band switching controller for receiving an inverse channel selection signal; and a second frequency synthesizer for generating third and fourth intermediate frequencies to the second and third mixers, respectively, according to a channel selection signal for setting transmission and reception modes. The second frequency synthesizer includes: a voltage controlled oscillator for generating a frequency according to a charge pump voltage applied at an input of the oscillator; a loop filter for shaping the charge pump voltage being applied to the input of the voltage controlled oscillator; and a phase locked loop for comparing the reference frequency with a frequency output from the voltage controlled oscillator to generate a voltage according to a phase difference therebetween to the input of the voltage controlled oscillator via the loop filter. The band switching controller maintains an input voltage of the voltage controlled oscillator upon receiving the inverse channel selection signal.
摘要翻译：一种减少数字无绳电话锁定时间的设备。该电话包括用于产生参考频率的第一频率合成器，具有用于混合参考频率与输入频率以产生第一中频的第一混频器的接收机和用于产生第二中频的第二混频器，以及具有第三混频器产生传输频率。该装置包括：频带切换控制器，用于接收反向信道选择信号; 以及第二频率合成器，用于根据用于设置发送和接收模式的信道选择信号分别向第二和第三混频器产生第三和第四中频。第二频率合成器包括：压控振荡器，用于根据在振荡器的输入端施加的电荷泵电压产生频率; 用于对施加到压控振荡器的输入端的电荷泵电压进行整形的环路滤波器; 以及锁相环，用于将参考频率与从压控振荡器输出的频率进行比较，以通过环路滤波器将电压根据它们之间的相位差产生到压控振荡器的输入端。频带切换控制器在接收到反向信道选择信号时保持压控振荡器的输入电压。

4. 发明授权

US08861963B2 Shared high-intensity broadband light source for a wavelength-division multiple access passive optical network 有权
标题翻译：共享高强度宽带光源，用于波分多址无源光网络
公开(公告)号：US08861963B2
公开(公告)日：2014-10-14
申请号：US10559013
申请日：2004-06-01
申请人： Chang-Hee Lee , Tae Won Oh , Bong Soo Kim
发明人： Chang-Hee Lee , Tae Won Oh , Bong Soo Kim
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/50 , H04J14/06
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0226 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0291 , H04J14/0297 , H04J14/06
摘要： An optical power distributor is coupled to a high-intensity broadband light source to distribute in a shared manner an output of the high-intensity broadband light source to a plurality of optical line terminals. A depolarizer is also described having an input coupled to an output of a polarized broadband light source. A first integrated module has optical transmitters and an optical wavelength router for a first band. A second integrated module has optical receivers and an optical wavelength router for a second band.
摘要翻译：光功率分配器耦合到高强度宽带光源，以共享的方式将高强度宽带光源的输出分配到多个光线路终端。还描述了去偏振器，其具有耦合到偏振宽带光源的输出的输入。第一集成模块具有用于第一频带的光发射机和光波长路由器。第二集成模块具有用于第二频带的光接收器和光波长路由器。

5. 发明授权

US07171123B2 Method for decreasing and compensating the transmission loss at a wavelength-division-multiplexed passive optical network and an apparatus therefor 有权
标题翻译：用于减少和补偿在波分复用无源光网络上的传输损耗的方法及其装置
公开(公告)号：US07171123B2
公开(公告)日：2007-01-30
申请号：US10353745
申请日：2003-01-28
申请人： Chang Hee Lee , Tae Won Oh , Kwang Uk Chu
发明人： Chang Hee Lee , Tae Won Oh , Kwang Uk Chu
IPC分类号： H04J14/02
CPC分类号： H04J14/0297 , H04B10/032 , H04B10/2503 , H04B10/27 , H04B10/272 , H04B10/2939 , H04B10/2972 , H04J14/02 , H04J14/0282
摘要： The present invention relates to a wavelength-division multiplexed passive optical network. In particular, it relates to a technology for minimizing the optical loss at a wavelength-division multiplexed passive optical network based on wavelength-locked light source Thereby it improves the transmission quality and increases the transmission distance.A 4-port optical path setting device of the present invention increases the amount of light injected into an optical transmitter and thereby improves the wavelength-locking characteristic of a light source. In addition, it can decrease the optical transmission loss in an optical transmission path, and by an optical amplifier being inserted therein; it can also compensate the optical loss in an optical transmission path.In the present invention, a 4-port optical path setting device having the characteristics described above and a method for fault recovery without an additional optical loss are presented.
摘要翻译：波分复用无源光网络技术领域本发明涉及一种波分复用无源光网络。具体地说，涉及一种基于波长锁定光源的波分复用无源光网络的光损耗最小化的技术，从而提高了传输质量并提高了传输距离。本发明的4端口光路设定装置增加了光发射机的光量，从而提高了光源的波长锁定特性。另外，可以减少光传输路径中的光传输损耗，并且其中插入光放大器; 它还可以补偿光传输路径中的光损耗。在本发明中，提出了具有上述特征的4端口光路设定装置和没有附加光损耗的故障恢复方法。

6. 发明授权

US07646978B2 Methods and apparatuses to provide a wavelength division-multiplexing passive optical network based on wavelength-locked wavelength-division-multiplexed light sources 有权
标题翻译：提供基于波长锁相波分复用光源的波分复用无源光网络的方法和装置
公开(公告)号：US07646978B2
公开(公告)日：2010-01-12
申请号：US10502166
申请日：2003-01-21
申请人： Chang-Hee Lee , Kwang-Uk Chu , Tae-Won Oh
发明人： Chang-Hee Lee , Kwang-Uk Chu , Tae-Won Oh
IPC分类号： H04B10/20 , H04B10/00 , H04J14/08
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0297
摘要： Various methods, systems, and apparatuses in which a wavelength-division-multiplexing passive-optical-network includes a first broadband light source and a second broadband light source. The first broadband light source supplies an optical signal containing a first band of wavelengths to a first plurality of optical transmitters. The second broadband light source supplies an optical signal containing a second band of wavelengths to a second plurality of optical transmitters. A fiber is used for bi-directional transmission of optical signals in at least two different wavelength bands.
摘要翻译：波分复用无源光网络包括第一宽带光源和第二宽带光源的各种方法，系统和装置。第一宽带光源将含有第一波长带的光信号提供给第一多个光发射机。第二宽带光源将包含第二波长带的光信号提供给第二多个光发射机。光纤用于在至少两个不同波长带中的光信号的双向传输。

7. 发明授权

US06952308B2 Multi-stage bidirectional optical amplifier 失效
标题翻译：多级双向光放大器
公开(公告)号：US06952308B2
公开(公告)日：2005-10-04
申请号：US09912548
申请日：2001-07-26
申请人： Chang Hee Lee , Hyun Deok Kim , Tae Won Oh , Shin Jeong Hun , Cho Yun Hee
发明人： Chang Hee Lee , Hyun Deok Kim , Tae Won Oh , Shin Jeong Hun , Cho Yun Hee
IPC分类号： G02B6/28 , H04B10/25 , H01S3/00
CPC分类号： H04B10/2504
摘要： A multi-stage bidirectional optical amplifier amplifies counter-propagating signals at the same time, and includes two single-stage bidirectional optical amplifiers, two multiple reflection suppression means, and a mid-stage component.
摘要翻译：多级双向光放大器同时放大反向传播信号，并且包括两个单级双向光放大器，两个多反射抑制装置和中级元件。

8. 发明授权

US06832017B2 Bidirectional add/drop multiplexer and bidirectional add/drop amplifier module for band-split bidirectional networks 失效
标题翻译：用于频带分离双向网络的双向分插复用器和双向放大放大器模块
公开(公告)号：US06832017B2
公开(公告)日：2004-12-14
申请号：US09767702
申请日：2001-01-24
申请人： Chang Hee Lee , Hyun Deok Kim , Jeong Hun Shin , Tae Won Oh , Yun Hee Cho
发明人： Chang Hee Lee , Hyun Deok Kim , Jeong Hun Shin , Tae Won Oh , Yun Hee Cho
IPC分类号： G02B628
CPC分类号： H04J14/0216 , H04J14/0208
摘要： The present invention relates to a bidirectional add/drop multiplexer (BADM) and a bidirectional add/drop amplifier (BADA) module. The present invention includes an N×N arrayed waveguide grating router (AWGR), two optical circulators, two wavelength selective couplers, two optical isolators, and a mid-stage device. The mid-stage device comprises a means for compensating the chromatic dispersion of the optical fibers, a means for flattening the spectral response of the optical amplifiers, a means for suppressing the accumulation of the ASE noise or a combination of these means.
摘要翻译：本发明涉及一种双向分插复用器（BADM）和双向放大放大器（BADA）模块。本发明包括一个NxN阵列波导光栅路由器（AWGR），两个光循环器，两个波长选择耦合器光隔离器和中级装置。中间级装置包括用于补偿光纤的色散的装置，用于平坦化光放大器的光谱响应的装置，用于抑制ASE噪声的累积的装置或这些装置的组合。

9. 发明授权

US06529656B2 Bi-Directional add/drop multiplexer and bidirectional add/drop amplifier module for wavelength interleaved bidirectional networks 失效
标题翻译：用于波长交错双向网络的双向分插复用器和双向放大放大器模块
公开(公告)号：US06529656B2
公开(公告)日：2003-03-04
申请号：US09767917
申请日：2001-01-24
申请人： Chang Hee Lee , Hyun Deok Kim , Jeong Hun Shin , Tae Won Oh , Yun Hee Cho
发明人： Chang Hee Lee , Hyun Deok Kim , Jeong Hun Shin , Tae Won Oh , Yun Hee Cho
IPC分类号： G02B628
CPC分类号： G02B6/12019 , H04B10/2941 , H04B10/2972 , H04B2210/256 , H04J14/0208 , H04J14/0216
摘要： The present invention discloses a bi-directional add/drop multiplexer (BADM) and a bi-directional add/drop amplifier (BADA) module which add/drop wavelength-interleaved counter-propagating signals. The mid-stage device in the BADM and the BADA module is shared by the counter-propagating signals.
摘要翻译：本发明公开了一种双向分插复用器（BADM）和双向放大放大器（BADA）模块，它们对波长交织的反向传播信号进行分插。 BADM和BADA模块中的中级设备由反向传播信号共享。

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