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1. 发明授权

US08555133B2 Rate matching apparatus and rate matching method thereof 有权
标题翻译：速率匹配装置及其速率匹配方法
公开(公告)号：US08555133B2
公开(公告)日：2013-10-08
申请号：US13020143
申请日：2011-02-03
申请人： Dae Soon Cho , EunTae Kim , Hee Sang Chung , JungSook Bae , Daeho Kim
发明人： Dae Soon Cho , EunTae Kim , Hee Sang Chung , JungSook Bae , Daeho Kim
IPC分类号： H03M13/00
CPC分类号： H04L1/0067 , H04L1/0071
摘要： Provided is a rate matching apparatus. The rate matching apparatus includes interleavers, dummy bit removers, a bit collector, a memory and a selector. The interleavers interleave code blocks, respectively. The dummy bit removers remove dummy bits of the interleaved code blocks, respectively. The bit collector collects code blocks with the dummy bits removed by bit units, and divides a collected data bit stream into systematic data and parity data. The memory stores the systematic data and the parity data in parallel. The selector outputs in parallel a plurality of data bits which are selected from the systematic data and parity data of the memory.
摘要翻译：提供了一种速率匹配装置。速率匹配装置包括交织器，伪位去除器，位收集器，存储器和选择器。交织器分别交替代码块。虚拟位去除器分别去除交织代码块的虚拟位。位收集器采集通过位单元去除虚拟位的代码块，并将收集的数据位流分成系统数据和奇偶校验数据。存储器并行地存储系统数据和奇偶校验数据。选择器并行输出从存储器的系统数据和奇偶校验数据中选择的多个数据位。

2. 发明申请

US20100158053A1 DERATE MATCHING METHOD AND APPARATUS 有权
标题翻译： DERATE匹配方法和设备
公开(公告)号：US20100158053A1
公开(公告)日：2010-06-24
申请号：US12544645
申请日：2009-08-20
申请人： Eun Tae KIM , Dae Soon CHO , Hee Sang CHUNG , Hyeong Jun PARK
发明人： Eun Tae KIM , Dae Soon CHO , Hee Sang CHUNG , Hyeong Jun PARK
IPC分类号： H04J3/04
CPC分类号： H04L1/0052 , H04L1/0067 , H04L1/0071
摘要： Provided are a method and apparatus for derate matching a rate-matched data. The received data is deinterleaved and derate matched at a time, without using input buffers or constructing input buffers in parallel. Thus, a total process time necessary for the deinterleaving process and the derate matching process is reduced, and the use of memories such as the input buffers is minimized.
摘要翻译：提供了一种降低匹配速率匹配数据的方法和装置。接收到的数据一次被解交错和降额匹配，而不使用输入缓冲器或并行构建输入缓冲器。因此，减少解交织处理和降额匹配处理所需的总处理时间，并且使诸如输入缓冲器的存储器的使用最小化。

3. 发明授权

US07440695B2 Optical transmission line monitoring system using a gain clamped optical amplifier 失效
标题翻译：光传输线路监控系统采用增益钳位光放大器
公开(公告)号：US07440695B2
公开(公告)日：2008-10-21
申请号：US10968308
申请日：2004-10-18
申请人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Kwangjoon Kim
发明人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Kwangjoon Kim
IPC分类号： H04B10/08
CPC分类号： H04B10/071 , G01M11/3145
摘要： There are provided a method and system for monitoring an optical transmission line. The system for monitoring the optical transmission line includes: an OTDR (optical time-domain reflectometer) transmitting a monitoring light to an optical transmission line, measuring a reflected light or backscattered light to monitor the optical transmission line; an optical amplification unit amplifying the monitoring light transmitted on the optical transmission line by using a gain clamped optical amplifier; and a filter unit removing a component having a wavelength outside a wavelength band of the monitoring light from a backward ASE (amplified spontaneous emission) generated by the optical amplification unit. Accordingly, it is possible to extend an optical transmission line monitoring distance of the OTDR. As a result, it is possible to prevent deterioration of the performance of the OTDR because of the backward ASE.
摘要翻译：提供了一种用于监测光传输线的方法和系统。用于监测光传输线路的系统包括：将光监测光传输到光传输线的OTDR（光时域反射计），测量反射光或反向散射光以监测光传输线; 光放大单元，通过使用增益钳位光放大器来放大在光传输线上传输的监视光; 以及滤光器单元，从由光放大单元产生的反向ASE（放大的自发发射）去除具有监测光的波长带外的波长的分量。因此，可以延长OTDR的光传输线监视距离。结果，可以防止由于向后的ASE而导致OTDR的性能的恶化。

4. 发明申请

US20050122570A1 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US20050122570A1
公开(公告)日：2005-06-09
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

5. 发明授权

US07230958B2 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US07230958B2
公开(公告)日：2007-06-12
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

6. 发明授权

US07158288B2 Long-wavelength-band gain-controlled optical amplifier 有权
标题翻译：长波长带增益控制光放大器
公开(公告)号：US07158288B2
公开(公告)日：2007-01-02
申请号：US10896347
申请日：2004-07-20
申请人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Hyun Jae Lee
发明人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Hyun Jae Lee
IPC分类号： H01S3/00
CPC分类号： H04B10/296 , H01S3/0064 , H01S3/067 , H01S3/0677 , H01S3/094023 , H01S3/0941 , H01S3/1608
摘要： A long-wavelength band (L-band) optical amplifier capable of maintaining a gain constant, thereby providing a stable optical output even when an optical power or a wavelength of a signal input thereto changes. The optical amplifier includes an amplifier which amplifies an input signal, and an amplified spontaneous emission (ASE) reflector which reflects backward ASE generated by the amplifier so that the backward ASE is fed back to the amplifier.
摘要翻译：即使当光功率或输入信号的波长发生变化时，能够保持增益恒定的长波长带（L波段）光放大器，从而提供稳定的光输出。光放大器包括放大输入信号的放大器和放大的自发发射（ASE）反射器，其反射由放大器产生的反向ASE，以使反向ASE反馈到放大器。

7. 发明授权

US06559989B1 Optical packet header processing apparatus for optical packet switch 有权
标题翻译：用于光分组交换的光分组报头处理装置
公开(公告)号：US06559989B1
公开(公告)日：2003-05-06
申请号：US09499934
申请日：2000-02-08
申请人： Kwang Joon Kim , Ji Wook Youn , Hee Sang Chung , Sung Un Lee , Jong Hyun Lee
发明人： Kwang Joon Kim , Ji Wook Youn , Hee Sang Chung , Sung Un Lee , Jong Hyun Lee
IPC分类号： H04J1408
CPC分类号： H04Q11/0005 , H04J14/08 , H04Q2011/0041
摘要： An optical packet header processing apparatus for processing a header of an optical packet expressing an address of a destination node to control a switching operation of an optical packet switch. The optical packet header processing apparatus comprises a beam splitter for splitting the optical packet header into a predetermined number of optical packet header elements, and a plurality of time interval detectors. Each of the time interval detectors receives a corresponding one of the optical packet header elements from the beam splitter and outputs a detect optical pulse if a pair of optical pulses having a predetermined time interval therebetween are present in the received optical packet header element. A plurality of optical pulse detectors are adapted to convert the detect optical pulses from the time interval detectors into electrical signals and transfer the converted electrical signals to the optical packet switch, respectively. Therefore, the optical packet switch determines the destination node in response to the electrical signals from the optical pulse detectors and outputs the optical packet to an output port corresponding to the determined destination node.
摘要翻译：一种光分组报头处理装置，用于处理表示目的地节点的地址的光分组的报头以控制光分组交换机的切换操作。光分组报头处理装置包括分光器，用于将光分组报头分割成预定数量的光分组报头元素，以及多个时间间隔检测器。每个时间间隔检测器从分束器接收相应的一个光分组报头元件，并且如果在接收的光分组报头元件中存在其间具有预定时间间隔的一对光脉冲，则输出检测光脉冲。多个光脉冲检测器适于将来自时间间隔检测器的检测光脉冲转换为电信号，并将转换后的电信号分别传送到光分组交换机。因此，光分组交换机响应于来自光脉冲检测器的电信号来确定目的地节点，并将光分组输出到与确定的目的地节点对应的输出端口。

8. 发明授权

US06529319B2 Automatic gain-controlled optical fiber amplifier 失效
标题翻译：自动增益控制光纤放大器
公开(公告)号：US06529319B2
公开(公告)日：2003-03-04
申请号：US09827211
申请日：2001-04-06
申请人： Ji-Wook Youn , Kwang-Joon Kim , Hee-Sang Chung , Jong-Hyun Lee
发明人： Ji-Wook Youn , Kwang-Joon Kim , Hee-Sang Chung , Jong-Hyun Lee
IPC分类号： H04B1012
CPC分类号： H01S3/06754 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S2301/04
摘要： The present invention is to provide an automatic gain-controlled optical fiber amplifier, comprising: a first optical branch for branching a portion of an optical signal inputted into the optical fiber amplifier; a second optical branch for branching a portion of an optical signal outputted from the optical fiber amplifier; an optical distributor for receiving the optical signal of an input side branched partially by the first optical branch and for outputting it separately; a first wavelength selector for receiving the optical signal of a one side distributed by the optical distributor and for selecting a predetermined wavelength optical signal; a second wavelength selector for receiving the optical signal of an output side branched partially by the second optical branch and for selecting the predetermined wavelength optical signal; a signal processor for receiving the optical signal of a second side distributed by the optical distributor and the predetermined wavelength optical signal selected by the first and second optical wavelength selector and for measuring a total power of an input signal and a number of input channels; and a controller for generating a control signal according to the total power of the input signal and the number of input channels measured by the signal processor.
摘要翻译：本发明提供一种自动增益控制光纤放大器，包括：第一光分路，用于分支输入到光纤放大器的光信号的一部分; 第二光分支，用于分支从所述光纤放大器输出的光信号的一部分; 光分配器，用于接收由第一光分支部分地分支的输入侧的光信号，并分别输出; 第一波长选择器，用于接收由光分配器分配的一侧的光信号并用于选择预定波长的光信号; 第二波长选择器，用于接收由第二光分支部分分支并用于选择预定波长光信号的输出侧的光信号; 信号处理器，用于接收由光分配器分配的第二侧的光信号和由第一和第二光波长选择器选择的预定波长光信号，并用于测量输入信号和多个输入通道的总功率; 以及控制器，用于根据输入信号的总功率和由信号处理器测量的输入通道的数量产生控制信号。

9. 发明授权

US07038841B2 Fiber amplifier and control method thereof 失效
标题翻译：光纤放大器及其控制方法
公开(公告)号：US07038841B2
公开(公告)日：2006-05-02
申请号：US10696145
申请日：2003-10-28
申请人： Sun-Hyok Chang , Hee-Sang Chung , Jin-Soo Han , Seung-Kwan Kim , Won-Kyoung Lee , Moo-Jung Chu
发明人： Sun-Hyok Chang , Hee-Sang Chung , Jin-Soo Han , Seung-Kwan Kim , Won-Kyoung Lee , Moo-Jung Chu
IPC分类号： H04B10/12 , H01S3/00
CPC分类号： H04B10/296 , H01S3/06758 , H01S3/0941 , H01S3/10015 , H01S3/10069 , H01S3/1301 , H01S3/1305 , H01S3/1608 , H01S3/2375 , H01S3/302 , H01S2301/04 , H04B2210/003
摘要： A method for realizing, in a fiber amplifier with three stages of amplifiers, automatic gain control in which a constant gain is obtained when channels are varied, and automatic level control in which a constant output per channel is obtained when a light power is varied because of variations in span loss. A light power or another light power of a specific wavelength is monitored to determine when variations in these light powers take place, current values of pump laser diodes appropriate for an input is read from a lookup table, and pump laser diodes are driven. During this operation, a pump power of the first stage amplifier is constantly maintained, and those of the second or third stage amplifier are controlled.
摘要翻译：一种用于在具有三级放大器的光纤放大器中实现自动增益控制的方法，其中当通道变化时获得恒定的增益，以及当光功率变化时获得每通道的恒定输出的自动电平控制，因为的跨度损失的变化。监测特定波长的光功率或其他光功率，以确定何时发生这些光功率的变化，从查找表中读取适合于输入的泵激光二极管的电流值，驱动泵激光二极管。在此操作期间，始终保持第一级放大器的泵浦功率，并且控制第二级或第三级放大器的泵浦功率。

10. 发明申请

US20160242211A1 RANDOM ACCESS METHOD FOR MACHINE TYPE COMMUNICATION TERMINAL 审中-公开
标题翻译：机器类型通信终端的随机访问方法
公开(公告)号：US20160242211A1
公开(公告)日：2016-08-18
申请号：US14620361
申请日：2015-02-12
申请人： Hee Sang CHUNG , Il Gyu KIM
发明人： Hee Sang CHUNG , Il Gyu KIM
IPC分类号： H04W74/08 , H04W72/04 , H04L5/00 , H04J11/00 , H04W4/00
CPC分类号： H04W74/0833 , H04J11/0073 , H04J2011/0096 , H04L1/00 , H04L5/0048 , H04L5/0069 , H04L5/0082 , H04L5/14 , H04W4/70
摘要： Disclosed is a random access method for a machine type communication (MTC) terminal. The random access method performed by a terminal includes performing a cell search, determining a radio environment based on time taken to perform the cell search, and performing different random access procedures depending on the determined radio environment. Accordingly, coverage of the MTC terminal that is in a poor radio environment may be enhanced, thereby performing normal communication with a base station.
摘要翻译：公开了一种用于机器型通信（MTC）终端的随机接入方法。由终端执行的随机接入方法包括执行小区搜索，基于执行小区搜索所花费的时间来确定无线电环境，以及根据确定的无线电环境执行不同的随机接入过程。因此，可以增强处于恶劣的无线环境中的MTC终端的覆盖，从而与基站进行正常的通信。

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