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公开(公告)号：KR1020150051870A
公开(公告)日：2015-05-13
申请号：KR1020140137895
申请日：2014-10-13
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0227 , G02B6/2861 , H04B10/0773
Abstract: 튜너블디바이스의출력파장의변화를광 세기의변화로변환하는광 필터를이용하여파장채널튜닝시간을측정하는방법및 그시스템이개시된다. 본발명의일 면에따른파장채널튜닝시간측정시스템은파장튜닝가능한튜너블디바이스의파장변화를광 출력세기변화로변환시켜출력하는광 필터셋; 상기광 필터셋에서출력되는광 출력세기변화를전기적신호로변환하는광전변환기; 및상기튜너블디바이스에인가되는파장가변명령을생성하고, 상기파장가변명령과상기광전변환기에서출력되는전기적신호를이용하여상기튜너블디바이스의파장채널튜닝시간을연산하는제어부를포함한다.
Abstract translation: 公开了一种通过使用将可调谐装置的输出波长的变化转换为光强度变化的滤光器来测量波长信道调谐时间的方法及其系统。 用于测量波长信道调谐时间的系统包括：被配置为将光可调器件中的波长变化转换成光输出强度变化的滤光器组; 光电转换器，其被配置为将由所述滤光器组输出的光输出强度变化转换为电信号; 以及控制器，被配置为产生施加到可调谐器件的波长变化指令，以便通过使用波长改变命令和由光学电转换器输出的电信号来计算可调谐器件的波长通道调谐时间。
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公开(公告)号：KR1020130068376A
公开(公告)日：2013-06-26
申请号：KR1020110135487
申请日：2011-12-15
Applicant: 한국전자통신연구원
IPC: H04L29/10
CPC classification number: H04L29/10
Abstract: PURPOSE: A channel concentrating method for interlinking a physical layer device and a link layer device is provided to improve a problem that low speed channels is not linked with high speed channels. CONSTITUTION: A new payload is generated by combining a payload of a physical layer device(1100) and payload control channel information and is transmitted to a payload field of a link layer device. The payload control channel information received in the physical layer device is transformed through a channel concentrating unit within a channel concentrating device and is transmitted to payload control information of the link layer device. Physical layer transmission control channel information loaded in the payload field received to the link layer device is extracted, and a newly generated payload is transmitted to the payload field of the physical layer device. [Reference numerals] (AA) Transmission link layer device; (BB) Reception link layer device; (CC) Transmission interface; (DD) Reception interface; (EE) PHY device; (FF) SERDES interface; (GG) SERDES device + options
Abstract translation: 目的：提供一种用于互连物理层设备和链路层设备的信道集中方法，以改善低速信道不与高速信道相关联的问题。 构成：通过组合物理层设备（1100）的有效载荷和有效载荷控制信道信息来生成新的有效载荷，并将其传送到链路层设备的有效载荷字段。 在物理层装置中接收的有效载荷控制信道信息通过信道集中装置内的信道集中装置进行变换，发送到链路层装置的有效载荷控制信息。 提取加载到接收到链路层设备的有效载荷字段中的物理层传输控制信道信息，并将新生成的有效载荷传送到物理层设备的有效载荷字段。 （附图标记）（AA）传输链路层设备; （BB）接收链路层设备; （CC）传输接口; （DD）接待接口; （EE）PHY设备; （FF）SERDES接口; （GG）SERDES设备+选项
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公开(公告)号：KR101078056B1
公开(公告)日：2011-10-31
申请号：KR1020090023560
申请日：2009-03-19
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/00
Abstract: 클록데이터복원회로(clock data recovery, CDR) 없이상향의버스트모드신호를처리하기위한광 회선단말의버스트모드역다중화기가개시된다. 버스트모드역다중화기는광 네트워크단말혹은광 네트워크유닛으로부터상향링크를통해송신된버스트모드의직렬데이터를기준클록으로오버샘플링하는역다중화부; 및역다중화부에의해오버샘플링된역다중화버스데이터들의프리엠블패턴을측정하여가장정확한하나의버스데이터를선택출력하는신호선택부;를포함한다. 이버스트모드역다중화기를이용하면기존의클록을추출하는시간의지연을가지는연속모드 CDR에비하여성능이우수할뿐 아니라, 기존의상용버스트모드 CDR에비하여고가의아날로그소자의사용을피할수 있으므로저가로칩을구성할수 있다.
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公开(公告)号：KR1020100061281A
公开(公告)日：2010-06-07
申请号：KR1020090026643
申请日：2009-03-27
Applicant: 한국전자통신연구원
IPC: H04B10/03 , H04B10/032 , H04B10/2581
Abstract: PURPOSE: A protection apparatus and method for an optical network unit in a passive optical network are provided to conveniently recover the failure happening in an optical distribution device or an optical line. CONSTITUTION: An optical signal transceiver(110) receives a down-stream of an optical line terminal through a protection switching optical distribution network or a main optical distribution network. An up-stream of an optical network unit is received through a main optical distribution network or the protection switching optical distribution network. An optical signal controller(120) detects whether or not the down-stream or up-stream of the optical subscription terminal has failure. When the failure happens, the down-stream or the up-stream is transmitted thorugh the protection switching optical distribution network.
Abstract translation: 目的：提供一种用于无源光网络中的光网络单元的保护装置和方法，以方便地恢复在光分配设备或光线路中发生的故障。 构成：光信号收发器（110）通过保护倒换光分配网络或主光分配网络接收光线路终端的下行流。 通过主光分配网络或保护倒换光分配网络接收光网络单元的上行流。 光信号控制器（120）检测光订阅终端的下行或上行是否失败。 当故障发生时，向下流或向上流传输保护倒换光分配网络。
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公开(公告)号：KR1020100061268A
公开(公告)日：2010-06-07
申请号：KR1020090018892
申请日：2009-03-05
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/60
CPC classification number: H04B10/676 , H04J14/02
Abstract: PURPOSE: An apparatus and a method for recovering received data for a PON system are provided to increase an effective band by minimizing a protection interval between a preamble and an ONT in a GPON system. CONSTITUTION: An assignment band management unit(50) allocates start time information of an uplink transport frame to an optical line terminal. A reference time generating unit(52) includes a timer for confirming an expected arrival reference time of the uplink transmission frame. A comparing unit(54) compares the start time of the uplink transmission frame and the estimated arrival reference time. If the those two times are identical to each other, a reset signal generation unit(56) generates a reset signal. The reset signal generation unit provides an optical receives with the generated reset signal.
Abstract translation: 目的：提供一种用于恢复PON系统的接收数据的装置和方法，以通过使GPON系统中的前同步码和ONT之间的保护间隔最小化来增加有效频带。 构成：分配频带管理单元（50）将上行链路传输帧的开始时间信息分配给光线路终端。 参考时间生成单元（52）包括用于确认上行链路传输帧的预期到达基准时间的定时器。 比较单元（54）比较上行链路传输帧的开始时间和估计到达基准时间。 如果这两次相同，则复位信号生成部（56）生成复位信号。 复位信号生成单元向生成的复位信号提供光接收。
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Patent Agency Ranking
公开(公告)号：KR100809424B1
公开(公告)日：2008-03-07
申请号：KR1020060096587
申请日：2006-09-29
Applicant: 한국전자통신연구원
CPC classification number: H04J3/1694 , H04L2012/5605 , H04L2012/561 , H04L2012/5632 , H04Q11/0067 , H04Q2011/0064 , H04Q2011/0084
Abstract: An apparatus and a method for assigning a dynamic bandwidth for an optical network are provided to improve the efficiency of uplink bandwidth usage by using both of SLA information and wait state information of each T-CONT and calculate an uplink bandwidth allocation amount per each frame by reducing a processing rate when calculating a bandwidth allocation amount of each T-CONT. An SLA(Service Level Agreement) parameter storage(301) stores band allocation period and allocation amount information of each class queue calculated based on SLA. An allocation check storage(302) checks a band allocation period of class queue belonging to a corresponding type according to a service type of each class queue based on the information stored in the SLA parameter storage, and stores information used for determining a band allocation amount. A band allocation calculator(303) checks an allocation period per each frame by using the information stored in the allocation check storage, and calculates a bandwidth allocation amount of class queues as the allocation period. A final band allocation unit(305) records a band allocation amount of each class queue, calculated by the band allocation calculator, in real time. In consideration of factors including frame overhead, the final band allocation unit calculates total bandwidth usage amount in real time. By comparing the total bandwidth usage amount with total uplink bandwidth value, the final band allocation unit finally allocates an uplink bandwidth for each class queue.
Abstract translation: 提供了一种用于为光网络分配动态带宽的装置和方法，以通过使用每个T-CONT的SLA信息和等待状态信息来提高上行链路带宽使用的效率，并且通过以下方式计算每帧的上行链路带宽分配量： 在计算每个T-CONT的带宽分配量时降低处理速率。 SLA（服务水平协议）参数存储（301）存储基于SLA计算的每个类队列的频带分配周期和分配量信息。 分配检查存储器（302）根据存储在SLA参数存储器中的信息，根据每个类队列的服务类型来检查属于相应类型的类队列的频带分配周期，并存储用于确定频带分配量的信息 。 频带分配计算器（303）通过使用存储在分配检查存储器中的信息来检查每帧的分配周期，并且计算作为分配周期的类队列的带宽分配量。 最终频带分配单元（305）实时记录由频带分配计算器计算的各个队列的频带分配量。 考虑到包括帧开销在内的因素，最后的频带分配单元实时计算总带宽使用量。 通过比较总带宽使用量与总上行带宽值，最终频带分配单元最终为每个类队列分配上行带宽。
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公开(公告)号：KR100563662B1
公开(公告)日：2006-03-23
申请号：KR1020030093552
申请日：2003-12-19
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: 본 발명은 서버 또는 방화벽과, 외부 인터넷망 사이에서 트래픽을 분산시키기 위한 부하 분산 장치에 관한 것이다.
본 발명에 따른 부하 분산 장치는, 외부 인터넷 망과, 복수의 서버/방화벽에 사이에 송수신되는 신호를 분배하기 위하여, 상기 외부 인터넷 망으로부터의 수신 신호를 패킷으로 변환하고, 입력 패킷을 상기 외부 인터넷 망에 적합한 신호로 변환하는 제1 물리링크 정합소자와; 상기 제1 물리링크 정합소자로부터 수신한 패킷에 대하여, 목적지 서버/방화벽의 위치에 해당하는 물리링크 포트번호를 획득하기 위한 네트워크 프로세서; 및 상기 복수의 서버/방화벽으로부터 수신된 신호를 패킷으로 변환하고, 입력 패킷을 상기 복수의 서버/방화벽에 적합한 신호로 변환하는 제2 물리링크 정합소자를 포함하는 것을 특징으로 한다.
본 발명에 따르면 필드 프로그램이 가능한 네트워크 프로세서를 이용하여 저렴하게 부하 분산 장치를 구현할 수 있을 뿐만 아니라, 대용량의 데이터를 용이하게 처리할 수 있는 이점이 있다.
Load Balancer, Network Processor, Firewall-
公开(公告)号：KR1020040051354A
公开(公告)日：2004-06-18
申请号：KR1020020079270
申请日：2002-12-12
IPC: H04L12/50
Abstract: PURPOSE: A connection identifier interworking apparatus in an ATM switching system and a method therefor are provided to solve a problem of a traffic manager restricted in a range of VPI(Virtual Path Identifier) and VCI(Virtual Channel Identifier) fields by allowing the traffic manager to use a connection identifier created with VPI and VCI. CONSTITUTION: An origination OAM processor(521) generates an origination connection identifier(In_Contag) by using an input physical link number and an input VPI(In_VPI)/input VCI(In_VCI), converts a VPI field into '0' and VCI field into an origination connection identifier, and then, sends a cell to an origination traffic manager(522). Since the outputted cell is inputted to a destination traffic manager of a different giga-bit matching module through a switch module, the origination traffic manager(522) leaves the VPI field as '0' as it is, converts the VCI field from the origination connection identifier(In_Contag) into a destination identifier(Out_Contag), and then, transfers the cell to a switch matching unit(525).
Abstract translation: 目的：提供ATM交换系统中的连接标识符互通装置及其方法，以通过允许业务管理器来解决在VPI（虚拟路径标识符）和VCI（虚拟信道标识符）字段的范围内被限制的业务管理器的问题 使用由VPI和VCI创建的连接标识符。 构成：起始OAM处理器（521）通过使用输入物理链路号和输入VPI（In_VPI）/输入VCI（In_VCI））生成始发连接标识符（In_Contag），将VPI字段转换为“0”和VCI字段 发起连接标识符，然后将小区发送到始发业务管理器（522）。 由于输出单元通过开关模块输入到不同的千兆比特匹配模块的目的地流量管理器，所以起始流量管理器（522）将VPI字段原样保持为“0”，从起始转换VCI字段 连接标识符（In_Contag）转换为目的地标识符（Out_Contag），然后将该单元传送到交换机匹配单元（525）。
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公开(公告)号：KR1020040047309A
公开(公告)日：2004-06-05
申请号：KR1020020075464
申请日：2002-11-29
IPC: H04L12/28
Abstract: PURPOSE: An apparatus and method for interfacing different types of back pressures are provided to interface an in-band type back pressure unit and an out-band type back pressure unit by converting an in-band type control signal to an out-band type control signal. CONSTITUTION: A synchronous signal generator(507) generates a clock required for restoring cell synchronization and a synchronous signal corresponding to a current synchronization state. A cell extracting unit(505) extracts a 4-byte cell header upon receiving a cell start signal of a cell consisting of 64 bytes. A cell reading unit(504) extracts FBPBITMAP(0:39) information and BPSYNC(0:3) information included in a header related to a 12-byte back pressure which has been inputted during 3 clocks from the cell start signal, and compares/reads the BPSYNC signal with the synchronous signal generated from the synchronous signal generator(507). An FBPBITMAP register(506) temporarily stores the FBPBITMAP information. An FBPBITMAP comparator(503) compares the FBPBITMAP information temporarily stored in the FBPBITMAP register(506) with the current FBPBITMAP information inputted from the cell reading unit(504). A back pressure storing unit(502) stores information on a logical port. An external signal generator(501) converts the information on the logical port to an external back pressure signal.
Abstract translation: 目的：提供用于连接不同类型的背压的装置和方法，用于通过将带内型控制信号转换为带外型控制信号到带外型背压单元和带外型背压单元 信号。 构成：同步信号发生器（507）产生恢复单元同步所需的时钟和对应于当前同步状态的同步信号。 小区提取单元（505）在接收到由64字节组成的小区的小区起始信号时提取4字节的小区头。 单元读取单元（504）从单元开始信号中提取在3个时钟内输入的与12字节背压有关的标题中的FBPBITMAP（0:39）信息和BPSYNC（0：3）信息，并进行比较 /用同步信号发生器（507）产生的同步信号读取BPSYNC信号。 FBPBITMAP寄存器（506）临时存储FBPBITMAP信息。 FBPBITMAP比较器（503）将临时存储在FBPBITMAP寄存器（506）中的FBPBITMAP信息与从单元读取单元（504）输入的当前FBPBITMAP信息进行比较。 背压存储单元（502）存储关于逻辑端口的信息。 外部信号发生器（501）将逻辑端口上的信息转换为外部背压信号。
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