公开(公告)号：KR100347515B1

公开(公告)日：2002-08-07

申请号：KR1019990040124

申请日：1999-09-17

Applicant: 한국전자통신연구원

Inventor： 최강일 ,  채종억 ,  고병도 ,  노장래 ,  김재근

IPC: H04L12/28

Abstract: 본발명은비동기전송모드(ATM: Asynchronous Transfer Mode) 교환시스템에서계층관리기능을실시간으로처리해주고, 구현비용도저렴한 ATM 교환시스템에서의실시간계층관리처리장치및 방법을제공하는데 그목적이있다. 본발명에따르면, 망측과연결되어입출력되는데이터에대하여 ATM 처리를수행하는망측라인카드수단과, 상기망측라인카드수단을모듈단위로제어하고계층관리기능을수행하는망측제어수단과, 가입자측과연결되어입출력되는데이터에대하여 ATM 처리를수행하는가입자측라인카드수단과, 상기가입자측라인카드수단을모듈단위로제어하고계층관리기능을수행하는가입자측제어수단과, 상기망측라인카드수단과상기가입자측라인카드수단의 ATM 셀을교환해주는스위치수단과, ATM 액세스시스템을전체적으로관리하는망 관리시스템의에이전트역할을수행하는운용관리수단과, 상기망측제어수단, 가입자측제어수단, 및운용관리수단간의통신기능을수행하는통신채널수단을포함하여이루어진것을특징으로하는실시간계층처리장치가제공된다.

公开(公告)号：KR100346793B1

公开(公告)日：2002-08-03

申请号：KR1019990037076

申请日：1999-09-02

Applicant: 한국전자통신연구원

Inventor： 채종억 ,  조효기 ,  문옥배 ,  조규남 ,  고병도 ,  노장래 ,  김재근

IPC: H04L12/28

Abstract: 본발명은수동광스플리터를사용하여점대다중점접속이가능한수동광네트워크의가입자측기능을갖는광가입자망가입자정합부구조에관한것으로서, 수동광소자를기반으로하는광가입자망에있어전송방향에따라구분되어각각프레임및 라인처리부로나뉘어져이루어진상향및 하향처리부를포함하여구성함으로써, 가입자댁내까지광화하기위하여가장경제적인기술인수동광네트워크를활용하여기존서비스뿐만아니라멀티미디어서비스제공이가능하고, 하향과상향대역폭을비대칭으로제공함으로써보다효율적으로망자원을활용할수 있으며, 광소자의수를획기적으로줄일수 있기때문에경제적으로망 가입자분배망을구축할수 있는효과를가진다.

公开(公告)号：KR100340050B1

公开(公告)日：2002-06-12

申请号：KR1019990039896

申请日：1999-09-16

Applicant: 한국전자통신연구원

Inventor： 강성수 ,  채종억 ,  고병도 ,  노장래 ,  김재근

IPC: H04L7/00

Abstract: 1. 청구범위에기재된발명이속하는기술분야본 발명은동기식디지털전송시스템의역동기화장치에관한것임. 2. 발명이해결하고자하는과제본 발명은매 HDSL 프레임마다시간에따라가변되는프레임끝플래그정보및 스터프펄스정보를이용하여데이터의출력을제어하게되는기준주파수의위상을변화시키는데사용하므로써, 지터/원더를현저하게감소시킬수 있는동기식디지털전송시스템의역동기화장치를제공하는데그 목적이있다. 3. 발명의해결방법의요지본 발명은, 수신신호에서클럭을추출하는클럭추출수단; 프레임끝플래그와스터프플래그를제공하고, 수신신호를디코딩하는디코딩수단; 수신신호의평균위상오차를검출하는평균위상오차검출수단; 평균위상오차검출수단의리셋동작을제어하는오차검출제어수단; 기준주파수를발생하기위한기준주파수발생수단; 기준주파수를필터링하는필터링수단; 및디코딩수단에의해디코딩된신호를저장하여출력하는저장수단을포함한다. 4. 발명의중요한용도본 발명은동기식디지털전송시스템에이용됨.

公开(公告)号：KR100322476B1

公开(公告)日：2002-02-07

申请号：KR1019990057675

申请日：1999-12-14

Applicant: 한국전자통신연구원

Inventor： 김정학 ,  유태환 ,  이훈 ,  이정진 ,  김재근

IPC: H04L27/02

CPC classification number: H04L5/023 ,  H04L27/2634 ,  H04L27/264 ,  H04L27/265 ,  H04M11/062

Abstract: 본발명은비대칭디지털가입자(ADSL : Asymmetric Digital Subscriber Line) 변복조시스템과상호연동이가능한광대역다중-톤변복조시스템(multi-tone transceiver system)에관한것으로서, 이산다중-톤변복조시스템과코사인-변조필터뱅크(CMFB : Cosine-Modulated Filter Bank) 트랜스멀티플렉서를이용한 2단계변복조시스템에관한것이다. 상기 2 단계의변복조방식에서는 CMFB를채널전송특성에관계없이각각의부밴드간의상호간섭을최소화할수 있도록설계하여각 부밴드신호에대해물리적으로투명한전송채널을제공할수 있다. DMT-CMFB 2 단계변복조시스템은상대적으로단순한구조로구현할수 있으며, 각부채널의 DMT 변복조기능을구현할때 회로의고속동작능력을최대한이용하여고속퓨리에변환(FFT) 기능을다른부채널과공유하는구조로구현하여회로크기를대폭감소시킬수 있다. CMFB의변복조단계에서는다양한전송환경에서도부채널간의상호간섭이최소화될 수있도록완전복원에근사하면서간단히구현되는 CMFB 필터를구성하는것이중요하며본 발명에서는이러한필터의설계조건을포함한다.

公开(公告)号：KR100319748B1

公开(公告)日：2002-01-09

申请号：KR1019990056220

申请日：1999-12-09

Applicant: 한국전자통신연구원

Inventor： 김승관 ,  이동호 ,  김재근

IPC: H01S3/067

CPC classification number: H01S3/067 ,  G02B6/2766 ,  G02B6/29319 ,  G02B6/2935 ,  G02B6/29358 ,  G02B6/29391 ,  H01S3/06712 ,  H01S3/0675 ,  H01S3/06791 ,  H01S3/10023 ,  H01S3/1068 ,  H01S3/108 ,  H01S2301/04

Abstract: 본발명은출력등화된광대역다채널광섬유레이저에관한것이다. 본발명은발진하는레이저의파장영역을확장하여채널수를증가시킴과동시에채널별레이저출력을균등하게만들어보다넓은파장대역의유용한다채널을제공하는광섬유레이저를제공하고자한다. 본발명은여러파장의빛이적어도하나이상의이득매질을공유하는형태의다채널광섬유레이저에있어서, 이득을제공하는이득제공수단; 및공진방향결정과, 공진기손실조절및 편광조절을통해공진된레이저를출력하는공진수단을구비하되, 상기공진수단내에설치되어, 발진하는레이저의파장영역을확장하여발진채널의개수를증가시키고, 그출력을채널별로균등화하는이득평탄화수단을포함한다. 본발명은파장분할다중광통신시스템의전송용및 성능평가용광원으로이용된다.

公开(公告)号：KR1020010058253A

公开(公告)日：2001-07-05

申请号：KR1019990062469

申请日：1999-12-27

Applicant: 한국전자통신연구원

Inventor： 전경규 ,  유태환 ,  김재근

IPC: H03M13/00

CPC classification number: H03M13/1515 ,  H03M13/3715

Abstract: PURPOSE: A read-Solomon decoder with variable error correction function is provided to perform decoding by fixing error correction number with one decoder though code word receive differently error correction number. CONSTITUTION: An error correction number control part(40) controls to store number corresponding with error correction number from error value polynomial and error location polynomial. An error value account part counts error value from error value polynomial. An error value account part counts error value from error value polynomial. An error location and size account part counts error location and size by utilizing the error location account part and the error value account part. An error correction part read-Solomon decoder with variable error correction function corrects error by adding error location counted and received code word and size each other.

Abstract translation: 目的：提供具有可变误差校正功能的读Solomon解码器，通过使用一个解码器固定纠错码来执行解码，尽管码字接收不同的纠错号码。 构成：纠错数控制部分（40）控制从误差值多项式和误差位置多项式存储对应于纠错数的数字。 错误值帐户部分从错误值多项式计数错误值。 错误值帐户部分从错误值多项式计数错误值。 错误位置和大小帐户部分通过使用错误位置帐户部分和错误值帐户部分来计算错误位置和大小。 具有可变误差校正功能的错误校正部分读取 - Solomon解码器通过添加错误位置计数和接收的代码字和大小来校正错误。

公开(公告)号：KR1020010027893A

公开(公告)日：2001-04-06

申请号：KR1019990039871

申请日：1999-09-16

Applicant: 한국전자통신연구원

Inventor： 강선 ,  채종억 ,  김봉태 ,  유태환 ,  김재근

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L2012/5652 ,  H04L2012/5671 ,  H04L2012/5672

Abstract: PURPOSE: A device for supplying a voice/telephone service in an ATM(Asynchronous Transfer Mode) network is provided to supply the voice/telephone service through the ATM network, and to connect a public switched telephone network with a narrow-band network. CONSTITUTION: A transmitting time slot switch(110) performs a 256 times 256 switching for 256 channels inputted through E1/DS1 interfaces. A transmitting AAL(ATM(Asynchronous Transfer Mode) Adaptation Layer processor(120) performs an AAL type 1 function each line. A transmitting ATM processor(130) attaches an ATM header to an ATM payload, and generates an ATM cell. A transmitting connection processor(140) performs a reverse-multiplexing for the ATM cell, and again performs a multiplexing for the ATM cell to transmit the ATM cell to a transmitting UTOPIA(Universal Test and Operations Physical Interface for ATM) interface. A receiving connection processor(150) performs a reverse-multiplexing for the ATM cell transmitted from a receiving UTOPIA interface, and performs a multiplexing for the ATM cell to transmit the ATM cell to a receiving ATM processor(160). The receiving ATM processor(160) retrieves the ATM header, and transmits extracted user cell to a receiving AAL processor(170). An extracted OAM(Operation And Maintenance) cell checks/stores a CRC 10. The receiving AAL processor(170) retrieves a SAR(Segment And Reassembly) header, and extracts a RTS(Residual Time Stamp) value to decide whether a pointer exists. A receiving time slot switch(180) receives the ATM payload from the receiving AAL processor(170), and records the ATM payload on a region assigned to an outer SRAM(Static Random Access Memory)(101). The receiving time slot switch(180) reads data to perform a 256 times 256 switching for the data in order to buffer a cell delay variation.

Abstract translation: 目的：提供一种用于在ATM（异步传输模式）网络中提供语音/电话服务的设备，以通过ATM网络提供语音/电话服务，并将公共交换电话网络与窄带网络连接起来。 规定：发送时隙交换机（110）对通过E1 / DS1接口输入的256个通道进行256次256次切换。 发送AAL（ATM（异步传输模式）适配层处理器（120）每行执行AAL类型1功能，发送ATM处理器（130）将ATM报头附加到ATM有效载荷，并产生ATM信元，发送连接 处理器（140）对ATM信元执行反向复用，并且再次执行ATM信元的复用以将ATM信元发送到发送UTOPIA（用于ATM的通用测试和操作物理接口）接口。接收连接处理器 ）对从接收UTOPIA接口发送的ATM信元执行反向复用，并且执行ATM信元的复用以将ATM信元发送到接收ATM处理器（160），接收ATM处理器（160）检索ATM报头 ，并将提取的用户单元发送到接收AAL处理器（170），提取的OAM（Operation And Maintenance）单元检查/存储CRC 10.接收AAL处理器（170）检索SAR（段和再组合 y）头，并提取RTS（剩余时间戳）值以决定是否存在指针。 接收时隙切换器（180）从接收AAL处理器（170）接收ATM有效载荷，并将ATM有效载荷记录在分配给外部SRAM（静态随机存取存储器）（101）的区域上。 接收时隙开关（180）读取数据以对数据执行256次256次切换，以便缓冲单元延迟变化。

公开(公告)号：KR1020010001985A

公开(公告)日：2001-01-05

申请号：KR1019990021545

申请日：1999-06-10

Applicant: 한국전자통신연구원

Inventor： 이상호 ,  김찬 ,  고병도 ,  김재근

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L2012/5635 ,  H04L2012/5652

Abstract: PURPOSE: The apparatus for removing lost packet data in order to prevent traffic congestion in an asynchronous transfer mode(ATM) system is provided to enable a stable ATM operation, and to guarantee the service with good quality for various types of service traffic, by preventing the traffic congestion in the system using minimum hardware logic. CONSTITUTION: A received cell processor(B2) generates a connection memory address(S2) related to a received cell(S1), a packet start signal and a packet end signal(S3). A connection table managing part(B3) manages an unnecessary cell designating signal(S5) and a negotiation parameter(S4). A negotiation violation checking part(B4) detects the cell that excesses a negotiated traffic rate, and sets the signal(S5) according to the result of the detection. An unnecessary cell processor(B5) combines the unnecessary cell designating signal(S5) received from the part(B3) with a negotiation violation signal(S6) applied from the part(B4), and thereby removes the unnecessary cell.

Abstract translation: 目的：为了防止异步传输模式（ATM）系统中的流量拥塞，用于消除丢失的分组数据的装置被提供以实现稳定的ATM操作，并通过防止各种类型的服务流量来保证具有良好质量的服务 系统中的交通拥堵使用最小的硬件逻辑。 构成：接收到的小区处理器（B2）生成与接收到的小区（S1）相关的连接存储器地址（S2），分组开始信号和分组结束信号（S3）。 连接表管理部（B3）管理不必要的小区指定信号（S5）和协商参数（S4）。 协商违反检查部（B4）检测超过协商的业务速率的小区，并根据检测结果来设定信号（S5）。 不必要的单元处理器（B5）将从部分（B3）接收的不必要的单元指定信号（S5）与从部分（B4）应用的协商冲突信号（S6）组合，从而去除不必要的单元。

公开(公告)号：KR1020010001984A

公开(公告)日：2001-01-05

申请号：KR1019990021544

申请日：1999-06-10

Applicant: 한국전자통신연구원

Inventor： 이상호 ,  김찬 ,  고병도 ,  김재근

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L2012/562 ,  H04L2012/5625 ,  H04L2012/5653

Abstract: PURPOSE: The apparatus for processing the function of an asynchronous transfer mode(ATM) layer is provided to suggest an ATM device competitive in cost and function, by implementing the functions for buffering quality of service(QOS) of a traffic, processing operation and management(OAM), and controlling a usage parameter and controlling the traffic, in a single ASIC chip. CONSTITUTION: A connection part(B2) generates a memory address for reception connection. A reception connection managing table(B3) stores a processed parameter value. A reception routing controller(B6) is connected to the table(B3), an OAM processor(B5) and a usage parameter controller(B4). An output controller(B7) is connected between the controller(B6) and a connection part(B10). A test cell generator(B8) creates an ATM cell. A controller(B9) multiplexes cells according to a priority order. A connection part(B12) generates a memory address for transmission connection. A transmission routing controller(B14) stores input cells in a priority order queue. A transmission cell multiplex controller(B18) multiplexes a loop-back cell according to its priority order.

Abstract translation: 目的：提供用于处理异步传输模式（ATM）层功能的装置，通过实现缓冲业务质量（QOS），处理操作和管理功能，提出ATM设备的成本和功能竞争力 （OAM），并且在单个ASIC芯片中控制使用参数并控制流量。 构成：连接部分（B2）产生用于接收连接的存储器地址。 接收连接管理表（B3）存储经处理的参数值。 接收路由控制器（B6）连接到表（B3），OAM处理器（B5）和使用参数控制器（B4）。 输出控制器（B7）连接在控制器（B6）和连接部件（B10）之间。 测试单元发生器（B8）创建一个ATM信元。 控制器（B9）根据优先级顺序复用单元。 连接部（B12）生成用于传输连接的存储器地址。 传输路由控制器（B14）将输入单元存储在优先级顺序队列中。 传输单元复用控制器（B18）根据其优先级顺序复用环回小区。

公开(公告)号：KR1020000031826A

公开(公告)日：2000-06-05

申请号：KR1019980048054

申请日：1998-11-10

Applicant: 한국전자통신연구원

Inventor： 이상호 ,  김재근

IPC: H04L12/433

CPC classification number: H04L12/5601 ,  H04L2012/5653 ,  H04L2012/5672 ,  H04L2012/5678

Abstract: PURPOSE: An ATM traffic generation device for controlling a cell generation speed is provided to realize various kinds of traffic in a minimum hardware by generating various kinds of ATM cell according to a user's request. CONSTITUTION: An ATM traffic generation device for controlling a cell generation speed comprises a cell generation portion, a cell generation control portion(12), a physical layer connection portion(13), and a switching portion(14). The cell generation portion generates a cell by performing the multiplexing for stored cell information according to an information selection signal. The cell generation control portion outputs the information selection signal to the cell generation portion. The physical layer connection portion generates a connection signal to an outer physical layer. The switching portion generates a connection signal to an outer switching device.

Abstract translation: 目的：提供一种用于控制小区生成速度的ATM流量生成装置，通过根据用户的请求生成各种ATM信元来实现最小硬件的各种业务。 构成：用于控制小区生成速度的ATM业务量生成装置包括小区生成部，小区生成控制部（12），物理层连接部（13）和切换部（14）。 小区生成部通过根据信息选择信号对存储的小区信息进行多路复用来生成小区。 小区生成控制部将信息选择信号输出到小区生成部。 物理层连接部分生成到外部物理层的连接信号。 开关部分产生到外部开关装置的连接信号。