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    • 6. 发明授权
    • 기가비트 이더넷 - 수동 광 네트워크에서 아이들 패턴출력 제어회로
    • 기가비트이더넷 - 수동광네트워크에서아이들패턴출력제어회로
    • KR100419425B1
    • 2004-02-21
    • KR1020020005875
    • 2002-02-01
    • 삼성전자주식회사
    • 성환진박태성원신희이민효
    • H04L12/28
    • H04Q11/0062H04L7/06H04L2007/045H04Q11/0066H04Q11/0067H04Q2011/0094
    • An idle pattern output-control circuit used in a point-to-multipoint communication based Gigabit Ethernet-passive optical network (GE-PON) is provided to prevent data loss caused by an idle pattern in a Gigabit-Ethernet controller. In a GE-PON having an optical-line terminal (OLT), a plurality of optical-network units (ONUs) connected to each other via an optical-distribution network (ODN), a media-access controller (MAC), and a physical-coding sublayer (PCS), in which the PCS transmits idle-pattern data to a serializer/deserializer (SERDES) when there is no data to be transmitted to the OLT, an idle-pattern output-control circuit comprising a data converter for converting an idle-pattern data generated from the PCS into a low-level optical signal for subsequent transmission to the OLT, and a switching circuit for selecting data generated from the PCS for subsequent transmission to the SERDES when there is data to be transmitted and for selecting data converted by the data converter for subsequent transmission to the SERDES when there is no data to be transmitted.
    • 提供基于千兆以太网无源光网络(GE-PON)的点到多点通信中使用的空闲模式输出控制电路,以防止由千兆以太网控制器中的空闲模式导致的数据丢失。 在具有光线路终端(OLT)的GE-PON中,经由光分配网络(ODN)彼此连接的多个光网络单元(ONU),介质访问控制器(MAC)和 物理编码子层(PCS),其中当没有数据要发送到OLT时,PCS将空闲模式数据发送到串行器/解串器(SERDES),空闲模式输出控制电路包括数据转换器 将从PCS产生的空闲模式数据转换为低级光学信号以便随后发送到OLT;以及切换电路,用于当存在要发送的数据时选择从PCS产生的数据用于随后发送到SERDES, 当没有要发送的数据时,选择由数据转换器转换的数据以便随后发送到SERDES。 <图像>
    • 8. 发明公开
    • 데이터를 안정적으로 전송할 수 있는 기가비트 이더넷기반의 수동 광가입자망 및 이를 이용한 데이터 암호화 방법
    • GIGABIT以太网被动光网络能够稳定传输数据和数据加密方法使用GIGABIT ETHERNET被动光网络使用AES密钥
    • KR1020050021794A
    • 2005-03-07
    • KR1020030059018
    • 2003-08-26
    • 삼성전자주식회사
    • 이학필박세강성환진김영석오윤제안준성박태성김수형
    • H04L9/30
    • H04L9/0825H04L9/0844
    • PURPOSE: A gigabit ethernet passive optical network capable of stably transmitting data and a data encryption method using the gigabit ethernet passive optical network are provided to increase encryption efficiency by using an AES(Advanced Encryption Standard) secret key. CONSTITUTION: A GE-PON(Gigabit Ethernet Passive Optical Network) is comprised of an OLT(Optical Line Terminal)(100) for setting a channel and transmitting data through the channel and an ONT(Optical Network Terminal)(400). The OLT comprises a GE-PON OLT MAC(Media Access Control) module(120), a GMII(Gigabit Media Independent Interface) module(130), an OLT key managing unit(200), and a data encryption unit(180). The GE-PON OLT MAC module supports a CSMA/CD(Carrier Sense Multiple Access/Collision Detect) operation for data inputted from a second layer out of seven OSI(Open Systems Interconnection communications) layers. The GMII module provides an interface between a physical layer and the second layer. The OLT key managing unit creates an AES secret key and then encrypts the created AES secret key. The data encryption unit encrypts a plain text using the AES secret key. The ONT comprises a GE-PON ONT MAC module(420), a GMII module(430), an ONT key managing unit(500), and a data decoder(480). The GE-PON ONT MAC module and the GMII module(430) perform operations similar to those of the GE-PON OLT MAC module and the GMII module in the OLT.
    • 目的:提供能够稳定传输数据的千兆以太网无源光网络和使用千兆以太网无源光网络的数据加密方法,以通过使用AES(高级加密标准)密钥提高加密效率。 规定:GE-PON(千兆以太网无源光网络)由用于设置信道和通过信道发送数据的OLT(光线路终端)(100)和ONT(光网络终端)(400)组成。 OLT包括GE-PON OLT MAC(媒体访问控制)模块(120),GMII(千兆位媒体独立接口)模块(130),OLT密钥管理单元(200)和数据加密单元(180)。 GE-PON OLT MAC模块支持从七个OSI(开放系统互连通信)层中的第二层输入的数据的CSMA / CD(载波侦听多路访问/冲突检测)操作。 GMII模块提供物理层和第二层之间的接口。 OLT密钥管理单元创建AES密钥,然后加密所创建的AES密钥。 数据加密单元使用AES密钥加密明文。 ONT包括GE-PON ONT MAC模块(420),GMII模块(430),ONT密钥管理单元(500)和数据解码器(480)。 GE-PON ONT MAC模块和GMII模块(430)执行与OLT中的GE-PON OLT MAC模块和GMII模块类似的操作。
    • 9. 发明公开
    • 이더넷 수동 광가입자망 시스템의 논리적 MAC구현방법과 그 방법을 실현시키기 위한 프로그램을 기록한컴퓨터로 읽을 수 있는 기록매체
    • 用于执行以太网被动光网络系统的逻辑MAC的方法和程序执行相同的计算机可读记录介质
    • KR1020040082509A
    • 2004-09-30
    • KR1020030017072
    • 2003-03-19
    • 삼성전자주식회사
    • 김진희정도영성환진장순호이민효원신희박태성김영석
    • H04L29/06
    • H04Q11/0067H04Q11/0066H04Q11/0071H04Q2011/0064Y10T70/5403
    • PURPOSE: A method for implementing the logical MAC of ethernet passive optical network system and a computer readable recording medium in which a program performs the same, which includes LLID(Logical link identification) information and transmits it to the upper layer. CONSTITUTION: A method for implementing the logical MAC of ethernet passive optical network system includes a destination address field, a source address field, a logical link ID field, a length/type field, a packet assembly and disassembly field and a frame check sequence field. The destination address field displays the address of the destination. The source address field displays the address of the place of dispatch. The logical link ID field displays the logical connection identifier. The length/type field displays the length and the type of the Ethernet frame. The packet assembly and disassembly field displays the data of the Ethernet frame. And, the frame check sequence is positioned at the end of each frame to detect the error when transmitting information by frame unit.
    • 目的:一种实现以太网无源光网络系统的逻辑MAC的方法及其程序执行相同的计算机可读记录介质,其中包括LLID(逻辑链路识别)信息,并将其传输到上层。 构成:实现以太网无源光网络系统的逻辑MAC的方法包括目的地址字段,源地址字段,逻辑链路ID字段,长度/类型字段,分组组合和反汇编字段以及帧校验序列字段 。 目的地址字段显示目的地址。 源地址字段显示发送地点的地址。 逻辑链路ID字段显示逻辑连接标识符。 length / type字段显示以太网帧的长度和类型。 数据包组装和拆卸字段显示以太网帧的数据。 并且,帧检查序列位于每帧的末尾,以便以帧为单位发送信息时检测错误。
    • 10. 发明公开
    • 이더넷 기반의 수동 광 가입자망에서 상향 트래픽 제어 방법
    • 以太网被动光网络中的上行交通控制方法,特别是在数据优先升级时解决惩罚性罚款的相关性
    • KR1020050013779A
    • 2005-02-05
    • KR1020030052336
    • 2003-07-29
    • 삼성전자주식회사
    • 김수형성환진오호일김영석오윤제박태성
    • H04L12/28
    • H04Q11/0067H04L47/2441H04L47/30H04L47/50H04L47/522H04L47/621H04L47/6215H04Q11/0066H04Q11/0071H04Q2011/0064
    • PURPOSE: An upper traffic control method in an EPON(Ethernet Passive Optical Network) is provided to compare low watermarks set in each buffer with a quantity of data frames, and to transmit the data frames even though the data frames have lower priorities if the data frames are more than the low watermarks, thereby guaranteeing the priorities of the data frames while effectively using buffer resources. CONSTITUTION: An FIFO scheduler checks whether data frames exist in a buffer(S100). If so, the scheduler sends the data frames(S120), and decides whether data frames exist in the second buffer at less than low watermarks set for guaranteeing minimum traffic of transmission frames(S140). If not, the scheduler decides whether the data frames existing in the first buffer are less than the low watermarks(S160). If so, the scheduler transmits the data frames existing in the second buffer(S180). If data frames existing in the third buffer are more than the low watermarks(S200), the scheduler decides whether the data frames of the first buffer are less than the low watermarks(S220). If so, the scheduler transmits the data frames existing in the third buffer(S240).
    • 目的:提供EPON(以太网无源光网络)中的较高流量控制方法,用于将每个缓冲器中设置的低水印与一定数量的数据帧进行比较,并且即使数据帧具有较低的优先级,如果数据 帧比低水印更多,从而在有效地使用缓冲器资源的同时保证数据帧的优先级。 构成:FIFO调度程序检查缓冲区中是否存在数据帧(S100)。 如果是,则调度器发送数据帧(S120),并且确定数据帧是否存在于低于设置用于保证传输帧的最小流量的低水印的第二缓冲器中(S140)。 如果不是,则调度器确定存在于第一缓冲器中的数据帧是否小于低水印(S160)。 如果是,则调度器发送存在于第二缓冲器中的数据帧(S180)。 如果存在于第三缓冲器中的数据帧大于低水印(S200),则调度器判定第一缓冲器的数据帧是否小于低水印(S220)。 如果是,则调度器发送存在于第三缓冲器中的数据帧(S240)。