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    • 21. 发明授权
    • Apparatus and method of classifying packets
    • 分组的装置和方法
    • US08165125B2
    • 2012-04-24
    • US12206078
    • 2008-09-08
    • Jung Hak KimTae Whan YooSong In Choi
    • Jung Hak KimTae Whan YooSong In Choi
    • H04L12/28H04L12/56
    • H04L47/10H04L47/2441
    • The present invention relates to an apparatus and method of classifying packets that can support a quality of service (QoS) in a network system. An apparatus for classifying packets according to an exemplary embodiment of the present invention includes: a first unit that analyzes input data packets, extracts pluralities of specific fields from the data packets using an analyzed result, and outputs the pluralities of specific fields; pluralities of second units that compare data of a first portion of the pluralities of extracted specific fields with data in a table, determine whether items that satisfy a predetermined condition exist in the table, and output hit signals and pointers indicating positions of the items that satisfy the predetermined condition when the items that satisfy the predetermined condition exist in the table; and a third unit that compares data of a second portion of the pluralities of extracted specific fields and key data including the pointers input from the pluralities of second units and rule data in a rule table and outputs classes corresponding to the items when the key data and the rule data are matched.
    • 本发明涉及对能够支持网络系统中的服务质量(QoS)的分组进行分类的装置和方法。 根据本发明的示例性实施例的用于分类分组的装置包括:分析输入数据分组的第一单元,使用分析结果从数据分组中提取多个特定字段,并输出多个特定字段; 将多个提取的特定字段的第一部分的数据与表中的数据进行比较的多个第二单元,确定表中是否存在满足预定条件的项目,并输出指示满足条件的位置的命中信号和指针 当表中存在满足预定条件的项目时的预定条件; 以及第三单元,其将多个提取的特定字段的第二部分的数据和包括从多个第二单元输入的指针和规则数据的密钥数据的数据进行比较,并输出与密钥数据和密钥数据对应的项目 规则数据匹配。
    • 23. 发明申请
    • MAC security entity for link security entity and transmitting and receiving method therefor
    • 链路安全实体的MAC安全实体及其发送和接收方法
    • US20060136715A1
    • 2006-06-22
    • US11266627
    • 2005-11-03
    • Kyeong Soo HanKwang Ok KimTae Whan Yoo
    • Kyeong Soo HanKwang Ok KimTae Whan Yoo
    • H04L9/00
    • H04L63/126H04L9/0631H04L9/0637H04L9/3242H04L63/1458
    • An apparatus and method for providing a security function of frames transmitted between optical network terminals (OLTs) and optical network units (ONUs) in an Ethernet passive optical network (EPON) providing media access control (MAC) services are provided. The apparatus includes: a frame classifier distinguishing the type of a frame, and based on the logical link identifier (LLID) of the distinguished frame, determining whether or not the frame is a security link to which a security function is to be applied; a bypass unit delaying a no-security-function frame so that a processing time for converting the security-function-applied frame classified in the frame classifier into an encrypted frame is the same as a time for processing the no-security-function frame; and a parameter generation unit transmitting in relation to each of the LLIDs, a parameter set value including a security-function-application setting signal used in the encryption, decryption and authentication of the frame, a frame decryption signal, an encryption mode selection signal, and an authentication intensity adjustment signal.
    • 提供了一种在提供媒体访问控制(MAC)服务的以太网无源光网络(EPON)中提供在光网络终端(OLT)和光网络单元(ONU)之间传输的帧的安全功能的装置和方法。 该装置包括:区分帧的类型的帧分类器,并且基于识别帧的逻辑链路标识符(LLID),确定帧是否是要应用安全功能的安全链路; 旁路单元延迟无安全功能帧,使得将分类在帧分类器中的安全功能应用帧转换为加密帧的处理时间与用于处理无安全功能帧的时间相同; 以及相关于每个所述LLID发送的参数生成单元,包括在所述帧的加密,解密和认证中使用的安全功能应用设置信号的参数设置值,帧解密信号,加密模式选择信号, 和认证强度调整信号。
    • 25. 发明授权
    • MAC security entity for link security entity and transmitting and receiving method therefor
    • 链路安全实体的MAC安全实体及其发送和接收方法
    • US07797745B2
    • 2010-09-14
    • US11266627
    • 2005-11-03
    • Kyeong Soo HanKwang Ok KimTae Whan Yoo
    • Kyeong Soo HanKwang Ok KimTae Whan Yoo
    • G06F12/14
    • H04L63/126H04L9/0631H04L9/0637H04L9/3242H04L63/1458
    • An apparatus and method for providing a security function of frames transmitted between optical network terminals (OLTs) and optical network units (ONUs) in an Ethernet passive optical network (EPON) providing media access control (MAC) services are provided. The apparatus includes: a frame classifier distinguishing the type of a frame, and based on the logical link identifier (LLID) of the distinguished frame, determining whether or not the frame is a security link to which a security function is to be applied; a bypass unit delaying a no-security-function frame so that a processing time for converting the security-function-applied frame classified in the frame classifier into an encrypted frame is the same as a time for processing the no-security-function frame; and a parameter generation unit transmitting in relation to each of the LLIDs, a parameter set value including a security-function-application setting signal used in the encryption, decryption and authentication of the frame, a frame decryption signal, an encryption mode selection signal, and an authentication intensity adjustment signal.
    • 提供了一种在提供媒体访问控制(MAC)服务的以太网无源光网络(EPON)中提供在光网络终端(OLT)和光网络单元(ONU)之间传输的帧的安全功能的装置和方法。 该装置包括:区分帧的类型的帧分类器,并且基于识别帧的逻辑链路标识符(LLID),确定帧是否是要应用安全功能的安全链路; 旁路单元延迟无安全功能帧,使得将分类在帧分类器中的安全功能应用帧转换为加密帧的处理时间与用于处理无安全功能帧的时间相同; 以及相关于每个所述LLID发送的参数生成单元,包括在所述帧的加密,解密和认证中使用的安全功能应用设置信号的参数设置值,帧解密信号,加密模式选择信号, 和认证强度调整信号。
    • 26. 发明申请
    • APPARATUS AND METHOD OF CLASSIFYING PACKETS
    • 分类和分类方法
    • US20090135826A1
    • 2009-05-28
    • US12206078
    • 2008-09-08
    • Jung Hak KIMTae Whan YooSong In Choi
    • Jung Hak KIMTae Whan YooSong In Choi
    • H04L12/28
    • H04L47/10H04L47/2441
    • The present invention relates to an apparatus and method of classifying packets that can support a quality of service (QoS) in a network system. An apparatus for classifying packets according to an exemplary embodiment of the present invention includes, a first unit that analyzes input data packets, extracts pluralities of specific fields from the data packets using an analyzed result, and outputs the pluralities of specific fields; pluralities of second units that compare data of a first portion of the pluralities of extracted specific fields with data in a table, determine whether items that satisfy a predetermined condition exist in the table, and output hit signals and pointers indicating positions of the items that satisfy the predetermined condition when the items that satisfy the predetermined condition exist in the table; and a third unit that compares data of a second portion of the pluralities of extracted specific fields and key data including the pointers input from the pluralities of second units and rule data in a is rule table and outputs classes corresponding to the items when the key data and the rule data are matched.
    • 本发明涉及对能够支持网络系统中的服务质量(QoS)的分组进行分类的装置和方法。 根据本发明的示例性实施例的用于分类分组的装置包括:分析输入数据分组的第一单元,使用分析结果从数据分组中提取多个特定字段,并输出多个特定字段; 将多个提取的特定字段的第一部分的数据与表中的数据进行比较的多个第二单元,确定表中是否存在满足预定条件的项目,并输出指示满足条件的位置的命中信号和指针 当表中存在满足预定条件的项目时的预定条件; 以及第三单元,其将多个提取的特定字段的第二部分的数据和包括从多个第二单元输入的指针的密钥数据和规则数据比较为一个规则表,并输出与密钥数据 并且规则数据匹配。
    • 27. 发明申请
    • EPON bridge apparatus and method for forwarding thereof
    • EPON桥接装置及其转发方法
    • US20080198857A1
    • 2008-08-21
    • US11514561
    • 2006-09-01
    • Chan KimTae Whan YooYool KwonBong-Tae Kim
    • Chan KimTae Whan YooYool KwonBong-Tae Kim
    • H04L12/66H04B10/00
    • H04Q11/0067H04Q11/0071H04Q2011/0064
    • The invention relates to an EPON bridge apparatus and a forwarding method thereof. In case of receiving frame from the network port or the PON port, the apparatus associates the port having the received frame inputted with source MAC address of the received frame to learn the information in an FDB table which manages port information for the learned MAC address. Then the apparatus refers to the FDB table to remove LLID from upstream frame, and then forwards the upstream frame to the network port, while attaching LLID corresponding to destination MAC address to downstream frame to transmit to the PON port. Bridging between ONUs are possible with flooding capability using anti-LLID. It provides VLAN-LLID translation mode with support for VLAN tag addition/removal at the ONU side. It also provides multicast pruning function for the downstream.
    • 本发明涉及一种EPON桥接装置及其转发方法。 在从网络端口或PON端口接收帧的情况下,该装置将输入的接收帧的端口与接收到的帧的源MAC地址相关联,以学习管理学习MAC地址的端口信息的FDB表中的信息。 然后设备参考FDB表从上行帧删除LLID,然后将上行帧转发到网络端口,同时将对应于目的MAC地址的LLID连接到下游帧,以发送给PON端口。 ONU之间的桥接可以通过使用反向LLID的洪泛功能进行。 它提供VLAN-LLID转换模式,支持ONU侧的VLAN Tag添加/删除。 它还为下游提供组播剪枝功能。
    • 28. 发明申请
    • Method of monitoring link performance and diagnosing active link state in ethernet passive optical network
    • 监控链路性能和诊断以太网无源光网络中主动链路状态的方法
    • US20060221841A1
    • 2006-10-05
    • US11286632
    • 2005-11-22
    • Ho LeeJee EunTae Whan YooBong Kim
    • Ho LeeJee EunTae Whan YooBong Kim
    • H04J3/14
    • H04L43/0811H04L43/0847H04L43/16
    • Provided is a method of monitoring link performance and diagnosing an active link state without interrupting traffic in an Ethernet passive optical network (EPON) while the link is in the active state. The method of monitoring link performance and diagnosing an active link state without interrupting data flow to logic links which are in active states in the EPON, includes: a) allowing an operator of the EPON to select a link performance monitoring function or a link active state diagnosing function; b-1) if the link performance monitoring function is selected, setting a monitoring cycle timer and periodically transmitting a performance information request frame from a local node to a remote node; b-2) if the remote node receives the performance information request frame, collecting corresponding link performance information and transmitting a response frame from the remote node to the local node in a format which is predetermined in accordance with a corresponding frame format; b-3) if the local node receives the response frame from the remote node, analyzing the performance information of the response frame and determining whether the link performance has deteriorated or if a failure has occurred in the local node; b-4) if the deterioration of the link function or the degree of the failure reaches a predetermined threshold, reporting to an upper layer that a failure has occurred.
    • 提供了一种在链路处于活动状态时监视链路性能和诊断活动链路状态而不中断以太网无源光网络(EPON)中的业务的方法。 监视链路性能和诊断活动链路状态而不中断到EPON中处于活动状态的逻辑链路的数据流的方法包括:a)允许EPON的运营商选择链路性能监视功能或链路活动状态 诊断功能; b-1)如果选择了链路性能监视功能,则设置监视周期定时器并且周期地从本地节点向远程节点发送性能信息请求帧; b-2)如果所述远程节点接收到所述性能信息请求帧,则收集对应的链路性能信息,并以根据对应的帧格式预定的格式从所述远程节点向所述本地节点发送响应帧; b-3)如果本地节点从远程节点接收到响应帧,分析响应帧的性能信息,确定链路性能是否恶化,或者本地节点是否发生故障; b-4)如果链路功能的劣化或故障程度达到预定阈值,则向上层报告发生故障。
    • 29. 发明授权
    • Multi-tone transceiver system using two steps of DMT-CMFB
    • 使用DMT-CMFB两步的多音调收发系统
    • US06690717B1
    • 2004-02-10
    • US09498917
    • 2000-02-04
    • Jung Hak KimTae Whan YooHoon LeeJeong Jin LeeJae Geun Kim
    • Jung Hak KimTae Whan YooHoon LeeJeong Jin LeeJae Geun Kim
    • H04L516
    • H04L5/023H04L27/2634H04L27/264H04L27/265H04M11/062
    • A wideband multi-tone transceiver system interoperable with Asymmetric Digital Subscriber Line (ADSL) transceiver system, and including a two-step transceiver system having a discrete multi-tone transceiver system and a cosine modulated filter bank (CMFB) transmultiplexer. The two-step transceiver system provides a physically transparent transmission channel to each sub-band signal by minimizing the interference between sub-bands regardless of the transmission channel characteristics. The two-step transceiver system is realized with a comparably simple structure, and the circuit size is drastically reduced by sharing the FFT function with other sub-channels with the maximal utilization of the high-speed circuit when realizing each sub-channel's DMT modulation and demodulation function.
    • 一种与非对称数字用户线(ADSL)收发器系统可互操作的宽带多音收发器系统,包括具有离散多音收发器系统和余弦调制滤波器组(CMFB)多路复用器的两步收发器系统。 两步收发器系统通过最小化子带之间的干扰而不管传输信道特性如何,为每个子带信号提供物理透明的传输信道。 两级收发器系统采用比较简单的结构实现,通过在实现每个子通道的DMT调制时与高速电路的最大利用率与其他子通道共享FFT功能,大大降低了电路尺寸, 解调功能。
    • 30. 发明授权
    • Time-domain equalizer of cascaded filters for VDSL
    • 用于VDSL的级联滤波器的时域均衡器
    • US06687291B1
    • 2004-02-03
    • US09498318
    • 2000-02-04
    • Hoon LeeTae Whan YooJung Hak KimJeong Jin Lee
    • Hoon LeeTae Whan YooJung Hak KimJeong Jin Lee
    • H03H730
    • H04L27/2647H04L25/03178
    • Method for designing TEQs(Time-domain Equalizers) for different signal bands in a VDSL transmission system, including the steps of dividing an entire signal band into at least two signal bands, and respectively modulating the divided signal bands before transmission at a transmitter, and applying respective transmitted signal bands to an algorithm that can reduce channel response lengths of the respective signal bands at a receiver, for obtaining respective TEQs, and connecting the TEQs in series, wherein an entire signal band is divided into a low frequency signal band and a high frequency signal band, with the low frequency signal band allocated smaller than the high frequency signal band, and preferably the low frequency signal band includes the signal band used in an ADSL, whereby reducing an amount of hardware and assuring an interchangeability with the ADSL transmission system.
    • 一种用于在VDSL传输系统中为不同信号频带设计TEQ(时域均衡器)的方法,包括以下步骤:将整个信号频带划分成至少两个信号频带,以及在发射机发射之前分别调制分频信号频带,以及 将各个发送的信号频带应用于可以减少接收机处的相应信号频带的信道响应长度的算法,以获得相应的TEQ,并串联连接TEQ,其中整个信号频带被划分为低频信号频带和 高频信号频带,其中低频信号频带被分配为小于高频信号频带,并且优选地,低频信号频带包括在ADSL中使用的信号频带,由此减少硬件量并确保与ADSL传输的互换性 系统。