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    • 21. 发明授权
    • Dual mode decoder
    • 双模解码器
    • US07313751B2
    • 2007-12-25
    • US11231415
    • 2005-09-20
    • Sungsoo KangTae Whan YooHyeong Ho Lee
    • Sungsoo KangTae Whan YooHyeong Ho Lee
    • H03M13/00G06F11/00G08C25/00H04L1/00
    • H03M5/02H03M5/145H03M7/04
    • A dual mode decoder which includes an MB810 decoder; an 8B/10B decoder; a mode detection unit, a first low pass filter; a second low pass filter; an IDLE code detection unit which detects IDLE code and transfers to the mode detection unit; a first switch unit which selectively outputs the 10-bit code input from the first low pass filter and the second low pass filter; a parallel conversion unit which outputs a 10-bit parallel code; a first selection unit which provides the 10-bit parallel code to the decoder determined as the operation decoder between the MB810 decoder and the 8B/10B decoder; and a second selection unit which selectively outputs an 8-bit code corresponding to the 10-bit parallel code input form the decoder determined as the operation decoder.
    • 一种双模式解码器,包括一个MB810解码器; 一个8B / 10B解码器; 模式检测单元,第一低通滤波器; 第二低通滤波器; IDLE码检测单元,其检测IDLE码并传送到模式检测单元; 第一开关单元,其选择性地输出从第一低通滤波器和第二低通滤波器输入的10位代码; 并行转换单元,其输出10位并行代码; 第一选择单元,其将10位并行码提供给被确定为MB810解码器和8B / 10B解码器之间的操作解码器的解码器; 以及第二选择单元,其从被确定为操作解码器的解码器选择性地输出与10位并行代码输入相对应的8位代码。
    • 22. 发明授权
    • Apparatus for and method of generating pointers for transfer of structured data in AAL1
    • 用于生成用于在AAL1中传输结构化数据的指针的装置和方法
    • US07224694B2
    • 2007-05-29
    • US10251129
    • 2002-09-20
    • Ho Yong KangJe Soo KoTae Whan Yoo
    • Ho Yong KangJe Soo KoTae Whan Yoo
    • H04L12/28
    • H04L12/5601H04L2012/5616H04L2012/5654
    • An apparatus for and a method of generating pointers for identifying structure boundaries of data for leased lines such as T1/E1 in an asynchronous transfer mode (ATM) adaptation layer Type 1 (AAL1) through an ATM layer. The apparatus includes a control signal generating unit for receiving a sequence number signal and a start signal, thereby generating enable signals and control signals, a next-cycle boundary generating unit for generating a next-cycle boundary value, using a pointer value and a “Pointer_P” value adapted to store a sequence of ATM cells, a modulo calculating unit for calculating a modulo obtained by dividing the next-cycle boundary value received from the next-cycle boundary generating unit by an externally-received block size value, a current-cycle boundary generating unit for generating a current-cycle boundary value, using the next-cycle boundary value received from the next-cycle boundary generating unit, the modulo received from the modulo calculating unit, and the block size value; and the pointer calculating unit for generating a pointer value for determination of structure boundaries and a “Pointer_P” value, to be supplied to the next-cycle boundary generating unit, based on the current-cycle boundary value received from the current-cycle boundary generating unit.
    • 一种生成用于通过ATM层在异步传输模式(ATM)适配层类型1(AAL1)中识别诸如T1 / E1的租用线路的数据结构边界的装置和方法。 该装置包括:控制信号产生单元,用于接收序列号信号和起始信号,从而产生使能信号和控制信号;下一个周期边界产生单元,用于产生下一周期边界值;使用指针值和“ Pointer_P“值,用于计算通过将从下一周期边界产生单元接收的下一个周期边界值除以外部接收的块大小值获得的模的模计算单元,模数计算单元, 循环边界产生单元,用于使用从下一周期边界产生单元接收的下一周期边界值,从模数计算单元接收的模数和块大小值来生成当前周期边界值; 以及指针计算单元,用于基于从当前周期边界生成接收到的当前周期边界值,生成用于确定结构边界的指针值和“Pointer_P”值,以提供给下一周期边界生成单元 单元。
    • 25. 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。
    • 26. 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。
    • 27. 发明授权
    • Apparatus for executing multi-point control protocol in Ethernet passive optical network
    • 以太网无源光网络中执行多点控制协议的设备
    • US07301970B2
    • 2007-11-27
    • US10629889
    • 2003-07-29
    • Chan KimHo Sook LeeTae Whan YooHyeong Ho Lee
    • Chan KimHo Sook LeeTae Whan YooHyeong Ho Lee
    • H04J3/04
    • H04Q11/0067H04Q11/0066H04Q2011/0064
    • A MAC master apparatus for executing a multi-point control protocol (MPCP) data in an optical line termination (OLT) of an Ethernet passive optical network (PON) is provided. The MPCP master apparatus includes a CPU interface unit, two or more memory arbitration control units, a SGA table memory, a RTT table memory, a static grant generation unit, a dynamic grant generation unit, a static grant queue, a dynamic grant queue, a sending message queue, a sending multiplexing unit, a time setting unit, a receiving window generation unit, an upstream grant queue, a received demultiplexing unit, a report queue and a received message queue. Therefore, any frame, including MPCP frames from/to the CPU can be sent or received, and a grant can be allocated statically according to a setting or dynamically according to a report from the ONUs.
    • 提供了一种用于在以太网无源光网络(PON)的光线路终端(OLT)中执行多点控制协议(MPCP)数据的MAC主设备。 MPCP主设备包括CPU接口单元,两个或多个存储器仲裁控制单元,SGA表存储器,RTT表存储器,静态授权生成单元,动态授权生成单元,静态授权队列,动态授权队列, 发送消息队列,发送多路复用单元,时间设定单元,接收窗口生成单元,上游准许队列,接收解复用单元,报告队列和接收到的消息队列。 因此,可以发送或接收包括来自/到CPU的MPCP帧的任何帧,并且可以根据设置或动态地根据来自ONU的报告来静态地分配许可。
    • 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。