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    • 1. 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。
    • 3. 发明授权
    • Apparatus and method for managing traffic using VID in EPON
    • EPON中使用VID管理流量的装置和方法
    • US07751410B2
    • 2010-07-06
    • US11635774
    • 2006-12-07
    • Hoon LeeTae Whan YooJung Hak KimYool KwonBong Tae Kim
    • Hoon LeeTae Whan YooJung Hak KimYool KwonBong Tae Kim
    • H04L12/46
    • H04L47/10H04L12/4645H04L12/66H04L47/20H04L61/103H04L61/6022
    • An apparatus and method for managing traffic using a VID in EPON are provided. The apparatus includes a MAC lookup table, a service classification policy table, a service control policy table, a MAC lookup unit, a first and second classification module, a VID learning unit and a first and second service control module. The apparatus classifies all packets of up/downlink transmission flow using a VID into a VID unit, through the first and second classification modules and manages traffic thereof according to the parameters thereof through the first and second service control modules. Accordingly, a large amount of traffic for numerous subscribers and services thereof, which was cannot be processed by the limitation on embodying a typical switch or router, can be processed according to the present invention.
    • 提供了一种用于使用EPON中的VID来管理业务的装置和方法。 该装置包括MAC查找表,服务分类策略表,服务控制策略表,MAC查找单元,第一和第二分类模块,VID学习单元和第一和第二服务控制模块。 该装置通过第一和第二分类模块,使用VID将上行/下行链路传输流的所有数据包分类为VID单元,并通过第一和第二服务控制模块根据其参数来管理其流量。 因此,根据本发明,可以处理不能通过实施典型交换机或路由器的限制来处理大量用户和其服务的大量业务。
    • 4. 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。
    • 5. 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。
    • 8. 再颁专利
    • Interleaving apparatus and method for orthogonal frequency division multiplexing transmitter
    • 正交频分复用发射机的交错装置和方法
    • USRE44848E1
    • 2014-04-15
    • US12774998
    • 2010-05-06
    • Jung Hak KimHun Sik KangDo Young Kim
    • Jung Hak KimHun Sik KangDo Young Kim
    • G11C19/00G11C8/00G06F12/00
    • G11C7/1042H04L27/2608
    • An interleaving apparatus and method for an OFDM transmitter are provided. The interleaving apparatus comprises a memory unit, a memory write/read control unit, a memory access address generation unit, and a second permutation and output selection unit. The memory unit includes a plurality of memory banks, which are capable of being independently controlled so that data can be written or read in/from the memory banks, each having memory cells arranged in an N×M matrix structure. The memory write/read control unit generates control signals to write/read data in/from the memory unit. The memory access address generation unit generates a memory access address used to write/read data in/from the memory unit in response to the memory write/read control signals. The second permutation and output selection unit rearranges the positions of data bits output from the memory unit and outputs the position-rearranged data bits.
    • 提供了一种用于OFDM发射机的交织装置和方法。 交织装置包括存储单元,存储器写入/读取控制单元,存储器访问地址生成单元和第二置换和输出选择单元。 存储单元包括多个存储体,其能够被独立地控制,使得数据可以从存储体中写入/读出,每个具有以N×M矩阵结构排列的存储单元。 存储器写入/读取控制单元产生用于在/从存储器单元写入/读取数据的控制信号。 存储器访问地址生成单元响应于存储器写入/读取控制信号生成用于向/从存储器单元写入/读取数据的存储器访问地址。 第二置换和输出选择单元重新排列从存储器单元输出的数据位的位置,并输出位置重新排列的数据位。
    • 10. 发明授权
    • Interleaving apparatus and method for orthogonal frequency division multiplexing transmitter
    • 正交频分复用发射机的交错装置和方法
    • US07370252B2
    • 2008-05-06
    • US11129125
    • 2005-05-12
    • Jung Hak KimHun Sik KangDo Young Kim
    • Jung Hak KimHun Sik KangDo Young Kim
    • G11C19/00G11C8/00G06F12/00
    • G11C7/1042H04L27/2608
    • An interleaving apparatus and method for an OFDM transmitter are provided. The interleaving apparatus comprises a memory unit, a memory write/read control unit, a memory access address generation unit, and a second permutation and output selection unit. The memory unit includes a plurality of memory banks, which are capable of being independently controlled so that data can be written or read in/from the memory banks, each having memory cells arranged in an N×M matrix structure. The memory write/read control unit generates control signals to write/read data in/from the memory unit. The memory access address generation unit generates a memory access address used to write/read data in/from the memory unit in response to the memory write/read control signals. The second permutation and output selection unit rearranges the positions of data bits output from the memory unit and outputs the position-rearranged data bits.
    • 提供了一种用于OFDM发射机的交织装置和方法。 交织装置包括存储单元,存储器写入/读取控制单元,存储器访问地址生成单元和第二置换和输出选择单元。 存储单元包括多个存储体,其能够被独立地控制,使得数据可以从存储体中写入/读出,每个存储体具有以N×M矩阵结构排列的存储单元。 存储器写入/读取控制单元产生用于在/从存储器单元写入/读取数据的控制信号。 存储器访问地址生成单元响应于存储器写入/读取控制信号生成用于向/从存储器单元写入/读取数据的存储器访问地址。 第二置换和输出选择单元重新排列从存储器单元输出的数据位的位置,并输出位置重新排列的数据位。