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1. 发明授权

US07539424B2 Burst mode optical receiver for maintaining constant signal amplitude 有权
标题翻译：突发模式光接收机用于保持恒定的信号幅度
公开(公告)号：US07539424B2
公开(公告)日：2009-05-26
申请号：US10696142
申请日：2003-10-28
申请人： Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee , Ja Won Seo
发明人： Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee , Ja Won Seo
IPC分类号： H04B10/06
CPC分类号： H04B10/6931
摘要： Provided is a burst mode optical receiver capable of accurately detecting an optical signal of minimum amplitude, by automatically controlling a gain of a pre-amplifier according to an amplitude of an input optical signal. The burst mode optical receiver can automatically control a gain of a pre-amplifier according to the amplitude of an input optical signal using an output signal of a first peak detector. In other words, when the input optical signal has a small amplitude that meets the receiving sensitivity of the burst mode optical receiver, the gain of the pre-amplifier automatically increases, thereby improving the receiving sensitivity of the burst mode optical receiver.
摘要翻译：提供了能够通过根据输入光信号的幅度自动控制前置放大器的增益来精确地检测最小幅度的光信号的突发模式光接收机。突发模式光接收机可以使用第一峰值检测器的输出信号根据输入光信号的幅度自动控制前置放大器的增益。换句话说，当输入光信号具有满足突发模式光接收机的接收灵敏度的小幅度时，前置放大器的增益自动增加，从而提高突发模式光接收机的接收灵敏度。

2. 发明授权

US07379676B2 Communication apparatus in Ethernet passive optical network 有权
标题翻译：以太网无源光网络中的通信设备
公开(公告)号：US07379676B2
公开(公告)日：2008-05-27
申请号：US10724554
申请日：2003-11-25
申请人： Ho Yong Kang , Tae Whan Yoo , Hyeong Ho Lee
发明人： Ho Yong Kang , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H04B10/00
CPC分类号： H04Q11/0067 , H04L47/2433 , H04L47/31 , H04L47/50 , H04Q11/0066 , H04Q11/0071 , H04Q2011/0064
摘要： Provided is a communication apparatus in a PON bridge sublayer, which supports point-to-point communications between optical network units (ONU) in an Ethernet passive optical network (EPON). To support point-to-point communications between ONUs in the EPON, the communication apparatus in the PON bridge sublayer includes a second processing portion, a second input queue, a second lookup and learning portion, a second output queue, a first input queue, a first lookup and learning portion, a filtering database table a VLAN ID table, a table control portion, a first output queue, and a first processing portion.
摘要翻译：提供了一种支持以太网无源光网络（EPON）中的光网络单元（ONU）之间的点对点通信的PON桥接子层中的通信装置。为了支持EPON中的ONU之间的点对点通信，PON桥接子层中的通信装置包括第二处理部分，第二输入队列，第二查找和学习部分，第二输出队列，第一输入队列，第一查找和学习部分，过滤数据库表，VLAN ID表，表控制部分，第一输出队列和第一处理部分。

3. 发明授权

US07369781B2 Burst mode optical receiver considering characteristic of extinction ratio of received optical signal 失效
标题翻译：考虑接收光信号消光比特性的突发模式光接收机
公开(公告)号：US07369781B2
公开(公告)日：2008-05-06
申请号：US10705100
申请日：2003-11-10
申请人： Ja Won Seo , Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee
发明人： Ja Won Seo , Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee
IPC分类号： H04B10/06 , H03G3/30
CPC分类号： H04B10/693
摘要： Provided is a burst mode optical receiver considering a characteristic of an extinction ratio of a received optical signal is provided. By using a peak detector considering a characteristic of an extinction ratio, top and bottom peak voltages of actual burst packets can be precisely detected while not being affected by a DC offset corresponding to an extinction ratio even though burst packets having a DC offset corresponding to the extinction ratio are received. Accordingly, waveform distortion of a signal output from the burst mode optical receiver can be minimized.
摘要翻译：提供了考虑接收光信号的消光比特性的突发模式光接收机。通过使用考虑到消光比特性的峰值检测器，可以精确地检测实际脉冲串分组的顶部和底部峰值电压，而不受与消光比相对应的DC偏移的影响，即使具有对应于接收消光比。因此，可以使从突发模式光接收器输出的信号的波形失真最小化。

4. 发明授权

US07581155B2 Apparatus for FEC supporting transmission of variable-length frames in TDMA system and method of using the same 失效
标题翻译：用于支持TDMA系统中可变长度帧的传输的FEC的装置及其使用方法
公开(公告)号：US07581155B2
公开(公告)日：2009-08-25
申请号：US11004401
申请日：2004-12-03
申请人： Hoon Lee , Tae Whan Yoo , Hyeong Ho Lee
发明人： Hoon Lee , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H03M13/00
CPC分类号： H03M13/251 , H03M13/1515 , H03M13/25 , H04L1/0041 , H04L1/0057 , H04L1/0084
摘要： An apparatus for transmitting a FEC frame is provided. In order to correct an error caused by a transmission medium using FEC in a Reed-Solomon code type, FEC encoding/decoding of a frame is performed. A total transmission delay time is not influenced when FEC is bypassed, a delay caused by a shortened codeword is minimized, and a FEC encoding/decoding delays for frames having different lengths are equalized.
摘要翻译：提供了一种用于发送FEC帧的装置。为了校正利用Reed-Solomon码类型的使用FEC的传输介质引起的错误，执行帧的FEC编码/解码。当FEC被旁路时，总传输延迟时间不受影响，由缩短的码字引起的延迟最小化，并且对具有不同长度的帧进行FEC编码/解码延迟相等。

5. 发明授权

US07301970B2 Apparatus for executing multi-point control protocol in Ethernet passive optical network 失效
标题翻译：以太网无源光网络中执行多点控制协议的设备
公开(公告)号：US07301970B2
公开(公告)日：2007-11-27
申请号：US10629889
申请日：2003-07-29
申请人： Chan Kim , Ho Sook Lee , Tae Whan Yoo , Hyeong Ho Lee
发明人： Chan Kim , Ho Sook Lee , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H04J3/04
CPC分类号： H04Q11/0067 , H04Q11/0066 , H04Q2011/0064
摘要： 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.
摘要翻译：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。

6. 发明授权

US07290202B2 MB810 encoder/decoder, dual mode encoder/decoder, and MB810 code generating method 失效
标题翻译： MB810编码器/解码器，双模式编码器/解码器和MB810代码生成方法
公开(公告)号：US07290202B2
公开(公告)日：2007-10-30
申请号：US10848944
申请日：2004-05-19
申请人： Sungsoo Kang , Tae Whan Yoo , Hyeong Ho Lee
发明人： Sungsoo Kang , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H03M13/00 , G06F11/00 , G08C25/00 , H04L1/00
CPC分类号： H03M5/02 , H03M5/145 , H03M7/04
摘要： An MB810 encoder and/or decoder, dual mode encoder and/or decoder, and a method for generating MB810 codes are provided. Twelve state points in the form of a 4×3 matrix on a state transition map are formed with binary unit digital sum variation & alternate sum variation (BUDA). A 10-bit code from 8-bit data is generated outputting a 10-bit code from a predetermined state point to form the matrix. Codes forming a complementary pair from a set of codes capable of arriving at state points forming the matrix are selected. Codes forming the 12 state points by supplementing state points lacked in the codes forming a complementary pair are selected. Control codes including IDLE code from the codes forming the 12 state points are selected. Codes generating the IDLE code by a bit string between neighboring codes among the codes forming the 12 state points are removed.
摘要翻译：提供了一种MB810编码器和/或解码器，双模式编码器和/或解码器，以及用于生成MB810代码的方法。状态转换图上4x3矩阵形式的12个状态点由二进制单位数字和变化和交替和变化（BUDA）形成。生成来自8位数据的10位代码，从预定状态点输出10位代码以形成矩阵。选择从能够到达形成矩阵的状态点的一组代码形成互补对的代码。选择通过补充形成互补对的代码中缺少的状态点来形成12个状态点的代码。选择包含形成12个状态点的代码的IDLE代码的控制代码。在形成12个状态点的代码中，通过相邻代码之间的位串产生IDLE代码的代码被去除。

7. 发明授权

US07313751B2 Dual mode decoder 失效
标题翻译：双模解码器
公开(公告)号：US07313751B2
公开(公告)日：2007-12-25
申请号：US11231415
申请日：2005-09-20
申请人： Sungsoo Kang , Tae Whan Yoo , Hyeong Ho Lee
发明人： Sungsoo Kang , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H03M13/00 , G06F11/00 , G08C25/00 , H04L1/00
CPC分类号： H03M5/02 , H03M5/145 , H03M7/04
摘要： 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.
摘要翻译：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。

8. 发明授权

US07274695B2 Method and apparatus for processing ethernet data frame in media access control (MAC) sublayer of ethernet passive optical network (PON) 有权
标题翻译：以太网无源光网络（PON）的媒体访问控制（MAC）子层中处理以太网数据帧的方法和装置
公开(公告)号：US07274695B2
公开(公告)日：2007-09-25
申请号：US10646062
申请日：2003-08-22
申请人： Seung Hwan Kim , Tae Whan Yoo , Hyeong Ho Lee
发明人： Seung Hwan Kim , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H04L12/28 , H04J3/16 , H04J3/24
CPC分类号： H04L1/0061 , H04L1/0072 , H04L69/08 , H04L69/32 , H04Q11/0066 , H04Q11/0067 , H04Q11/0071 , H04Q2011/0064
摘要： A method and apparatus for processing Ethernet data frames in a media access control (MAC) sublayer of an Ethernet passive optical network (PON) are provided. The apparatus for processing protocol layers of an Ethernet passive optical network (PON) includes: an Emulation sublayer processing unit which performs cyclic redundancy check (CRC) on information included in a preamble of an Ethernet data frame transferred from a physical layer processing unit, and extracts LLIDs from the preamble; a MAC sublayer processing unit, which has one MAC address corresponding to multiple LLID indexes corresponding to the extracted LLIDs, to perform control and management; a MAC control sublayer processing unit which contains information of the multiple LLID indexes, and performs MAC control on each LLID index; a PON bridge sublayer processing unit which performs a bridge function of the Ethernet PON and tag management of the Ethernet PON; and an Emulated-MAC sublayer processing unit which performs upstream and downstream Ethernet data frame matching, FCS error checking, and PAUSE frame processing. Therefore, an effect exists in that when processing the Ethernet frames, an interface suited to the Ethernet PON system is provided.
摘要翻译：提供了一种用于处理以太网无源光网络（PON）的媒体访问控制（MAC）子层中的以太网数据帧的方法和装置。用于处理以太网无源光网络（PON）的协议层的装置包括：仿真子层处理单元，对从物理层处理单元传送的以太网数据帧的前导码中包括的信息执行循环冗余校验（CRC），以及从前导码中提取LLID; MAC子层处理单元，其具有对应于与所提取的LLID相对应的多个LLID索引的一个MAC地址，以执行控制和管理; MAC控制子层处理单元，其包含多个LLID索引的信息，并对每个LLID索引执行MAC控制; 执行以太网PON的桥接功能和以太网PON的标签管理的PON桥接子层处理单元; 以及执行上游和下游以太网数据帧匹配，FCS错误检查和暂停帧处理的仿真MAC子层处理单元。因此，在处理以太网帧时，提供了适用于以太网PON系统的接口。

9. 发明授权

US07600171B2 Method of controlling FEC in EPON 有权
标题翻译：在EPON中控制FEC的方法
公开(公告)号：US07600171B2
公开(公告)日：2009-10-06
申请号：US11005115
申请日：2004-12-04
申请人： Hoon Lee , Tae Whan Yoo , Hyeong Ho Lee
发明人： Hoon Lee , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： G06F11/00 , H03M13/00 , G01R31/08 , H04J3/16
CPC分类号： H04L1/0009 , H04L1/0057 , H04L1/203 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0079 , H04Q2011/0088
摘要： A method of controlling a Forward Error Correction (FEC) operation including: configuring a FEC frame to be transmitted between an OLT and an ONU comprising a FEC frame identifier indicating whether FEC should be performed, data, a first flag indicating that FEC should be performed, and a second flag indicating that the FEC frame is to be FEC encoded; initializing the OLT by disabling a FEC function; determining whether the ONU requires FEC to be performed based on a FEC frame identifier received from the ONU; IPG stretching the FEC frame when the ONU requires to FEC to be performed; and transmitting the FEC frame to the ONU after FEC encoding based on the second flag of an input frame to a PCS sublayer from an upper layer. The method controls an effective operation of a FEC of an ONU and an OLT without changing a Round Trip Time (RTT) according to optical link quality in an EPON. Accordingly, FEC is used only if necessary, thereby simplifying the managing of a link, and preventing an excessive 35% reduction of throughput caused by use of unnecessary FEC.
摘要翻译：一种控制前向纠错（FEC）操作的方法，包括：配置要在OLT和ONU之间传输的FEC帧，包括指示是否应执行FEC的FEC帧标识符，数据，指示应执行FEC的第一标志以及指示FEC帧要被FEC编码的第二标志; 通过禁用FEC功能来初始化OLT; 基于从ONU接收到的FEC帧标识来确定ONU是否需要执行FEC; 当ONU需要执行FEC时，IPG扩展FEC帧; 并且基于来自上层的PCS子层的基于输入帧的第二标志的FEC编码之后将FEC帧发送到ONU。该方法根据EPON中的光链路质量来控制ONU和OLT的FEC的有效操作，而不改变往返时间（RTT）。因此，仅在必要时使用FEC，从而简化链路的管理，并且防止由于使用不必要的FEC导致的吞吐量的过度的35％的降低。

10. 发明授权

US07599353B2 Ethernet switch, and apparatus and method for expanding port 有权
标题翻译：以太网交换机，扩展端口的设备和方法
公开(公告)号：US07599353B2
公开(公告)日：2009-10-06
申请号：US10739737
申请日：2003-12-17
申请人： Chan Kim , Tae Whan Yoo , Hyeong Ho Lee
发明人： Chan Kim , Tae Whan Yoo , Hyeong Ho Lee
IPC分类号： H04L12/66
CPC分类号： H04L49/45 , H04L49/351
摘要： An Ethernet switch having a function of expanding a port, apparatus and method for expanding a port are provided. A receiver receives a frame including predetermined port identification information. An information detector detects the predetermined port identification information and a terminal address of a terminal connected to a sub port corresponding to the predetermined port identification information. A storage unit stores an address table including the terminal address and the predetermined port identification information. A reader reads port identification information corresponding to a destination address included in the frame from the address table. A frame transformer adds the read port identification information to the frame. An output unit outputs the frame transformed by the frame transformer to a main port connected to a sub port corresponding to the read port identification information among main ports that can be connected to at least one sub port.
摘要翻译：提供具有扩展用于扩展端口的端口，装置和方法的功能的以太网交换机。接收机接收包括预定端口识别信息的帧。信息检测器检测预定端口识别信息和连接到与预定端口识别信息对应的子端口的终端的终端地址。存储单元存储包括终端地址和预定端口识别信息的地址表。读取器从地址表读取与帧中包括的目的地地址对应的端口识别信息。帧转换器将读端口识别信息添加到帧。输出单元将帧变换器变换后的帧输出到与能够与至少一个子端口连接的主端口中对应于读端口识别信息的子端口连接的主端口。

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