公开(公告)号：US6104326A

公开(公告)日：2000-08-15

申请号：US136734

申请日：1998-08-19

Applicant: Bhum Cheol Lee ,  Eun Chang Choi ,  Kwon Chul Park

Inventor： Bhum Cheol Lee ,  Eun Chang Choi ,  Kwon Chul Park

IPC: H03L7/00 ,  H03B27/00 ,  H03M5/06

CPC classification number: H03L7/0805 ,  H03L7/0995 ,  H04L7/0276 ,  H04L7/033

Abstract: An apparatus for recovering high speed NRZ (non-return to zero) data is disclosed. A phase-locked loop (PLL) frequency-divides the frequency which is outputted from a voltage-controlled ring oscillator, and therefore, the physical limit of the PLL is not affected. The voltage-controlled ring oscillators are installed separately from the PLL, and the voltage-controlled ring oscillators are synchronized with the PLL in the frequency only. Further, the oscillators are phase-locked to the incoming NRZ data, and two voltage-controlled ring oscillators are enabled/disabled by the binary values of the NRZ data. Therefore, a bit synchronization is realized, and thus, the voltage-controlled ring oscillators are directly controlled by the NRZ data. Consequently, the NRZ data can be recovered up to the frequency band at which the voltage-controlled ring oscillators and a D flip flop operate.

Abstract translation: 公开了一种用于恢复高速NRZ（不归零）数据的装置。 锁相环（PLL）频率分频从压控环形振荡器输出的频率，因此PLL的物理极限不受影响。 压控环形振荡器与PLL分开安装，压控环形振荡器仅与频率同步。 此外，振荡器被锁相到进入的NRZ数据，并且两个压控环形振荡器由NRZ数据的二进制值启用/禁用。 因此，实现位同步，因此，电压控制的环形振荡器由NRZ数据直接控制。 因此，NRZ数据可以恢复到压控环形振荡器和D触发器工作的频带。

公开(公告)号：US20120161834A1

公开(公告)日：2012-06-28

申请号：US13335596

申请日：2011-12-22

Applicant: Seung Woo LEE ,  Kwang Chun CHOI ,  Woo Young CHOI ,  Bhum Cheol LEE

Inventor： Seung Woo LEE ,  Kwang Chun CHOI ,  Woo Young CHOI ,  Bhum Cheol LEE

IPC: H03L7/08

CPC classification number: H03L1/00 ,  H03L7/093 ,  H03L7/0998 ,  H03L2207/06 ,  H03L2207/50

Abstract: Disclosed are a phase locked loop (PLL) of a digital scheme and a method thereof. More specifically, disclosed are a digital phase locked loop having a time-to-digital converter (TDC), a digital loop filter (DLF), and a digitally controlled oscillator (DCO), and that is designed to have a constant jitter characteristic at all times even though an operating condition of a circuit varies according to a process, voltage, temperature (PVT) change, and a method thereof.

Abstract translation: 公开了数字方案的锁相环（PLL）及其方法。 更具体地，公开了具有时间 - 数字转换器（TDC），数字环路滤波器（DLF）和数字控制振荡器（DCO）的数字锁相环，并且被设计为具有恒定的抖动特性 即使电路的工作状态根据工艺，电压，温度（PVT）变化而变化，也是其方法。

公开(公告)号：US07751330B2

公开(公告)日：2010-07-06

申请号：US12079046

申请日：2008-03-24

Applicant: Bhum-cheol Lee ,  Jung-hee Lee ,  Hyun-yong Hwang ,  Dae-geun Park ,  Seung-woo Lee ,  Young-ho Park ,  Kyung-pyo Jun ,  Young-sun Kim

Inventor： Bhum-cheol Lee ,  Jung-hee Lee ,  Hyun-yong Hwang ,  Dae-geun Park ,  Seung-woo Lee ,  Young-ho Park ,  Kyung-pyo Jun ,  Young-sun Kim

IPC: H04L1/00

CPC classification number: H04L47/10 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/31 ,  H04L47/32

Abstract: Provided are a method and apparatus for dynamically managing hierarchical flows that more efficiently process packet traffic while maintaining compatibility with an existing packet data network in transferring both circuit traffic and packet traffic in a packet switched network. The method for dynamically managing hierarchical flows includes: receiving data packets, classifying the data packets according to attributes of the received data packets, and producing first flows; determining whether traffic of each of the first flows exceeds a predetermined bandwidth limit, and performing a packet drop process or producing second flows for first flows that exceed the bandwidth limit, according to a flow-specific policy; and performing second flow processing on the second flows according to a second flow policy. Only flows exceeding the bandwidth limit or causing congestion are hierarchically divided for management. This makes it possible to finely manage the flows without complex operations.

Abstract translation: 提供了一种用于动态管理分层流的方法和装置，其更有效地处理分组业务，同时保持与现有分组数据网络的兼容性，以在分组交换网络中传送电路业务和分组业务。 动态管理分层流的方法包括：接收数据包，根据接收到的数据包的属性对数据包进行分类，并产生第一个流; 确定每个第一流的流量是否超过预定带宽限制，并且根据流特定策略执行分组丢弃处理或产生超过带宽限制的第一流的第二流; 以及根据第二流策略对所述第二流执行第二流处理。 只有超过带宽限制或引起拥塞的流量才被分层划分以进行管理。 这使得可以在没有复杂操作的情况下精细地管理流。

公开(公告)号：US20090086764A1

公开(公告)日：2009-04-02

申请号：US12156163

申请日：2008-05-29

Applicant: Seung-woo Lee ,  Bhum-cheol Lee ,  Young-ho Park ,  Jung-hee Lee ,  Dae-geun Park ,  Hyun-yong Hwang

Inventor： Seung-woo Lee ,  Bhum-cheol Lee ,  Young-ho Park ,  Jung-hee Lee ,  Dae-geun Park ,  Hyun-yong Hwang

IPC: H04J3/06

CPC classification number: H04J3/0667 ,  H04L69/28

Abstract: A system and method for time synchronization on a network is provided. According to the system and method for time synchronization, a slave clock device does not continuously receive a time synchronization message periodically transferred from a master clock device and thus does not correct its time upon all such occasions. Rather, the slave clock device requests time information from the master clock device only when the slave clock device needs to correct its time, and receives a time synchronization message transferred from the master clock device and compensates for its time deviation only while the slave clock device is activated, thereby reducing its power consumption and amount of computation.

Abstract translation: 提供了一种用于网络上的时间同步的系统和方法。 根据用于时间同步的系统和方法，从时钟装置不连续地接收从主时钟装置周期性地传送的时间同步消息，因此在所有这些场合都不能校正其时间。 相反，从时钟设备仅在从时钟设备需要校正其时间时才从主时钟设备请求时间信息，并且接收从主时钟设备传送的时间同步消息，并且仅在从时钟设备 被激活，从而降低其功耗和计算量。

公开(公告)号：US20090040929A1

公开(公告)日：2009-02-12

申请号：US12079046

申请日：2008-03-24

Applicant: Bhum-cheol Lee ,  Jung-hee Lee ,  Hyun-yong Hwang ,  Dae-geun Park ,  Seung-woo Lee ,  Young-ho Park ,  Kyung-pyo Jun ,  Young-sun Kim

Inventor： Bhum-cheol Lee ,  Jung-hee Lee ,  Hyun-yong Hwang ,  Dae-geun Park ,  Seung-woo Lee ,  Young-ho Park ,  Kyung-pyo Jun ,  Young-sun Kim

IPC: H04L12/56

CPC classification number: H04L47/10 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/31 ,  H04L47/32

Abstract: Provided are a method and apparatus for dynamically managing hierarchical flows that more efficiently process packet traffic while maintaining compatibility with an existing packet data network in transferring both circuit traffic and packet traffic in a packet switched network. The method for dynamically managing hierarchical flows includes: receiving data packets, classifying the data packets according to attributes of the received data packets, and producing first flows; determining whether traffic of each of the first flows exceeds a predetermined bandwidth limit, and performing a packet drop process or producing second flows for first flows that exceed the bandwidth limit, according to a flow-specific policy; and performing second flow processing on the second flows according to a second flow policy. Only flows exceeding the bandwidth limit or causing congestion are hierarchically divided for management. This makes it possible to finely manage the flows without complex operations.

Abstract translation: 提供了一种用于动态管理分层流的方法和装置，其更有效地处理分组业务，同时保持与现有分组数据网络的兼容性，以在分组交换网络中传送电路业务和分组业务。 动态管理分层流的方法包括：接收数据包，根据接收到的数据包的属性对数据包进行分类，并产生第一个流; 确定每个第一流的流量是否超过预定带宽限制，并且根据流特定策略执行分组丢弃处理或产生超过带宽限制的第一流的第二流; 以及根据第二流策略对所述第二流执行第二流处理。 只有超过带宽限制或引起拥塞的流量才被分层划分以进行管理。 这使得可以在没有复杂操作的情况下精细地管理流。

公开(公告)号：US07313197B2

公开(公告)日：2007-12-25

申请号：US10855258

申请日：2004-05-26

Applicant: Tae Sik Cheung ,  Jae Wook Lee ,  Woo Young Choi ,  Bhum Cheol Lee ,  Bong Tae Kim ,  Jong Hyun Lee

Inventor： Tae Sik Cheung ,  Jae Wook Lee ,  Woo Young Choi ,  Bhum Cheol Lee ,  Bong Tae Kim ,  Jong Hyun Lee

IPC: H04L25/49

CPC classification number: H04L25/03343

Abstract: Provided are a data transceiver and method for performing equalization and pre-emphasis adaptive to the transmission characteristic of a transmitting part. The transceiver measures the signal attenuation characteristic of a transmission line of a receiving part using an input data signal input via the transmission line of the receiving part, decodes the distorted waveform of the input data signal, distorts the waveform of an output data signal beforehand using the measured signal attenuation characteristic of the transmission line of the receiving part, and transmits the output data signal via a transmission line of a transmitting part. Thus, when the output data signal is transmitted via the transmission line of the transmitting part, the waveform of the signal remains optimized.

Abstract translation: 提供了一种用于执行自适应发送部分的传输特性的均衡和预加重的数据收发器和方法。 收发器使用经由接收部分的传输线输入的输入数据信号来测量接收部分的传输线的信号衰减特性，解码输入数据信号的失真波形，预先使用输出数据信号的波形扭曲 接收部分的传输线的测量信号衰减特性，并通过发送部分的传输线发送输出数据信号。 因此，当经由发送部的传输线发送输出数据信号时，信号的波形保持最优化。

公开(公告)号：US5940018A

公开(公告)日：1999-08-17

申请号：US941214

申请日：1997-09-30

Applicant: Jin-Young Kim ,  Bhum-Cheol Lee ,  Kwon-Chul Park

Inventor： Jin-Young Kim ,  Bhum-Cheol Lee ,  Kwon-Chul Park

IPC: H03M7/14 ,  H03M5/08 ,  H03M13/11 ,  H03M13/31 ,  H04B3/04 ,  H04L7/00 ,  H03M13/00

CPC classification number: H03M13/63 ,  H03M13/11 ,  H03M13/31 ,  H03M5/08

Abstract: An nB2P coding/decoding device having a line code function facilitating data transmission and data recovery in the transmission line or link, and a function of a channel code for detecting errors in the recovered data, is provided, including: an nB2P coding device for dividing n bit width parallel data into two data units each having a predetermined bit width, and serial-transmitting the resulting n+2 bit coded data to which two odd parity bits are added, with predetermined n+2 bit with block synchronization data which is orthogonal to the coded data; and an nB2P decoding device for detecting the block synchronization data from the serially transmitted data, converts serial data to parallel form of n+2 bits, checking for errors in the coded data using the odd parity, and removing the odd parity to decode them into the original n bit width parallel data.

Abstract translation: 一种具有促进传输线或链路中的数据传输和数据恢复的线路代码功能的nB2P编码/解码装置，以及用于检测恢复数据中的错误的信道码的功能，包括：nB2P编码装置，用于分割 将n位宽的并行数据分割成具有预定位宽的两个数据单元，并且将具有两个奇校验位的所生成的n + 2位编码数据与预定的n + 2位串联发送，其中正交的块同步数据 到编码数据; 以及用于从串行发送数据检测块同步数据的nB2P解码装置，将串行数据转换成n + 2位的并行形式，使用奇校验检查编码数据中的错误，并且去除奇校验以将其解码为 原始n位宽的并行数据。

公开(公告)号：US08532241B2

公开(公告)日：2013-09-10

申请号：US12774866

申请日：2010-05-06

Applicant: Seung-woo Lee ,  Jung-hee Lee ,  Bhum-cheol Lee

Inventor： Seung-woo Lee ,  Jung-hee Lee ,  Bhum-cheol Lee

IPC: H04L7/00

CPC classification number: H03L7/093 ,  G04C11/04 ,  H03L7/099 ,  H04J3/0667

Abstract: A parallel processing-based time synchronization apparatus employs a double-filter structure based on parallel processing, providing more precise and reliable time synchronization between a master device and a slave device. A first filter is implemented as hardware so as to realize time synchronization despite cyclic synchronization message transmission at short intervals and the second filter is implemented as software so as to realize precise time synchronization.

Abstract translation: 基于并行处理的时间同步装置采用基于并行处理的双重滤波器结构，在主设备和从设备之间提供更精确和可靠的时间同步。 第一滤波器实现为硬件，以便尽可能短时间地进行循环同步消息传输而实现时间同步，并且第二滤波器被实现为软件，以便实现精确的时间同步。

公开(公告)号：US20120124212A1

公开(公告)日：2012-05-17

申请号：US13298746

申请日：2011-11-17

Applicant: Dong-Myoung BAEK ,  Kang-Il CHOI ,  Bhum-Cheol LEE ,  Jung-Hee LEE ,  Sang-Yoon OH ,  Seung-Woo LEE ,  Young-Ho PARK

Inventor： Dong-Myoung BAEK ,  Kang-Il CHOI ,  Bhum-Cheol LEE ,  Jung-Hee LEE ,  Sang-Yoon OH ,  Seung-Woo LEE ,  Young-Ho PARK

IPC: G06F15/173

CPC classification number: H04L47/18 ,  G06F9/5027

Abstract: A multi-layer data processing apparatus and method are provided. The multi-layer data processing apparatus includes a lower hierarchy processing unit configured to generate at least one lower hierarchy flow from input data using lower hierarchy information, and to allocate the generated lower hierarchy flows to a plurality of lower hierarchy processors to perform lower hierarchy processing in respect of the lower hierarchy flows in parallel; and a higher hierarchy processing unit configured to generate at least one higher hierarchy flow from data transmitted from the lower hierarchy processing unit using higher hierarchy information, and to allocate the generated higher hierarchy flows to a plurality of higher hierarchy processors to perform higher hierarchy processing in parallel in respect of the higher hierarchy flows.

Abstract translation: 提供了一种多层数据处理装置和方法。 多层数据处理装置包括：下层处理单元，被配置为使用下层信息从输入数据生成至少一个下层流，并且将生成的下层流分配给多个下层处理器以执行较低层次处理 关于较低层次的流动并行; 以及更高级别处理单元，被配置为使用更高层次信息从下层处理单元发送的数据生成至少一个较高层级流，并且将生成的较高层级流分配给多个较高层次的处理器以执行较高层级处理 在较高等级流程上是平行的。

公开(公告)号：US07990966B2

公开(公告)日：2011-08-02

申请号：US11302604

申请日：2005-12-13

Applicant: Dae-Geun Park ,  Bhum-Cheol Lee

Inventor： Dae-Geun Park ,  Bhum-Cheol Lee

IPC: H04L12/28 ,  H04L12/56 ,  H04J3/24 ,  G06F15/173

CPC classification number: H04L29/12009 ,  H04L29/12584 ,  H04L29/12839 ,  H04L61/2596 ,  H04L61/6022

Abstract: Provided is an apparatus for changing Media Access Control (MAC) address, which is a conventional subscriber hardware identification address for identifying each subscriber, and a method thereof. The MAC address changing apparatus includes a frame receiving block for determining whether to change a source MAC address; a switch controlling block for controlling a switch; a change MAC address generating block for changing the source MAC address of the received frame; a change MAC address storing block for storing information of the change MAC address and the source MAC address corresponding thereto; a MAC address forwarding and lookup block for extracting output port information; a MAC address replacing block for forming an output frame by replacing the source MAC address; a MAC address storing block for storing a MAC address; and a frame transmitting block for transmitting the output frame.

Abstract translation: 提供了一种用于改变媒体访问控制（MAC）地址的装置，其是用于识别每个订户的常规用户硬件标识地址及其方法。 MAC地址改变装置包括：用于确定是否改变源MAC地址的帧接收块; 用于控制开关的开关控制块; 改变MAC地址生成块，用于改变接收到的帧的源MAC地址; 更改MAC地址存储块，用于存储与其对应的改变MAC地址和源MAC地址的信息; 用于提取输出端口信息的MAC地址转发和查找块; 用于通过替换源MAC地址来形成输出帧的MAC地址替换块; 用于存储MAC地址的MAC地址存储块; 以及用于发送输出帧的帧发送块。