公开(公告)号：US08170471B2

公开(公告)日：2012-05-01

申请号：US12631351

申请日：2009-12-04

申请人： Woong Cho ,  Hyun Seo Oh ,  Dong Yong Kwak

发明人： Woong Cho ,  Hyun Seo Oh ,  Dong Yong Kwak

IPC分类号： H04B7/15

CPC分类号： H04B7/15557 ,  H04B7/15592

摘要： A cooperative communication method for vehicular communication is provided. The method in which when one vehicle transmits a signal to another vehicle, a signal of a transmission vehicle passes through a roadside device or a plurality of vehicles and thereafter signals having a plurality of paths are transmitted to a reception vehicle, and the reception vehicle combines and demodulates the signals received through the plurality of paths.

摘要翻译： 提供了一种用于车辆通信的协作通信方法。 当一个车辆向另一车辆发送信号时，传输车辆的信号通过路侧设备或多个车辆，此后具有多个路径的信号被发送到接收车辆，并且接收车辆组合 并解调通过多个路径接收的信号。

公开(公告)号：US20100173603A1

公开(公告)日：2010-07-08

申请号：US12617130

申请日：2009-11-12

申请人： Dong Yong Kwak ,  Hyun Seo Oh ,  Wan Sik Choi ,  Jong-Hyun Park

发明人： Dong Yong Kwak ,  Hyun Seo Oh ,  Wan Sik Choi ,  Jong-Hyun Park

IPC分类号： H04M11/04

CPC分类号： G08G1/164 ,  B60W30/0956 ,  B60W2550/408

摘要： Provided are a method and a system for transmitting and receiving a warning message that rapidly inform an adjacent hop of a dangerous situation that occurs on a road. The method for transmitting the warning message includes selecting one or more relay vehicles by using distances between vehicles and state information of the vehicles when the dangerous situation occurs on a road or outside, and increasing a warning message sequence number and generating and transmitting a warning message containing an identifier of the relay vehicle and a retransmission time.

摘要翻译： 提供了一种用于发送和接收警告消息的方法和系统，其迅速地通知在道路上发生的危险情况的相邻跳跃。 用于发送警告消息的方法包括：当道路或外部发生危险情况时，通过使用车辆之间的距离和车辆的状态信息来选择一个或多个中继车辆，并且增加警告消息序列号并生成并发送警告消息 包含中继车辆的标识符和重传时间。

公开(公告)号：US20100158164A1

公开(公告)日：2010-06-24

申请号：US12643296

申请日：2009-12-21

申请人： Hyun Seo Oh ,  Hyun Kyun Choi ,  Sangin Kim ,  Daeki Hong ,  Dong Yong Kwak ,  Jong-Hyun Park

发明人： Hyun Seo Oh ,  Hyun Kyun Choi ,  Sangin Kim ,  Daeki Hong ,  Dong Yong Kwak ,  Jong-Hyun Park

IPC分类号： H04L27/06 ,  H04L7/00

CPC分类号： H04L27/2656 ,  H04L25/068 ,  H04L27/2675 ,  H04L27/2695

摘要： An apparatus for time synchronization of an orthogonal frequency division multiplexing (OFDM) system oversamples a received signal using a master clock having a frequency at least four times higher than a minimum sampling frequency in a transmission apparatus, sets one of a plurality of oversampled signals to an on-time signal, and shifts each of the remaining oversampled signals by a predetermined time on the basis of the on-time signal. The apparatus for time synchronization calculates a correlation value by correlating each of the shifted signals and the on-time signal with a previously known signal, detects a maximum energy value among the calculated correlation values, and detects a start point of a frame by comparing the maximum energy value with a predetermined threshold value.

摘要翻译： 正交频分复用（OFDM）系统的时间同步的装置使用在发送装置中具有比最小采样频率高至少四倍的频率的主时钟对接收信号进行采样，将多个过采样信号中的一个设置为 导通时间信号，并且基于接通时间信号将每个剩余的过采样信号移位预定时间。 用于时间同步的装置通过将每个移位信号和接通时间信号与先前已知的信号相关来计算相关值，检测所计算的相关值中的最大能量值，并通过比较 具有预定阈值的最大能量值。

公开(公告)号：US08270510B2

公开(公告)日：2012-09-18

申请号：US12643296

申请日：2009-12-21

申请人： Hyun Seo Oh ,  Hyun Kyun Choi ,  Sangin Kim ,  Daeki Hong ,  Dong Yong Kwak ,  Jong-Hyun Park

发明人： Hyun Seo Oh ,  Hyun Kyun Choi ,  Sangin Kim ,  Daeki Hong ,  Dong Yong Kwak ,  Jong-Hyun Park

IPC分类号： H04L27/28

CPC分类号： H04L27/2656 ,  H04L25/068 ,  H04L27/2675 ,  H04L27/2695

摘要： An apparatus for time synchronization of an orthogonal frequency division multiplexing (OFDM) system oversamples a received signal using a master clock having a frequency at least four times higher than a minimum sampling frequency in a transmission apparatus, sets one of a plurality of oversampled signals to an on-time signal, and shifts each of the remaining oversampled signals by a predetermined time on the basis of the on-time signal. The apparatus for time synchronization calculates a correlation value by correlating each of the shifted signals and the on-time signal with a previously known signal, detects a maximum energy value among the calculated correlation values, and detects a start point of a frame by comparing the maximum energy value with a predetermined threshold value.

摘要翻译： 正交频分复用（OFDM）系统的时间同步的装置使用在发送装置中具有比最小采样频率高至少四倍的频率的主时钟对接收信号进行采样，将多个过采样信号中的一个设置为 导通时间信号，并且基于接通时间信号将每个剩余的过采样信号移位预定时间。 用于时间同步的装置通过将每个移位信号和接通时间信号与先前已知的信号相关来计算相关值，检测所计算的相关值中的最大能量值，并通过比较 具有预定阈值的最大能量值。

公开(公告)号：US20100098048A1

公开(公告)日：2010-04-22

申请号：US12474963

申请日：2009-05-29

申请人： Moonsoo KANG ,  Sangwoo Lee ,  Jeonghoon Mo ,  Hyun Jeong Yun ,  Kyeong-Soo Han ,  Hyun Seo Oh ,  Dong Yong Kwak ,  Jeongseok Ha

发明人： Moonsoo KANG ,  Sangwoo Lee ,  Jeonghoon Mo ,  Hyun Jeong Yun ,  Kyeong-Soo Han ,  Hyun Seo Oh ,  Dong Yong Kwak ,  Jeongseok Ha

IPC分类号： H04J3/00 ,  H04L12/413

CPC分类号： H04L12/413

摘要： A method for hybrid media access control for vehicle communication is provided. The method divides a radio channel into time slots, which are predetermined time units, and sets terminals as owners or non-owners for the divided time slots to be able to access the channel. Accordingly, it is possible to reduce the probability of contention by distributed access to the slots and provide a MAC protocol having excellent performance.

摘要翻译： 提供了一种用于车辆通信的混合媒体访问控制的方法。 该方法将无线电信道划分为预定时间单位的时隙，并将终端设置为分割时隙的所有者或非所有者以能够访问该信道。 因此，可以通过对时隙的分布式访问来降低竞争的概率，并提供具有优异性能的MAC协议。

公开(公告)号：US07653798B2

公开(公告)日：2010-01-26

申请号：US10713943

申请日：2003-11-14

申请人： Bong Wan Kim ,  Dong Yong Kwak

发明人： Bong Wan Kim ,  Dong Yong Kwak

IPC分类号： G06F12/02

CPC分类号： G06F12/023

摘要： A memory management apparatus and method for storing data in units of various packet sizes in appliances utilizing memory devices are provided. The memory allocation apparatus includes data memory which includes a plurality of data blocks, each of which includes a plurality of sub data blocks having a predetermined size, and when there is a request for allocating memory space of a variable size, allocates memory space in units of any one of the sub data blocks and the data blocks, a free list memory which manages an free memory space of the data memory as at least one or more lists, and registers that store head location information and tail location information of the list.

摘要翻译： 提供一种存储器管理装置和方法，用于以利用存储器件的器具中的各种数据包大小为单位存储数据。 存储器分配装置包括数据存储器，其包括多个数据块，每个数据块包括具有预定大小的多个子数据块，并且当存在分配可变大小的存储器空间的请求时，以单位分配存储器空间 任何一个子数据块和数据块中的任一个的空闲列表存储器，其将数据存储器的空闲存储器空间管理为至少一个或多个列表，以及用于存储列表的头位置信息和尾部位置信息的寄存器。

公开(公告)号：US07300214B2

公开(公告)日：2007-11-27

申请号：US10828423

申请日：2004-04-19

申请人： Kyeong Hwan Doo ,  Bin Yeong Yoon ,  Dong Yong Kwak

发明人： Kyeong Hwan Doo ,  Bin Yeong Yoon ,  Dong Yong Kwak

IPC分类号： G02B6/36 ,  G02B6/32 ,  H01R12/14 ,  H01R13/66

CPC分类号： H04B10/801 ,  G02B6/4246 ,  G02B6/4277

摘要： Disclosed are an optical module interfacing device for connecting an RJ interface and an SFP type optical module to an SFP type optical module connector without additional processing, and an Ethernet system using the optical module interfacing device, thus supporting data transmission and reception. The optical module interfacing device includes a board having the same dimensions as those of the optical module, a male connector, having the same dimensions as those of the optical module, formed at a side surface of one end of the board to be connected to the female connector for the optical module mounted on a host board, and an RJ female connector provided with a plurality of pins formed on an upper surface of the board, respectively corresponding to pins of the male connector, according to standards. Further, UTP data is provided to MDI supporting ports of a physical layer through an interfacing unit.

摘要翻译： 公开了一种用于将RJ接口和SFP型光模块连接到SFP型光模块连接器而不进行附加处理的光模块接口装置，以及使用光模块接口装置的以太网系统，从而支持数据传输和接收。 光学模块接口装置包括具有与光学模块尺寸相同的尺寸的板，具有与光学模块相同尺寸的阳连接器，形成在板的一端侧的待连接到 用于安装在主板上的光学模块的阴连接器，以及根据标准，分别对应于公连接器的引脚，形成在板的上表面上的多个销的RJ母连接器。 此外，通过接口单元将UTP数据提供给物理层的MDI支持端口。

公开(公告)号：US5862127A

公开(公告)日：1999-01-19

申请号：US767028

申请日：1996-12-12

申请人： Dong Yong Kwak ,  Hong Shik Park

发明人： Dong Yong Kwak ,  Hong Shik Park

IPC分类号： H04L12/56 ,  H04Q11/04

CPC分类号： H04L12/5602 ,  H04Q11/0478 ,  H04L2012/5672 ,  H04L2012/5679

摘要： The present invention relates to a method for controlling the peak cell rate spacing of multiplexed ATM traffic. The method includes the steps of: (a) examining whether a cell has arrived for each time slot; (b) if arrived, saving the cell in a node specified by a free list header, linking the node to an event scheduler or a temporary queue according to the number of cells that have arrived and departed, linking nodes which are linked to a present cell time slot location of the event scheduler to an output list, transferring the cell in the first node linked to output list header to the output list, and linking the node which was used by the just-departed cell to free list, and if the number cells that have arrived and departed including the just-departed cell are different, linking the first node of the temporary queue to an appropriate location of the event scheduler; and (c) if not arrived, linking nodes which are linked to a present cell time slot location of the event scheduler to the output list, transferring the cell in the first node linked to output list header to the output list, and linking the node which was used by the just-departed cell to the free list, and if the number of cells that have arrived and departed including the just-departed cell are different, linking the first node of the temporary queue to an appropriate location of the event scheduler.

摘要翻译： 本发明涉及一种用于控制多路ATM业务的峰值信元速率间隔的方法。 该方法包括以下步骤：（a）检查每个时隙的小区是否到达; （b）如果到达，将该单元保存在由空闲列表头指定的节点中，根据已经到达和离开的单元的数量将节点链接到事件调度器或临时队列，链接到现在的节点 事件调度器的单元时隙位置到输出列表，将链接到输出列表头部的第一节点中的单元传输到输出列表，以及将刚刚离开的单元使用的节点链接到空闲列表，以及如果 已经到达和离开包括刚离开小区的号码单元是不同的，将临时队列的第一节点链接到事件调度器的适当位置; 以及（c）如果没有到达，链接到事件调度器的当前单元时隙位置的链接节​​点到输出列表，将链接到输出列表头部的第一节点中的单元传送到输出列表，以及链接节点 刚刚离开的小区被使用到空闲列表，并且如果已经到达和离开包括刚刚离开的小区的小区的数量是不同的，则将临时队列的第一节点链接到事件调度器的适当位置 。

公开(公告)号：US20110144858A1

公开(公告)日：2011-06-16

申请号：US13058102

申请日：2008-10-17

申请人： Hyun Jeong Yun ,  So Yeon Lee ,  Dong Yong Kwak ,  Jong Hyun Park

发明人： Hyun Jeong Yun ,  So Yeon Lee ,  Dong Yong Kwak ,  Jong Hyun Park

IPC分类号： H04W40/00 ,  G06F7/00 ,  H04W36/00

CPC分类号： H04L12/40006 ,  H04L2012/40215 ,  H04L2012/40234 ,  H04L2012/40241 ,  H04L2012/40273

摘要： Provide are a vehicle gateway, and an apparatus and a method for vehicle network interface. The vehicle gateway includes a first interface connected to each unit of a vehicle network, a second interface connected to one or more access devices acquiring vehicle information from the vehicle network, and a packet processor connecting the first interface to the second interface, and determining a communication system and a communication path to each of the access devices and a process order of the vehicle information acquisition.

摘要翻译： 提供车辆网关，车辆网络接口的装置和方法。 车辆网关包括连接到车辆网络的每个单元的第一接口，连接到从车辆网络获取车辆信息的一个或多个接入设备的第二接口，以及将第一接口连接到第二接口的分组处理器， 通信系统和到每个接入设备的通信路径以及车辆信息获取的处理顺序。

公开(公告)号：US07330469B2

公开(公告)日：2008-02-12

申请号：US10723829

申请日：2003-11-25

申请人： Nam Seok Ko ,  Dong Yong Kwak

发明人： Nam Seok Ko ,  Dong Yong Kwak

IPC分类号： H04L12/54

CPC分类号： H04L45/00 ,  H04L45/742

摘要： Provided are an IP address lookup system and method for forwarding a packet over a data plane of a router. The IP address lookup system includes a forwarding table which has a three-layer table architecture so that it can search for each address group that constitutes an IP destination address of an input packet and a forwarding engine which obtains packet processing information and next hop information for the input packet by searching for the forwarding table using the IP destination address as a search key.

摘要翻译： 提供了一种用于通过路由器的数据平面转发分组的IP地址查找系统和方法。 IP地址查找系统包括具有三层表架构的转发表，以便能够搜索构成输入分组的IP目的地地址的每个地址组，以及获取分组处理信息和下一跳信息的转发引擎 通过使用IP目的地地址作为搜索关键字搜索转发表来输入分组。