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61. 发明授权

US07831000B2 Method for time synchronization in distributed control system 有权
标题翻译：分布式控制系统中时间同步的方法
公开(公告)号：US07831000B2
公开(公告)日：2010-11-09
申请号：US11652226
申请日：2007-01-11
申请人： Si-Hai Wang , Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim
发明人： Si-Hai Wang , Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim
IPC分类号： H04L7/00
CPC分类号： H04J3/0664
摘要： A method for time synchronization in a distributed control system includes the steps of: when a sync is received from a master-side, confirming both a reception time point of the corresponding sync and a compensation time point of a previous frequency, and determining if a result obtained by confirming the two time points corresponds to a preset Frequency Compensation Interval (FCI); performing only a time offset compensation operation when the result obtained by confirming the two time points does not correspond to the preset FCI; and performing both time offset and frequency compensation operations when the result obtained by confirming the two time points corresponds to the preset FCI.
摘要翻译：在分布式控制系统中的时间同步的方法包括以下步骤：当从主方接收到同步时，确认相应同步的接收时间点和前一频率的补偿时间点，并确定是否通过确认两个时间点获得的结果对应于预设的频率补偿间隔（FCI）; 当通过确认两个时间点获得的结果不对应于预设的FCI时，仅执行时间偏移补偿操作; 并且当通过确认两个时间点获得的结果对应于预设的FCI时，执行时间偏移和频率补偿操作两者。

62. 发明申请

US20100209105A1 VISIBLE LIGHT COMMUNICATION METHOD AND SYSTEM 有权
标题翻译：可见光通信方法与系统
公开(公告)号：US20100209105A1
公开(公告)日：2010-08-19
申请号：US12707381
申请日：2010-02-17
申请人： Hong-Seok Shin , Dae-Kwang Jung , Jeong-Seok Choi , Kyung-Woo Lee , Sung-Bum Park , Jae-Hun Cho
发明人： Hong-Seok Shin , Dae-Kwang Jung , Jeong-Seok Choi , Kyung-Woo Lee , Sung-Bum Park , Jae-Hun Cho
IPC分类号： H04J14/08 , H04B10/20
CPC分类号： H04B10/116 , H04B10/1149 , H04W72/0406 , H04W74/0866 , H05B37/0272
摘要： A Visible Light Communication (VLC) method in a VLC terminal, in which the VLC terminal requests initial access to an Access Point (AP) on a selected mini-slot among a plurality of mini-slots constituting a control slot, based on control information in a frame, sends an association request to the AP on an allocated uplink time slot, if the uplink time slot allocated to correspond to the selected mini-slot exists in control information in a next frame, and transmits data at a data rate appointed to the VLC terminal included in control information in the current frame using an association Identifier (ID) included in a response received in reply to the association request and the allocated uplink time slot.
摘要翻译： VLC终端中的可见光通信（VLC）方法，其中VLC终端基于控制信息请求在构成控制时隙的多个微时隙中的所选小时隙上的接入点（AP）的初始接入如果在下一帧中的控制信息中存在与所选择的小时隙分配的上行链路时隙，则在所分配的上行链路时隙中向AP发送关联请求，并以指定的数据速率发送数据使用包括在响应于关联请求而接收的响应中的关联标识符（ID）和所分配的上行链路时隙，在当前帧中包含在控制信息中的VLC终端。

63. 发明申请

US20080165348A1 APPARATUS FOR MONITORING OPTICAL FIBER LINK 审中-公开
标题翻译：用于监控光纤链路的装置
公开(公告)号：US20080165348A1
公开(公告)日：2008-07-10
申请号：US11967311
申请日：2007-12-31
申请人： Hoon Kim , Jae-Hun Cho , Seong-Taek Hwang
发明人： Hoon Kim , Jae-Hun Cho , Seong-Taek Hwang
IPC分类号： G01N21/00
CPC分类号： G01M11/333
摘要： An apparatus and method for monitoring an optical fiber that links a first node and a second node. An apparatus includes: a first transmitting part for outputting a first check light, which is modulated by the first pattern signal, to the optical fiber link. A first receiving part demodulates the second pattern signal from the second check light, which is input by the optical fiber link. A first processor generates the first pattern signal and outputs the first pattern signal to the first transmitting part, and receives the second pattern signal from the first receiving part.
摘要翻译：一种用于监视链接第一节点和第二节点的光纤的装置和方法。一种装置包括：第一发送部分，用于将由第一模式信号调制的第一检查光输出到光纤链路。第一接收部分从由光纤链路输入的第二检查光解调第二图案信号。第一处理器生成第一图案信号并将第一图案信号输出到第一发送部，并从第一接收部接收第二图案信号。

64. 发明申请

US20070258550A1 Method for time synchronization in distributed control system 有权
标题翻译：分布式控制系统中时间同步的方法
公开(公告)号：US20070258550A1
公开(公告)日：2007-11-08
申请号：US11652226
申请日：2007-01-11
申请人： Si-Hai Wang , Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim
发明人： Si-Hai Wang , Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim
IPC分类号： H04L7/00
CPC分类号： H04J3/0664
摘要： A method for time synchronization in a distributed control system includes the steps of: when a sync is received from a master-side, confirming both a reception time point of the corresponding sync and a compensation time point of a previous frequency, and determining if a result obtained by confirming the two time points corresponds to a preset Frequency Compensation Interval (FCI); performing only a time offset compensation operation when the result obtained by confirming the two time points does not correspond to the preset FCI; and performing both time offset and frequency compensation operations when the result obtained by confirming the two time points corresponds to the preset FCI.
摘要翻译：在分布式控制系统中的时间同步的方法包括以下步骤：当从主方接收到同步时，确认相应同步的接收时间点和前一频率的补偿时间点，并确定是否通过确认两个时间点获得的结果对应于预设的频率补偿间隔（FCI）; 当通过确认两个时间点获得的结果不对应于预设的FCI时，仅执行时间偏移补偿操作; 并且当通过确认两个时间点获得的结果对应于预设的FCI时，执行时间偏移和频率补偿操作两者。

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