公开(公告)号：US20120162021A1

公开(公告)日：2012-06-28

申请号：US13334906

申请日：2011-12-22

申请人： Kyong-Hee LEE ,  Gwang-Ja Jin ,  Moon-Kyun Oh ,  Hae-Won Son

发明人： Kyong-Hee LEE ,  Gwang-Ja Jin ,  Moon-Kyun Oh ,  Hae-Won Son

IPC分类号： H01Q9/04

CPC分类号： H01Q9/0428 ,  H01Q21/26

摘要： Disclosed herein is a circularly polarized antenna with a wide beam width, in which four U-shaped metal strips are disposed in a circular shape, and four signals having the same magnitude and phase difference intervals of 90 degrees are fed to the respective metal strips so as to transceive circularly polarized waves. The disclosed circularly polarized antenna includes a ground plane, a central patch formed in the center of an upper surface of the ground plane, and a plurality of radiation patches disposed above the ground plane and around the central patch in a circular shape, wherein signals having the same magnitude and preset phase differences are fed to respective radiation patches.

摘要翻译： 本文公开了一种具有宽光束宽度的圆极化天线，其中四个U形金属带设置为圆形，并且具有相同的90度的幅度和相位差间隔的四个信号被馈送到相应的金属条，因此 收发圆偏振波。 所公开的圆极化天线包括接地平面，形成在接地平面的上表面中心的中心贴片，以及设置在接地平面上方并围绕中心贴片呈圆形的多个辐射贴片，其中信号具有 将相同的幅度和预设的相位差馈送到相应的辐射贴片。

公开(公告)号：US20070133528A1

公开(公告)日：2007-06-14

申请号：US11635295

申请日：2006-12-07

申请人： Gwang-Ja Jin ,  Min-Su Shin ,  Nam-Kyung Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

发明人： Gwang-Ja Jin ,  Min-Su Shin ,  Nam-Kyung Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

IPC分类号： H04L12/56 ,  H04L12/54

CPC分类号： H04L47/10 ,  H04B7/18593 ,  H04L47/14 ,  H04L47/40 ,  H04L63/0272 ,  H04L63/0428 ,  H04L63/164 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163 ,  H04L69/168 ,  H04W12/02 ,  H04W80/04

摘要： There are provided an apparatus and method for traffic performance improvement and traffic security in an interactive satellite communication system. The method for traffic performance improvement of an interactive satellite communication system includes the steps of: a) storing an Internet protocol (IP) packet that is received from a user terminal connected to a satellite mobile terminal of the interactive satellite communication system and is to be transmitted to a central station through a satellite; b) transmitting acknowledgement for the stored IP packet to the user terminal by acting for the central station, before the stored IP packet is transmitted to the central station; and c) transmitting the stored IP packet through the satellite to the central station, and retransmitting an unacknowledged IP packet according to a retransmission request of the central station.

摘要翻译： 提供了一种用于交互式卫星通信系统中的交通性能改善和交通安全的装置和方法。 交互式卫星通信系统的交通性能改善方法包括以下步骤：a）存储从连接到交互式卫星通信系统的卫星移动终端的用户终端接收到的因特网协议（IP）分组， 通过卫星传送到中心站; b）在所存储的IP分组被发送到中心站之前，通过对中心站的动作来向所述用户终端发送所存储的IP分组的确认; 以及c）通过所述卫星将所存储的IP分组发送到所述中心站，并且根据所述中心站的重发请求重传未确认的IP分组。

公开(公告)号：US07940713B2

公开(公告)日：2011-05-10

申请号：US11635295

申请日：2006-12-07

申请人： Gwang-Ja Jin ,  Min-Su Shin ,  Nam-Kyung Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

发明人： Gwang-Ja Jin ,  Min-Su Shin ,  Nam-Kyung Lee ,  Deock-Gil Oh ,  Ho-Jin Lee

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04B7/18593 ,  H04L47/14 ,  H04L47/40 ,  H04L63/0272 ,  H04L63/0428 ,  H04L63/164 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163 ,  H04L69/168 ,  H04W12/02 ,  H04W80/04

摘要： There are provided an apparatus and method for traffic performance improvement and traffic security in an interactive satellite communication system. The method for traffic performance improvement of an interactive satellite communication system includes the steps of: a) storing an Internet protocol (IP) packet that is received from a user terminal connected to a satellite mobile terminal of the interactive satellite communication system and is to be transmitted to a central station through a satellite; b) transmitting acknowledgement for the stored IP packet to the user terminal by acting for the central station, before the stored IP packet is transmitted to the central station; and c) transmitting the stored IP packet through the satellite to the central station, and retransmitting an unacknowledged IP packet according to a retransmission request of the central station.

摘要翻译： 提供了一种用于交互式卫星通信系统中的交通性能改善和交通安全的装置和方法。 交互式卫星通信系统的交通性能改善方法包括以下步骤：a）存储从连接到交互式卫星通信系统的卫星移动终端的用户终端接收到的因特网协议（IP）分组， 通过卫星传送到中心站; b）在所存储的IP分组被发送到中心站之前，通过对中心站的动作来向所述用户终端发送所存储的IP分组的确认; 以及c）通过所述卫星将所存储的IP分组发送到所述中心站，并且根据所述中心站的重发请求重传未确认的IP分组。

公开(公告)号：US20100321150A1

公开(公告)日：2010-12-23

申请号：US12446066

申请日：2007-10-12

申请人： Eun-Ju Lee ,  Jae-Hong Ryu ,  Gwang-Ja Jin ,  Young-Min Kim ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suck Chae

发明人： Eun-Ju Lee ,  Jae-Hong Ryu ,  Gwang-Ja Jin ,  Young-Min Kim ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suck Chae

IPC分类号： G06F7/04

CPC分类号： G08G1/005 ,  G07C9/00103 ,  G07C9/00111

摘要： Provided are a system and method for guiding a visitor using a sensor network. The system includes: an entry approval requesting unit for requesting an entry approval of the visitor to the visitee terminal according to destination information; a route setting unit for setting a route along which the visitor terminal is to move to the destination, based on the destination information of the visitor, according to an entry approval result of the visitee terminal; a location detecting unit for detecting a current location of the visitor terminal based on identification information of the visitor terminal and location information of the sensor node, the identification information and the location information being obtained through the sensor network on the route; and a location confirming unit for confirming if the detected current location of the visitor terminal is out of a preset area.

摘要翻译： 提供了一种使用传感器网络引导访问者的系统和方法。 该系统包括：入口许可请求单元，用于根据目的地信息请求访客到访客的入场许可; 根据访问者的目的地信息，根据访问者终端的入场许可结果，设置用于设置访客终端移动到目的地的路线的路线设定单元; 位置检测单元，用于基于所述访问者终端的识别信息和所述传感器节点的位置信息来检测所述访问者终端的当前位置，所述识别信息和所述位置信息通过所述传感器网络在所述路线上获得; 以及位置确认单元，用于确认所检测的访问者终端的当前位置是否在预设区域之外。