公开(公告)号：US06404385B1

公开(公告)日：2002-06-11

申请号：US09446418

申请日：2000-02-15

申请人： Frédéric Croq ,  Florence Dolmeta ,  Philippe Voisin ,  Didier Casasoprana

发明人： Frédéric Croq ,  Florence Dolmeta ,  Philippe Voisin ,  Didier Casasoprana

IPC分类号： H01Q300

CPC分类号： H01Q25/00 ,  H01Q1/288 ,  H01Q3/08 ,  H01Q3/26 ,  H01Q3/28 ,  H01Q3/40 ,  H01Q21/061

摘要： A telecommunications system antenna for communicating, in transmission and in reception, with a large area whose position relative to the antenna varies. The antenna has motors (80, 82) for pointing the antenna towards the area and radiating elements (74, 76) associated with a control device for modifying the antenna's radiation pattern according to the relative position of the antenna and the area. When the antenna is installed on a telecommunications satellite, as the antenna moves, the antenna can remain constantly in communication with an area of the Earth covering several hundred kilometers.

摘要翻译： 一种电信系统天线，用于在传输和接收中以相对于天线的位置变化的大面积进行通信。 天线具有用于将天线指向该区域的电动机（80,82）和与控制装置相关联的辐射元件（74,76），用于根据天线和该区域的相对位置来修改天线的辐射图。 当天线安装在电信卫星上时，随着天线的移动，天线可以保持与地球覆盖数百公里的地区不间断地通信。

公开(公告)号：US6128488A

公开(公告)日：2000-10-03

申请号：US661665

申请日：1996-06-11

申请人： Anne Sauvageot ,  Denis Rouffet ,  Didier Casasoprana

发明人： Anne Sauvageot ,  Denis Rouffet ,  Didier Casasoprana

IPC分类号： H04B7/15 ,  H04B7/185 ,  H04B7/195 ,  H04Q7/20

CPC分类号： H04B7/18541

摘要： A communication system comprising a set of non-geostationary satellites provides communication links between ground stations and terminals, a communication link from a particular station via a satellite terminating at associated terminals in a limited geographical area including the station and providing a communication channel to at least some of the associated terminals. The communication link is switched to another satellite during the process of communication link handover. A communication link between a particular station and its associated terminals includes an additional communication channel which enables advance data to be transmitted between the particular station and a terminal before the latter executes a communication link handover. This data masks any interruption of communication caused by the communication link handover.

摘要翻译： 包括一组非对地静止卫星的通信系统提供地面站和终端之间的通信链路，来自特定站的通过卫星的通信链路终止在包括该站的有限地理区域中的相关终端处，并且至少提供通信信道 一些相关终端。 在通信链路切换过程中，通信链路被切换到另一个卫星。 特定站与其相关终端之间的通信链路包括附加通信信道，其使得可以在特定站和终端执行通信链路切换之前在特定站和终端之间传送提前数据。 该数据掩蔽由通信链路切换引起的通信的任何中断。

公开(公告)号：US06374104B1

公开(公告)日：2002-04-16

申请号：US09446424

申请日：2000-03-01

申请人： Frédéric Croq ,  Florence Dolmeta ,  Philippe Voisin ,  Didier Casasoprana

发明人： Frédéric Croq ,  Florence Dolmeta ,  Philippe Voisin ,  Didier Casasoprana

IPC分类号： H04B7204

CPC分类号： H04B7/2041

摘要： The invention concerns a telecommunications system in which the Earth is divided into areas (26) within which communications are effected by means of transmit and receive means on a spacecraft, such as a satellite, allocated to communication for a plurality of areas. Areas (2610, 2611, 2612) of a first category (28) are allocated signals having respective polarizations (PD, PG) and carrier frequencies (&Dgr;F1, &Dgr;F2) such that two adjacent areas of the first category are allocated signals having different polarizations or carrier frequencies. Each area of a second category (30) is allocated signals having all the available polarizations and all the available carrier frequencies.

摘要翻译： 本发明涉及一种电信系统，其中地球被划分为区域（26），通过发射和接收装置在诸如卫星的航天器（其被分配用于多个区域的通信）中进行通信。 分配第一类别（28）的区域（2610,2611,2612）被分配具有各自偏振（PD，PG）和载波频率（DELTAF1，DELTAF2）的信号，使得第一类别的两个相邻区域被分配具有不同偏振的信号或 载波频率。 第二类别（30）的每个区域被分配具有所有可用偏振和所有可用载波频率的信号。