Methods, apparatuses and system for asynchronous spread-spectrum communication
    1.
    发明公开
    Methods, apparatuses and system for asynchronous spread-spectrum communication 审中-公开
    Verfahren,Vorrichtungen und System zur asynchronen Spreizspektrumkommunikation

    公开(公告)号:EP2159926A1

    公开(公告)日:2010-03-03

    申请号:EP08290801.3

    申请日:2008-08-26

    IPC分类号: H04B1/707 H04B7/185

    摘要: A method of receiving data packets asynchronously transmitted by a plurality of user terminals using a spread-spectrum medium access protocol, comprising a step of cancelling interferences between colliding packets according to an innovative "sliding window" processing algorithm.
    A gateway receiver adapted for carrying out interference cancellation according to said algorithm.
    A method for controlling asynchronous packet transmission from a user terminal, comprising estimating a parameter indicative of the quality of information transmission through a communication channel; and inhibiting or allowing data transmission depending on a comparison between said estimated parameter and an adaptively varying threshold.
    A user terminal comprising transmission control means adapted for carrying out such a method.
    A communication system comprising a plurality of mobile user terminal communicating with a gateway through a satellite channel using an asynchronous spread-spectrum medium access protocol without closed-loop power control, wherein said user terminals and said gateway are of the kind described above.

    摘要翻译: 一种使用扩频介质访问协议接收由多个用户终端异步发送的数据分组的方法,包括根据创新的“滑动窗口”处理算法消除冲突分组之间的干扰的步骤。 一种适于根据所述算法执行干扰消除的网关接收机。 一种用于从用户终端控制异步分组传输的方法,包括:估计通过通信信道指示信息传输质量的参数; 以及根据所述估计参数与自适应变化阈值之间的比较来禁止或允许数据传输。 一种用户终端,包括适于执行这种方法的传输控制装置。 一种通信系统,包括多个移动用户终端,通过使用不具有闭环功率控制的异步扩展频谱媒体接入协议通过卫星信道与网关进行通信,其中所述用户终端和所述网关是上述种类。

    PIECE D'HORLOGERIE ELECTRONIQUE DU TYPE MONTRE MULTIFONCTIONS D'AIDE A LA NAVIGATION, NOTAMMENT POUR UNE MISSION SPATIALE
    3.
    发明公开
    PIECE D'HORLOGERIE ELECTRONIQUE DU TYPE MONTRE MULTIFONCTIONS D'AIDE A LA NAVIGATION, NOTAMMENT POUR UNE MISSION SPATIALE 有权
    是一个多功能及导航功能的支持专为太空任务的合适的电子钟

    公开(公告)号:EP1807738A2

    公开(公告)日:2007-07-18

    申请号:EP05797599.7

    申请日:2005-08-18

    IPC分类号: G04F10/00 G04G9/00 G04F1/00

    摘要: The invention relates to an electronic watch which is particularly suitable for space missions. The inventive timepiece can be used at any time to set a first date, i.e. the start of the mission (t0), in relation to a local time scale (T1) or Universal Time (GMT) and to determine a first corresponding time scale (MET). The timepiece can also be used at any time to set a second date, i.e. the start (t'0) of one of the phases of the mission, in relation to the first time scale (MET) or Universal Time (GMT) and to determine a second corresponding time scale (PET). The invention comprises setting means, storage means, calculation means and analogue and digital display means. The aforementioned digital display means display a negative time value (-) when the start date has yet to arrive and a positive time value (+) when said date has passed. The invention also comprises five audible alarms, a stopwatch and a timer.

    Conteneur muni d'au moins un dispositif d'obturation
    10.
    发明公开

    公开(公告)号:EP1184296A1

    公开(公告)日:2002-03-06

    申请号:EP01402015.0

    申请日:2001-07-26

    IPC分类号: B65D51/00 B65D47/00

    摘要: L'invention concerne un conteneur (1) muni d'un dispositif (10) d'obturation permettant de placer un objet (100) dans ledit conteneur (1), en particulier pour le manipuler, ou de le retirer de celui-ci, le dispositif d'obturation (10) présentant un plan et comprenant des moyens (40) d'obturation déformables élastiquement pour passer d'un état de repos fermé hors contrainte externe à un état actif ouvert sous une contrainte externe.
    Ce conteneur se caractérise en ce que les moyens d'obturation (40) sont déformables élastiquement essentiellement dans le plan du dispositif d'obturation (10).

    摘要翻译: 设计用于在零重力条件下由宇航员使用的容器(1)具有至少一个被封闭件(10)覆盖的端部,所述封闭件(10)可在其表面的平面中弹性变形,以允许容器内部的物体(100)为 处理或检索。 封闭件具有刚性的外围支撑结构(50),其通过交错的弹性元件连接到柔软织物套筒形式的封闭件(60)。