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    • 1. 发明授权
    • Device for broadcasting digital information via satellite
    • 通过卫星广播数字信息的装置
    • US6134225A
    • 2000-10-17
    • US932242
    • 1997-09-17
    • Huu Nghia PhamCarlo Elia
    • Huu Nghia PhamCarlo Elia
    • H04N7/20H03M13/00H04B7/15H04B7/185H04H20/00
    • H04B7/18523
    • The device comprises at least one set of links that send packet formatted digital information to the satellite on at least two different frequencies, at least one second set of links on board the satellite receives the digital information packets, at least one packet time multiplexing module connected both to output of the second set of links and to input of a digital information formatting module comprising a scrambler connected to input of a part of a broadcasting DVB-S chain beginning by a convolutive interleaving block and terminating by a QPSK modulator, at least one clock on board the satellite, this clock, working in asynchronism with all earth clocks and driving the satellite-borne assembly.
    • 该设备包括至少一组链路,其在至少两个不同的频率上向卫星发送分组格式化的数字信息,卫星上的至少一个第二组链路接收数字信息分组,至少一个分组时间复用模块连接 既输出第二组链路,又输入数字信息格式化模块,该数字信息格式化模块包括连接到由卷积交织块开始并由QPSK调制器终止的广播DVB-S链的一部分的输入的加扰器,至少一个 卫星上的时钟,这个时钟,与所有的地球钟不同步,并驾驶卫星传播的大会。