发明名称 Method for transmitting and receiving video signals
摘要 <p>Method for transmission/reception of signals using a user device (2) intended to receive a video signal (VS CR ) and a central management device (4), the method comprising the steps of: a) transmission from the central device (4) to the user device (2) of an recognition word (PSW) in a first encoded form (PSW1); b) retransmission from the central device to the user device of the recognition word received from the central device in a second encoded form (PSW2); c) authentication by the central device of the user device on the basis of the recognition word (PSW2) in the second encoded form; d) a step to enable the user device to display the video signal when the authentication step c) ends with the identification of said user device.</p>
申请公布号 EP1624690(A1) 申请公布日期 2006.02.08
申请号 EP20040425621 申请日期 2004.08.06
申请人 NETSYSTEM.COM S.P.A. 发明人 FRASSA, STEFANO
分类号 H04L9/32;H04N7/167;H04N7/173 主分类号 H04L9/32
代理机构 代理人
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