| 摘要 |
The device for detecting loss of synchronisation, at reception, in a digital information transmission network, comprises two packet- period cyclic counters (C1, C2) for a detection of loss of packet synchronisation, one initialised by an external packet synchronisation signal (INIT), the other by the end of counting of the first signal (TC1), and means (3, 4) of analysis of the relative phase of the two cyclic counters in order to generate packet-synchronisation loss pulses (PSP) when an end of counting pulse issued by one of the counters does not coincide with an end of counting pulse issued by the other. Application, in particular, to the generation of notification of loss of synchronisation destined for a centralised management centre, in a multiservice transmission network for example. <IMAGE> |
