Abstract: The invention sets out to make it possible to distribute multiple decoders usable in the home of a subscriber. The decoders using one and the same subscription will have to communicate with one another to operate. This communication is facilitated by the cable allowing the transmission of services into the home. The emission and reception power of the signals implementing this communication is managed in such a way as to preclude this communication between two neighbouring homes by the service distribution equipment, in the case of a communal distribution of these services.

Abstract: The disclosure relates to a method of synchronization of clocks wherein, in a system including a digital decoder of a receiver equipped with a sampling clock and a digital encoder of an transmitter also equipped with a sampling clock, said method includes the following stages: in the transmitter, coding by packets of samples of a signal by time intervals of predetermined duration and triggering of the transmission of a data frame when a packet of data is ready to be sent; in the receiver, detection of start of said frame, and generation of a reference signal following said detection, said reference signal being used to correct the clock of the receiver.