Abstract: The invention provides a method of decoding a decided signal received from a decision circuit to supply a decoded signal, said method comprising: a step of detecting a word of N bits in said received decided signal to supply a detected word; a step of selecting an admissible word of N bits in a dictionary of the error correction code used for encoding in accordance with a criterion of the shortest distance between said detected word and said selected admissible word; and a step of decoding a word of L bits constituting said decoded signal from said selected admissible word. According to the invention, the distance used in the selection step takes account of the relative reliabilities of 2K sequences of K bits, 0<K<N.

Abstract: A device and method are provided for transmitting an optical signal including at least two optical components to be transmitted respectively through at least two optical links that can be established respectively between the transmission device and at least two terminal devices. The transmission device and method associate, based on at least one parameter representative of the optical losses of the optical links, at least one of the optical components to at least one optical link selected from the optical links and to a transmission optical power.

Abstract: A method and apparatus are provided for processing a composite optical signal formed of a sequence of time sectors obtained by time-division multiplexing a plurality of optical signals transmitted on a plurality of transmission channels of a shared optical access network. The method includes: taking account of a schedule for transmission of the plurality of optical signals in the access network, the schedule associating with a time sector an optical signal of the sequence and a transmission channel of the plurality of transmission channels used by the optical signal; recovering a set of representative performance parameters of the transmission channel associated with the time sector; and adaptively correcting the time sector using the set of parameters.

Abstract: The invention provides a method of decoding a decided signal received from a decision circuit to supply a decoded signal, said method comprising: a step of detecting a word of N bits in said received decided signal to supply a detected word; a step of selecting an admissible word of N bits in a dictionary of the error correction code used for encoding in accordance with a criterion of the shortest distance between said detected word and said selected admissible word; and a step of decoding a word of L bits constituting said decoded signal from said selected admissible word. According to the invention, the distance used in the selection step takes account of the relative reliabilities of 2K sequences of K bits, 0<K<N.