Abstract:
A messaging data management installation comprises i) messaging means (3, 5) able to receive messaging data in correspondence with user identifiers, ii) messaging data broadcast means (17-20), iii) at least one device (10) able to deliver a primary identifier representing a user identifier, iv) detection means (9-j) capable of detecting primary identifiers delivered by the device (10) and transmitting them, and v) management means (1, 8) capable, whenever they receive a primary identifier transmitted by the detection means (9-j), of determining the associated user identifier, and then seeking amongst the messaging data received by the messaging means (3, 5) those which are associated with the user identifier determined and, when such data are present, ordering their broadcast by at least one of the broadcast means (17-20).
Abstract:
A method for remodulation of a modulated optical signal is disclosed which uses a disturbed line signal and an optical clock signal derived from the undisturbed original line signal modulated with the bitrate frequency feeding both signals in a Raman amplifying fiber connected to at least one Raman pump running the clock signal as Raman pump wavelength for the line signal.