H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 5/14 (2006.01) H04L 5/02 (2006.01) H04L 5/06 (2006.01) H04L 27/26 (2006.01)
Patent
CA 2174864
A communications system employs a high-speed digital link with discrete multiple tone (DMT) wherein the outward paths from a central transmitter/receiver to further transmitter/receivers receiving signals therefrom using one set of carrier frequency channels and the return signal paths using a different set of carrier frequency channels. In one form the central transmitter/receiver is an exchange and the further transmitter/receivers are subscribers connected to the exchange.
Un système de communication comporte une liaison numérique à débit élevé de multi-tonalités discontinues où les trajets sortants d'un émetteur-récepteur central à destination d'autres émetteurs-récepteurs en recevant des signaux empruntent un ensemble de voies à fréquences porteuses et où les trajets de signaux de retour empruntent un ensemble différent de voies à fréquences porteuses. Selon une variante, l'émetteur-récepteur central constitue un central auquel sont raccordés les autres émetteurs-récepteurs propres aux abonnés.
Chalmers David Christopher
Clayton Frederick Michael
Fetherstonhaugh & Co.
Gpt Limited
LandOfFree
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