H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 11/06 (2006.01)
Patent
CA 2310638
The present invention relates to a message transmission system which is intended for simultaneously transmitting digital or analog base-band signals, such as ordinary telephone system signals, RNIS or the like, as well as wide-band signals such as ADSL, VDSL or the like. This transmission is carried out through a dual-wire line extending between a central organ such as a telephone exchange and at least one subscriber. This system comprises at least one base-band unit and one wide-band unit which are connected to the subscriber's line through at least one hybrid circuit and at least one wide-band filter, wherein said filter comprises a high-pass filter and a low-pass filter. The base-band unit, the wide-band unit and optionally the hybrid circuit(s) as well as the wide-band filter(s) are assembled into an unit comprising an interface control central device.
Système de transmission de messages pour la transmission simultanée de signaux en bande de base analogiques ou numériques, par ex. des signaux de systèmes téléphoniques ordinaires, RNIS ou similaire, et de signaux à bande large, par ex. ADSL, VDSL ou similaire, par l'intermédiaire d'une ligne bifilaire, entre un organe central, par ex. un central téléphonique, et au moins un abonné. Ce système comprend au moins une unité en bande de base et une unité à bande large qui sont raccordées à la ligne d'abonné par l'intermédiaire d'au moins un circuit hybride et d'au moins un filtre à bande large constitué d'un filtre passe-haut et d'un filtre passe-bas. L'unité en bande de base (30), l'unité à bande large (20), éventuellement le ou les circuits hybrides (7; 25) et le ou les filtres à large bande (1; 1', 1''' ou 1'', 1<IV>), sont réunis pour former une unité comportant un dispositif central de commande interface (50).
Johansson Albin
Sjoberg Per-Olof
Ericsson Austria Aktiengesellschaft
Ericsson Canada Patent Group
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