H - Electricity – 03 – H
Patent
H - Electricity
03
H
H03H 7/46 (2006.01) H04B 3/50 (2006.01) H04L 5/06 (2006.01)
Patent
CA 2316336
The invention relates to a filter arrangement for separating analog or digital baseband signals, for example, POTS or ISDN signals and digital wideband signals, which are simultaneously transmitted on a two-wire line of a message transmission system. The filter arrangement has a bi-directional low-pass filter and a bi-directional high--pass filter, whereby the low-pass filter comprised of at least one first filter with a first passband, said filter permitting flow-through of direct current, and at least one second filter with a second passband is preferably assembled by connecting the inputs and outputs of the first and second filters in series.
Ensemble filtre servant à séparer des signaux analogiques ou numériques en bande de base, transmis sur une ligne bifilaire d'un système de communication, par ex. des signaux de services téléphoniques traditionnels ou des signaux RNIS, et des signaux numériques à large bande. Cet ensemble comprend un filtre passe-bas (4) et un filtre passe-haut bidirectionnel (3). Le filtre passe-bas (4) est constitué d'au moins un premier filtre (6) laissant passer un courant continu et comportant une première bande passante, et d'au moins un deuxième filtre (7) comportant une deuxième bande passante, de préférence par montage en parallèle des entrées et des sorties du premier et du deuxième filtre (6, 7).
Listopad Manfred
Pfeiffer Johann
Ericsson Austria Aktiengesellschaft
Marks & Clerk
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