H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/19, 344/25
H04J 3/02 (2006.01) H04J 3/06 (2006.01) H04J 3/24 (2006.01) H04L 12/52 (2006.01)
Patent
CA 1085071
ABSTRACT OF THE DISCLOSURE: Digital transmission system providing multipoint connections in which a main data transceiver can communication with a plurality of secondary data transceivers and the secondary data transceivers can each in turn communicate with the main data transceiver, transmission occuring via component digital words at certain low rates, multiplexed into intermedaite rate incoming digital channels, which are themselves multiplexed into a high rate incoming highway. The words are given a first partial address in the low to intermediate rate multiplexing step and a second partial address in the intermediate to high rate multiplexing step. A digital switching network is provided for selectively switching the component words from the high rate incoming highway to word positions in a high rate outgoing highway according to their first and second partial addresses. A multipoint unit is connected to the switching network by intermediate rate incoming and outgoing digital channels, and the multipoint unit comprises means for simultaneously transfer- ring the input words of the intermediate rate incoming digital channel assigned to the main transceiver to output word positions in the intermediate rate outgoing digital channel assigned to the secondary transceivers and means for sequentially transfer- ring the input words of the intermediate rate incoming digital channel assigned to the secondary transceivers to output word positions in the intermediate rate outgoing digital channel assigned to the main transceiver.
275007
Robic Robic & Associes/associates
Texier Alain
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