H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/84
H04L 5/14 (2006.01) H04L 12/407 (2006.01) H04L 12/433 (2006.01)
Patent
CA 2010716
IN THE CANADIAN PATENT AND TRADE MARKS OFFICE PATENT APPLICATION entitled : METHOD AND APPARATUS FOR ACCESSING A DISTRIBUTED COMMUNICATIONS NETWORK in the name of: Jean A. PICANDET assignee: JS TELECOM Société Anonyme ABSTRACT OF THE DISCLOSURE Stations (S1, ..., Sn, ..., Sp), having a number of data transmission terminals (T1-1 to T1-n1, ..., Tn-1 to Tn-n, .... Tp-1 to Tp-np), connected thereto are joined by links (PCM1-2, ..., PCM(n-1)n, PCMn-(n+1), ..., PCMp-1) defining at least one virtual loop that forms at least one communications channel passing through all stations. The channels convey frames that carry at least one access token, signalling information and data. Each station has its own local bus (BL1, ..., BLn, ..., BLp) into which write access by the data transmission terminals is governed by acontention system, the terminal gaining access to transmit on the communications channel via a local bus. Means are provided for intercepting access token for transmission on the communications channel in response to an access request coming from one or several terminal(s) depending from the station. Means are provided for re-transmitting the access token into the communications channel once the requesting terminal(s) has/have successively transmitted its/their respective message(s) via the local bus.
Js Telecom
Picandet Jean A.
Robic Robic & Associes/associates
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