Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1987-08-31
1989-06-06
Griffin, Robert L.
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
3408255, 34082514, 3408252, 375107, 370100, H04L 700, H04L 710
Patent
active
048378500
ABSTRACT:
In a mesh telecommunication network in which a hierarchic synchronization method is used for synchronizing the clock pulses of exchanges in such network, a class identification is assigned to the clock pulses of each echange corresponding to a hierarchical order of all the exchanges in the network. To maintain synchronization regardless of changes in the network configuration or failure of interconnecting lines, a synchronization identification is additionally assigned to each exchange. Each exchange transmits its class and synchronization identifications to the exchanges connected thereto, and all the identification received at any exchange are compared to determine the exchange connected thereto having the highest class identification and the highest synchronization identification in such class. The sychronizing clock pulses of such highest order exchange are then used for synchronization. Each exchange may also add to its identifications a mark to distinguish different operating conditions of the network. The reception at each exchange of the class and synchronization identifications transmitted by exchanges connected thereto is effected within presettable time intervals.
REFERENCES:
patent: 4270211 (1981-05-01), Schlichte
patent: 4370648 (1983-01-01), Wagner et al.
patent: 4694291 (1987-09-01), Denhez et al.
PKI Technische Mitteilungen, No. 1, 1985, pp. 18-26.
Fernmelde-Praxis, Band 59; Nov. 25, 1982; pp. 887 to 910.
Hauenstein Gerhard
Kolle Erich
Maisel Manfred
Briody Thomas A.
Eason Leroy
Griffin Robert L.
Smith Ralph
Tamoshunas Algy
LandOfFree
Hierarchic synchronization method and circuit arrangement for ex does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hierarchic synchronization method and circuit arrangement for ex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hierarchic synchronization method and circuit arrangement for ex will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-46147