Multiplex communications – Wide area network – Packet switching
Patent
1991-05-08
1993-04-06
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 13, 370 54, 371 82, 34082501, 340827, H04J 314
Patent
active
052009491
ABSTRACT:
A link changeover control system for a LAN of a broadcasting arrangement has one master supervisor node station and a plurality of normal node stations connected by an active LAN link path and spare LAN link paths. A pilot signal is inserted into a communication signal in the master supervisor node station and the pilot signal is detected in the normal node stations, whereby the active LAN link path is maintained to be used for communication. In the vent of the pilot signal becoming undetectable at least by one of the normal node stations, the master supervisor node station changes the link path used for communication from the acitve LAN link path to one of the spare LAN link paths and, at the same time, the normal node stations changes the link path used for communication from the active LAN link path to the spare LAN link path through which the pilot signal has become detectable.
REFERENCES:
patent: 4205201 (1980-05-01), Kahn
patent: 4442518 (1984-04-01), Morimoto
patent: 4648088 (1987-03-01), Cagle et al.
patent: 5130974 (1992-07-01), Kawamura et al.
Fujitsu Limited
Olms Douglas W.
Patel Ajit
LandOfFree
Link changeover control system for local area network of broadca does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Link changeover control system for local area network of broadca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Link changeover control system for local area network of broadca will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-541785