Multiplex communications – Wide area network – Packet switching
Patent
1982-02-24
1984-08-07
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04J 600
Patent
active
044647492
ABSTRACT:
A bus accessing system for permitting a plurality of bus information units (BIUs) to sequentially gain access to an information bus utilizes a bidirectional token flow process in which the right to transmit a packet of information on the bus is transmitted from BIU to BIU by the passing of a virtual token. No two BIUs receive a token at the same time, whereby only one BIU will have the right to place its information packet on the bus at any given instant. Each BIU calculates a token time interval, unique to each respective BIU, beginning at receipt of a start-up packet, as a function of its logical position on the bus.
REFERENCES:
patent: 3593290 (1971-07-01), Kerr
patent: 3597549 (1971-08-01), Farmer
patent: 3796992 (1974-03-01), Nakamura et al.
patent: 3851104 (1974-11-01), Willard et al.
patent: 4063220 (1977-12-01), Metcalfe et al.
patent: 4210780 (1980-07-01), Hopkins et al.
patent: 4229792 (1980-10-01), Jensen et al.
patent: 4293948 (1981-10-01), Soderblom
patent: 4387425 (1983-06-01), El-Gohary
"Bidirectional Token Flow System", by Ulug et al., Proceedings Seventh Data Communications Symposium, Mexico City, Mexico, Oct. 27-29, 1981.
Fouad A. Tobagi, "Multiaccess Protocols in Packet Communication Systems," IEEE Transactions on Communications, vol. Com-28, No. 4, Apr. 1980, pp. 468-488.
Davis Jr. James C.
General Electric Company
Lacomis Bernard J.
Olms Douglas W.
LandOfFree
Bi-directional token flow system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bi-directional token flow system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-directional token flow system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-606240