Multiplex communications – Wide area network – Packet switching
Patent
1988-04-04
1990-04-03
Griffin, Robert L.
Multiplex communications
Wide area network
Packet switching
370 851, 371 33, H04J 324, H04J 302, H04L 118
Patent
active
049146548
ABSTRACT:
A multiplex transmission system, in which one of a plurality of nodes, as a transmission node, mutually coupled together through a transmission path transmits data frame by frame to at least one of other nodes as at least one of reception node, and the reception node returns a reception acknowledge signal to the transmitting node upon proper reception of the frame of data. A reception acknowledge signal area comprising a plurality of bits is provided following the frame transmitted from the transmitting node. The reception acknowledge signal area is divided into a plurality of bit areas which are respectively assigned to the plurality of nodes. The reception node returns the reception acknowlege signal to the transmitting node from the respectively-assigned bit areas of the reception acknowledge signal area. As desired, a destination designation area having the same length as the reception acknowledge signal area is provided in a frame and is divided into a plurality of bit areas which are respectively assigned with the plurality of nodes. The individual destination nodes are specified by the respective bit areas of the destination designation area of the frame. Preferably, a pulse width modulation code for discriminating the binary logic based on the size of the pulse width is used as a transmission code at least in the reception acknowledge signal area.
REFERENCES:
patent: 3676846 (1972-07-01), Busch
patent: 4577308 (1986-05-01), Larson et al.
patent: 4706082 (1987-10-01), Miesterfeld et al.
patent: 4715031 (1987-12-01), Crawford et al.
patent: 4719458 (1988-01-01), Miesterfeld et al.
Anthony J. Bazzini et al "Serial Bus Structures for Automotive Applications" SAE Paper 830536.
Wayne J. Johnson et al, "A Proposal for a Vehicle Network Protocol Standard," SAE Paper 860392.
Ronald L. Mitchell, "A Small Area Network for Cars," SAE Paper 840317.
S. B. Carlo et al, "A Broadcast Protocol for File Transfer to Mulitple Site", IEEE Transactions On Communications, vol. COM-29, No. 22, Nov. 1981.
Hashimoto Kyousuke
Himono Yusaku
Inoue Kiyoshi
Inoue Teruhisa
Matsuda Yutaka
Chin Wellington
Furukawa Electric Co. Ltd.
Griffin Robert L.
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