Multiplex communications – Wide area network – Packet switching
Patent
1991-08-07
1993-12-07
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 856, 3408255, H04J 324, H04J 302
Patent
active
052689026
ABSTRACT:
A data transmission apparatus includes a word number counting control portion and an arbitration portion. The word number counting control portion generates a transmission acknowledging signal in response to a transmission acknowledging signal received from a first data transmission path. The arbitration portion receives the transmission acknowledging signal from the word number counting control portion and a transmission acknowledging signal from a second data transmission path and applies transmission acknowledging signals to either the first data transmission path or the second data transmission path in the order of arrival. Packets are transmitted to a memory control portion in the succeeding stage from the data transmission path to which the transmission acknowledging signals are applied. Any of the packets includes a flag. The word number counting portion dynamically changes the number of packets to be successively transmitted from the first data transmission path to the memory control portion in response to the flag.
REFERENCES:
patent: 4677616 (1987-06-01), Franklin
patent: 4736369 (1988-04-01), Barzilai et al.
patent: 4970714 (1990-11-01), Chen et al.
patent: 4985890 (1991-01-01), Matsumoto et al.
patent: 5008880 (1991-04-01), Azuma
patent: 5063562 (1991-11-01), Barzilai et al.
Olms Douglas W.
Patel Ajit
Sharp Kabushiki Kaisha
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