Multiplex communications – Wide area network – Packet switching
Patent
1992-06-02
1994-05-17
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 80, 370 941, 370112, H04J 317, H04J 324
Patent
active
053134583
ABSTRACT:
To suppress the amount of data frames passing through a public network and to provide advantages for both the telephone company and subscribers, a traffic control system is provided for controlling traffic in data frames transmitted between a public network and a subscriber through channels. Each data frame consists of a header and a payload. The header includes a predetermined bit indicating whether or not the payload includes traffic data. The system comprises, between the public network and the subscriber, a traffic control unit that includes channel filters each for receiving data frames from the subscriber through the corresponding channel, and for transmitting each data frame to the public network only when the predetermined bit in the header of the data frame indicates that the payload includes traffic data, and a channel reproducing unit for receiving data frames from the public network, and for reproducing an omitted data frame that has been discarded, to transmit the received data frames and the reproduced data frame to the subscriber.
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Fujitsu Limited
Hsu Alpus H.
Olms Douglas W.
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