US 5,293,378 AGranted

Parallel multi-line packet transmission system

AssigneeNEC Corporation

InventorHiroshi Shimizu

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Abstract

A packet transmission system wherein a packet can be transmitted at a high rate over a long transmission distance using a transmission medium which is economical and easy to handle. Under the control of a transmission controller, a separating circuit divides a packet of a packet signal into six payloads to make six transmission frames and adds a start delimiter SD and an end delimiter ED to the first and last transmission frames, and four transmitters send out the six transmission frames in accordance with sequence numbers at a rate at which the signal can be transmitted by way of time division transmission lines. Under the control of a reception controller, four receivers receive the transmission frames, and a restoring circuit assembles the transmission frames back into the original packet signal in accordance with the sequence numbers and the delimiter information.

Claims9

Dependent claims

A parallel multi-line packet transmission system, comprising:

N time division transmission lines, N being an integral number equal to or greater than 2, which have successive sequence numbers applied thereto in advance;
and
transmitter/receiver means for transmitting a packet signal by way of said time division transmission lines, said transmitter/receiver means including:
separating means for dividing a packet of the packet signal into M payloads for the packet transmission and outputting the M payloads as M transmission frames, M being an integral number equal to or greater than 2;
transmitting means for adding packet length information to the original packet signal as a delimiter information, adding to each of said M transmission frames a signal representing whether or not transmission of said packet signal is started in the transmission frame, coding the outputs of said separating means, transmitting them parallelly at a predetermined rate by way of said time division transmission lines, and sending out M transmission frames into the N time division transmission lines in order of the sequence numbers;
receiving means for receiving the outputs of said transmitting means by way of said time division transmission lines and decoding the received outputs;
and
restoring means for assembling the M transmission frames received from said N time division transmission lines back into the original packet signal in accordance with the sequence numbers.

5 more elements

Dependencies are inferred from the claim text.