Packet demultiplexing of a mac/packet broadcast signal

Details Packet demultiplexing of a mac/packet broadcast signal Packet demultiplexing of a mac/packet broadcast signal

1987-02-20

1988-05-31

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 88, H04J 324

Patent

active

047486198

ABSTRACT:
The device is for use in demultiplexing a MAC/PACKET incoming signal which comprises successive bursts of digital data distributed into packets, each packet consisting of useful data and a header having a channel number indicating one of a plurality of service components to which said packet is assigned, a continuity index IC and a header error protection code. The device has a circuit for generating all error-free configurations of a selected channel number and IC and corresponding to a respective service component; an encoder for encoding all error-free configurations into all possible theoretical header configurations having the error protection code; and a computer for computing the Hamming distances between each packet header in the incoming signal and all theoretical header configurations. Those packets for which the Hamming distance is not greater than a predetermined value are directed to an output interface.

REFERENCES:
patent: 4347498 (1982-08-01), Lee et al.
patent: 4598400 (1986-07-01), Hillis
patent: 4651318 (1987-03-01), Luderer
patent: 4701909 (1987-10-01), Kavehrad et al.

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