Transmission system using forward error correction

Details Transmission system using forward error correction Transmission system using forward error correction

1986-07-16

1988-07-05

Cangialosi, Salvatore

Multiplex communications

Wide area network

Packet switching

370102, H04J 312

Patent

active

047559934

ABSTRACT:
In a high-speed fiber-optic transmission system, data streams are synchronized using fixed stuffing before being multiplexed for transmission. The fixed stuffing information is replaced with forward error correction (FEC) information, whereby FEC is effected without any increase in transmission speed. FEC information blocks of each data stream can be synchronized to the frame timing of the transmission system, or they can be relatively unsynchronized. In the latter case, an FEC decoder acts in a self-framing manner to synchronize itself to the FEC information blocks of the respective data stream.

REFERENCES:
patent: 3412380 (1968-11-01), Heller et al.
patent: 3931473 (1976-01-01), Ferris, Jr.
patent: 4053715 (1977-10-01), Drapkin
patent: 4224473 (1980-09-01), Kaul et al.
patent: 4507779 (1985-03-01), Barner, Jr. et al.
patent: 4616361 (1986-10-01), Strehl
patent: 4689790 (1987-08-01), Lacroix et al.

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