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Methods and systems for hybrid interfaces and architectures for optical communications

  • US 7,039,067 B2
  • Filed: 07/30/2001
  • Issued: 05/02/2006
  • Est. Priority Date: 07/30/2001
  • Status: Expired due to Fees
First Claim
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1. An optical signal interface comprising:

  • a first input port for receiving a first data stream at a first rate;

    a second input port for receiving a second data stream at a second rate, wherein said first rate is OC192 and said second rate is OC768;

    a first processing branch for receiving said first data stream, said first processing branch including;

    a demultiplexer for dividing said first data stream into a plurality of third data streams at a third rate which is less than said first rate;

    a forward error correction (FEC) unit for adding a forward error correction code to each of said plurality of third data streams to generate FEC encoded data streams; and

    a multiplexer for combining said FEC encoded data streams to output a composite FEC encoded data stream at substantially said first rate; and

    a second processing branch for receiving said second data stream, said second processing branch including;

    a demultiplexer for dividing said second data stream into a plurality of fourth data streams at a fourth rate which is less than said second rate;

    a plurality of forward error correction (FEC) units that share a common clock for adding a forward error correction code to each of said plurality of fourth data streams to generate FEC encoded data streams; and

    a multiplexer for combining said FEC encoded data streams to output a composite FEC encoded data stream at substantially said first rate.

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