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US 2026/0074824 A1Published application
Error correction code protected transceiver systems and methods
AssigneeEridu Corporation
InventorsTing-Kuang Chiang, Drew Perkins
Life of this patent
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Abstract
Consistent with an aspect of the present disclosure, an exemplary digital communication system is provided that includes redundant or spare transceivers to handle failure events. In one example, if one of the first N+r transceivers experience a failure, spatial FEC codewords can correct the resulting bit errors and, as previously mentioned, prevent post-FEC errors from occurring. In embodiments, if a primary transceiver fails, a redundant transceiver may be activated to take its place.
Claims20
An apparatus, comprising:
- a codeword generator circuit configured to generate a forward error correction codeword having a plurality of bits, the plurality of bits including payload bits and check bits;
- a first plurality of optical transmitters, each of which being configured to receive a corresponding one of a first plurality of electrical signals whereby each of the plurality of bits is associated with a corresponding one of the first plurality of optical transmitters, such that each of the first plurality of optical transmitters provides a corresponding one of a first plurality of modulated optical signals;
- and
- a second plurality of optical transmitters, one of the second plurality of optical transmitters being operable to provide a second modulated optical signal when a fault occurs in one of the first plurality of optical transmitters, such that the second modulated optical signal carries one of the plurality of bits associated with said one of the plurality of optical transmitters including the fault.
1 more element
An apparatus, comprising:
- a codeword generator circuit configured to generate a forward error correction codeword having a plurality of bits, the plurality of bits including payload bits and check bits;
- a first plurality of optical transmitters, each of which being configured to receive a corresponding one of a first plurality of electrical signals whereby each of the plurality of bits is associated with a corresponding one of the first plurality of optical transmitters, such that each of the first plurality of optical transmitters provides a corresponding one of a first plurality of modulated optical signals;
- a second plurality of optical transmitters, one of the second plurality of optical transmitters being operable to provide a second modulated optical signal when a fault occurs in one of the first plurality of optical transmitters, such that the second modulated optical signal carries one of the plurality of bits associated with said one of the plurality of optical transmitters including the fault;
- a first plurality of optical paths, each of which being coupled to a respective one of the first plurality of optical transmitters;
- a second plurality of optical paths, each of which being coupled to a respective one of the second plurality of optical transmitters;
- a first plurality of optical receivers, each of which being coupled to a respective one of the first plurality of optical paths;
- and
- a second plurality of optical receivers, each of which being coupled to a respective one of the second plurality of optical paths.
5 more elements
An apparatus, comprising:
- a first codeword generator circuit configured to successively generate each of a plurality of first forward error correction (FEC) codewords,
- a plurality of second codeword generator circuits, wherein each bit of each of the first FEC codewords being supplied in parallel to a corresponding one of the plurality of second codeword generator circuits, each of the second codeword generator circuits supplying a corresponding one of a plurality of second FEC codewords, each of the plurality of second FEC codewords being associated with a corresponding one of a plurality of electrical signals;
- a plurality of optical transmitters, each of which receiving a corresponding one of the plurality of electrical signals, such that each of the first plurality of optical transmitters provides a corresponding one of a plurality of modulated optical signals.
Dependencies are inferred from the claim text.