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US 2020/0052937 A1Published application
Data communication systems with forward error correction
AssigneeInphi Corporation
InventorsArun TIRUVUR, Jamal RIANI, Sudeep BHOJA
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Abstract
Embodiments of the present invention include an apparatus that receives date from multiple lanes, which are then aligned and synchronized for transcoding and encoding.
Claims20
A communication apparatus operable in 25G, 40G, 50G, and 100G modes, the apparatus comprising:
- a plurality of communication lanes, each of communication lanes being configured to receive data streams;
- a plurality of virtual lane lock modules corresponding to the plurality of communication lanes, the virtual lane lock modules being configured to provide protocol locking at a first clock rate;
- a plurality of de-skewing buffers for aligning data streams of the plurality of communication lanes;
- a transcoder module being configured to generate alternating data streams from the de-skewed data stream, the transcoder being configured to operate at a second clock rate, the transcoder being operative in two or more modes;
- an FEC module being configured to encode the alternating data streams to generate a first encoded data stream and a second encoded data stream at a first bit size and a first cycle number;
- and
- a first gearbox configured to process the first encoded data stream at a second bit size and a second cycle number.
4 more elements
A communication apparatus comprising:
- a plurality of virtual lane lock modules configured to provide protocol locking at a first clock rate based on received data streams;
- a plurality of de-skewing buffers for aligning data streams of the plurality of communication lanes;
- a transcoder module being configured to generate alternating data streams from the de-skewed data stream, the transcoder being configured to operate at a second clock rate, the transcoder being operative in two or more modes;
- an FEC module being configured to encode the alternating data streams to generate a first encoded data stream and a second encoded data stream at a first bit size and a first cycle number;
- a first gearbox configured to process the first encoded data stream at a second bit size and a second cycle number;
- a second gearbox configured to process the second encoded data stream at the second bit size and the second cycle number;
- and
- a pattern generator coupled to the first gearbox.
5 more elements
A communication apparatus comprising:
- a plurality of virtual lane lock modules configured to provide protocol locking at a first clock rate based on received data streams;
- an alignment module being configured to generate an aligned data stream based on locked streams from the plurality of virtual lane lock modules, the alignment module being configured to operate at a second clock rate, the aligned data stream comprising a first plurality of words, the first plurality of words being characterized by a first word length;
- a transcoder module being configured to generate alternating data streams based using the aligned data stream, the transcoder being configured to operate at a third clock rate, the alternating data streams comprising a second plurality of words, the second plurality of words being characterized by a second word length, the transcoder being operative in two or more modes;
- and
- an FEC module being configured to encode the alternating data streams to generate an encoded data stream at a first bit size;
- a gearbox configured to process the encoded data stream at a second bit size;
- and
- a pattern generator coupled to the gearbox.
5 more elements
Dependencies are inferred from the claim text.