In-band FEC encoder for sonet
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United States of America Patent
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Issued Date -
Aug 1, 2002
app pub date -
Dec 15, 2000
filing date -
Dec 15, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention achieves technical advantages as an in-band FEC encoder circuit that is comprised of individual bit FEC encoders. The total delay through the encoding circuit is nominal. The encoder circuit consists of a controller block, a checkbit generator block, a controller state machine block, an FSI bit insertion block, two different blocks to insert in checkbits, and a selection block. These blocks meet all the requirements of the Standard T1X1.5/99-218R3 and operates with both OC-48 and OC-192. In one embodiment, the total delay through the encoding system is only 14 microseconds.
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