Multiplexed multilane hybrid scrambled transmission coding
US7949134B2 · kind B2 · utility
3Cited by
5References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Mar 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a hybrid backplane coding scheme transmits data using lengthy sequences of scrambled data, separated by 8b/10b control character sequences that prepare the receiver for the next scrambled sequence and permit realignment if necessary. Several lanes are coded separately in this manner, and then multiplexed on a common channel. Alignment sequences in the control character sequences, as well as scrambler seeds, are set to avoid synchronization of patterns generated among all lanes, which would tend to confuse a receiving serdes and/or phase-locked loop that recovers timing from the multiplexed scrambled signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.