Robust low rate data channel in LPI mode for energy-efficient ethernet applications
US9577787B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication technique for energy efficient Ethernet (EEE) employs a systematic block forward error correcting code (FEC). The technique aligns a low power idle (LPI) refresh signal with the FEC frame. The refresh signal includes a known reference sequence, FEC systematic symbols, and FEC parity symbols. The technique may apply shortened FEC encoding and decoding on the partial data symbols and the parity symbols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.