High-speed interconnection adapter having automated lane de-skew
US7197100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Oct 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An adapter that buffers received symbols and automatically determines and corrects for skew between lanes is disclosed. In one embodiment, the adapter is a part of a network that includes a first and second devices coupled together by a communications link having multiple independent serial lanes. The first device initiates communication by repeatedly transmitting a training sequence that includes a start symbol for each lane. An adapter in the second device includes a set of buffers each configured to receive the symbols conveyed by a corresponding serial lane. The buffers are coupled to a reconstruction circuit that removes one “symbol group” at a time from the buffers. A symbol group is made up of one symbol from each buffer. The reconstruction circuit removes symbol groups until a start symbol is detected. If the start symbol is not detected in all buffers, output from the buffers having start symbols is temporarily suspended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.