Data-signal-recovery circuit, data-signal-characterizing circuit, and related integrated circuits, systems, and methods
US7643576B2 · kind B2 · utility
10Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2004 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Oct 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0334
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A data-signal-recovery circuit includes a flip-flop and a controller. The flip-flop has an adjustable sampling threshold, and, in response to a sampling clock, is operable to generate a recovered digital signal having a first level if an input data signal is above the threshold and having a second level if the input data signal is below the threshold. The controller is operable to adjust the threshold and phase shift of the sampling clock. Because the flip-flop has an adjustable sampling threshold, one can calibrate the flip-flop to the characteristics of the eye pattern at the flip-flop's input node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.