Method of deskewing a differential signal and a system and circuit therefor
US7937605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2007 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Feb 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/5015
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-definition multimedia interface (HDMI) receiver recovers high speed encoded data which are transmitted differentially over data channels of a lossy cable, along with a clock. Inter symbol interference, high-frequency loss, skew between the clock and data channels, and differential skew within a differential signal are compensated by analog circuits which are automatically tuned for best performance by observing the quality of the recovered analog signal. Oversampling is used to provide a 24-bit digital representation of the analog signal for determining the quality of the signal. A corresponding method of deskewing a differential signal and a system and circuit therefor are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.