Phase detector utilizing analog-to-digital converter components
US7750831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2008 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Oct 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for an improved phase detector utilizing analog-to-digital converter (ADC) components. In an embodiment, the method includes from an ADC having a sampling clock signal that determines sampling instants, obtaining a first comparison value between an analog signal and a first threshold voltage at a first sampling instant, and obtaining a second comparison value between the analog signal and a second threshold voltage at a second sampling instant. The method further includes, from a supplemental circuit, obtaining a third comparison value between the analog signal and a third threshold voltage at a third sampling instant between the first and second sampling instants. The method further includes processing the first, second, and third comparison values to determine a phase relationship between the analog signal and the sampling clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.