Coarse frequency detector system and method thereof
US7145398B2 · kind B2 · utility
5Cited by
2References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2004 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D13/003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved coarse frequency detector includes a first storage device responsive to a data signal and a sub-multiple of a clock signal for detecting a first transition in the data signal during a predetermined state of the sub-multiple of the clock signal and generating an intermediate signal, and a second storage device responsive to the data signal and the intermediate signal for detecting a second transition in the data signal having the same polarity as the first transition during the predetermined state of the sub-multiple of the clock signal and generating an up-pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.