Rotational frequency detector system
US7285994B2 · kind B2 · utility
6Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2004 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Apr 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/033
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A rotational frequency detector system including a rotational frequency detector responsive to a data signal and a clock signal. The rotational frequency detector is configured to compare the frequency of the clock signal to the frequency of the data signal to define frequency up and frequency down signals that adjust the frequency of the clock signal to be equal to the frequency of the data signal. A step control system is responsive to the rotational frequency detector and a step clock signal and is configured to define predetermined pulse widths for the frequency up and frequency down signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.