Method and circuit for digitally correcting the frequency of a signal
US7173982B1 · kind B1 · utility
5Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2000 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0063
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a circuit for the digital correction of a frequency of a signal, especially for use in a transmitter/receiver circuit include rotating a signal “pointer” (i0, q0) using a CORDIC algorithm, through a predetermined angle in a complex I/Q plane corresponding to a correction frequency. The CORDIC algorithm includes micro-rotation blocks corresponding to N stages, and a character table and a register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.