System and method employing a reduced NCO lookup table
US6167102A · kind A · utility
8Cited by
6References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Aug 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2684
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for reducing the computational complexity of the calculations performed by a Numerically Controlled Oscillator (NCO). Through exploitation of mathematical symmetries and other techniques, the size of a lookup table of sinusoidal values employed by the NCO to approximate sinusoids may be reduced by the combination of different frequency shifts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.