Precision complex sinusoid generation using limited processing
US6981011B1 · kind B1 · utility
3Cited by
11References
20Claims
0Family size
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Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Apr 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/03
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first value of a sinusoidal-shaped electronic signal is computed based on a Lagrange interpolation using an update phase-angle associated with the electronic signal, a first set of equally-spaced data-values that generally describe the sinusoidal function and a second set of pre-calculated-values, which are based on spacing differences between the data-values. The first value can then be used to update the electronic signal or used to update another signal, such as a communication signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.