Digital sinusoid generator
US11092993B2 · kind B2 · utility
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4References
21Claims
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Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Feb 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/026
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A recursive digital sinusoid generator generates recursive values used in the production of a digital sinusoid output. The recursive values are generated at a first frequency. A sinusoid value generator generates replacement values at a second frequency, wherein the second frequency is less than the first frequency. The generated recursive values are periodically replaced with the generated replacement values without interrupting production of the digital sinusoid output at the first frequency. This periodic replacement effectively corrects for a finite precision error which accumulates in the recursive values over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.