Suppressing spurious signals in direct-digital synthesizers
US11563444B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Sep 9, 2021 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Sep 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A technique for generating analog waveforms includes combining a desired, in-band signal with a randomizing, out-of-band signal at an input of a DAC, operating the DAC to generate DAC output based on a combination of the desired signal and the randomizing signal, and filtering the DAC output to pass the desired signal while removing the randomizing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.