Multi-rate sigma delta digital-to-analog converter
US8952837B2 · kind B2 · utility
27Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Sep 5, 2013 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-rate sigma delta digital-to-analog converter may include a signal input and a signal output, and multiple modulators. A first of the modulator may convert a digital input signal on the signal input to an analog output signal on the signal output. Subsequent of the multiple modulators may shape and cancel quantization noise received from a proceeding modulator. One of the modulators may operate at a higher frequency than does another of the multiple modulation loops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.