Method and apparatus for complex cascade sigma-delta modulation and single-sideband analog-to-digital conversion
US7180432B2 · kind B2 · utility
15Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Feb 27, 2004 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Mar 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/418
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A complex cascade sigma-delta modulator for analog-to-digital conversion applications. The modulator includes first and second sigma-delta modulator stages, combined with a complex digital noise cancellation circuit. In addition, analog-to-digital conversion of baseband signals using a complex sigma-delta modulator is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.