Three-order sigma-delta modulator
US7075995B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2002 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Aug 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/43
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A three-order sigma-delta modulator having a feedback and a feedforward configuration. The three-order sigma-delta modulator includes: an analog-to-digital converter; a digital-to-analog converter; a first integrating network; a second integrating network connected in series to the first integrating network; a third integrating network connected in series to the second integrating network; and an adder, to combine a feedforward gain signal generated by passing the first output signal from the first integrating network through a feedforward gain unit with a modulation signal that is generated by passing the third output signal from the third integrating network through a modulation gain unit and to generate a desired noise transfer function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.