Four-order sigma-delta modulator
US6587063B1 · kind B1 · utility
8Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jun 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/454
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A four-order sigma-delta modulator. The modulator implements a feedback and a feedforward configuration, so that the desired noise transfer function is carried out by adjusting the coefficients of the feedback and the feedforward. The four-order sigma-delta modulator includes: an analog-to-digital converter, a digital-to-analog converter, a first integrating network, a second integrating network, a third integrating network, a fourth integrating network, and an adder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.