Oversampling sigma-delta modulator
US5870048A · kind A · utility
40Cited by
3References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/414
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Based on the recently developed MASH (multistage noise shaping) architecture, an improved architecture--uni-MASH which employs the time-division concept for architecture and circuit reuse is proposed. An oversampling sigma-delta modulator having uni-MASH architecture uses a single stage of time- and capacitor-integrator in lieu of multiple stages of integrators, digital-to-analog converters and quantizers used in the MASH architecture. Uni-MASH retains robust stability and high-ordered noise shaping factor of MASH's virtues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.