Sigma-delta modulator for D-to-A converter
US4901077A · kind A · utility
24Cited by
9References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/304
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-analog converter includes a sampled data sigma-delta modulator to resample and coarsely quantize the digital samples to be converted. The coarsely quantized samples are converted to sequences of pulses which are applied to a pulse sensitive analog integrator to develop analog representations of the digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.