Predictive analog-to-digital converter and methods thereof
US8009072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Dec 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Predictive Analog-to-Digital Converter system in one embodiment includes a sampling section producing a sampled analog input signal with a first summer section combining the sampled analog input signal and an analog prediction signal to produce an analog prediction error signal. There is at least one error analog-to-digital convertor digitizing the analog prediction error signal, wherein a digital error signal output from the error analog-to-digital convertor is one of a full bitwidth error signal during an over-range condition else a lower bitwidth error signal. A second summer is coupled to the digital error signal output and a digital prediction signal, and generates a full bitwidth digital output signal. A feedback section is coupled to the digital output signal and providing the digital prediction signal and the analog prediction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.