Analogue to digital converter and method of analogue to digital conversion with non-uniform sampling
US6492929B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/127
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analogue to digital converter generating at least two threshold levels and a comparator for comparing each of the levels with the input signal and generating a primary digital output signal to provide an indication that the input signal has crossed one of the threshold levels. The converter comprises a timer for determining the elapsed period of time between the input signal crossing a first level and the input signal crossing a second level and for generating a secondary output signal representing the elapsed time, whereby the secondary digital output signal and the corresponding primary output signal are used to provide a digital representation of the analogue input signal. The converter may also comprise a receiver of the primary digital output signal from the comparator and for providing an UP/DOWN digital output signal to indicate in which direction the input signal crossed the threshold level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.