Analogue to digital converters
US4789862A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1986 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Nov 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/428
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A linear A to D converter comprising a combiner means to which an input signal to be converted is fed, the input signal being combined subtractively or additively with an analogue feedback signal, and the combiner means being arranged to feed an A to D flash converter via an amplifier, which A to D flash converter is arranged to feed a D to A converter which provides the feedback signal. The D to A converter comprises a digital overflowing accumulator also arranged to drive a finite impulse response filter having a plurality of serially coupled one bit delay elements, output signals from which are summed to provide the digital output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.