Multiple output oversampling A/D converter with each output containing data and noise
US4876542A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/418
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oversampling converter for converting an analog input signal to a high resolution digital equivalent is provided. The oversampling converter uses sigma delta modulation utilizing single integration. A plurality of quantization circuits provide a plurality of output signals, each output signal containing data information and an error component. Each quantization circuit performs an integration of a difference of an input signal and a feedback signal before quantizing the integrated signal as one of the output signals. A filter, such as a decimation filter, is coupled to the converter for receiving the multiple outputs of the converter and providing a filtered converted digital output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.