Per-element resampling for a digital-to-analog converter
US6812878B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Apr 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/74
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-analog converter (DAC) and method for converting digital inputs into analog outputs utilizes resampling switches to regulate the transmission of partial analog signals between analog output elements and a summing circuit to reduce or eliminate “glitches” in the output signal. Each resampling switch may be individually connected to an analog output element to handle a fixed partial analog signal, e.g., a fixed current, generated by that analog output element. Consequently, the resampling switches can be used to reduce or eliminate the glitches in the output signal without introducing switch nonlinearity into the output signal by simultaneously transmitting the partial analog signals to the summing circuit using the resampling switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.