Digital-to-analog converter
US7283078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2006 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Jun 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3037
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A converter of a digital signal into a pulse-width modulated signal, comprising a first conversion unit receiving, at a first frequency, successive digital signals each having one of a first determined number of values, and providing first intermediary signals, at the first frequency, each having one of a second determined number of values smaller than the first determined number; a unit performing a decimation of the first intermediary signals to provide second intermediary signals at a second frequency equal to the first frequency divided by the second determined number minus one; and a second conversion unit providing at the second frequency, from the second intermediary signals, a two-state pulse-width modulated signal having a minimum duration in one of the two states which is equal to the inverse of the first frequency, the first conversion unit receiving the pulse-width modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.