Circuitry for converting a sampled digital signal to a naturally sampled digital signal and method therefor
US6665338B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M5/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention deal generally with circuitry and methods for converting a sampled digital signal (32) to a naturally sampled digital signal (34). One embodiment relating to a method includes receiving the sampled digital signal, calculating a duty ratio estimate (33) using feedback (52), and using interpolation (62) to determine the naturally sampled digital signal. Circuitry for converting a sampled digital signal (32) to a naturally sampled digital signal (34) includes a natural sampler, where the natural sampler includes an input to receive the sampled digital signal (32) and an input to receive a feedback signal (52). The natural sampler has an output to provide the naturally sampled digital signal (34). In one embodiment, the natural sampler calculates a duty ratio (33) using the feedback signal (52) and uses interpolation to determine the naturally sampled digital signal (34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.