Fractional-decimation signal processing
US7466247B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2007 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Oct 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M5/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods for processing waveforms may include decimating an over-sampled waveform by identifying samples for which the sample's position within a data period indicates that is closest to a selected time within a data period. In some example applications, the selected time may be determined as a preferred time to sample the waveform within a data period. In an illustrative example, a sequence of samples representing an over-sampled waveform may be reduced by identifying a sample in each data period that is closest in time to the selected time. In another illustrative example, a sample within each data period may be identified if it falls within a range that is a function of the selected time within the data period and an integral ratio of a sample period to the data period. The identified samples may be used to reconstruct the original waveform with fewer samples than the over-sampled waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.