Asynchronous sample rate converter
US6208671A · kind A · utility
163Cited by
3References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0628
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An asynchronous sample rate converter for converting a first sample rate in a signal to a second sample rate in the same signal is presented. The signal is first provided as input to an interpolator which upsamples the signal to form a signal having sample rate UF.sub.s1 where the upsampling factor U is a variable that is directly related to the ratio F.sub.s2 /F.sub.s1. The resampler then linearly interpolates the upsampled signal to form a signal having sample rate DF.sub.s2. Finally, the resampled signal is downsampled to form a signal having sample rate F.sub.s2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.