Sample rate converter with sample and hold
US9571265B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Oct 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0642
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A sample rate converter for an oversampled data stream develops interpolated samples at a first oversample rate, from samples at a second oversample rate; wherein the first oversample rate is a non-integer multiple of the second oversample rate. When the samples at the second oversample rate are changing state, at least two interpolated samples are generated or the interpolation is at least second order. When the sample at the second oversample rate is not changing state, the sample at the second oversample rate is passed substantially unchanged. In one embodiment of the invention, asynchronous sample rate conversion is performed, and the first oversample rate is a varying non-integer multiple of the second oversample rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.