Digital resampling method and apparatus
US11018777B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 25, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0017
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for digital resampling in a digital communications receiver is described. The method comprises selecting whole samples of a received input signal in the time domain and implementing sub-sample digital interpolation in the frequency domain. This amounts to performing the time shift of the interpolation process in the frequency domain. The method may be performed in conjunction with the operation of a polarisation recovery filter. A digital communications receiver is also provided the receiver being arranged to perform frequency domain sub-sample interpolation on an input data signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.