Polyphase filter control scheme for fractional resampler systems
US11949395B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2021 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Jun 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/126
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments herein describe a hardened fractional resampler that includes a fixed filter that supports simultaneous processing of N input samples with minimal additional combinational logic and no additional multipliers. In one embodiment, the fractional resampler is implemented in an integrated circuit using hardened circuit. The embodiments below exploit a pattern in the order filter phases in fractional resampling systems (such as a SSR resampling system) to use filter phases in a single fixed filter to process multiple input samples in parallel, where these filter phases would have been unused in previous resampling systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.