Method and apparatus for time alignment of analog and digital pathways in a digital radio receiver
US9768948B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.