Time-alignment of signals suffering from quadrature errors
US9628319B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Aug 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/36
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data is received characterizing a first signal and a second signal. The first signal and a function of the second signal is compared at a plurality of time-shifts to estimate a time-difference between the first signal and the second signal. The function of the second signal includes the second signal, a complex conjugate of the second signal, and a constant. The comparison is provided. At least one of receiving, comparing, and providing is performed by at least one processor of at least one computing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.