Synchronous detection method and device
US7545887B2 · kind B2 · utility
2Cited by
2References
24Claims
0Family size
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Key dates
| Filing date | Aug 26, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Oct 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a synchronous detection method, an input signal is averaged over at least first and second phase ranges of a target carrier wave within each period thereof to obtain at least first and second moving average values of the input signal within the at least first and second phase ranges, respectively. The first phase range corresponds to a positively oscillating phase range of the target carrier wave, and the second phase range corresponds to a negatively oscillating phase range thereof. A difference between the first and second moving averages is calculated as a detection result of the target carrier wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.