Circuit arrangement for frequency determination
US8493058B2 · kind B2 · utility
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7References
8Claims
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Key dates
| Filing date | Feb 25, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and a method for frequency analysis. The frequency of an output signal is divided, and an auxiliary signal with a known frequency is subtracted from the low-frequency signal to define a low-frequency differential signal. The output frequency is determined on the basis of the frequency of the low-frequency differential signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.