Digital phase locked loop frequency estimation
US10181856B2 · kind B2 · utility
2Cited by
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23Claims
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Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Dec 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0067
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Digital Phase Locked Loop (DPLL), including a Time-to-Digital Converter (TDC) configured generate quantized phase values of a Voltage Controlled Oscillator (VCO) signal; and a frequency estimation circuit configured to receive the quantized phase values, determine wraparound phase of the quantized phase values, and least-squares estimate a frequency based on the quantized phase values and the wraparound phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.