Optical clock recovery using feedback phase rotator with non-linear compensation
US10187197B2 · kind B2 · utility
6Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Jul 23, 2018 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jul 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for clock recovery that may include obtaining an output signal from a phase locked loop (PLL) device. The method may further include determining, using a digital phase detector, the output signal, and a transmitter clock signal, an amount of phase difference between the output signal and the transmitter clock signal. The method may further include filtering, using a phase rotator and a digital accumulator, a portion of the amount of phase difference from the output signal to generate a filtered signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.