Timing recovery for in-band communication in inductive power transfer systems
US12425179B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2024 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Apr 12, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A clock recovery system for recovering an in-band communication clock in a wireless power transfer system can in include: a phase locked loop; and a bit decision block and a multiplexer that cooperate to selectively provide the error signal to the loop filter responsive to detected bits in the in-band communication bitstream. The phase locked loop can further include: a phase detector that computes an error signal from a difference between an instantaneous peak location and an estimated peak location correlated to a symbol in an in-band communication bitstream; a loop filter that selectively receives the error signal; and a voltage controlled oscillator that adjusts its output frequency responsive to an output of the loop filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.