ASK modulation
US11218347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In accordance with some embodiments of the present invention, a wireless power receiver that ramps an ASK impedance is presented. A method of amplitude shift key (ASK) modulation in a wireless power receiver includes initiating transition of an ASK impedance from a first state to a second state, the ASK impedance being coupled to a resonant circuit that includes a wireless power receive coil that receives a time-varying magnetic field; transitioning the ASK impedance from the first state to the second state according to the transition over a plurality of switching cycles of the time-varying magnetic field; and holding the second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.