Ultrasonic universal wireless charging
US9620983B2 · kind B2 · utility
4Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems may provide for detecting a location of an adjacent ultrasonic receiver of a battery powered device relative to a charging surface of a contactless charger. The charging surface may include an ultrasonic array of transmitter sub arrays, wherein one or more of the transmitter sub arrays may be selectively activated based on the location to focus an ultrasonic beam on the adjacent ultrasonic receiver. In one example, a movement of the adjacent ultrasonic receiver may be detected and the focus of the ultrasonic beam is adjusted in response to the movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.