Wireless charging for headphones
US10841684B2 · kind B2 · utility
2Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2019 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Jan 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/17
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In some implementations, a headphone device includes an earpiece housing, a speaker in the earpiece housing configured to produce audio, and a wireless charging coil having a first portion that extends outside the earpiece housing and a second portion that extends within the earpiece housing. A battery charging circuit is coupled to the wireless charging coil, and the battery charging circuit is configured to charge a battery of the headphone device based on electrical current induced in the wireless charging coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.