Inductively chargeable earbud case
US10206474B2 · kind B2 · utility
35Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2017 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A case a portable listening device. The case includes a housing having an interior space to receive the portable listening device; a lid attached to the housing; a rechargeable battery and first and second wireless power receiving elements configured to receive electric charge from a wireless power transmitter during a charging event. The case further includes switching circuitry that is configured to disable one of the first or second wireless power receiving elements during a charging event when the disabled element is receiving power less efficiently than the other element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.