Earphone charging case with adapter function
US11996728B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/17
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an earphone charging case with adapter function, which comprises an AC/DC conversion circuit, a DC power output circuit and an earphone charging circuit. The DC power output circuit has a charging protocol circuit. The AC/DC conversion circuit is connected with the charging protocol circuit, the charging protocol circuit is connected with the earphone charging circuit, and the AC/DC conversion circuit is configured for accessing an alternating current and converting AC into DC. The earphone charging circuit is configured for charging a battery in the earphone charging case and earphones, and the DC power output circuit is configured for charging mobile terminals. Due to combination of two functions, the consumers will reduce purchase of single-function electronic products, and thus preventing more products from being idle; achieving optimization of product functions, playing a leading role in environmental protection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.