Wireless battery charging of electronic devices such as wireless headsets/headphones
US7548040B2 · kind B2 · utility
173Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2006 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Feb 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This disclosure relates to wireless battery charging of electronic devices such as wireless headsets/headphones. In one embodiment, an electronic device is provided comprising a speaker comprising a coil, and the coil is operative both to cause the speaker to produce sound and to receive energy transferred to the coil via inductive coupling. The received energy is used to recharge a rechargeable battery in the electronic device. In other embodiments, the coil used to receive the energy that recharges the battery is received by a coil other than the coil in the speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.