Portable device and battery charging method thereof
US8373388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a portable device. The portable device includes a near distance antenna, a long distance antenna, a first power generation circuit, a second power generation circuit, and a battery. The near distance antenna receives a first power source signal in an electromagnetic inductive coupling scheme. The long distance antenna receives a second power source signal in a magnetic resonance scheme. The first power generation circuit generates a power source from the first power source signal. The second power generation circuit generates a power source from the second power source signal. The battery is charged with the generated power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.