Contactless battery charging device and process
US8358104B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To recharge the battery of a portable object communicating with a reader establishing communication over a modulated electromagneticfield, a recharging process is proposed. The portable object sends at least one waiting message to the reader. The said waiting message tells the reader a waiting time WTXM before the next message. The portable object uses energy from the electromagnetic field to recharge its battery during the waiting period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.