Apparatus and method for non-contact recharging and near field communication in a portable electronic device
US8957633B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods in a near field communication capable electronic device are disclosed. An antenna receives a near field signal from a recharging pad or a reader to provide a reception signal. A detector coupled to the antenna receives the reception signal and detects therefrom a voltage, current or power value representing a power level of the near field signal. A switch is coupled to the detector, and switches the reception signal corresponding to the recharging pad or the reader to a recharging transceiver to recharge a battery, or to a near field communication transceiver, respectively, on the basis of the detected voltage. A Hall-effect type magnetic sensor may be used as an alternative to the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.