APPARATUS AND METHOD FOR NON-CONTACT RECHARGING AND NEAR FIELD COMMUNICATION IN A PORTABLE ELECTRONIC DEVICE

摘要

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.

主权项

1. An apparatus comprising:
an antenna capable of receiving or transmitting a first signal to be used for near field communication; and a controller operatively coupled to the antenna, the controller configured to:
receive a second signal, via the antenna, from an electronic device external to the apparatus;determine whether the electronic device comprises a charging device, based at least in part on the signal; andcause the antenna to be coupled to charging circuitry based at least in part on the determining.