Patent ID: 9363350
Filing Date: 2016-06-07
CPC Classification: H04M

Claim Text:
1. A method for detecting a hand in proximity to an electronic device, the electronic device including a near field communications (NFC) antenna and an infrared sensor that emits infrared light, the method comprising: monitoring an induced voltage at the NFC antenna, the NFC antenna provided in an NFC subsystem configured to communicate wirelessly according to an NFC protocol, the NFC protocol operating with a working distance of 4 cm or less; determining whether the hand is in proximity to the electronic device based on the induced voltage; receiving a reflection of the emitted infrared light; determining whether a head is in proximity to the electronic device based on the reflection; and selecting a power output state from a plurality of possible power output states provided by the electronic device, the selection based on both the determination of whether the head is in proximity to the electronic device and the determination of whether the hand is in proximity to the electronic device.