Patent ID: 11916616
Assignee: NXP B.V.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A near field communication, NFC, device, comprising:
an NFC unit configured to charge an external device under charge by transferring power to said device under charge through an NFC channel;
a detection unit configured to detect predefined events occurring on the NFC channel when said power is being transferred to the device under charge; and
a processing unit configured to control the transferring of power to the device under charge in dependence on the events detected by the detection unit;
wherein the processing unit is further configured to disable, at least in part, a receiver comprised in the NFC unit when said power is being transferred to the device under charge;
wherein the detection unit includes a receiver signal monitor configured to monitor signal changes in a receiver path of the NFC unit, wherein said signal changes in the receiver path are indicative of one or more of the predefined events;
wherein the detection unit includes a transmitter current monitor configured to monitor signal changes in a supply current path to a transmitter of the NFC unit, wherein said signal changes in the supply current path are indicative of one or more of the predefined events; and
wherein the detection unit further includes a decoder configured to decode digital inputs received via the receiver signal monitor and the transmitter current monitor into detected events, and to notify the processing unit of said detected events.