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US 2025/0030457 A1Published application
Control method for an nfc device
AssigneeSTMicroelectronics International N.V.
InventorsJeremy QUIGNON, Nicolas CORDIER
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Abstract
The present description concerns a method of controlling a first NFC device comprising an NFC controller coupled to an antenna, wherein a mode of charge of a second remote NFC device by the antenna is interrupted as a result of a detection, by the NFC controller, of an impedance change of the antenna, the interruption being followed by the starting of a communication, via the antenna, with a third remote NFC device.
Claims20
A method of controlling a first NFC device comprising an NFC controller coupled to an antenna, wherein the method comprises:
- interrupting, by the NFC controller, a mode of charge of a second remote NFC device by the antenna as a result of a detection, by the NFC controller, of an impedance change of the antenna;
- and
- starting, following the interrupting, a communication with a third remote NFC device via the antenna.
An NFC device comprising:
- an NFC controller coupled to an antenna;
- wherein the NFC controller is configured to:
- interrupt a mode of charge of a second remote NFC device by the antenna as a result of a detection, by the NFC controller, of an impedance change of the antenna;
- and
- start, following the interrupt, a communication with a third remote NFC device via the antenna.
2 more elements
Dependencies are inferred from the claim text.