Abstract: The invention is a method of managing a NFC transaction between two hosts and a reader device. The two hosts are embedded in NFC devices and are intended to be identified by the reader device during an anti-collision phase through a first identifier and a second identifier respectively. The first identifier comprises a variable part. The method includes the steps of generating the first identifier, the variable part of the first identifier and the second identifier comprising a common pattern, looking for a common pattern into the first and second identifiers on the reader device side, and if a common pattern is found and if the variable part of the first identifier comprises said common pattern, concluding that the first and second hosts are embedded in a unique NFC device.

Abstract: Disclosed are electronic devices and methods of electronic devices having a housing including a wireless actuator without an electrical interface, the wireless actuator located on the housing, the wireless actuator being configured to provide tactile feedback and configured to generate an acoustic signal with a unique acoustic signature upon actuation. Included is at least one accelerometer being configured to receive a mechanical or acoustic stimulus and/or an acoustic signal which can include an impulse response being a brief non-periodic and/or non-repeating signal such as a tap or a repeating signal such as a tone, to generate an identifying signal. Also included is a processor configured to receive an identifying signal to generate a control signal based on the received acoustic signal correlated to the acoustic signature. The control signal can provide initiation of any function or application of the device.