Portable electronic device with low power consumption

摘要

The portable electronic device (1) has a movement detector (6) that detects the characteristic voluntary movement by a wearer to supply an electric signal (14) for starting a microcontroller (2) and supply the microcontroller with electric power from a power supply unit (4). A communication unit (3) works with the microcontroller to transmit and/or receive radioelectric signals (30) to/from a terminal (20) in accordance with a contactless communication protocol.