PROCEDE ET DISPOSITIF DE DETECTION DE LA DECONNEXION D'UN PERIPHERIQUE A UN EQUIPEMENT

摘要

The device (101) has an electrical connection (115) to carry a clock signal. A resistor (117) connected to an electrical ground (119) maintains the signal conveyed by the link to a low potential level when a crypto ignition key stopper (102) is disconnected. The stopper includes a polarized resistor (121) so that the signal reaches a high potential level when the stopper is connected to the device. A signal status measurement module (113) generates an indicator signal when the transported signal remains at the low level longer than a predetermined time. Independent claims are also included for the following: (1) a method for detecting disconnection of a peripheral to a bus (2) a radio communication terminal.