System for switching between stand-by and wake-up states, of an information processing unit and of an analogue switch

摘要

In this system including a switching device (21) interposed between an information processing unit (22) and an analogue switch (23), in which the unit includes an analogue information input (24) and a wake-up information input (25) originating from an output of the switch, the unit includes a stand-by/wake-up state control output (27) for the device, and this device includes a switch facility (28) openable by the state control output, and which is interposed between the output of the switch and a comparator (29) adapted so as to compare the output from the switch with a reference level so as to deliver a corresponding command at the wake-up information input, and a switch facility (30) closeable by the state control output, and which is interposed between the output of the switch and the analogue information input (24).