Patent attributes
The present invention relates to a transmission reception multimedia apparatus (20) comprising a circuit for communication (9, 8, 10, 3, 7) with means for connection to an audiovisual communication network (21) characterized in that it comprises:a connector (11) of a bus for communication with a source apparatus (17) comprising at least one conductor (VBUS) for the transmission of a supply voltage providing by the source apparatus (17);means of detection (1) of the presence of the said supply voltage, the said means of detection (1) being linked to the connector (11), the said means of detection (1) generating, a detection signal on the appearance of the supply voltage, bound for the communication circuit (9, 8, 10, 3, 7), the said communication circuit (9, 8, 10, 3, 7) being linked to the means of detection, so as to switch via a switching circuit (3) the multimedia apparatus (20) from a first operating mode, termed standby, in which the communication circuit (9, 8, 10, 3, 7) has the minimum of active functions to a second operating mode, termed wakeup, in which the communication circuit (9, 8, 10, 3, 7) has its function of communication, between the connector (11) and the audiovisual network, activated, the switching being consequent upon the appearance of the bus supply voltage.
