Abstract: An electronic device is disclosed. According to at least one embodiment, the device includes a front-end module having at least one front-end connector, adapted to be connected to a cable adapted for receiving electrical signal, a reception module adapted to receive an electrical signal from the front-end connector, a back-end module configured to process an electrical signal, an interfacing module comprising at least an isolation module adapted to transmit, to the back-end module, an electrical signal received from the front-end module.

Abstract: Method for detecting a connection of a peripheral device to a communication interface of an electronic device and associated detection circuit; the communication interface comprising a voltage power line for the power supply of a peripheral device, a range of nominal operating voltage values being associated with the power line, the method being characterized in that it comprises steps of application of a nominal voltage comprised in the range of nominal operating voltage values to the power line, of withdrawal of the nominal operating voltage applied to the power line, of detection, on the power line, in the presence of a residual voltage less than a threshold value of the nominal voltage value, of a transient signal resulting from the connection of the peripheral device to the interface, and of application of the nominal voltage to the voltage power line, according to the transient signal detected.

Abstract: The invention relates to a device and a method for sequentially starting USB peripherals in order to optimise the supply of electrical power. Using current profiles corresponding to the start-up of peripherals, the connected peripherals are started one after the other. The delay between each start-up corresponds to the time necessary for the current consumption stabilisation of the peripheral being started. The profiles are stored by the device. During the start-up, the invention identifies the connected peripheral and searches for its start-up profile in the stored profiles, in order to determine the start-up delay to apply to the next peripheral.

Abstract: The present invention generally relates to a method and device for handling of audio/video signals originating from a mix of analog and digital sources of audio/video signals. In particular, the present invention relates to optimization of hardware resources and of wiring needed for the interconnection of various analog and digital sources of audio/video signals.

Abstract: Method for detecting a connection of a peripheral device to a communication interface of an electronic device and associated detection circuit; the communication interface comprising a voltage power line for the power supply of a peripheral device, a range of nominal operating voltage values being associated with the power line, the method being characterised in that it comprises steps of application of a nominal voltage comprised in the range of nominal operating voltage values to the power line, of withdrawal of the nominal operating voltage applied to the power line, of detection, on the power line, in the presence of a residual voltage less than a threshold value of the nominal voltage value, of a transient signal resulting from the connection of the peripheral device to the interface, and of application of the nominal voltage to the voltage power line, according to the transient signal detected.

Abstract: The present invention relates to a control method for the operation of a fan equipping an electronic device. A determination step detects the vertical or horizontal position of the electronic device. The fan is not started up during the powering up of the device while the device is in a vertical position. The flow of air produced by the “fireplace” effect in the device in a vertical position suffices to ensure correct ventilation. According to an improvement the device has a sensor measuring the internal temperature of the device, whatever the position of the device, the fan being started up from a determined temperature. The present invention relates also to a device implementing the method.

Abstract: A generation method of an analogue signal generated by a PWM signal whose cyclic ratio and period are parametrizable is discussed. It is thus possible choose the pair formed from the cyclic ratio and the period producing an analogue value that is the closest to the value corresponding to the programmed command value. But the differences between the analogue values can be very great and generate zones of imprecision of variable width. Outside of these zones, the generated analogue signal is very precise. Therefore, when the command value associated with a pair is imprecise, a digital shift is applied to the command value at the same time as the application of an analogue shift means. Both shifts have the same amplitude and of opposite directions such that the cancel each other out, producing a precise analogue value. A device for generating an analogue signal implementing the method is also discussed.

Abstract: The present invention generally relates to a method and device for handling of audio/video signals originating from a mix of analog and digital sources of audio/video signals. In particular, the present invention relates to optimization of hardware resources and of wiring needed for the interconnection of various analog and digital sources of audio/video signals.

Abstract: The present invention relates to a generation method of an analogue signal generated by a PWM signal whose cyclic ratio and period are parametrizable. It is thus possible choose the pair formed from the cyclic ratio and the period producing an analogue value that is the closest to the value corresponding to the programmed command value. But the differences between the analogue values can be very great and generate zones of imprecision of variable width. Outside of these zones, the generated analogue signal is very precise. As a result, when the command value associated with a pair is imprecise, a digital shift is applied to the command value at the same time as the application of an analogue shift means. Both shifts have the same amplitude and of opposite directions such that the cancel each other out, producing a precise analogue value. The present invention also relates to a device for generating an analogue signal implementing the method.

Abstract: 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 f

Abstract: The present invention relates to a generation method of a variation form of an analogue signal generated by a PWM signal whose cyclic ratio and period are programmable. A signal can thus be generated whose evolution is linear over time. A succession of generation steps of a PWM signal during which different period and cyclic ratio values are applied, as well as pairs have different periods with the same cyclic ratio, thus enabling the analogue signal to be varied with great precision. According to an improvement, each generation step of a new PWM signal with different period and cyclic ratio values is applied over time slots of equal time. The present invention also relates to a generation system of a variable analogue signal implementing the method.

Abstract: The present invention relates to a control method for the operation of a fan equipping an electronic device. A determination step detects the vertical or horizontal position of the electronic device. The fan is not started up during the powering up of the device while the device is in a vertical position. The flow of air produced by the “fireplace” effect in the device in a vertical position suffices to ensure correct ventilation. According to an improvement the device has a sensor measuring the internal temperature of the device, whatever the position of the device, the fan being started up from a determined temperature. The present invention relates also to a device implementing the method.

Abstract: The present invention relates to a generation method of a variation form of an analogue signal generated by a PWM signal whose cyclic ratio and period are programmable. A signal can thus be generated whose evolution is linear over time. A succession of generation steps of a PWM signal during which different period and cyclic ratio values are applied, as well as pairs have different periods with the same cyclic ratio, thus enabling the analogue signal to be varied with great precision. According to an improvement, each generation step of a new PWM signal with different period and cyclic ratio values is applied over time slots of equal time. The present invention also relates to a generation system of a variable analogue signal implementing the method.

Abstract: A signaling router which receives messages coming from terminals or from other signaling routers, correlates a new message with a previously received message, and forwards the new message to a signaling router associated with the previously received message is presented.

Abstract: The present invention relates to an apparatus for receiving audio-visual programs comprising a circuit for communication with means of connection to a bi-directional communication network, wherein the apparatus comprises: a first connector comprising at least one conductor for the transmission of a supply voltage (VBUS) originating from the master apparatus, at least one second connector allowing the connection of at least one peripheral device, a splitter connected on the one hand to the first connector and the at least one second connectors and on the other hand to a controller, means of detection of the presence of the supply voltage in the first connector, the means of detection being linked to the first connector and generating a switching control signal in response to the presence of the supply voltage (VBUS) to switch the apparatus from a first mode of operation to a second mode of operation.

Abstract: 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:

Abstract: The invention relates to a method of selecting multimedia data coding formats in a communications system having at least two terminals suitable for exchanging multimedia data. Each terminal has a set of coding formats listing the formats which it is capable of processing in reception and formats which it is capable of applying to multimedia data in transmission. Prior to any exchange of data between two terminals, each terminal sends its set of coding formats to the other terminal via a server. According to the invention, the server is connected to code format conversion means and, where necessary, it enlarges each set of coding formats received from a terminal as a function of the conversion means available to it, prior to forwarding the possibly enlarged set to the other terminal. In this way, the coding and decoding abilities of terminals in the system are enriched virtually, thereby reducing the number of calls that fail.

Abstract: A signaling router has means for receiving messages coming from terminals or from other signaling routers, and it further comprises means for correlating a new message with a previously received message, and for forwarding said new message to a signaling router associated with said previously received message.

Abstract: The present invention relates to an apparatus for receiving audio-visual programs comprising a circuit for communication with means of connection to a bi-directional communication network, wherein the apparatus comprises:

Abstract: The present invention relates to an apparatus for receiving an audiovisual program comprising a circuit for communication with means of connection to a bidirectional communication network, wherein the apparatus comprises