摘要:
The invention relates to an electronic device (STB1) comprising a wired communication interface (IC1) for receiving signals, the wired communication interface (IC1) comprising a connector (C1) suitable for the connection of a cable (RF1) and at least one electronic interfacing circuit (IF1) for transmitted signals, the wired communication interface (IC1) being realized such that the connector (C1) and the interfacing circuit (IF1) are connected by a circuit (IG1) suitable for galvanic isolation thus ensuring the absence of DC signal continuity and the absence of earth connection via the connector (C1) the connector (C1) being mounted in a face (RP1) of a mechanical casing (B1), said face (RP1) comprising a window wherein is inserted an isolating element (W1) around the connector (C1) or said face (RP1) being made of isolating material.
摘要:
The present invention relates to a method for controlling the speed of a fan equipping an electronic device and being used to cool it. A speed control value is calculated according to the temperature measured within the electronic device. This command value being limited to a maximum determined value, in such a manner that the fan is not audible. The method comprises a measurement step of the ambient sound level. If the ambient sound level exceeds a determined threshold then the speed of the fan is increased as the ambient sound covers the sound of the fan, even at great speed. An improvement consists in that during the introduction of a sound lowering command, the speed of the fan immediately returns below the maximum value. The present invention also relates to the device implementing the method.
摘要:
The present invention relates to an apparatus (1) for receiving audio-visual programmes comprising a circuit for communication with means of connection to a bi-directional communication network, characterised in that the apparatus (1) comprises:
a first connector (11) comprising at least one conductor for the transmission of a supply voltage (VBUS) originating from the master apparatus (2), at least one second connector (12) allowing the connection of at least one peripheral (4, 5, 6), a splitter (17) connected on the one hand to the first and second connectors (11, 12) and on the other hand to a controller (14) managing the mode of operation of the connectors (11, 12) in relation to the apparatus (1), means of detection of the presence of the supply voltage in the first (11) connector, the means of detection being linked to the first connector (11) and generating a switching control signal on the appearance of the supply voltage (VBUS) to a switching circuit (13), so as to switch the apparatus (1) from a first mode of operation to a second mode of operation.
摘要:
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.
摘要:
The present invention relates to a control method for the operation of a fan (5) 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.
摘要:
La présente invention concerne un procédé pour commuter un appareil d'un premier mode de fonctionnement, dit veille, vers un second mode de fonctionnement, dit réveil. L'appareil comporte un circuit de communication doté de moyens de connexion à un réseau de communication bidirectionnelle, un connecteur pour la communication avec un appareil source, ledit connecteur comportant au moins un conducteur (VBUS) pour la transmission d'une tension d'alimentation en provenance de l'appareil source. Le procédé comporte une étape de détection par un moyen de détection de la présence de ladite tension d'alimentation (VBUS) relié au connecteur, ledit moyen de détection générant, un signal de détection à l'apparition de la tension d'alimentation, vers le circuit de communication, ladite étape de détection déclenchant à l'apparition de la tension d'alimentation du bus une étape de commutation de l'appareil du premier mode de fonctionnement, dit veille pour lequel le circuit de communication a le minimum de fonctions actives au second mode de fonctionnement, dit réveil pour lequel le circuit de communication a sa fonction de communication, entre le connecteur et le réseau, activée.
摘要:
La présente invention concerne un procédé pour commuter un appareil d'un premier mode de fonctionnement, dit veille, vers un second mode de fonctionnement, dit réveil. L'appareil comporte un circuit de communication doté de moyens de connexion à un réseau de communication bidirectionnelle, un connecteur pour la communication avec un appareil source, ledit connecteur comportant au moins un conducteur (VBUS) pour la transmission d'une tension d'alimentation en provenance de l'appareil source. Le procédé comporte une étape de détection par un moyen de détection de la présence de ladite tension d'alimentation (VBUS) relié au connecteur, ledit moyen de détection générant, un signal de détection à l'apparition de la tension d'alimentation, vers le circuit de communication, ladite étape de détection déclenchant à l'apparition de la tension d'alimentation du bus une étape de commutation de l'appareil du premier mode de fonctionnement, dit veille pour lequel le circuit de communication a le minimum de fonctions actives au second mode de fonctionnement, dit réveil pour lequel le circuit de communication a sa fonction de communication, entre le connecteur et le réseau, activée.
摘要:
The present invention relates to a control method for the operation of a fan (5) 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.
摘要:
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.
摘要:
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.