Abstract: A light-emitting device to detect passage or smoke in the emitted beam. The device includes a source of invisible radiation, a source of visible laser radiation, an alignment component to align the central axis of the visible radiation with an axis parallel to the central axis of the invisible radiation, and a switch to turn off the visible laser source. The device can further include a housing containing both sources of radiation. The switch is configured to be controlled by the closing of the housing and the source of visible laser radiation is turned off in response to the closure of the housing.

Abstract: A light-emitting device to detect passage or smoke in the emitted beam. The device includes a source of invisible radiation, a source of visible laser radiation, an alignment component to align the central axis of the visible radiation with an axis parallel to the central axis of the invisible radiation, and a switch to turn off the visible laser source. The device can further include a housing containing both sources of radiation. The switch is configured to be controlled by the closing of the housing and the source of visible laser radiation is turned off in response to the closure of the housing.

Abstract: The method for checking loudspeakers comprises the steps of emitting a pulse over an electrical connection with the loudspeaker; measuring the electrical resistance over the connection; determining the state of the loudspeaker according to the measured resistance; and triggering a corrective action depending on the determined state of the loudspeaker. The claimed method further comprises the steps of associating a plurality of amplification systems to different subsets of the plurality of loudspeakers; assigning different signals to be emitted by different loudspeakers for each of a plurality of control signals; and storing parameters representing the signals to be emitted in each amplification system. When a control signal common to the different amplification systems is received, the amplification systems cause the loudspeakers to emit the different signals and the corrective action comprises memorizing the parameters representing the status of the loudspeaker.

Abstract: The present invention relates to a connector with a blade comprising a housing. The housing comprises a lateral opening designed to receive an electric wire, a flexible blade and an opening opposite a free part of the blade. The flexible blade is designed to make contact with the electric wire and to retain the wire by applying pressure on it towards a wall of the housing. The opening has a shape designed to guide the head of a tool and make the head of the tool follow a helical motion. The opening may be threaded and cylindrical and the opening's thread may comprise only one helical groove formed in the wall of the opening.

Abstract: The method for checking loudspeakers comprises the steps of emitting a pulse over an electrical connection with the loudspeaker; measuring the electrical resistance over the connection; determining the state of the loudspeaker according to the measured resistance; and triggering a corrective action depending on the determined state of the loudspeaker. The claimed method further comprises the steps of associating a plurality of amplification systems to different subsets of the plurality of loudspeakers; assigning different signals to be emitted by different loudspeakers for each of a plurality of control signals; and storing parameters representing the signals to be emitted in each amplification system. When a control signal common to the different amplification systems is received, the amplification systems cause the loudspeakers to emit the different signals and the corrective action comprises memorizing the parameters representing the status of the loudspeaker.

Abstract: The manual trigger device includes: a housing presenting a flexible or mobile surface, an emission unit that emits an electromagnetic field, a reception unit that receives the electromagnetic field, and emits a signal representative of the electromagnetic field received, a modulation element that modulates the electromagnetic field, and is connected to the flexible or mobile surface of the housing such that when the surface is deformed or moved, the reception unit receives an electromagnetic field modulated by the modulation element according to the deformation of the flexible or mobile surface and a processing circuit that processes the signal, and adapted to detect a modulation of the electromagnetic field representative of a push on the surface with a predetermined pressure and to command, upon detection, the change in appearance of a warning device visible from the outside of the housing.

Abstract: The present invention relates to a connector with a blade comprising a housing. The housing comprises a lateral opening designed to receive an electric wire, a flexible blade and an opening opposite a free part of the blade. The flexible blade is designed to make contact with the electric wire and to retain the wire by applying pressure on it towards a wall of the housing. The opening has a shape designed to guide the head of a tool and make the head of the tool follow a helical motion. The opening may be threaded and cylindrical and the opening's thread may comprise only one helical groove formed in the wall of the opening.

Abstract: The manual trigger device includes: a housing presenting a flexible or mobile surface, an emission unit that emits an electromagnetic field, a reception unit that receives the electromagnetic field, and emits a signal representative of the electromagnetic field received, a modulation element that modulates the electromagnetic field, and is connected to the flexible or mobile surface of the housing such that when the surface is deformed or moved, the reception unit receives an electromagnetic field modulated by the modulation element according to the deformation of the flexible or mobile surface and a processing circuit that processes the signal, and adapted to detect a modulation of the electromagnetic field representative of a push on the surface with a predetermined pressure and to command, upon detection, the change in appearance of a warning device visible from the outside of the housing.