Abstract: The invention relates to an apparatus comprising an injection device (1) for producing a flow of a high-speed combustible gas mixture, and a burner head (2) in which said flow is injected through a tabular extender (70) connecting said injection device (1) to said head (2). The extender has a maximal length higher than 600 mm and includes at the gravity center of the device assembly, means for suspension to a portion of the operator's body.

Abstract: A hot air generating device of the type including an injection device (2) capable of producing a flow of a combustible gas mixture at a high speed and a burner head (3) in which the flow is ignited via a spark plug (6) positioned near the burner (3) and electrically connected to a lighter (12), preferably a piezoelectric lighter, including an autotransformer mounted in parallel between the lighter and the spark plug. Such a device is particularly advantageous to facilitate the lighting of the mixture, in particular when the device is provided with a riser between the lighter and the spark plug.

Abstract: The invention concerns a method for verifying, prior to fabrication, the proper operation of integrated circuit electronic systems using analog signals. It comprises the following steps: identifying (22) the noise-sensitive circuits, setting an acceptable sensitivity template for these noise-sensitive circuits, identifying (34) the noise-generating circuits, modeling the noise, determining (50) the function for transferring noise to the sensitive circuits, and comparing (58) the level of noise reaching the sensitive circuits to an acceptable sensitivity threshold template for the sensitive circuits.

Abstract: Method for modelling the noise injected into an electronic system. The invention relates to a method of modelling the noise injected into a mixed system (1) of digital and analogue, and/or radio-frequency type. In the invention, the injection of noise in the system (1) is modelled by macro-models of digital cells (8, 8.1-8.N) which model, in particular, noise related to the switching of the digital cells (C1-CN), and by models of lines (L1-LN) modelling, in particular, the noise resulting from a change of state of the signals transported over the lines.

Abstract: The invention relates to an apparatus comprising an injection device (1) for producing a flow of a high-speed combustible gas mixture, and a burner head (2) in which said flow is injected through a tabular extender (70) connecting said injection device (1) to said head (2). The extender has a maximal length higher than 600 mm and includes at the gravity centre of the device assembly, means for suspension to a portion of the operator's body.

Abstract: The present invention is a method for modeling the switching activity of a digital circuit, this digital circuit comprising cells linked together by interconnections, these cells switching at an instant at which at least one of their inputs changes state, successive switchings of the cells of the circuits occurring during a clock period Tclk of this circuit, the clock period includes the following steps: calculating based on an adapted statistical model the number of cells liable to switch over each time interval [tk, tk+1] of the clock period, and allocating switching instants to the different cells of the digital circuit based on the knowledge of the number of cells liable to switch over the time intervals [tk; tk+1]. The present invention is further a production method.

Abstract: The invention concerns a method for verifying, prior to fabrication, the proper operation of integrated circuit electronic systems using analog signals. It comprises the following steps: identifying (22) the noise-sensitive circuits, setting an acceptable sensitivity template for these noise-sensitive circuits, identifying (34) the noise-generating circuits, modeling the noise, determining (50) the function for transferring noise to the sensitive circuits, and comparing (58) the level of noise reaching the sensitive circuits to an acceptable sensitivity threshold template for the sensitive circuits.