Abstract: A method for controlling a loudspeaker having an electromechanical force transducer and a diaphragm by: Providing a non-linear electromechanical model configured to apply one or more desired conditions to a loudspeaker input digital audio signal, i.e. to an analogic input signal converted in a digital input signal; Providing an inverse non-linear electromechanical model of the transducer configured to receive a signal processed by the non-linear model and to linearize at least one mechanical and/or electrical and/or electromechanical non-linearity of the transducer; Converting the digital output signal of the electromechanical model into an analog signal for the transducer, So that the output signal comprises an input voltage signal for the transducer and at least the second non-linear model is a digital wave filter (hereinafter referred to as Wave Digital Filters, WDF) to provide a directly computable function in the discrete-time domain to get the input voltage signal for the transducer.

Abstract: A method for controlling a loudspeaker having an electromechanical force transducer and a diaphragm by: Providing a non-linear electromechanical model configured to apply one or more desired conditions to a loudspeaker input digital audio signal, i.e. to an analogic input signal converted in a digital input signal; Providing an inverse non-linear electromechanical model of the transducer configured to receive a signal processed by the non-linear model and to linearize at least one mechanical and/or electrical and/or electromechanical non-linearity of the transducer; Converting the digital output signal of the electromechanical model into an analog signal for the transducer, So that the output signal comprises an input voltage signal for the transducer and at least the second non-linear model is a digital wave filter (hereinafter referred to as Wave Digital Filters, WDF) to provide a directly computable function in the discrete-time domain to get the input voltage signal for the transducer.

Abstract: Method for simulation of an electrical circuit by synthesis of a physical model, using digital wave structures including the following steps: within the framework of digital wave structure, consider a serial and parallel adapter block with at least three ports of which one adapted; represent said electrical circuit connecting the elements together by means of a plurality of said adapter blocks; connect each adapter block to the adapted port of the previous adapter block; consider the plurality of said adapter blocks as nodes of a binary tree and said elements of said electrical circuit as leaves of said binary tree; apply an element of the aforesaid electrical circuit to the adapted port of the root node; consider, for each port, an incident wave and a reflected wave; starting from the lower leaves of the tree and moving towards the root, calculate each reflected wave; assess the reflected wave of the element connected to the adapted port of the root; starting from the root and moving towards the lower leaves

Abstract: A method for determining the three-dimensional surface of an object comprises the phases of: defining (1) the coordinates of a plurality of points of said object; defining (2) a three-dimensional matrix of cells that contains said object to which a value can be associated; determining (3) the distance between each centre of said cells of said three-dimensional matrix of cells and the closest point of said plurality of points of said object; setting (4) the value of several cells of said three-dimensional matrix of cells at a first preset value; determining (7) the value that each cell of said three-dimensional matrix of cells assumes, with the exception of said several cells, by means of the following formula F ? ( x _ i , t + 1 ) = F ? ( x _ i , t ) · v i + w · ? j ? F ? ( x _ j , t ) · v j v i + w · ? j ? v j where xi represents the coordinates of the centre of the i_th cell, F( xi, t) represents the value of the i_th cell at time t, vi

Abstract: Method for simulation of an electrical circuit by synthesis of a physical model, using digital wave structures including the following steps: within the framework of digital wave structure, consider a serial and parallel adapter block with at least three ports of which one adapted; represent said electrical circuit connecting the elements together by means of a plurality of said adapter blocks; connect each adapter block to the adapted port of the previous adapter block; consider the plurality of said adapter blocks as nodes of a binary tree and said elements of said electrical circuit as leaves of said binary tree; apply an element of the aforesaid electrical circuit to the adapted port of the root node; consider, for each port, an incident wave and a reflected wave; starting from the lower leaves of the tree and moving towards the root, calculate each reflected wave; assess the reflected wave of the element connected to the adapted port of the root; starting from the root and moving towards the lower leaves

Abstract: The present invention refers to a method for determining the three-dimensional surface of an object.

Abstract: For ray tracing it is necessary to determine the region of visibility between at least a first reflector and a second reflector by means of the following phases: representing said first and second reflector in a system of coordinates (x, y, z); said method is characterised in that it further comprises the phases of: carrying out an affine transformation of said system of coordinates (x, y, z); determining the region of visibility of said second reflector in relation to said first reflector as the set of the parameters of the straight lines that link a generic point of said first reflector with a generic point of said second reflector.

Abstract: In a method of text improvement, image text in an image is detected (SW, Det), the image is scaled (Scal) to adjust first numbers of pixels per line and lines per image of the image to second numbers of pixels per line and lines per image that fit in with a display (D) on which the image is to be displayed, and the image is processed (Post-proc) in dependence on a result of the text detection.

Abstract: In a method of text improvement, in an image text is detected (SW, Det), the image is scaled (Scal) to adjust first numbers of pixels per line and lines per image of the image to second numbers of pixels per line and lines per image that fit in with a display (D) on which the image is to be displayed, and the image is processed (Post-proc) in dependence on a result of the text detection.