Abstract: A robotized surgery system (10) comprises at least one robot arm (11) which acts under the control of a control console (12) intended for the surgeon. The console (12) comprises an eye tracking system (21) for detecting the direction of the surgeon's gaze and for entering commands depending on the directions of the gaze detected. The console (22) comprises advantageously a screen (23) with at least one zone (23) for viewing the operating field and, among the commands which can be performed depending on the gaze directions, there is advantageously an automatic command for enabling or disabling the movement of the robot arm (11) when a gaze direction which falls within or outside of said zone (23) of the screen is detected.

Abstract: The method and apparatus object of this invention refer to a system for using generic software applications by means of ocular control characterized by simple interaction techniques which minimize the cognitive effort of the user required to manipulate the software and which permit to overcome the problems resulting from the intrinsic problem of accuracy of eye-tracking systems. Indeed, such technique does not provide using the pointer of the mouse moved by means of the gaze to control the various software applications but to use a separate application which through the use of suitable interaction techniques is comfortable and does not involve an increased effort of concentration by the user. An attempt has indeed been made to simplify the process of interaction between the user and machine also by means of the use of visual feedback which allows the same operations of the mouse to be performed by the user without the typical user frustration due to the problems of accuracy of the eye-tracking device.

Abstract: A robotized surgery system (10) comprises at least one robot arm (11) which acts under the control of a control console (12) intended for the surgeon. The console (12) comprises an eye tracking system (21) for detecting the direction of the surgeon's gaze and for entering commands depending on the directions of the gaze detected. The console (22) comprises advantageously a screen (23) with at least one zone (23) for viewing the operating field and, among the commands which can be performed depending on the gaze directions, there is advantageously an automatic command for enabling or disabling the movement of the robot arm (11) when a gaze direction which falls within or outside of said zone (23) of the screen is detected.

Abstract: A robotized surgery system (10) comprises at least one robot arm (11) which acts under the control of a control console (12) intended for the surgeon. The console (12) comprises an eye tracking system (21) for detecting the direction of the surgeon's gaze and for entering commands depending on the directions of the gaze detected. The console (22) comprises advantageously a screen (23) with at least one zone (23) for viewing the operating field and, among the commands which can be performed depending on the gaze directions, there is advantageously an automatic command for enabling or disabling the movement of the robot arm (11) when a gaze direction which falls within or outside of said zone (23) of the screen is detected.

Abstract: The method and apparatus object of this invention refer to a system for using generic software applications by means of ocular control characterized by simple interaction techniques which minimize the cognitive effort of the user required to manipulate the software and which permit to overcome the problems resulting from the intrinsic problem of accuracy of eye-tracking systems. Indeed, such technique does not provide using the pointer of the mouse moved by means of the gaze to control the various software applications but to use a separate application which through the use of suitable interaction techniques is comfortable and does not involve an increased effort of concentration by the user. An attempt has indeed been made to simplify the process of interaction between the user and machine also by means of the use of visual feedback which allows the same operations of the mouse to be performed by the user without the typical user frustration due to the problems of accuracy of the eye-tracking device.

Abstract: A demodulator is provided for demodulating an amplitude-modulated input signal defined by a carrier signal having a carrier frequency modulated by a modulating signal, the demodulator including an amplifier stage having a gain and structured to receive the amplitude-modulated input signal, and a gain control stage coupled to the amplifier stage and configured to vary the gain of the amplifier stage according to the carrier frequency of the carrier signal.

Abstract: The method and the apparatus of the present invention is related to a system to access to communication and/or to writing using means as personal computer, and it is targeted particularly to disabled people suffering heavy restriction of their organisation and execution of movements. A heavy motor disability means the impossibility to use the traditional devices as computer peripheral command devices, and, being impossible to perform direct selection of items on the screen in order to give commands, it is necessary to use a scanning technique. This technique provides the possibility to use one or more external sensors to select the command on a matrix of letters or symbols that are displayed in succession. The process of interaction between disabled user and machine has been made easier using a visual feedback that provides the user to foresee the path of scanning. In this way the scanning method is determined in advance and the cognitive effort carried out by the user is considerably reduced.

Abstract: A signal-processing circuit has a first and a second input, which receive a first and a second differential signal, a third input, which receives a common-mode signal, the first and second differential signals having an equal and substantially opposite trend with respect to the common-mode signal, and a first output supplying a first processed signal, equivalent to the first differential signal rectified with respect to the common-mode signal, and satisfying throughout its course a first relation of comparison with the common-mode signal. The processing circuit is provided with first formation means for formation of the first processed signal, which operate on the basis of the first differential signal, and second formation means for formation of the first processed signal, which operate on the basis of the second differential signal; the first and second formation means co-operate in the formation of the first processed signal.

Abstract: A demodulator is provided for demodulating an amplitude-modulated input signal defined by a carrier signal having a carrier frequency modulated by a modulating signal, the demodulator including an amplifier stage having a gain and structured to receive the amplitude-modulated input signal, and a gain control stage coupled to the amplifier stage and configured to vary the gain of the amplifier stage according to the carrier frequency of the carrier signal.

Abstract: A demodulator includes input terminals, for receiving an input signal, and an amplifier stage having a gain. The input signal is amplitude-modulated and is defined by a carrier signal at a carrier frequency and by a modulating signal. The demodulator includes, moreover, a gain-control stage, coupled to the amplifier stage for varying the gain of the amplifier stage according to a sinusoid of a frequency equal to the carrier frequency, on the basis of the carrier signal.

Abstract: A demodulator includes input terminals, for receiving an input signal, and an amplifier stage having a gain. The input signal is amplitude-modulated and is defined by a carrier signal at a carrier frequency and by a modulating signal. The demodulator includes, moreover, a gain-control stage, coupled to the amplifier stage for varying the gain of the amplifier stage according to a sinusoid of a frequency equal to the carrier frequency, on the basis of the carrier signal.

Abstract: A signal-processing circuit has a first and a second input, which receive a first and a second differential signal, a third input, which receives a common-mode signal, the first and second differential signals having an equal and substantially opposite trend with respect to the common-mode signal, and a first output supplying a first processed signal, equivalent to the first differential signal rectified with respect to the common-mode signal, and satisfying throughout its course a first relation of comparison with the common-mode signal. The processing circuit is provided with first formation means for formation of the first processed signal, which operate on the basis of the first differential signal, and second formation means for formation of the first processed signal, which operate on the basis of the second differential signal; the first and second formation means co-operate in the formation of the first processed signal.