The invention relates to a tactile man-machine interface comprising an interfacing surface comprising a means for transforming impacts on the interfacing surface into input electrical signals and a data interfacing means, configured for data communication with at least a first and a second device In this configuration, it becomes possible to provide data communication between the first and second devices without having to bring the two devices in contact. Furthermore, the invention relates to a separating element comprising such a tactile man-machine interface and system, such as vending machines, automatic teller machines etc, comprising such a separating element.
The invention relates to a device for changing the operational state of an apparatus, in particular from a stand-by or power down mode into an active state, which, in order to reduce power consumption during a stand-by mode and, furthermore, in order to reduce accidental powering up of the apparatus, comprises at least one means for transforming a mechanical excitation, in particular applied to the surface of the apparatus, into an electric signal and a power providing means for supplying at least a part of, in particular all, the electric power necessary to enable a change of the operational state of the apparatus wherein the electric power is obtained out of the electric signal. The invention, furthermore, relates to any apparatus comprising this device for changing operational state and a corresponding method.
The invention relates to a method for determining the location of an impact on a surface of an object based on the analysis of an acoustic signal generated by the impact. This method further comprises a signal treatment step of weighting the acoustic signal to take into account spurious contributions in particular due to reflections at the border of the object.
G06F 3/043 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
G01N 29/46 - Processing the detected response signal by spectral analysis, e.g. Fourier analysis
G01N 29/50 - Processing the detected response signal using auto-correlation techniques or cross-correlation techniques
G01N 29/44 - Processing the detected response signal
The invention relates to a touch sensitive panel comprising a single interaction means with at least a first and a second interaction area, wherein the interaction means is transparent in the first interaction area, at least one transforming means for transforming a mechanical, in particular pressure, excitation of the at least first and/or second interaction area of the interaction means into respective signals, and a processing means configured to identify the position of the excitation based on the signals. It furthermore relates to a device comprising such touch sensitive panel. It furthermore relates to an improved drag and drop method.
The invention relates to a touch sensing device for localizing mechanical impacts on a tactile plate. According to the invention, at least one acoustic transducer is mounted on the tactile plate by means of an acoustic isolator, such that the acoustic transducer and the tactile plate are in direct contact with each other and the acoustic transducer is acoustically shielded by the acoustic isolator. Thus, the acoustic waves can be detected with little distortions and the reliability of the touch sensing device can be improved. The invention also relates to a touch sensing device comprising a tactile plate and a sensor module comprising at least one acoustic transducer and a fastening means to fix the sensor module to the tactile plate, wherein the fastening means is a sticky tape, in particular a double sided sticky tape.
The invention relates to a touch control system comprising an interaction means between a user and a system, at least two transforming means for transforming an excitation of the interaction means into respective signals and a signal processing means configured to determine the position on the interaction means where the excitation occurred. To simplify such a system, the invention uses a signal processing means, which is configured such that signatures are determined based on a comparison of at least one parameter of the respective signals. The invention also relates to a touch control system, wherein the transformation means are positioned within a housing with limber sidewalls. The invention also relates to a corresponding method.
A method for determining the position of the origin of an excitation on a surface of an object (3) fitted with transducers (4) comprising the steps of : (a) receiving signals Si(t) originating from said transducers; (b) calculating a signature SIGs of these signals; (c) comparing this signature SIGs with predetermined reference signatures SIGrRj, by a calculus of a resemblance function RESj; (d) determining a reference point j0 nearest to the origin of the excitation, based on the resemblance function and on a computation of a validation criterion.
An automatic gain control circuit including a variable gain amplifier (11) adapted to receive a received signal (R) and to output an amplified signal (A) to an analog to digital converter (20), and a gain controller (12) which is connected to said variable gain amplifier (11) for receiving said amplified signal (A) and for controlling a gain of said variable gain amplifier (11). The gain controller (12) is adapted to determine an occurrence of a threshold event each time the amplified signal (A) has reached a predetermined threshold, decrease the gain of the variable gain amplifier (11) at each occurrence of a threshold event, measure a delay since the last threshold event, increase the gain of the variable gain amplifier (11) if the delay is greater than a delay specified value and if the gain of the variable gain amplifier (11) is not maximum.
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