Abstract: A method for measuring relative motion between an illuminated surface and an optical sensing device comprising a coherent light source and a photodetector array is described.

Abstract: A circuit configuration for secure application includes several internal frequency detectors arranged in digital units at critical points of an integrated circuit. The clock detectors are concealed in the digital part of the integrated circuit each as a standard cell (flip-flop unit) in order to prevent any external manipulation and in order to hide its function. The clock detectors are preferably disposed in a clock tree topology, which can be at several levels for distributing the clock signal through the different digital unit tree at critical points. Alarms are generated via a clock detector network if at any level an external clock attack has been monitored.

Abstract: This concerns a Bluetooth Low Energy (BLE) device, or system, or method of operating a BLE device and a respective computer program. The BLE device comprises a transceiver to broadcast the at least one advertising packet, a processor connected to the transceiver to generate the advertising packet and/or to trigger broadcasting thereof according to a broadcasting schedule. The device further comprises a verification element connected to the processor and being capable of ascertaining if a predefined condition is met, at least one of the verification element and the processor is capable of modifying the broadcasting schedule based on the predefined condition's ascertainment.

Abstract: The present invention concerns an electronic measurement circuit for measuring a physical parameter. The circuit comprises: a measurement sensor comprising two differential mounted capacitors each comprising a fixed electrode, and a common electrode, common to the two capacitors which is arranged to be movable relative to each fixed electrode of the two capacitors in order to alter the capacitive value of each capacitor when the physical parameter is measured.

Abstract: The physical parameter measurement method is performed using an electronic circuit (1) with a resistive sensor (2). The resistive sensor includes two resistors (R1, R2) mounted in series, whose connection node connected to a moving mass (M), is connected to a first input of an amplifier-comparator (3). A second input of the amplifier-comparator receives a reference voltage. One output of the amplifier-comparator is connected to a logic unit (4), which provides a digital output signal (OUT). A digital-to-analogue converter (5) provides a measurement voltage (Vdac), as a function of a digital signal provided by the logic unit, to the first resistor (R1) in a first phase of a measurement cycle, whereas the second resistor (R2) is polarized by a polarization voltage, and to the second resistor in a second phase, whereas the first resistor is polarized by a polarization voltage via a switching unit.

Abstract: The voltage regulator comprises a regulation loop (2), which comprises at least a pass transistor (18), a source transistor (28), a sensing transistor (22) and a retention transistor (24), and a stability compensation circuit (10), which comprises a first MOS resistor (12) and a second MOS resistor (14) coupled with the first MOS resistor (12). The gate of the second MOS resistor (14) is coupled to the gate of the pass transistor (18).

Abstract: The present invention relates to a method, to a computer program and to a system to establish wireless communication between at least two Bluetooth Low Energy (BLE) devices the method comprising the steps of: switching a first BLE device (20) into a scanning mode (SM), switching a second BLE device (30) into an advertising mode (AM), and broadcasting a first advertising packet (31) from the second BLE device, switching the second BLE device (30) into the scanning mode (SM), receiving the first advertising packet (31) by first BLE device (20), and switching the first BLE device (20) into the advertising mode (AM), and broadcasting a second advertising packet (21) from the first BLE device (30).

Abstract: The smart battery (1) includes an electronic module provided with an electronic circuit (8) for controlling the supply voltage, which is disposed in a case having a cover (2) as the external negative terminal, fixed to a cup (3), as the external positive terminal. A first chemical substance (4) as the anode and a second chemical substance (5) as the cathode, are inside the case. The electronic module includes a printed circuit board (7) having a first face with conductive paths, connected to the electronic circuit, and a second insulating face fixed to the second chemical substance. The electronic circuit is connected at output to a first connection pad connected to the cup. The electronic circuit is connected to the chemical substances by a second connection pad on a first tab (7?) and by a third connection pad on a second tab (7?) folded at 180° on the second face of the printed circuit board.

Abstract: A customer medium (1) for detecting the utilization of services is proposed, comprising a first and a second antenna (2, 3) for long-range data communication, a third antenna (4), an integrated circuit (6) comprising at least one crypto-engine, one microprocessor (5) connected with the integrated circuit (6) or integrated into the integrated circuit (6), an operational amplifier (8) and an RF transceiver (7) connected to the second antenna (3), where the third antenna (4) is connected to an NFC-module in the integrated circuit (6) and is used for the short-range data communication in an active mode of the customer medium (1), where the first antenna (2) is used as a wake-up antenna for receiving an amplitude-modulated wake-up signal if the customer medium is in a “sleep” mode, where the signal received by the wake-up antenna (2) is demodulated and amplified by the operational amplifier (8) serving as the wake-up detection module and is evaluated by the microprocessor (5) partially activated in the “sleep” mod

Abstract: The present invention concerns a method of operating a first-in first-out memory (9) arranged to store measurement data samples measured by a plurality of data measurement sensors (1, 3, 5), which can operate at various sampling rates. The oldest measurement data sample in the memory (9) is arranged to be read first before the newer measurement data samples. The method comprises: receiving measurement data samples from at least two data measurement sensors (1, 3, 5); and saving the received measurement data samples in the memory (9). Each of the measurement data samples saved in the memory is associated with a tag which is also saved in the memory (9) and which identifies the data measurement sensor (1, 3, 5) which measured the respective measurement data sample.

Abstract: The present invention concerns a mutual authentication method in a communication system. According to the method, a first communication device (1), such as an RFID reader, authenticates a second communication device (3), such as an RFID tag, by using an asymmetric authentication protocol based on a generated a session key. The tag authenticates the reader by using a symmetric communication protocol based on a generated other session key. At least a portion of the session key is used to generate the other session key.

Abstract: The present invention relates to a fault detection assembly of an integrated circuit having a supply port, an input port and a ground port. The fault detection assembly comprises a first diode connected with one end to the supply port and connected with the other end to the input port, a second diode connected with one end to the input port and connected with the other end to the ground port, at least a first fault detection transistor of MOS type. At least one of first and second diodes comprises a first diode-connected MOS transistor whose gate is connected to the gate of the first fault detection transistor.

Abstract: A physical parameter is measured via an electronic circuit connected to a two capacitor sensor. The circuit includes an amplifier connected to the common capacitor electrode, a logic unit for digital processing amplifier data and supplying a digital measuring signal, a digital-analog converter for supplying a measuring voltage based on the digital measuring signal, a switching unit for alternately supplying the measuring voltage to the first and second fixed capacitor electrodes, and a regulated voltage for negative biasing or a low voltage for positive biasing from a voltage supply source. A first phase consists in biasing the first fixed electrode with the measuring voltage from first binary word and reference voltage, and the second fixed electrode with low voltage, and a second phase consists in biasing the second fixed electrode with measuring voltage from second binary word, which is reverse of the first binary word, and the reference voltage.

Abstract: Organic light emitting diode display device including a substrate covered by a cover which has a plane surface delimited along the external perimeter thereof. The plane surface of the cover is provided with a protuberance. The substrate is provided with a stack of layers, the stack of layers including at least the following layers in succession in the following order starting from the substrate: at least one anode; an insulating layer; a spacer layer which has a first exclusion area in a first area; an active hole injection layer, an active hole transport layer and an active electron transport layer; a cathode layer which has a second exclusion area. The protuberance of the cover is joined to the layer with which the protuberance is in contact, a hole, whose diameter is smaller than the geometrical dimensions of the protuberance, being made in the protuberance and through the substrate.

Abstract: A method for reducing the non-linearity effect of a digital-analog converter on an electronic interface circuit of a capacitive sensor. The electronic circuit includes an amplifier connected to the common electrode by a switching unit, a logic unit connected to the amplifier for supplying first and second digital measuring signals, and a digital-analog converter for supplying a measuring voltage to the electrodes. The method includes firstly biasing the capacitor electrodes by the measuring voltage, then biasing the fixed electrode of the first capacitor at a regulated voltage and the fixed electrode of the second capacitor at a low voltage, then biasing the capacitor electrodes by the measuring voltage, and finally biasing the fixed electrode of the first capacitor at a low voltage and the fixed electrode of the second capacitor at a regulated voltage.

Abstract: The method is for measuring a physical parameter by an electronic circuit connected to a two differential capacitor sensor having two fixed electrodes and a common moving electrode. The electronic circuit supplies first and second digital measuring signals. Each measuring cycle consists on biasing the electrodes by the measuring voltage based on the first digital signal, connecting the fixed electrodes to a supply voltage source for a first biasing, biasing the electrodes by the measuring voltage based on the second digital measuring signal, and inversely connecting the fixed electrodes to a supply voltage source for a second biasing. In first successive measuring cycles, the first and second digital signals are adapted to each cycle by a large step value. In second successive measuring cycles, the first and second digital signals are adapted to each cycle by a small step value until the end of the conversion.

Abstract: The electronic circuit measures angular speed in a gyroscope, which includes a mass connected to a spring and a damping element, an actuation capacitor for actuating the mass and a detection capacitor for detecting motion of the mass. The electronic circuit includes a measurement resistor, which is connected to the moving mass and has a variation in resistive value equal to the oscillation frequency of the mass. The resistor is polarized to supply a measurement signal, which includes a carrier signal in phase with the oscillation of the mass and an angular speed signal phase shifted by ?/2 relative to the carrier signal The measurement signal is supplied to an integration unit clocked by a clocking signal phase shifted by ?/2 relative to the carrier signal and originating from the drive circuit. The angular speed signal is demodulated at the integration unit output.

Abstract: The processor circuit (1) has a Harvard architecture. This processor circuit includes a calculation unit (2), a first memory element (3a) for data storage and a second memory element (4a) for instruction storage. Said first and second memory elements (3a, 4a) are connected by at least one communication bus (5, 6) to the calculation unit. The processor circuit includes management means (8), placed between the first and second memory elements and the calculation unit and capable of saving several data items or instructions to save time during successive data reading.

Abstract: The present invention relates to a voltage regulator and to a method of operating a voltage regulator that is operable in a reset mode and in a sampling mode. The voltage regulator comprises a capacitive voltage divider having a first capacitor and a second capacitor in series with the first capacitor, wherein the capacitive voltage divider is connectable to an output of a voltage supply to activate the sampling mode, a comparator having an output connected to an input of the voltage supply, the comparator further having a first input connected to a sampling node arranged between the first capacitor and the second capacitor and the comparator having a second input connected to a reference voltage, wherein the sampling node is connectable to the reference voltage for activating the reset mode.

Abstract: Method for reading a barcode by means of an optical reader arranged to capture at a determined sampling frequency a series of partial images of the barcode by a sensor having at least one line of pixels. According to the invention it is provided to determine in each partial image a logical value as a function of the light intensity received by a central pixel of the line of pixels and a corresponding bar width when this bar is completely incorporated into the partial image in question. By only setting a maximum speed for the speed of movement of the barcode and dimensioning the line of pixels to ensure that each bar of this barcode is completely incorporated into a partial image at least once, the sequence of bits defined by the barcode is determined by means of an algorithm ignoring the duplications detected in consecutive partial images.