Abstract: A digital logic controller including a first delay cell connectable to a signal input and operable to generate a first time delayed input signal, a second delay cell connectable to the signal input and operable to generate a second time delayed input signal, a counter connectable to the signal input via the first delay cell, two logic units to generate reset signal by one of logic units and to generate set signal by the other of logic units, and connected between the set of delay cells and a flip-flop operable to generate a counter valid signal at a flip-flop output, a first comparator connected to an output of the counter and operable to compare a counter output signal with a first target, a first logic gate connected to the flip-flop output, connected to the first comparator and operable to temporally deactivate processing of the counter output signal.

Abstract: A wearable device (1) including a case (2a, 2b) including a watertight compartment (26) containing a printed circuit board (5), the case (2a, 2b) being assembled to a strap (4a, 4b) for mounting this wearable device (1) on a body part of a user, said assembly of the case (2a, 2b) with the strap (4a, 4b) being configured so that a portion (7) of this strap (4a, 4b) includes at least one actionable part of the device (1).

Abstract: A sealed electronic module (1) including at least one actionable part (2), the module (1) including a case (2) having: a watertight compartment (4) containing a printed circuit board (5), the compartment (4) being formed by a housing (13) with a unique opening (20), the housing (13) including the printed circuit board (5), and a sealing element (6a, 6b) configured for closing tightly the unique opening (20) by being fixed to the housing (13) and the printed circuit board (5).

Abstract: A displacement detection circuit (100) configured to implement a displacement detection method (500) for a pointing device (199) having at least one pixel array (190). The displacement detection circuit (100) includes at least one main calculator (110), at least one auxiliary calculator (111, 112, 113) at least one comparator (130) and at least one motion detector (150). The main calculator (110) is configured to calculate at least one main average (210) corresponding to the average of the at least one pixel array (190), which is compared to at least one auxiliary average (211, 212, 213) of the at least one auxiliary calculator (111, 112, 113). According to the result of the comparison, the at least one motion detector (150) indicates at least one direction (250) of displacement of the pointing device (199).

Abstract: A semiconductor wafer (1a, 1b) including a plurality of chips (2) and a separation zone (3) spacing the semiconductor chips (2) from each other in this wafer (1a, 1b), such a separation zone (3) extending from a front face (4a) to an opposite backside face (4b) of this wafer (1a, 1b), this separation zone (3) includes a scribe line (6) configured to be diced using plasma etching and an inlet area (13) of this scribe line (6), the inlet (13) being delimitated by free ends of plasma etch-resistant material layers (9) extending each from a peripheral wall (20) of a functional part (18) of a chip (2) into the scribe line (6) by overlapping a top of a seal ring (7) of this chip (2).

Abstract: A method for applying illumination correction for an optical computer mouse, includes: flashing a light source of the mouse directed towards a surface; accumulating voltage on a pixel array of the mouse to obtain raw pixel values of an image frame in response to detecting light reflected from the surface; applying analog correction to the raw pixel values based on digital gain coefficients to obtain an array of corrected pixel values forming corrected image data; digitizing the corrected image data with an analog-to-digital converter to obtain digital pixel values forming digital image data; and updating the digital gain coefficients so that a gain coefficient corresponding to a digital pixel value is incremented if the digital pixel value is below or equal to a given pixel threshold value, and so that the gain coefficient is decremented if the digital pixel value is above the given pixel threshold value.

Abstract: In a sensing device of a pointing device, like a mouse, said pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector, and at least one primary photodetector. Each individual storage element of photodetectors is weighted and compared such as to sense a displacement of the pointing device.

Abstract: In a method for sensing a displacement of a pointing device, like a mouse, said pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector, and at least one primary photodetector. Each individual value of the photodetectors is weighted and compared such as to sense said displacement of the pointing device.

Abstract: An output driver (12), including: a first supply rail (13A) configured to receive a high supply electrical voltage (Vdd); a second supply rail (13B) configured to receive a low supply electrical voltage (Vss); a pad terminal (15) configured to output an output electrical voltage (V_pad_out); an output stage (14) connected to the pad terminal (15) and to the first and second supply rails (13A, 13B). The output stage (14) has an electrical clamping circuit (18A, 18B) including a semiconductor electronic switching component (Q3, Q6) made of a first type of semiconductors and a semiconductor electronic switching component (Q4, Q7) made of a second type of semiconductors. A resistor (R3, R0) is connected between the first or second supply rail and the semiconductor electronic switching component (Q3, Q6) of the first type, at an intermediate terminal (20, 24).

Abstract: A power control unit is provided to control the efficiency of a charge pump converter having a first input terminal and a second input terminal, a primary attenuator and a secondary attenuator between a first input terminal and the second input terminal, a first output terminal, a second output terminal, a secondary attenuator controlling terminal and a primary attenuator controlling terminal to be plugged to the power control unit. The primary attenuator controlling terminal and the secondary attenuator controlling terminal are to attenuate or amplify a signal of the first input terminal and the second input terminal.

Abstract: A voltage limiter for a signal receiver (1), the voltage limiter (20) including: an input (21) connectable to a signal source (10); an output (22) connectable to a detector (70) and connected to the input (21) via a signal conductor (30); a ground conductor (40) connectable to ground (5); a first branch (24) connected to the signal conductor (30), connected to the ground conductor (40) and comprising a first diode element (52); a second branch (25) connected to the signal conductor (30), connected to the ground conductor (40) and comprising a second diode element (53); and a resistor element (36, 54, 55) between the signal conductor (30) and the ground conductor (40).

Abstract: The disclosure concerns an oscillator circuit (10) for a signal transmitter, the oscillator circuit (10) comprising: a resonant circuit (12) comprising a resonant inductor (LR) and a resonant capacitor (CR) parallel to the resonant inductor (LR) or comprising a crystal device, a driving branch (14) comprising a pump capacitor (CP) connected to the resonant circuit (12), a feedback branch (20) connected to the resonant circuit (12), a phase shifting circuit (22) connected to the resonant circuit (12) via the feedback branch (20), a comparator circuit (24) connected to the feedback branch (20) via the phase shifting circuit (22) and a driver circuit (28) connected to an output of the comparator circuit (24) and operable to charge the pump capacitor (CP).

Abstract: An embodiment of the invention relates to a method for sensing a displacement of a pointing device, like a mouse. The pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector and at least one primary photodetector. Each individual value of photodetectors is weighted and compared to sense the displacement of the pointing device by comparing a plurality of storage elements.

Abstract: A soft switching device (sw) for connecting a power supply to at least one large electronic unit of an electronic system (1), so as to be activated via the soft switching device to the power supply. The device comprises a switch component (M1) with a control terminal and a current source (13) connected to the control terminal to control the switch component closure when the current source is activated. The soft switching device also includes a soft transition element (C1) of capacitive type between the output terminal (12) and the control terminal of the switch component (M1) so as to gradually close the switch for connection to a power supply.

Abstract: A method of image correlation includes: obtaining a first image frame with a set of distinct features; obtaining a second image frame at least partially overlapping the first image frame; carrying out a cross-correlation operation of the first and second image frames to obtain a cross-correlation result indicating correlation values for different offset positions of the second image frame with respect to the first image frame, the highest correlation value with its associated offset position in the cross-correlation result indicating the most likely offset position of the second image frame with respect to the first image frame; and carrying out a reaggregation operation of the cross-correlation result to generate a distinct global maximum correlation value from a plurality of non-distinct correlation values in an aggregated cross-correlation result. The reaggregation operation involves carrying out a convolution of the cross-correlation result with a 1×2, 2×1, or 2×2 array of 1's.

Abstract: A method for tracking a position of an optical computer mouse based on determining a spatial displacement between image frames. A respective image frame is considered as an anchor frame if the respective image frame comes first in a sequence of image frames or the distance of the respective image frame to its immediately previous anchor frame is equal to or greater than a displacement threshold, and the respective image is considered as an intermediate frame if its distance to its immediately previous anchor frame is below the displacement threshold. Only anchor frames are stored in memory and used for future displacement measurements between image frames captured by the mouse.

Abstract: An RFID assembly and an assembly method thereof are provided. The assembly method for an RFID assembly comprises a step of providing at least one integrated circuit which includes at least one IC contact and at least one dielectric layer, and a deposition of at least one electrical contact and of at least one re-passivation layer. The at least one electrical contact is deposited on at least one first portion and the at least one re-passivation layer is deposited on at least one second portion, which is distinct of the at least one first portion.

Abstract: According to an aspect of the disclosure a ring-oscillator control circuit includes a voltage reference, a ring oscillator, a power supply and a supply controller. The supply controller may be configured to select the power supply among an energy storage and an energy source such as to supply the ring oscillator in function of the voltage reference.

Abstract: A test logic method (500) for an Integrated Circuit Device (100) including a main Integrated Circuit device (200) and an auxiliary Integrated Circuit device (300) having an auxiliary logical internal state (340). The method (500) includes a request (610), wherein a main configuration register (210) requests (610) testing (740) of an auxiliary logic circuit (330) via an auxiliary test logic circuit (350), testing (740), wherein the auxiliary test logic circuit (350) tests (740) the auxiliary logic circuit (330), displaying (750), wherein the auxiliary logic circuit (330) displays (750) the auxiliary logical internal state (340), and a reading (670), wherein the main configuration register (210) reads (670) the auxiliary logical internal state (340).

Abstract: A sensor interface circuit (5) for an amperometric electrochemical sensor (3). The circuit includes: a current-to-voltage converter (9, Rf) connected to a first terminal (WRK) of the sensor (3) for converting an electric current through the sensor (3) to a voltage at an output terminal (10) of the current-to-voltage converter (9, Rf); a first amplifier (7) connected between a second terminal (REF) and a third terminal (CNTR) of the sensor (3) for maintaining a substantially fixed voltage difference between the first and second terminals (WRK, REF) of the sensor (3); a power supply (11) for powering the voltage converter (9, Rf) and for powering a first portion (31) of the first amplifier (7); and a negative voltage converter (17) configured to power a second portion of the first amplifier (7) through its low-side supply terminal (41), while a high-side supply terminal (39) of the second portion of the first amplifier (7) is configured to be connected to the power supply (11).