A method for calibrating a measuring device for a vehicle steering wheel, the measuring device comprising a detection sensor, and an acquisition unit, the calibrating method comprising the steps of: placing the vehicle steering wheel with the on-board detection sensor in a reference environment, carrying out a reference measurement, recording the level of the reference signal and/or adjusting and recording at least one initial threshold to be used by the electronic control unit to initiate a driver assistance action, depending on the level of the measured reference signal and/or recording a difference between the level of the reference signal and the initial threshold.

Circuitry for biasing a sensor comprises a bias generator module configured to receive a supply voltage and to generate a bias voltage for biasing the sensor. The circuitry further comprises a control module configured to compare a voltage indicative of the supply voltage to a threshold voltage and to output a control signal to the bias generator module based on the comparison. The bias generator module is configured to control the bias voltage based on the control signal.

Embodiments relate to circuit for reversing a threshold voltage shift of a transistor. The circuit includes a current mirror for sensing a transistor current and generating a mirrored current corresponding to the sensed transistor current, a gate biasing module for providing a gate bias to the transistor, and a calibration engine configured to receive the mirrored current from the current mirror and to control the gate biasing module in response to determining whether the mirrored current is outside of a predetermined range indicative of a shift in the threshold voltage of the transistor. The gate biasing module includes a gate biasing circuit configured to operate the transistor in a region where hot carrier injection (HCI) is present, and a gate switch for coupling the gate biasing circuit to a gate terminal of the transistor.

An input apparatus includes a detection unit that repeatedly generates a detection signal according to a degree of proximity of the object, a drift simulation unit that generates a drift simulated signal that undergoes a change having correlation with a drift in the detection signal due to repeated generation of the detection signal in the detection unit, and a correction unit that corrects the detection signal according to the change in the drift simulated signal at least one of when repeated generation of the detection signal in the detection unit is started and when an interval for repeatedly generating the detection signal in the detection unit is changed.

A radio-frequency switch is disclosed, comprising a set of field-effect transistors disposed between a first node and a second node. In some embodiments, each field-effect transistor of the set of field-effect transistors has a respective source, drain, gate, and body. In some embodiments, the radio-frequency switch includes a compensation circuit coupled in parallel with the set of field-effect transistors, the compensation circuit configured to compensate a non-linearity effect generated by the set of field-effect transistors.

A method of calibrating touch sensing applicable to a microprocessor of an ultrasonic touch sensing device, in which the ultrasonic touch sensing device is for generating a touch sensing signal according to a ultrasonic wave, and the method includes: receiving the touch sensing signal; measuring temperature of the ultrasonic touch sensing device to generate multiple temperature parameters; if a variation tendency of the temperature parameters is downward, and if a level of the touch sensing signal lower than a level of a reference signal is first detected, storing the level of the touch sensing signal as a first signal strength and reporting a touch event is detected; and if the variation tendency of the temperature parameters is downward, and if the level of the touch sensing signal lower than the level of the reference signal is not first detected, calibrating the reference signal according to the touch sensing signal.

A method for fabricating a semiconductor die is provided. The method can include providing a semiconductor substrate, forming a set of field-effect transistors on the semiconductor substrate, each field-effect transistor in the set of field-effect transistors having a respective source, drain, gate, and body, forming a compensation circuit on the semiconductor substrate, and connecting the compensation circuit to the set of field-effect transistors in parallel, the compensation circuit configured to compensate a non-linearity effect generated by the set of field-effect transistors.

A device for detecting a user's intention to lock or unlock a motor vehicle opening element, this device being integrated into a handle, including: an inductive sensor that includes an LC resonant circuit consisting at least of a coil and a main capacitor; a handle target; a microcontroller equipped with a unit for measuring the resonant frequency of the LC resonant circuit; an adjustment device for adjusting the value of the total capacitance of the LC resonant circuit, this adjustment device providing at least two different total capacitance values for the LC resonant circuit.

Embodiments relate to circuit for reversing a threshold voltage shift of a transistor. The circuit includes a current mirror for sensing a transistor current and generating a mirrored current corresponding to the sensed transistor current, a gate biasing module for providing a gate bias to the transistor, and a calibration engine configured to receive the mirrored current from the current mirror and to control the gate biasing module in response to determining whether the mirrored current is outside of a predetermined range indicative of a shift in the threshold voltage of the transistor. The gate biasing module includes a gate biasing circuit configured to operate the transistor in a region where hot carrier injection (HCI) is present, and a gate switch for coupling the gate biasing circuit to a gate terminal of the transistor.

A device for detecting a user's intention to lock or unlock a motor vehicle opening element, this device being integrated into a handle, including: an inductive sensor that includes an LC resonant circuit consisting at least of a coil and a main capacitor; a handle target; a microcontroller equipped with a unit for measuring the resonant frequency of the LC resonant circuit; an adjustment device for adjusting the value of the total capacitance of the LC resonant circuit, this adjustment device providing at least two different total capacitance values for the LC resonant circuit.