A transmission interface module includes a receiving unit, a transmitting unit, a multiplexer, and a processing unit. An output terminal and a control terminal of the receiving unit are electrically connected to the processing unit. The input terminal and the control terminal of the transmitting unit are electrically connected to the processing unit, and the control terminal of the multiplexer is electrically connected to the processing unit. The transmission interface module respectively adjusts a turn-on state or a turn-off state of the analog power terminal, the digital power terminal, the processing unit, the receiving unit, the transmitting unit, and the multiplexer through a plurality of operation modes to transmit the detecting signals.

A method and a circuit for measuring an absolute voltage signal, such that the circuit comprises: an A/D convertor, and a controller adapted for: a) obtaining a first digital reference value for a first reference signal having a positive temperature coefficient; b) obtaining a second digital reference value for a second reference signal having a negative temperature coefficient; c) obtaining a raw digital signal value for the signal to be measured, while applying a same reference voltage for step a) to c); and d) calculating the absolute voltage value in the digital domain using a mathematical function of the first and second digital reference value, and the raw digital signal value.

A sensor node is provided having a radio frequency (RF) circuit and a sensor interface circuit. The RF circuit wirelessly harvests energy from an external device such as a smart phone to produce a voltage at an output to charge a storage capacitor. The sensor interface circuit is configured to communicate with a sensor. In response to a request from the external device, the sensor node provides a voltage level of the capacitive element to the external device. The external device uses the voltage level to determine capabilities of the sensor node and to control sensing functions of the sensor node. In another embodiment, a method is provided to operate the sensor node.

In a system and method for correcting a stress-impaired signal in a circuit, a calibration circuit produces a first calibrated voltage based on a base-emitter voltage of one or more pnp transistors, a second calibrated voltage based on a base-emitter voltage of one or more npn transistors, and a voltage proportional to absolute temperature. A set of reference values are generated based on these voltages. A gain correction factor is calculated based on a function of the set of reference values and a set of temperature-dependent values, and the stress-impaired signal is corrected based on the gain correction factor.

The present invention relates to integrated circuits. More specifically, embodiments of the present invention provide methods and systems for determining temperatures of an integrated circuit using an one-point calibration technique, where temperature is determined by a single temperature measurement and calculation using known electrical characteristics of the integrated circuit.

A method for measuring a residual DC voltage in a liquid crystal device including an active region (R1) having a plurality of liquid crystal capacitors and a plurality of TFTs, and a non-active region (R2) positioned in a region outside the active region and having at least one monitoring capacitor (MVr1), in which the plurality of liquid crystal capacitors and the at least one monitoring capacitor include a liquid crystal layer, the method includes a step of generating a V-I curve by applying a positive and negative symmetrical triangular wave voltage to one of a pair of electrodes of the at least one monitoring capacitor and measuring a current flowing through the other of the pair of electrodes, a step of measuring, in the V-I curve, a voltage Vmax having a maximum absolute value where a current value reaches a positive maximum value or minimum value, and a voltage Vmin having a maximum absolute value where a current value reaches a negative minimum value or maximum value, and a step of measuring one-half of the sum of the voltage Vmax and the voltage Vmin as the residual DC voltage.

The embodiment the disclosure provides a monitoring circuit and a storage system. The monitoring circuit includes a voltage detection module and a logic circuit module. The voltage detection module is configured to output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively. The logic circuit module is configured to output a monitoring signal through a fourth node; determine whether the first detection signal has a first preset level, whether the second detection signal has a second preset level, and whether the third detection signal has a third preset level, respectively; determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level.

A voltage monitoring circuit is disclosed. An apparatus includes a first physical interface circuit and a real-time oscilloscope circuit configured to monitor a first voltage provided to the first physical interface circuit. The real-time oscilloscope is configured to receive an indication that an error was detected in data transmitted from the first physical interface to a second physical interface circuit. The real-time oscilloscope is further configured to provide for debug, to a host computer external to the first interface, information indicating a state of the first voltage at a time at which the error was detected.

An electrode lead having a plug for connecting to an implant having a control device and a communication antenna connected to the control device, and having at least one electrical conductor and one insulating tube insulating the at least one electrical conductor. To simply/reliably transmit information of the electrode lead to the implant (with a low expenditure of energy), a hermetically sealed passive RFID label is embedded: in the insulating tube, and/or in the plug, or in an insulating body of a separate additional part connectable to the insulating tube or the plug. The RFID label has an RFID chip and an inlay antenna connected in an electrically conducting manner to the RFID chip. The inlay antenna is electromagnetically coupled to the at least one electrical conductor and the communication antenna. A corresponding method for identifying an electrode lead and a corresponding implant are also contemplated.

Systems and methods for calibrating a voltage measurement device are provided herein. The voltage measurement device generates a reference current signal and senses the reference current signal in a conductor under test. A calibration system may control a calibration voltage source to selectively output calibration voltages in a calibration conductor. The calibration system may obtain data from the voltage measurement device captured by the voltage measurement device when measuring the calibration conductor. Such data may include one or more reference current measurements, one or more voltage measurements, etc. The calibration system utilizes the obtained measurements to generate calibration data which may be stored on the voltage measurement device for use thereby during subsequent operation. The calibration data may include one or more lookup tables, coefficients for one or more mathematical formulas, etc.