Abstract: The present disclosure relates to a circuit for setting an amplifier supply voltage for an amplifier. The circuit comprises a switch circuit having a first transistor arranged to switchably couple a first supply voltage to a supply terminal of the amplifier and a second transistor arranged to switchably couple a second supply voltage to the supply terminal of the amplifier, wherein a magnitude of the first supply voltage is greater than a magnitude of the second supply voltage. The circuit further comprises a control circuit arranged to control the switch circuit to set an amplifier supply voltage at the supply terminal of the amplifier based on an output signal of the amplifier.

Abstract: Embodiments of the present disclosure relate to multi-band FDD transceivers. An example transceiver includes a LO, configured to generate a LO signal to be shared between a receiver and a transmitter of the transceiver. Both the receiver and the transmitter use quadrature signal processing and are configured to multi-band operation. Sharing a single LO to perform frequency conversion of different frequency bands of received and transmitted signals advantageously allows reducing the number of LOs used in a multi-band FDD transceiver.

Abstract: A fluid sensor device can include a housing having an inlet and an outlet. The housing can have a fluid reservoir, a sensing assembly, a plunger, a valve, and a plurality of channels. The fluid sensor module can be used to sense constituents in a sample fluid (e.g. patient's blood or dialysate) during a treatment process, such as kidney dialysis procedures. The fluid sensor module can be connected in-line to a medical device to sense the sample fluid.

Abstract: An electrochemical sensor is provided which may be formed using micromachining techniques commonly used in the manufacture of integrated circuits. This is achieved by forming microcapillaries in a silicon substrate and forming an opening in an insulating layer to allow environmental gases to reach through to the top side of the substrate. A porous electrode is printed on the top side of the insulating layer such that the electrode is formed in the opening in the insulating layer. The sensor also comprises at least one additional electrode. The electrolyte is then formed on top of the electrodes. A cap is formed over the electrodes and electrolyte. This arrangement may easily be produced using micromachining techniques.

Abstract: Low-leakage switch circuit techniques to reduce leakage current of an off-state switch, while maintaining a low on-resistance. The low-leakage switch circuit may allow measurement of low current signals in a transimpedance amplifier with improved accuracy without, the need for calibration. The low-leakage switch circuit may include a bootstrapping path connecting two or more terminals or voltage nodes of an off-state switch in the switch circuit. The bootstrapping path is configured to bootstrap major leakage current contributors in the switch circuit, such as the substrate diode leakage, the subthreshold leakage, or combinations thereof.

Abstract: A multiple operating-mode comparator system can be useful for high bandwidth and low power automated testing. The system can include a gain stage configured to drive a high impedance input of a comparator output stage, wherein the gain stage includes a differential switching stage coupled to an adjustable impedance circuit, and an impedance magnitude characteristic of the adjustable impedance circuit corresponds to a bandwidth characteristic of the gain stage. The comparator output stage can include a buffer circuit coupled to a low impedance comparator output node. The buffer circuit can provide a reference voltage for a switched output signal at the output node in a higher speed mode, and the buffer circuit can provide the switched output signal at the output node in a lower power mode.

Abstract: A source stochastic signal is deconstructed into one or more components using a decomposition process. The decomposition process deconstructs the source stochastic signal into at least one component which encodes the oscillatory behavior of the source stochastic signal. The one or more components are mapped, using one or more trained models, to a pair of target components which encode the estimated oscillatory behavior and estimated steady-state behavior of a target stochastic signal. The target stochastic signal is then reconstructed from the oscillatory behavior target signal by shifting the oscillatory behavior target signal so that its average value aligns with the average value of the steady-state behavior target signal. The source stochastic signal and the target stochastic signals can be biological signals having a related or common origin, such as photoplethysmogram (PPG) signals and arterial blood pressure (ABP) waveforms.

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communications, comprising receiving an input data sequence of a set of bits, wherein the input data sequence includes at least a portion of a set of CRC interleaved information bits, and wherein a number of the set of bits is at least 32. The implementations further include encoding the input data sequence by a polar encoder to define an intermediate polar encoded data sequence, the polar encoder having a combinational circuit including a plurality of stages that operate in a same clock cycle. Additionally, the implementations further include encoding the intermediate polar encoded data sequence for each of the plurality of stages according to a polar encoder factor graph to obtain a final polar encoded data sequence. Additionally, the implementations further include transmitting a polar encoded codeword on a control channel based on the final polar encoded data sequence.

Abstract: Systems, devices, and methods related to temperature sensors for electronic devices are provided. An example temperature sensor device includes analog temperature sensor circuitry to generate a plurality of voltages indicative of a temperature; an analog-to-digital converter (ADC) disposed downstream of the analog temperature sensing circuitry; switched-capacitor amplifier circuitry disposed before the ADC, the switched-capacitor amplifier circuitry comprising a single-ended amplifier to amplify the plurality of voltages with respect to a common voltage; a first switch coupled between the analog temperature sensor circuitry and the switched-capacitor amplifier circuitry to provide a sampling phase and an integration phase; and digital calculation circuitry to calculate a temperature value based on the plurality of amplified voltages.

Abstract: Herein disclosed are multiple embodiments of a signal-processing circuit that may be utilized in various circuits, including conversion circuitry. The signal-processing circuit may receive an input and produce charges on multiple different capacitors during different phases of operation based on the input. The charges stored on two or more of the multiple different capacitors may be utilized for producing an output of the signal-processing circuit, such as by combing the charges stored on two or more of the multiple different capacitors. Utilizing the charges on the multiple different capacitors may provide for a high level of accuracy and robustness to variations of environmental factors, and/or a low noise level and power consumption when producing the output.

Abstract: A microfabricated thermal platform can be formed over a substrate, such as a silicon wafer, that may form part of the platform. The substrate is coated in a thermally-insulating material, which may be an organic polymer such, as polyimide or SUS. The surface of the thermally-insulating material may include an arrangement of one or more thermal sites, with each site having a reaction plate (or thermal plate) over which chemical reactions may occur. A heating element may be positioned beneath each reaction plate. A fluidic medium, such as a liquid or a gas, may be disposed over the thermal sites. One application is in chemical and biological reactions. In such reactions, the fluidic medium may be an aqueous solution which comprises reagents for those reactions. The fluidic medium may be an ionically conducting fluid, organic solution or a gas. Precise temperature control enables the correct reactions.

Abstract: A new method and circuit arrangement for operating a stepper motor in a voltage-based operating mode with a control loop over the whole operating range of speeds of a stepper motor. The method/circuit arrangement includes calculating a load angle of the stepper motor. The load angle is then used to calculate a voltage-based control signal suitable for operating a known motor driver circuit, such as a chopper, to drive the stepper motor coils. This enables improved control over the stepper motor which can improve control stability.

Abstract: A semiconductor fabrication control system and method of operation can include: detecting a status with a control board communicatively coupled to a semiconductor fabrication tool; collecting process information from the semiconductor fabrication tool with the control board based on the status changing or a predetermined time elapsing; storing the process information to a server with the control board communicatively coupled to the server by a network connection; and engaging an auto-stop mechanism of the semiconductor fabrication tool to prevent the semiconductor fabrication tool from running based on the process information being wrong.

Abstract: This disclosure relates to electronic chip identifiers, ECIDs. In one example an electronic device is disclosed, which includes an identity unit configured to store an ECID that uniquely identifies the electronic chip, and a multi-purpose pin for use in outputting the ECID from the electronic device. The multi-purpose pin is also for a function of the electronic device that is unrelated to electronic chip identification. The identity unit is configured to output the ECID from the electronic device using the multi-purpose pin such that the electronic device can be uniquely identified using the multi-purpose pin.

Abstract: Systems and methods are provided for a digital pen cap that can be positioned on the end of a stylus. The digital pen cap includes sensors for measuring position and orientation of the tip of the stylus, a controller configured to process the sensor data and output processed data, a memory for storing the processed data, and a transmitter for transmitting the processed data.

Abstract: System and apparatus for carbon dioxide detection within an automobile. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a stationary and moving vehicle. There is a need for a such a system to prevent loss of life and contribute to a safer traffic environment. This disclosure provides a highly efficient optical measurement system based on principals of optical absorption spectroscopy. It detects the presence of neglected children and animals and changes the vehicle's interior environment accordingly so as to preclude many potentially dangerous conditions. The present disclosure can also optimize ventilation for a driver. To this end, a driver can maximize alertness and attentiveness.

Abstract: A radio frequency, RF, receiver circuit that is configured to simultaneously monitor a two or more different RF frequencies. The RF receiver circuit uses a sub-sampler to sub-sample an RF signal that is at any of the monitored RF frequencies, and the sub-sampled signal is then demodulated and a digital code that was encoded in the RF signal is recovered. The RF receiver circuit may be particularly low power, in part owing to using the same sub-sampler for each of the two or more monitored RF frequencies, and not relying on superheterodyning. Furthermore, monitoring two or more different RF frequencies simultaneously means that signals received on the monitored RF frequencies may be acted on very quickly. These characteristics make the RF receiver circuit particularly suitable for use in low-power wake-up receivers, such as Bluetooth Low Energy (BLE) wake-up receivers.

Abstract: Systems and methods embodiments are described for low-power, low-area current reference generator circuits that deliver a stable current bias for applications such as wake-up circuits. The current reference generator circuit provides for a nearly temperature-independent small-area bias current generator that uses a single pair of BJTs to reliably output a nominal 150 nA bias current that, irrespective of variations in process, supply voltage, and temperature (PVT), and local device mismatch, remains in a range between 120 nA and 180 nA. Advantageously, the circuit, which may be powered from and supply that is operationally functional at as low as about 1.0 V, does not require a calibration procedure or the combination of traditional PTAT and CTAT circuitries.

Abstract: A digital technique to reduce or minimize switching in a DAC by using a partial DAC data ignore switching mode. In the partial DAC data ignore switching mode, a control circuit compares first and second data, such a first and second digital words, and operates corresponding switches only when the first data differ from the second data. The techniques are applicable to many types of DACs, including voltage output DACs, current output DACs, variable resistance DACs, digital rheostats, digital potentiometers, digiPOTs.

Abstract: A secure industrial control system is disclosed herein. The industrial control system includes a plurality of industrial elements (e.g., modules, cables) which are provisioned during manufacture with their own unique security credentials. A key management entity of the secure industrial control system monitors and manages the security credentials of the industrial elements starting from the time they are manufactured up to and during their implementation within the industrial control system for promoting security of the industrial control system. An authentication process, based upon the security credentials, for authenticating the industrial elements being implemented in the industrial control system is performed for promoting security of the industrial control system. In one or more implementations, all industrial elements of the secure industrial control system are provisioned with the security credentials for providing security at multiple (e.g., all) levels of the system.