Abstract: An example apparatus includes: calibration circuitry configured to determine a second current at a second terminal of a second impedance circuit based on a first parasitic capacitance, a first impedance value, a third impedance value, a first voltage, and a second voltage; determine a third voltage at a second terminal of a second impedance circuit based on the first parasitic capacitance, a second impedance value, the third impedance value, the second voltage, and the second current; and determine a second parasitic capacitance between the second terminal of the second impedance circuit and the second terminal of a fifth impedance circuit based on the second current, the third voltage, a third current at the second terminal of the fifth impedance circuit, and a fourth voltage at the second terminal of the fifth impedance circuit.

Abstract: A system comprises a photosensor and a controller. A first photoemitter transmits light onto objects at first height, a second photoemitter onto objects at second, lower height, and a third photoemitter onto objects at third, lowest height. The controller causes one of the photoemitters to transmit modulated light and the photosensor to receive reflections from a scene. The controller determines a depth map for the corresponding height based on phase differences between the transmitted and reflected light. In some examples, the system is included in an autonomous robot's navigation system. The navigation system identifies overhanging objects at the robot's top from the depth map at the first height, obstacles in the navigation route from a second depth map at the second height, and cliffs and drop-offs in the ground surface in front of the robot from the third depth map at the third height.

Abstract: Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to cyclic boronic acid ester derivatives and their use as therapeutic agents.

Abstract: Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to cyclic boronic acid ester derivatives and their use as therapeutic agents.

Abstract: A circuit includes an interference frequency tracking circuit, a PLI synthesizer circuit, and a summing circuit. The interference frequency tracking circuit is configured to track a frequency of an interference signal derived from a target signal, and provide a frequency selection value representing the frequency of the interference signal. The PLI synthesizer circuit is configured to generate, based on the frequency selection value, a correction signal at the frequency of the interference signal, adjust a phase of the correction signal to match a phase of the interference signal in the target signal, and adjust an amplitude of the correction signal to match an amplitude of the interference signal in the target signal. The summing circuit is configured to subtract the correction signal from the target signal.

Abstract: An ECG signal acquisition system includes a first amplifier which has a non-inverting input adapted to be coupled to a first differential input, an inverting input adapted to be coupled to a second differential input, and an output. The system includes first and second biasing resistors coupled between the non-inverting and inverting inputs of the first amplifier. The system includes an average estimation circuit which has a first input coupled to the non-inverting input of the first amplifier and a second input coupled to the inverting input of the first amplifier. The system includes a driver amplifier which has an inverting input coupled to the output of the average estimation circuit, a non-inverting input coupled to receive a reference common-mode voltage, and an output. The system includes a low-pass filter coupled between the output of the driver amplifier and the biasing resistors.

Abstract: An example apparatus includes: driver circuitry having a first terminal and a second terminal; and voltage control circuitry having a first terminal and a second terminal, the first terminal of the voltage control circuitry coupled to the first terminal of the driver circuitry, the second terminal of the voltage control circuitry coupled to the second terminal of the driver circuitry, the voltage control circuitry configured to supply an LED supply voltage.

Abstract: An example apparatus includes: a first switch having a control terminal; a second switch having a first terminal and a control terminal; detection circuitry having a first terminal and a second terminal the detection circuitry configured to detect a parasitic resistance at the first terminal of the second switch; and controller circuitry having a first terminal and a second terminal, the first terminal of the controller circuitry coupled to the control terminal of the first switch and the control terminal of the second switch, the second terminal of the controller circuitry coupled to second terminal of the detection circuitry, the controller circuitry configured to disable the first switch responsive to the detection of the parasitic resistance.

Abstract: The invention provided herein a pharmaceutical process used for an extraction of proteins from pancreatic sample and estimation of the extracted proteins. Moreover, the invention provides a use of suitable is selected from citrate-phosphate buffer and bicarbonate buffer capable to extract proteins from pancreatic sample. The invention further provides an analytical method to perform estimation of extracted proteins. This process provides an improved extraction method to quantify protein present in the pancreatic sample.

Abstract: The present invention provides an improved method for analysis of pancreatic protein mixture comprises at least more than one biological active protein selected from amylase, protease and lipase, wherein the analysis and quantification of pancreatic protein mixtures is performed with Size Exclusion High Performance Liquid Chromatography (SE-HPLC). Also, the present invention provides the process for the separation, analysis and quantification of low molecular weight and high molecular weight enzymes present in pancreatic protein mixture.

Abstract: Systems, apparatus, articles of manufacture, and methods are disclosed to detect a pace pulse in an electrocardiogram (ECG) signal. An example apparatus includes programmable circuitry configured to execute instructions to: identify a leading edge of a pulse in an input signal based on an amplitude change; identify a transition time of the leading edge of the pulse; validate the leading edge of the pulse based on the amplitude change and transition time; identify a trailing edge of the pulse; determine a width of the pulse between the leading edge and the trailing edge; and validate the pulse based on the width.

Abstract: An example apparatus includes: calibration circuitry configured to determine a second current at a second terminal of a second impedance circuit based on a first parasitic capacitance, a first impedance value, a third impedance value, a first voltage, and a second voltage; determine a third voltage at a second terminal of a second impedance circuit based on the first parasitic capacitance, a second impedance value, the third impedance value, the second voltage, and the second current; and determine a second parasitic capacitance between the second terminal of the second impedance circuit and the second terminal of a fifth impedance circuit based on the second current, the third voltage, a third current at the second terminal of the fifth impedance circuit, and a fourth voltage at the second terminal of the fifth impedance circuit.

Abstract: A system comprises a photosensor and a controller. A first photoemitter transmits light onto objects at first height, a second photoemitter onto objects at second, lower height, and a third photoemitter onto objects at third, lowest height. The controller causes one of the photoemitters to transmit modulated light and the photosensor to receive reflections from a scene. The controller determines a depth map for the corresponding height based on phase differences between the transmitted and reflected light. In some examples, the system is included in an autonomous robot's navigation system. The navigation system identifies overhanging objects at the robot's top from the depth map at the first height, obstacles in the navigation route from a second depth map at the second height, and cliffs and drop-offs in the ground surface in front of the robot from the third depth map at the third height.

Abstract: A time of flight (ToF) system comprises three photoemitters, a photosensor, and a controller. The first photoemitter transmits light onto objects at first height, the second photoemitter onto objects at second, lower height, and the third photoemitter onto objects at third, lowest height. The controller causes one of the photoemitters to transmit modulated light and the photosensor to receive reflections from the scene. The controller determines a depth map for the corresponding height based on phase differences between the transmitted and reflected light. In some examples, the ToF system is included in an autonomous robot's navigation system. The navigation system identifies overhanging objects at the robot's top from the depth map at the first height, obstacles in the navigation route from the depth map at the second height, and cliffs and drop-offs in the ground surface in front of the robot from the depth map at the third height.

Abstract: Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to cyclic boronic acid ester derivatives and their use as therapeutic agents.

Abstract: The disclosure provides a measurement circuit. The measurement circuit includes a control engine. An excitation source is coupled to the control engine. A first set of electrodes and a second set of electrodes are coupled to the excitation source and receive current from the excitation source. The control engine operates the excitation source in a first mode and a second mode. The control engine, in the first mode, measures a parasitic impedance associated with the first and the second set of electrodes, and the control engine, in the second mode, measures an impedance of the first and the second set of electrodes and of an external object.

Abstract: An ECG signal acquisition system includes a first amplifier which has a non-inverting input adapted to be coupled to a first differential input, an inverting input adapted to be coupled to a second differential input, and an output. The system includes first and second biasing resistors coupled between the non-inverting and inverting inputs of the first amplifier. The system includes an average estimation circuit which has a first input coupled to the non-inverting input of the first amplifier and a second input coupled to the inverting input of the first amplifier. The system includes a driver amplifier which has an inverting input coupled to the output of the average estimation circuit, a non-inverting input coupled to receive a reference common-mode voltage, and an output. The system includes a low-pass filter coupled between the output of the driver amplifier and the biasing resistors.

Abstract: The disclosure provides a receiver with high dynamic range. The receiver includes a photodiode that generates a current signal. A coupling capacitor is coupled to the photodiode, and generates a modulation signal in response to the current signal received from the photodiode. A sigma delta analog to digital converter (ADC) is coupled to the coupling capacitor, and generates a digital data in response to the modulation signal. A digital mixer is coupled to the sigma delta ADC, and generates an in-phase component and a quadrature component corresponding to the digital data. A processor is coupled to the digital mixer, and processes the in-phase component and the quadrature component corresponding to the digital data.

Abstract: Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to cyclic boronic acid ester derivatives and their use as therapeutic agents.

Abstract: A transceiver system includes a clock generator and an analog-to-digital circuit (ADC). The transceiver system also includes a coupling correction circuit coupled to the clock generator and to the ADC, wherein the coupling correction circuit is configured to provide an in-phase correction and a quadrature-phase correction to a signal received by the ADC.