244 results about "Detector circuits" patented technology

Various wearable health monitoring devices are described herein. Some implementations include one or more emitter chamber covers injection molded out of a first material comprising transparent glass, one or more detector chamber covers injection molded out of a second material comprising transparent glass, and a light barrier construct injection molded out of a third material over the one or more emitter chamber covers and the one or more detector chamber covers. The third material may be opaque and can comprise glass and an optically absorbing pigment. Some implementations include a circuit board, emitter(s) mounted to the circuit board and arranged within the emitter chamber cover(s), and detector(s) mounted to the circuit board and arranged within the detector chamber cover(s). The circuit board, emitter(s), detector(s), emitter chamber cover(s), and detector chamber cover(s) can form part of a sensor assembly connected to a housing of the wearable health monitoring devices.

Apparatuses and methods per row activation counter testing (PRACT). A memory includes an aggressor detector circuit, which determines a row address to be an aggressor address after the row address is accessed a number of times. In a normal mode the address is an aggressor after a first number of activations, while in a PRACT mode the address is an aggressor after a second (generally lower) number of activations. For example, when the row is accessed a first value may be added to a count in the normal mode and a second (generally larger) value in the PRACT mode. When the count crosses a threshold, the row is an aggressor.

A circuit is provided. The circuit can include sensing circuits configured to sense differences between first and second currents on selected bit lines of an array of memory cells and produce outputs for the bit lines as a function of the difference, and a global programmable non-regular counter configured to continuously provide a count value to each of the sensing circuits in dependence on a clock signal, wherein each sensing circuit, of the sensing circuits, includes (i) a local detector circuit configured to detect a voltage (Vc) generated according to the difference and (ii) a reference voltage selector configured to receive reference voltages from a source and to select a single reference voltage (Vref), and wherein each sensing circuit produces an output according to (i) a difference between Vc and Vref and (ii) a stored count value received from the counter.

A detector circuit having a current conversion mechanism for a power converter is provided. An output terminal of the power converter is connected to a first terminal of an inductor. The detector circuit detects a current flowing through the inductor as a detected current, and converts the detected current into a detected voltage. The detector circuit compares the detected voltage with a reference voltage to generate a comparison signal. Each time when a level of the comparison signal reaches a reference level, the detector circuit counts a count value.

Event-based sensor systems and method for operating event-based sensor systems are disclosed. A sensor system includes an array of sensor elements arranged in columns and rows, wherein each sensor element in the array of sensor elements includes, a detector circuit, an active pixel sensor (APS) circuit, and a dynamic vision sensor (DVS) circuit, the DVS circuit including an event trigger switch configured to control application of a signal on an event trigger line in response to a pixel-specific event trigger signal.

A ripple voltage detector circuit comprises a pulse generator, a direct current-to-direct current (DC-DC) converter coupled to the pulse generator, and a first control loop coupled to the pulse generator and the DC-DC converter. The first control loop is configured to measure an output voltage of the DC-DC converter, determine an output ripple voltage of the output voltage, determine a ripple coefficient based on the output ripple voltage, determine a reference peak inductor current based on the ripple coefficient, and determine a peak value of an inductor current during a switching cycle, and transition a switching state of the DC-DC converter based on the reference peak inductor current and the peak value of the inductor current.

The application provides a bathtub lamp driven by wireless power transmission, which comprises a lamp holder and a lamp body wirelessly connected with the lamp holder. An active level signal of a PWM signal generated by an LED controller to control a R-LED module / G-LED module / B-LED module is modulated with a high-frequency signal corresponding to a fixed frequency generator through a modulation amplifier in the lamp holder to generate a wireless power transmission signal and amplify the wireless power transmission signal for output, the wireless transmission of the wireless power transmission signal and electric energy is realized through the cooperation of a corresponding transmitting resonator and a receiving resonator in the lamp body; the corresponding PWM signals in the respective wireless power transmission signals are extracted by a detector circuit in the lamp body and output to drive the R-LED module / G-LED module / B-LED module for variable light-emitting operations.

A circuit is disclosed. The circuit includes a transmitter having an input terminal arranged to receive input data and a transmission node arranged to transmit intermediate data corresponding to the input data, and a receiver having a receive node arranged to receive the intermediate data and an output terminal arranged to produce output data corresponding to the input data, the receiver further including a dV / dt detector circuit coupled to the receive node and arranged to stop the production of the output data at the output terminal when the dV / dt detector circuit detects a rate of change of voltage with respect to time greater than a predetermined threshold.

A demodulation circuit includes a slope detector circuit and a comparator circuit. The slope detector circuit is configured detect a change in the voltage and determine if the voltage rate of change meets or exceeds one of a rise threshold or a fall threshold. The comparator circuit is configured to set an upper limit and lower limit for rate of change, compare the voltage rate of change to the limits, determine that the voltage rate of change meets or exceeds the limits, if the voltage rate of change meets or exceeds the rising and falling rate of change limits, (v) set a lower limit for a falling rate of change, (vi) receive the voltage rate of change and determine that the voltage rate of change meets or exceeds the fall or rise threshold, if the voltage rate of change meets or exceeds the falling or rising rate of change.

The embodiment of the utility model provides a radiation detector module, a radiation detector and imaging equipment. The radiation detector module comprises a detector circuit board which is provided with a detector element for converting received rays emitted by a radiation source into electric signals, and the detector circuit board is provided with a first positioning hole; the collimator assembly is arranged on a transmission path of the rays and collimates the rays radiated to the detector element, and the collimator assembly is provided with a second positioning hole corresponding to the first positioning hole in position; and the frame supports the detector circuit board and the collimator assembly, the frame is provided with a positioning column, and the positioning column penetrates through the first positioning hole and the second positioning hole. According to the radiation detector module, the difficulty of alignment operation can be reduced, accumulation of alignment errors generated in multiple times of alignment operation is reduced, the alignment precision of all the components is improved, and then the detection precision of the radiation detector module is improved.

A memory device includes a test mode detector circuit that determines whether the memory device has entered a test mode based on at least one test mode entry signal received through at least one pin of a plurality of pins and generates a test mode detection signal, and a test pad connection circuit that electrically couples a first pin of the plurality of pins to a dedicated test pad of the test mode such that a signal applied to the first pin is transmitted to the dedicated test pad based on the test mode detection signal.

A Light Detection and Ranging (LIDAR) detector circuit includes a memory device comprising a first memory and a second memory, and at least one control circuit. The at least one control circuit is configured to execute first memory storage operations to store data indicated by detection signals received from one or more photodetector elements in the first memory during a first portion of a time between pulses of an emitter signal output from a LIDAR emitter element, and to execute second memory storage operations to include the data, which was stored in the first memory, in the second memory during a second portion of the time between the pulses of the emitter signal. Related devices and methods of operation are also discussed.

A processing circuit coupled to an imaging device includes a bus interface circuit configured to communicatively couple the processing circuit to the imaging device through a multipoint differential serial link; a detector circuit configured to detect a plurality of sequentially occurring signaling states of the multipoint differential serial link, the plurality of sequentially occurring signaling states relating to transmission of data packets through the multipoint differential serial link; and a controller. The controller is configured to: discard data packets received after the imaging device is powered on or initialized and until the imaging device is indicated to be in an active operating state; counting a transition sequence between a first signaling state of the multipoint differential serial link and a second signaling state of the multipoint differential serial link; and instructing the imaging device to be in the active operating state after the pre-configured number of data packets have been discarded.

Methods, apparatus, systems, and articles of manufacture to enable status change detection in a low power mode of a microcontroller unit are disclosed herein. An example integrated circuit (IC) includes a controller to determine that the IC is to enter a low power mode. The example IC includes a universal serial bus (USB) physical layer integrated circuit including a transceiver and a detector circuit. The transceiver is disabled while in the low power mode. The detector circuit is enabled while in the low power mode. The detector circuit is to determine whether a pinout of a USB receptacle is shorted to ground. The example IC includes a power control module (PCM) to disable the controller when entering the low power mode. Upon receipt of an indication that the ID pinout of the USB receptacle is shorted to the ground, the PCM initiates a boot sequence.

Provided are an iterative detection and decoding (IDD) circuit, which includes a multiple-input and multiple-output (MIMO) detector having low power consumption, an operation method of the IDD circuit, and a modem chip. The IDD circuit, which is configured to receive a signal including a symbol, includes a first detector configured to generate a first log-likelihood ratio based on the symbol by using a linear detection method, a decoding circuit configured to perform a first decoding operation based on the first log-likelihood ratio and to generate a post-log-likelihood ratio when the first decoding operation fails, and a second detector configured to, when the first decoding operation fails, generate a second log-likelihood ratio based on the symbol and the post-log-likelihood ratio by using a nonlinear detection method, wherein the decoding circuit is further configured to perform a second decoding operation based on the second log-likelihood ratio.

Device and method for measuring a junction temperature of a power semiconductor (3) using the resistance Rgint (32) of said semiconductor (3) comprising at least: a current injector circuit (5) injecting current pulses Iinj in the gate path of said power semiconductor (3) through the emitter of said power semiconductor, said current injector circuit (5) being driven by a digital injection control circuit (4, 6) to synchronize said current pulses within a stabilized part of ON states of the power semiconductor driver (1) PWM signal driving said power semiconductor (3), a peak detector circuit (7) to record emitter voltage peaks Ve at the terminals of the current injector circuit and generate a continuous signal Vpks dependent of the junction temperature Tj through integration of said voltage peaks, a signal conditioning circuit (8) to adapt the continuous signal Vpks dependent of the junction temperature into a range of 3V to 5V of a measurement system (9).

A device may have a reference divider circuit to divide a reference clock, a phase-frequency detector circuit to detect a detected phase difference and a detected frequency difference based on the reference divider output and a feedback clock, a loop filter circuit to filter the detector output, a voltage controlled oscillator (VCO) control output pin coupled to the loop filter output, a VCO clock divider control output pin to select a divisor of an external clock divider circuit, a divided VCO clock input pin for coupling to an output of the external clock divider circuit, a pulse-width modulation (PWM) circuit having a PWM clock input coupled to the divided VCO clock input pin, a period register to store a period value, a duty cycle register to store a duty cycle value and a pulse-width modulated output based on the period value and the duty cycle value.

Circuits and methods are provided that use a comparator circuit within a multi-level converter to identify a signal that controls access to a loop circuit. A loop circuit receives multiple signals requesting multiple currents from the loop circuit. A comparator within the loop circuit determines a control signal indicating one of the multiple signals that controls the loop circuit, where the one of the signals that controls the loop circuit is associated with a lowest current from multiple currents.

A detector circuit for a measurement instrument is described. The detector circuit includes a first signal input, a second signal input, and an averaging sub-circuit. The first signal input is configured to receive a first complex-valued measurement signal associated with an input signal received from a device under test. The second signal input is configured to receive a second complex-valued measurement signal associated with the input signal received from the device under test. The averaging sub-circuit is configured to determine an average of the first complex-valued measurement signal and of a complex conjugate of the second complex-valued measurement signal over a predetermined number of samples, thereby obtaining a complex-valued average signal. The averaging sub-circuit is configured to generate an output signal based on the complex-valued average signal. Further, a signal processing circuit and a measurement instrument are described.

A light detection and ranging (LIDAR) detector circuit includes a memory device and at least one control circuit. The memory device includes a non-transitory storage medium configured to store data indicating a detection event in a corresponding memory bin. The at least one control circuit is configured to receive a detection signal from one or more photodetector elements, identify the presence or absence of a detection event indicated by the detection signal during a portion of time between pulses of an emitter signal output from a LIDAR emitter element, and, in response to the identification of the presence or absence of a detection event, respectively, perform one of a first memory operation or a second memory operation to update the data in the corresponding memory bin. Related circuits and operating methods are also discussed.

A control system includes a movable device, memory, and circuitry. The movable device includes a reflector; paired movable portion; and a detector to detect deflection angle of the reflector. The circuitry outputs drive signals to the paired movable portions, respectively; generates the drive signals based on variables of a symmetry of each of the drive signals and a phase difference between the drive signals; detects, from the movable device, the deflection angle of the reflector by the detector; extract an amplitude of a high-frequency component from a detection signal; store, in the memory, information in which the amplitude of the high-frequency component is associated with values of the variables of the drive signals; select a combination of the values of the variables based on the high-frequency component and the information stored in the memory; and update the drive signals based on the combination of the values of the variables selected.

This invention relates to a detector support structure, specifically a space payload detector support structure and installation method that combines vibration isolation and heat dissipation. It primarily addresses the technical problem that existing detector support structures cannot simultaneously solve the vibration isolation and heat dissipation issues of space payload detectors. The structure includes a heat sink, a flexible heat-conducting cable, a heat-conducting plate, and a bracket. The heat sink is connected to the temperature control surface of the external space payload. One end of the flexible heat-conducting cable is connected to the heat sink, and the other end is connected to the heat-conducting plate. The heat-conducting plate has a glue injection groove, a temperature probe mounting groove, and a fixing hole on its end face. The detector circuit board and the detector body are respectively disposed on the upper and lower end faces of the heat-conducting plate, and the detector pins are connected to corresponding holes on the detector circuit board. The temperature probe is installed in the temperature probe mounting hole. The bracket is connected to both the detector circuit board and the external optical platform. This detector support structure effectively combines vibration isolation and heat dissipation.

Systems and methods for use in cloud-based digital vehicle alerting are disclosed. In an example, a device includes a global positioning system (GPS) unit, a wireless transmitter, an input voltage interface, a voltage detector circuit electrically connected to the input voltage interface and configured to detect a voltage at the input voltage interface, and alerting mode logic configured to transition from a non-alerting mode to an alerting mode in response to the voltage detected by the voltage detector circuit exceeding a threshold voltage, and transition from the alerting mode back to the non-alerting mode in response to the voltage detected by the voltage detector circuit not exceeding the threshold voltage for an entire delay interval, where the wireless transmitter is configured to transmit alerting vehicle telemetry data, which includes location information generated by the GPS unit, in response to the alerting mode of the alerting mode logic.

The present disclosure provides an apparatus and method for detecting a position in a drive-sensing integrated camera module. The position detection apparatus includes: a detector circuit that detects a detection signal including information about the position of a magnet from a coil, the coil being disposed in a housing and opposite to the magnet, the magnet being disposed on a lens barrel; and a control circuit that converts the detection signal into a count value, determines a conversion formula based on the count value and a change speed of the count value, and uses the determined conversion formula to detect a position value.

A detector circuit includes a parametric resonator circuit comprising a first varactor and a second varactor disposed in a loop. The parametric resonator has a conductor disposed between the first varactor and the second varactor. The detector circuit further includes a voltage sensing resonator circuit aligned on the parametric resonator circuit so that at least a first portion of the resonator circuit is disposed in the loop and a second portion is disposed outside the loop in an axial view.

An output control interface circuit for a static random access memory (SRAM) and an output control method for the same are provided. The output control interface circuit includes an SRAM control detector circuit and an SRAM data controller circuit. The SRAM control detector circuit receives a control signal, determines whether the control signal is stable, and outputs an indication signal correspondingly. The SRAM data controller circuit receives the indication signal and the SRAM output data signal output by the SRAM control detector circuit, and outputs an output data signal according to the indication signal. In response to determining that the control signal is not stable, the SRAM data controller circuit correspondingly outputs the output data signal with a preset value. In response to determining that the control signal is stable, the SRAM data controller circuit outputs the SRAM output data signal as the output data signal correspondingly.

The invention discloses a UV frequency band hectowatt-level bi-directional coupling and digital detector which comprises a bi-directional coupler and a detector circuit. A forward coupling signal FD and a reverse coupling signal RD of the bi-directional coupler are output to the detector circuit through a cable, and when a power value P0 is input into the bi-directional coupler, the coupling degree C of the coupler is gradually increased along with the increase of the working frequency f; the detector circuit comprises a digital detection circuit and a detection digital compensation circuit. The digital detection circuit is configured to process an input coupler signal through a detector and then output a detection voltage, and the detection voltage is a line segment having a fixed slope with the frequency within the frequency band range of the detector; the detection digital compensation circuit is configured to perform operation compensation on input detection voltage after voltage division and isolation of a first-stage operational amplifier so as to realize one-to-one trend of the detection voltage in a passband, and the requirements of modern digital communication for high efficiency, stability and accuracy are met.

An ADC (50) is disclosed. It has two VTCs (110a, 110b) for converting a first and a second input voltage, respectively, to pulses with delays corresponding to the magnitudes of these voltages. It further has a pulse-detector circuit (120) coupled to outputs (114a, 114b) of the two VTCs (110a, 110b). The pulse-detector circuit (120) is configured to make a transition from a first logic state (‘0’) to a second logic state (‘F) at a first output (124a) of the pulse-detector circuit (120) in response to the start of the pulse from one of the VTCs (110a) and to make a transition from the first logic state (‘0’) to the second logic state (‘F) at a second output (124b) of the pulse-detector circuit (120) in response to the start of the pulse from the other VTC. Furthermore, the pulse-detector circuit (120) is configured to reset both the first and the second output (124a, 124b) to the first logic state (‘0’) in response to both the first output (124a) and the second output (124b) of the pulse-detector circuit (120) being set in the second logic state (‘1’). The ADC (50) further has a first TDC (130a) coupled to the first output (124a) of the pulse-detector circuit (120) and a second TDC (130b) coupled to the second output (124b) of the pulse-detector circuit (120).

An injection locked ring oscillator (ILRO) system is disclosed. The ILRO system includes an ILRO circuit configured to receive a plurality of injection control signals and a phase control signal, and to generate a plurality of output clock signals; a phase detector circuit configured to receive the output clock signals and to generate a phase output signal based on phase differences of particular pairs of the output clock signals; and a phase to voltage circuit configured to receive the phase output signal from the phase detector circuit, and to generate the phase control signal based on the phase output signal, where the phase control signal presents a negative feedback phase signal to the ILRO circuit for the phase differences in the particular pairs of the output clock signals.

A system and method for analyzing an air sample from a human uses a collection module that has a plurality of metal oxide semiconductor sensors that have different resistance responses to different gaseous compounds. A detector circuit reads the output of the sensors as analog signals for both ambient air and the air sample from the human. The ratios of the analog signals from ambient air and from the air sample can be compared to similar information from other health and unhealthy human subjects to determine the health status of the human. In one embodiment the system is used for breath analysis.