Abstract: A neuromimetic circuit includes: a primary single photon optoelectronic neuron; a synapse in optical communication with the primary single photon optoelectronic neuron; and an axonic waveguide in optical communication with the primary single photon optoelectronic neuron and the synapse such that the axonic waveguide optically interconnects the primary single photon optoelectronic neuron and the synapse.

Abstract: A device and method for terahertz signal generation are disclosed. Oscillators are arranged in a two-dimensional array, each oscillator connected to a corresponding antenna. Each oscillator is unidirectional connected to its adjacent oscillators by a phase shifter. A method for generating a steerable terahertz signal utilizes an array of oscillators connected by corresponding phase shifters. A terahertz signal having a fundamental frequency is generated using the array. The phase shift of one or more of the phase shifters is varied in order to vary the fundamental frequency and/or steer the signal generated by the array.

Abstract: A controller for a motor vehicle powertrain, the controller being configured to control the amount of torque generated by each of a plurality of drive torque sources, each drive torque source being coupled via a respective torque transfer arrangement to a respective group of one or more wheels, the controller being configured to cause a first of the drive torque sources, during acceleration, deceleration and substantially constant speed operation, substantially continually to apply a drive torque to a first group of one or more wheels to which the first drive torque source is coupled acting in a first direction relative to a longitudinal axis of the vehicle and causes a second of the drive torque sources, during acceleration, deceleration and substantially constant speed operation, substantially continually to apply a drive torque to a second group of one or more wheels to which the second drive torque source is coupled, the direction of drive torque applied to the second group being in a second direction opp

Abstract: Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.

Abstract: There is provided a terahertz device including: a terahertz element configured to generate an electromagnetic wave; a reflection film provided at a position facing the terahertz element and configured to reflect the electromagnetic wave generated from the terahertz element in one direction; and an encapsulating material configured to encapsulate the terahertz element and the reflection film.

Abstract: A crystal oscillator and a startup method for initiating operation of a crystal oscillator with a crystal resonator including a first terminal and a second terminal, an electronic oscillator circuit connected to the crystal resonator, a first capacitor including first and second terminals, the second connected to the first terminal of the crystal resonator, a second capacitor including first and second terminals, the second connected to the second terminal of the crystal resonator. A switch includes first, second and third terminals, wherein an electrical conductivity between the first terminal and the second terminal of the switch is controllable by a voltage at the third terminal, wherein the first terminal of the switch is connected to the first terminal of the first capacitor and wherein the second terminal of the switch is connected to the first terminal of the second capacitor.

Abstract: A vibration device has a substrate including a first surface and a second surface located on an opposite side to the first surface, a heater provided on the first surface side of the substrate, a temperature sensor provided on the first surface side of the substrate, a vibration element disposed on the first surface side of the substrate, a lid including a third surface joined on the first surface side and a fourth surface located on an opposite side to the third surface, and a circuit provided on one of the first surface, the second surface and the fourth surface, and including a temperature control circuit configured to control the heater based on an output of the temperature sensor.

Abstract: The present disclosure provides an oscillator circuit, a chip and an electronic device. The oscillator circuit includes two charge and discharge circuits, a reference voltage switching module, two comparators and a logic control module. When an output of either of the comparators, the logic control module controls one charge and discharge circuit connected to the comparator to discharge, controls the other charge and discharge circuit to charge, and controls the reference voltage switching module to switch a reference voltage of the comparator to a second voltage. When the output of the comparator transitions back, the logic control module controls the one charge and discharge circuit to charge. When the output of the comparator transitions again, the logic control module controls the reference voltage switching module to switch the reference voltage of the comparator to a first voltage, and controls one charge and discharge circuit to stop charging.

Abstract: Various embodiments of the invention relate to calibrate a wideband segmented Voltage Controlled Oscillator (VCO). Upon initial calibration, information of frequency spanning ranges of each segment in the VCO may be saved into a memory. When the VCO is used or activated, a microcontroller reads data from the memory and applied selected information accordingly. The initial calibration involves a frequency sweep process beginning from a first segment with an initial frequency and records any lock detection (LD) signal to the MCU when a frequency/phase lock is engaged from an unlock status or interrupted from a lock status. With the LD signals, frequency bands of the segments may be calibrated, adjusted for temperature compensated, and finalized after associating adjacent segment frequency overlap zone. A frequency band for a segment may be further segmented into multiple sub-bands with corresponding charge pump currents designated respectively for improved phase lock loop phase noise performance.

Abstract: A battery control system includes first and second batteries each including first and second terminals configured to output a first voltage, third and fourth terminals configured to output a second voltage, a plurality of individually housed batteries, and a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first, second, third, and fourth terminals. A control module is configured to selectively provide the first voltage from either one of the first battery and the second battery to a first set of loads and selectively provide the second voltage from either one of the first battery and the second battery to a second set of loads.

Abstract: The technology is generally directed towards a pulse generation component that outputs a control pulse with a timing delay. A qubit state decision component uses an analog kernel to perform a linear filtering operation on (e.g., multiplies and integrates) a qubit signal to obtain a result corresponding to a qubit state, and compares the result to a threshold value to determine a measurement outcome result corresponding to the qubit state. A conditional gate component conditionally gates the control pulse based on the measurement outcome result.

Abstract: An embodiment of the present disclosure relates to a device comprising an electronic circuit; an oscillation circuit comprising a quartz crystal, configured to provide a clock signal to the electronic circuit; and a heater configured to increase the temperature of the quartz crystal.

Abstract: Oscillators and methods for realignment of an oscillator are provided. An oscillator includes an inductor having first and second terminals and a capacitor electrically coupled in parallel to the inductor at the first and second terminals. A first transistor of a first conductivity type is electrically coupled to the first terminal and a voltage source. The first transistor includes a gate configured to receive a first realignment signal. When the first realignment signal is in a realignment state, the first transistor is turned on and a voltage of the first terminal is increased from a low level to a high level in order to align a phase of a waveform of the oscillator.

Abstract: A device includes a MEMS resonator and oscillator circuit coupled to the MEMS resonator. The circuit includes a first transistor having a first control terminal and first and second current terminals, and a second transistor having a second control terminal and third and fourth current terminals. The circuit includes a resonator coupling network configured to inductively couple MEMS resonator terminals to the first and third current terminals, and to couple the first and third current terminals. The circuit includes a control terminal coupling network configured to couple the first and second control terminals, and to reduce a voltage swing at the first and second control terminals relative to a voltage swing at the first and third current terminals. The circuit includes a second terminal coupling network configured to couple the second and fourth current terminals. A second terminal coupling network resonant frequency is approximately that of MEMS resonator.

Abstract: A modular power distribution device for vehicles that couples to adjacent devices mechanically and electrically without a common housing or mounting plate. The devices share user selectable electrical connections internally to change the function of the devices and reduce the complexity of adding additional devices. The electrical contacts on the device are protected by a weather-resistant seal created when the device engages with wiring, adjacent devices or the provided covers. Covers may also house a communications receiver/transceiver and a microcontroller to control the device using wired or wireless communications. A mounting bracket is removably attached to each device and may be separated from the device without removing the mounting bracket from the vehicle. Each device can couple to a preceding device while the preceding device remains mounted to a substrate and connected to wiring. The devices may house semiconductor relays or electromechanical relays for use in direct current electrical systems.

Abstract: A vibrator device includes a semiconductor substrate, a vibrator unit, a cover, and an insulating film. The vibrator unit is disposed at a first surface of the semiconductor substrate, and includes a vibrator element, and an excitation electrode disposed at the vibrator element and having a portion facing the semiconductor substrate. The cover is bonded to the first surface in a joint portion surrounding the vibrator unit. The insulating film is disposed at the first surface. The insulating film overlaps the portion of the excitation electrode in plan view, and is absent at the joint portion of the semiconductor substrate and the cover.

Abstract: A voltage controlled oscillator (VCO) is described. The VCO includes a plurality of nodes coupled with a plurality of transistors, and a first inductor-capacitor (LC) tank coupled with a second LC tank. The first LC tank and the second LC tank include a shared inductor structure coupled to the plurality of nodes. The first LC tank and the second LC tank each include a capacitor. The capacitors are each coupled on a first side to a node of the plurality of nodes and on a second side to a respective capacitor in the other LC tank. The first LC tank and the second LC tank are configured to resonate at a fundamental frequency for differential-mode signals, and the first LC tank and the second LC tank are configured to resonate at twice the fundamental frequency for common-mode signals.

Abstract: A single-chamber-type temperature-sensor-provided crystal unit includes: a single chamber; and a quartz-crystal vibrating piece and a temperature sensor, provided in the single chamber. The quartz-crystal vibrating piece has a square planar shape. The quartz-crystal vibrating piece is secured in the single chamber at two securing portions via conductive members. The two securing portions are in proximities of both ends of a first side of the quartz-crystal vibrating piece. The temperature sensor has a rectangular parallelepiped shape. The temperature sensor is disposed such that a longitudinal surface of the temperature sensor is parallel to a line segment Y and the temperature sensor is close to a side of the two securing portions within the single chamber, when a line segment connecting the two securing portions is defined as the line segment Y.

Abstract: A power supply method includes detecting whether a battery is newly connected to an unused battery interface of an electronic device during operation of the electronic device. The power supply method also includes, based on detecting that the battery is newly connected to the unused battery interface, and determining that a capacity of the newly connected battery is greater than a capacity of a currently operating battery, controlling the newly connected battery to function as an operating battery to provide an electric power to the electronic device.

Abstract: A control circuit switches an oscillation circuit from a second operation mode to a first operation mode. When a first predetermined signal is detected and mode switching permission information indicates that the switching from the second operation mode to the first operation mode is permitted, then the oscillation circuit switches from the second operation mode to the first operation mode. When the first predetermined signal is not detected and the mode switching permission information indicates that the switching from the second operation mode to the first operation mode is not permitted, then the oscillation circuit continues in the second operation mode.