Abstract: An optical receiver implements a method to provide a digital output of a received on-off keyed optical signal. The method includes receiving an on-off keyed optical signal via a coherent optical front-end receiver utilizing a locally mixed laser LO for a reference signal to perform quadrature detection of the optical signal to generate an electrical signal, performing symbol/slot timing recovery on the electrical signal using a timing error detector, performing carrier frequency and phase recovery on a symbol/slot signal to generate a frequency and phase recovered signal, and demodulating the frequency and phase recovered signal via a demodulation circuit to provide a digital output representative of the received on-off keyed optical signal.

Abstract: A system includes a first chiplet that includes at least one demodulator for demodulating at least one received signal from a receiver to generate hard bits and soft information from the received signal and a second chiplet coupled to exchange information with the first chiplet. The second chiplet includes at least one correlator to detect a symbol pattern indicating frame boundaries of frames having a known frame symbol period length in an acquisition state and transitioning the first and second chiplets to a connected state in response to a threshold number of successful frame boundary detections. The at least one correlator uses soft bit representations to correlate and deduce the frame boundaries in a windowed mode using the known frame length and previous frame boundary information while in the connected state and transitions the first and second chiplets out of the connected state and back to the acquisition state in response to at least one unsuccessful frame boundary detection.

Abstract: Circuit breakers comprising high voltage micro-electromechanical systems (MEMS) switches are described. A MEMS teeter-totter switch connected between two terminals of the circuit breaker can include a beam coupled to an anchor on a substrate and two control electrodes disposed on a surface of the substrate. The circuit breaker includes one or more sensors that generate sensor signals indicative of operational conditions of the MEMS teeter-totter switch. A microcontroller generates control signals to change the state of the switch based at least in part on one of the sensor signals.

Abstract: High voltage microelectromechanical systems (MEMS) switches are described. The MEMS switches can be actively opened and closed. The switch can include a beam coupled to an anchor on a substrate by one or more hinges. The switch can include control electrodes, disposed on a surface of the substrate, for electrically controlling the beam. The anchor is asymmetrically positioned with respect to the two ends of the beam and is electrically connected to a middle electrode. A stopper serves as a pivot point during actuation of the switch to reduce the mechanical stress on the hinges.

Abstract: High voltage micro-electromechanical systems (MEMS) switches are described. A MEMS teeter-totter switch can include a beam coupled to an anchor on a substrate and two control electrodes, disposed on a surface of the substrate. A control circuit may include an isolator that provides an isolated activation voltage to a voltage supply and control circuit. The voltage supply and control circuit uses the isolated activation voltage to supply a control voltage to one of the control electrodes with respect to a first reference voltage, causing the beam to provide an input voltage received from an input terminal to a contact electrode of the MEMS teeter-totter switch electrically connected to an output terminal. The input voltage is applied on the beam with respect to a second reference voltage different from the first reference voltage.

Abstract: High voltage micro-electromechanical systems (MEMS) switches are described. A MEMS teeter-totter switch can include a beam coupled to an anchor on a substrate and two control electrodes, disposed on a surface of the substrate. A control circuit may include an optical isolator that provides an isolated activation voltage to a voltage supply and control circuit. The voltage supply and control circuit uses the isolated activation voltage to supply a control voltage to one of the control electrodes with respect to a first reference voltage, causing the beam to provide an input voltage received from an input terminal to a contact electrode of the MEMS teeter-totter switch electrically connected to an output terminal. The input voltage is applied on the beam with respect to a second reference voltage different from the first reference voltage.

Abstract: High voltage micro-electromechanical systems (MEMS) switches are described. A MEMS teeter-totter switch connected between two terminals of a circuit breaker can include a beam coupled to an anchor on a substrate and two control electrodes, disposed on a surface of the substrate. An electrical overstress device connected between the two terminals in parallel with the MEMS teeter-totter switch may protect the MEMS teeter-totter switch when a high voltage transient signal is applied across the teeter-totter switch.

Abstract: An ostomy bag device includes an expandable reservoir extending from a first end to a second end and defining a space therewithin. The device also includes first and second connectors. The first connector is connected to the first end and engages an opening extending through a wall at an end of an intestine so that intestinal contents flowing from the end of the intestine are received and collected within the reservoir. The second connector is connected to the second end and engages an exit location via which contents collected within the reservoir are to be drained to an exterior of a patient body. The second connector includes a control element movable between a closed configuration, in which contents of the reservoir are prevented from 10 flowing therepast, and an open configuration, in which contents of the reservoir are permitted to flow therepast to drain the reservoir.

Abstract: An ostomy device includes a base portion and an inflatable member. The portion includes a tubular body extending from a first end to a second end. The portion is sized, shaped, and configured to be received within an opening of an abdominal wall to connect an end of an intestine to the opening of the abdominal wall to form a stoma. The member is coupled to the portion. The member defines a hole extending therethrough. The hole is configured to receive a portion of an intestine proximate the stoma therethrough. In an operative configuration, the member movable between a deflated configuration, in which the stoma is maintained in an open position, and an inflated configuration, in which the member expands to decrease a size of the hole such that a radial inward pressure is applied to a portion of the intestine received therein to close the stoma.

Abstract: An apparatus can include transceiver circuitry to receive an input signal from a target apparatus. The apparatus can further include a processing circuitry to determine position information of a source object and a target object. Based on the position information, the processing circuitry can calculate a relative velocity and determine a Doppler shift or carrier frequency offset in the input signal based on the relative velocity. The processing circuitry can adjust a local oscillator frequency based on a Doppler measured using the position information in an initial link acquisition phase. The processing circuitry can track the Doppler continuously over a range of tens of gigahertz accounting for Doppler phase ambiguities, and correct for a tracked Doppler shift by partially adjusting a local oscillator frequency and by correcting a residual Doppler shift digitally.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to medical devices and methods that include needle guards configured to shield the sharpened distal end of exchangeable biopsy needles. The biopsy needles may be used for tissue biopsy and sampling under radial ultrasound guidance.

Abstract: A clock data recovery (CDR) apparatus can include an interpolator circuitry to interpolate an input received signal and to generate an output signal removing the sampling clock offsets. The apparatus can include timing error detector (TED) circuitry coupled to process the output signal and to provide a timing error as feedback to the interpolator circuitry, the timing error being adjusted by gain factors used in at least one of an automatic gain control (AGC) circuitry and an orthogonalization circuitry. The apparatus can include loop filter (LF) circuitry to filter the timing error to remove noise effects. The apparatus can include numerically controlled oscillator (NCO) circuitry to adjust for a basepoint and fractional interval used to adjust resampling coefficients within the interpolator circuitry.

Abstract: A method for calibrating an optical transceiver. The method can include configuring optical switches to enable routing at least one output signal of modulator circuitry operably coupled to a first receive path of a coherent optical transceiver. The method can include configuring the input to at least one modulator to generate at least one first stimulus signal. The method can include configuring a path from the first receiver analog-to-digital converter to an adaptive algorithm circuitry. The method can include adapting at least one bias setting of a photodiode associated with the first receiver in response to at least one first stimulus detected at the first receiver analog-to-digital converter to an adaptive algorithm circuitry. The method can include determining an optimum value of a photodiode associated with the first receiver.

Abstract: An apparatus can include transceiver circuitry to receive an input signal from a target apparatus. The apparatus can further include a processing circuitry to determine position information of a source object and a target object. Based on the position information, the processing circuitry can calculate a relative velocity and determine a Doppler shift or carrier frequency offset in the input signal based on the relative velocity. The processing circuitry can adjust a local oscillator frequency based on a Doppler measured using the position information in an initial link acquisition phase. The processing circuitry can track the Doppler continuously over a range of tens of gigahertz accounting for Doppler phase ambiguities, and correct for a tracked Doppler shift by partially adjusting a local oscillator frequency and by correcting a residual Doppler shift digitally.

Abstract: An apparatus can include at least two circuit portions having separate power sequencer circuitry. The apparatus can further include processing circuitry configured to control at least one portion of the at least two circuit portions to operate at an initial low power level and subsequent higher power levels to full operation.

Abstract: Techniques for provisioning storage may include: initially provisioning storage for a storage group of logical devices; tagging the storage group to enable autonomous storage provisioning; receiving a plurality of parameters used in connection with performing autonomous storage provisioning for the storage group, wherein the plurality of parameters includes a first parameter denoting a threshold amount of consumed storage of the storage group, a second parameter denoting a storage capacity expansion amount by which to expand the storage capacity of the storage group, and a third parameter denoting a system-wide threshold of consumed backend non-volatile storage; determining, in accordance with the plurality of parameters, whether to expand a current storage capacity of the storage group; and responsive to determining to expand the current storage capacity of the storage group, performing first processing to automatically expand the current storage capacity of the storage group in accordance with the second pa

Abstract: Rollback snapshots are created by a storage system when host servers are retired. The rollback snapshots include a masking views and information about the storage objects associated with the host servers. Retired host servers can be recovered by using the rollback snapshots to reconstruct masking views and recreate storage objects.

Abstract: Rollback snapshots are created by a storage system when host servers are retired. The rollback snapshots include a masking views and information about the storage objects associated with the host servers. Retired host servers can be recovered by using the rollback snapshots to reconstruct masking views and recreate storage objects.

Abstract: Techniques for specifying information displayed in a graphical user interface may include: receiving a runbook definition that is a template including a primary object category, a first object category related to the primary object category, a first chart definition of metrics about the primary object category, and a second chart definition of metrics about the first object category; loading the runbook definition; applying the runbook definition to a first primary object that is an instance of the primary object category, wherein the first primary object has a first related object and the first related object is an instance of the first object category; and updating the graphical user interface to display a first chart having the first chart definition for the first primary object and to display a second chart having the second chart definition for the first related object.

Abstract: Techniques for provisioning storage may include: initially provisioning storage for a storage group of logical devices; tagging the storage group to enable autonomous storage provisioning; receiving a plurality of parameters used in connection with performing autonomous storage provisioning for the storage group, wherein the plurality of parameters includes a first parameter denoting a threshold amount of consumed storage of the storage group, a second parameter denoting a storage capacity expansion amount by which to expand the storage capacity of the storage group, and a third parameter denoting a system-wide threshold of consumed backend non-volatile storage; determining, in accordance with the plurality of parameters, whether to expand a current storage capacity of the storage group; and responsive to determining to expand the current storage capacity of the storage group, performing first processing to automatically expand the current storage capacity of the storage group in accordance with the second pa