Abstract: Techniques are provided for implementing and using a travelling wave resonator. comprising planar optical waveguide including at least two stacked cores, to diminish Kerr effect in the travelling wave resonator. The travelling wave resonator may be used in a resonator optical gyroscope.

Abstract: Systems and methods for tracking the position of a head-mounted display (HMD) system component. The HMD component may carry a plurality of angle sensitive detectors that are able to detect the angle of light emitted from a light source. The HMD component may include one or more scatter detectors that detect whether light has been scattered or reflected, so such light can be ignored. Control circuitry causes light sources to emit light according a specified pattern, and receives sensor data from the plurality of angle sensitive detectors. The processor may process the sensor data and scatter detector data, for example using machine learning or other techniques, to track a position of the HMD component. An angle sensitive detector may include a spatially-varying polarizer having a position-varying polarizing pattern and one or more polarizer layers that together are operative to detect the angle of impinging light.

Abstract: In a method of applying a weld to a target surface, a guide rail arrangement is attached to the target, the guide rail arrangement including at least one guide rail. A weld head carriage having a carriage housing, a rail follower assembly, and a sonotrode is movably mounted to the guide rail arrangement so that the follower assembly engages each guide rail for movement there-along. The weld head carriage is positioned adjacent the target surface, feedstock material is deposited onto the target surface, and the sonotrode is extended to engage the deposited feedstock material and apply a welding force to the feedstock material and the target. Relative movement between the carriage and the guide rail arrangement is initiated and ultrasonic vibrations are conducted into the feedstock material and the target, thereby welding the feedstock material to the target surface.

Abstract: Systems and methods for processing electronic imaging data obtained from medical imaging procedures, with use of trained artificial intelligence (AI) models, are disclosed herein. In an example, a use of a medical evaluation workflow involving an AI model includes: obtaining image data and non-image data associated with a medical imaging study; using at least one AI model to analyze the image data, with the trained AI model being validated with a defined governance standard to identify a characteristic or particular type of characteristic; identifying the characteristic with the AI model; and communicating the identified characteristic to a location associated with evaluation of the medical imaging study.

Abstract: A foundation for a bed system can include a foundation structure having a head, a foot, a first side, and a second side. An air pump configured for supplying air to and inflating at least one mattress air chamber can be housed within the foundation structure proximate the foot of the foundation structure. A control box and a central power hub can be housed within the foundation structure. The central power hub can be electrically connected to and configured to deliver electrical power to each of the air pump, the control box, and one or more additional electrical components. The foundation can optionally integrate other components into the foundation.

Abstract: A waste disposal system with a waste receiver for receiving pharmaceutical waste material. A locking assembly is secured to a fixed surface and actuated from a locked configuration to an unlocked configuration. A lock cylinder of the locking assembly may extend forward of a front wall of a receiver body of the waste receiver to engage a locking feature of the cover in the locked configuration. A cover retention feature may prevent axial decoupling of the cover from the receiver body. The receiver body may be formed from two shells. A reaction agent is positioned within the container volume and spaced apart from a bottom wall of the receiver body. The reaction agent may be positioned within the container volume between the lock passageway and/or a solid receiver volume, and opposing sidewalls of the receiver body. A support may maintain the position of the reaction agent within the container volume.

Abstract: Compression garment systems may include a trunk garment and a leg garment to be positioned about a trunk and leg of a body to provide compression therapy thereto. The trunk garment and the garment may include a plurality of controllable pressure applying regions to move lymph from the leg and trunk.

Abstract: An adapter device and/or a thermostat device for use during installation and testing of in-floor heating systems. The adapter device allows for temporary electrical interconnection between a mat and an AC power source, and includes at least one switch configured to actuate based on a user-supplied force (e.g., a finger press) to temporarily electrically couple the mat to an AC power source. The at least one switch is further configured to automatically de-actuate in the absence of the user-supplied force to electrically decouple the mat from the AC power source. The thermostat device includes at least one integrated power measurement circuit for testing and diagnostics of an in-floor heating system.

Abstract: Purifying target biomolecules, such as nucleic acids or proteins, from a biological source is a time intensive process and is typically performed by a skilled technician or scientist owing to the highly technical nature of the work. Systems, devices, and methods disclosed herein enable the automated bioprocessing and purification of target biomolecules from a biological source. For example, an instrument and disposable cartridge are provided for automatedly isolating and purifying nucleic acids (such as plasmid DNA from a bacterial culture) or for isolating protein from any biological sample. Such an exemplary instrument and cartridge can work in concert to timely release, mix, and move the target biomolecule and various reagents and buffers through a target biomolecule purification process, resulting in a purified target biomolecule with less manual oversight than traditional approaches.

Abstract: Systems and techniques are provided for booting an electronic device. For example, a process can include initiating a boot procedure for the electronic device. The process can also include determining a hardware pseudo-random number generator (PRNG) is inoperable, obtaining a seed value from a read-only memory, based on the determination that the hardware PRNG is inoperable, initiating a software PRNG based on the seed value, obtaining a pseudo-random number from the software PRNG, and continuing the boot procedure using the obtained pseudo-random number.

Abstract: A passive, modulating flow control valve including a poppet having a precisely designed and constant unbalanced area. A spring rate is selected to achieve the desired poppet travel over the desired range of differential pressure. Preferably, the spring preload is selected such that the poppet will remain fully open until a specified minimum differential pressure is reached. The unbalanced area and spring force allow the poppet to reposition proportional to the differential pressure throughout the design range of differential pressure. An array of radial holes in the poppet are used to define the trim characteristics. As the poppet is pushed closed by the differential pressure, few radial holes remain uncovered, which increases the flow resistance. The single modulating poppet includes flow and trim characteristics that respond directly to differential pressure acting on it to achieve tight control of the mass flow rate.

Abstract: An architecture for assessing and identifying fraudulent contact with client contact systems, such as IVR, includes threshold and machine learning scoring and filtering of calls based on these criteria. The criteria may include behavioral, situational and reputational scoring.

Abstract: A content selector switch selects, based on a received request for content from a particular remote control device, a multicast network on which to provide the requested particular content. Each multicast network channel of the plurality of multicast network channels is mapped to a respective video channel and each remote control device in the facility (e.g., hotel) is mapped to a respective video channel that the TV controlled by the remote control device stays tuned to. The content selector switch performs the selection by identifying which remote control device in the facility sent the request and selecting the multicast network channel that is mapped to the RF video channel the identified remote control device is mapped to. The content selector switch then provides the specific content on the selected multicast network channel to a multicast-to-channel output device that provides the content on the RF video channel for the TV tuned to that RF video channel to display.

Abstract: An Unmanned Aerial System configured to receive a request from a user and fulfill that request using an Unmanned Aerial Vehicle. The Unmanned Aerial System selects a distribution center that is within range of the user, and deploys a suitable Unmanned Aerial Vehicle to fulfill the request from that distribution center. The Unmanned Aerial System is configured to provide real-time information about the flight route to the Unmanned Aerial Vehicle during its flight, and the Unmanned Aerial Vehicle is configured to dynamically update its mission based on information received from the Unmanned Aerial System.

Abstract: Methods and systems for managing a premises are described. A premises or devices at a premises may be associated with one or more premises zones. The one or more premises zones may be associated with corresponding content. If data is received from a device associated with a particular premises zone, then the content may be output. The content may be used to notify a user of an event, state change, or other indication associated with the particular premises zone.

Abstract: A device configured to surround a portion of a foot-receiving cavity at a heel region of an article of footwear comprises a control bar having a center segment, a first side arm extending from the center segment, and a second side arm spaced from the first side arm and extending from the center segment. The control bar may include a series of slats. A base supports the control bar and is connected to the first side arm and the second side arm. The control bar is biased to an unstressed position with the center segment a first distance from the base, and elastically bends under an applied force to a loaded position with the center segment a second distance from the base less than the first distance. The device stores potential energy that returns the control bar to the unloaded position upon removal of the applied load.

Abstract: A device configured to surround a portion of a foot-receiving cavity at a heel region of an article of footwear comprises a control bar having a center segment, a first side arm extending from the center segment, and a second side arm spaced from the first side arm and extending from the center segment. The control bar may include a series of slats. A base supports the control bar and is connected to the first side arm and the second side arm. The control bar is biased to an unstressed position with the center segment a first distance from the base, and elastically bends under an applied force to a loaded position with the center segment a second distance from the base less than the first distance. The device stores potential energy that returns the control bar to the unloaded position upon removal of the applied load.

Abstract: A thread-wrapping device for a percussion mallet is disclosed. The thread-wrapping device includes a frame, a spindle, and a wrapping arm. The spindle is designed to retain the percussion mallet and is rotatably supported by the frame. The wrapping arm is supported by the frame and designed to rotate when the spindle rotates to wrap thread around a head of the percussion mallet. Further, a hand crank is provided to rotate the spindle and wrapping arm.