Abstract: An administered authentication system can authenticate an artificial reality device using an authorization record between a user account and an artificial reality device. In some implementations, the authorization record is created in response to activation of a user account-specific key sent to a user-supplied contact, where an artificial reality device identifier was provided with the user-supplied contact. In other implementations, the authorization record is created in response to activation of a user account-specific key provided to the artificial reality device as a code, where activation of the key includes adding an artificial reality device identifier to a key activation message. In yet other implementations, the authorization record is created in response to an application associated with a user account activating an artificial reality device-specific key, with an artificial reality device identifier, that is provided via the artificial reality device.

Abstract: An apparatus includes memory cells connected to word lines and disposed in strings each defining a channel and coupled to bit lines and a source line. The memory cells are configured to retain a threshold voltage corresponding to data states. A control means is configured to apply programming pulses followed by verification pulses of program verify voltages associated with the data states to the word lines during a program operation. The control means ramps a selected word line voltage applied to the word lines from one of the program verify voltages to approximately zero while ramping voltages applied to the bit lines and the source line to a high supply voltage during a pre-charge operation. The control means ramps an assist voltage applied to a pre-charge assist portion of the memory apparatus to generate gate-induced drain leakage current in the strings and pre-charge the channel during the pre-charge operation.

Abstract: An assembly includes a vehicle roof and a vehicle floor spaced from the vehicle roof. The assembly includes a seat supported by the vehicle floor. The seat is rotatable about an axis of rotation from a forward-facing position to a rearward-facing position and the seat being movable along a vehicle-longitudinal axis. The assembly includes a post elongated from the vehicle floor to the vehicle roof. The post is slidable along the vehicle roof and the vehicle floor along the vehicle-longitudinal axis adjacent the seat. The assembly includes an airbag supported by the post.

Abstract: A camera assembly with two distinct magnifications is described. The camera assembly includes a lens assembly with two modules to perceive light. The first module includes two halves of different lens assemblies disposed together to provide two different optical paths and fields of view to obtain the two different optical magnifications. The second module includes a lens assembly common to the two halves of the first module. A biprism provides light separation for the two halves of the first module. Thus, light received and subjected to two different magnifications in the first module at a distal end of the camera assembly is further processed through the second module before being provided to a sensor. The biprism at the camera's distal end keeps the two different lens assemblies of the first module at the same viewing direction.

Abstract: An apparatus for wasting flocculant sludge from a clarifier is provided including a wasting pipe fluidly connectable to a waste conduit, a manifold fluidly connectable to the wasting pipe, an upper header for collecting the flocculant sludge fluidly connectable to the manifold, a return sludge pipe fluidly connectable to a return sludge well, a lower header for collecting settled sludge fluidly connectable to the return sludge pipe, and a drive mechanism for rotating the upper header and the lower header about a center axis. A wastewater treatment system is provided including the clarifier fluidly connectable to a source of a mixed liquor and the apparatus for wasting flocculant sludge. A method of separating settled sludge from a clarifier is provided including withdrawing flocculant sludge and withdrawing settled sludge. A method of retrofitting a clarifier is also provided including providing the manifold, the upper header, and the drive mechanism.

Abstract: A three dimensional non-volatile memory structure includes word lines connected to non-volatile memory cells arranged in blocks. A plurality of word line switches are connected to the word lines and one or more sources of voltage. The word line switches are arranged in groups of X word line switches such that each group of X word line switches is positioned in a line under Y blocks of non-volatile memory cells and has a length that is equal to the width of the Y blocks of non-volatile memory cells. To allow closer placement of word line switches that supply different blocks and support the possible large voltage differences between their transistors, word line switches supplying different blocks are formed over a single active region and separated by an intermediate control gate set to be off.

Abstract: A system and method and fastening tool that utilizes ultrasonic or acoustic energy and a horn that focuses the energy into the fastener at a predetermined location in order to facilitate tightening or loosening the fastener.

Abstract: A structural assembly for an electric vehicle includes a battery structure, a pair of mounting structures, lower fasteners and upper fasteners. The battery structure is configured to house power storage units. Each mounting structure is secured to a respective side of the battery structure. Each lower fastener extends through a lower portion of a respective mounting structure and a bottom portion of a respective rocker of the vehicle body. Each upper fastener extends through an upper portion of the respective rocker and a top portion of the respective mounting structure. The upper fasteners secure the battery pack and the vehicle body at an upper attachment point and the lower fasteners secure the battery pack and the vehicle body at a lower attachment point. The lower attachment point is vertically offset from the upper attachment point.

Abstract: A system and method includes determining uncertainty estimation in an object detection deep neural network (DNN) by retrieving a calibration dataset from a validation dataset that includes scores associated with all classes in an image, including a background (BG) class, determining background ground truth boxes in the calibration dataset by comparing ground truth boxes with detection boxes generated by the object detection DNN using an intersection over union (IoU) threshold, correcting for class imbalance between ground truth boxes and background ground truth boxes in a ground truth class by updating the ground truth class to include a number of background ground truth boxes based on a number of ground truth boxes in the ground truth class, estimating uncertainty of the object detection DNN based on the class imbalance correction, and updating output data sets of the object detection DNN based on the class imbalance correction.

Abstract: Aspects of the present disclosure are directed to systems for capturing, recording, and playing back steps for building objects and structures in an artificial reality (XR) world. A teacher or creator can initiate a capture context within a build mode of an XR application, during which steps (and potentially other metadata) of a building process are recorded and stored. A XR world building engine can generate an interactive replay of the recorded building process that allows another user to view the building process within an XR environment at the user's preferred pace and/or from different perspectives. In some implementations, the XR world building engine can generate a replay of the teacher's or creator's avatar performing the building process, such that the user can view the building process from a third person perspective and perform the same steps to learn how to build objects and structures in an XR world.

Abstract: A rack system for a cargo space of a commercial vehicle having a rack with at least one shelf and at least one adjusting device for adjusting the shelf about a pivot axis extending in the width direction of the rack between a loading and unloading setting and a transport setting, In order to provide a rack system that can be used more efficiently and more ergonomically, the adjusting device is designed in such a way that a tilt angle of the shelf in the transport setting is greater than in the loading and unloading setting, and a load surface of the shelf in the transport setting faces away from an access side of the rack.

Abstract: A system and device for capturing data associated with the characteristics of a golf swing through a plurality of sensors. The device is affixed to a golf club and captures data associated with the characteristics of a golf swing when the golf club is swung. The device utilizes a plurality of power states to vary the power levels provided to a plurality of sensors and computer components, as well as, communication to extend batter life of the device.

Abstract: Snares for retrieval of medical devices from the body of an animal, medical assemblies, kits, and methods of retrieving a medical device from the body of an animal are described. An example snare comprises an outer sheath defining an outer sheath lumen; an elongate member disposed in the outer sheath lumen and having a longitudinal axis and at least one elongate member lumen; a capture member disposed and axially movable within the at least one elongate member lumen, the capture member defining a capture loop having a throat region and a portion extending along a plane that is perpendicular to the longitudinal axis of the elongate member; and a threader member disposed and axially movable within the at least one elongate member lumen, the threader member defining a threader loop. A handle includes a rotatable control member for deflecting a distal end of the outer sheath.

Abstract: This disclosure is generally directed to systems and methods related to providing assistance services to a disabled vehicle. In an example embodiment, a method executed by a first processor in a vehicle may involve detecting an event that places the vehicle in a disabled condition; transmitting information associated with the event to a second processor; and detecting an arrival of a assistance vehicle that is dispatched by the second processor based on an automated evaluation of the information associated with the event. The second processor, which can be, for example, a part of a server computer, may evaluate the information in order to identify an assistance vehicle having equipment for providing the assistance service. In an example scenario, the disabled vehicle and/or the assistance vehicle can be an autonomous vehicle.

Abstract: A vehicle includes a body defining a cabin interior, a seat assembly having a seat base, a seat back and a plurality of actuators configured to adjust ergonomic positions of the seat assembly. The vehicle has a first imaging system located in the cabin interior and configured to capture first images of an upper body of an occupant seated on the seat assembly, and a second imaging system configured to capture second images of a lower body of the occupant seated on the seat assembly. A controller processes the first and second images to determine dimension data and position data of the occupant and determines an adjusted ergonomic configuration of the seating assembly, and controls the actuators to adjust the seat assembly to the adjusted ergonomic configuration.

Abstract: A vehicle-aided detection system for a vehicle is provided herein. The vehicle-aided detection system includes an end effector that is movable in an operating environment and coupled to a cargo bed via a robotic arm. A sensor system is configured to detect the end effector and at least one person in the operating environment. A controller is configured to process information received from the sensor system and to determine a physical profile of at least one person. The controller then determines whether user-worn equipment is equipped by the at least one person.

Abstract: Building infrastructure and robot coordination methods and systems are disclosed herein. An example method can include preregistering an autonomous vehicle with a building controller of a building to inform the building controller of arrival of the autonomous vehicle and a delivery request for a package, the delivery request specifying a recipient of the package, the recipient having a location in the building. The method can include determining completion of a validation routine with the autonomous vehicle, assigning a task management plan to the autonomous vehicle, the task management plan determining how the autonomous vehicle navigates through the building to deliver the package to the location, and tracking the autonomous vehicle through the building.

Abstract: A grounding assembly for a battery enclosure includes a washer including a first serrated surface and a second serrated surface opposite the first serrated surface, a fastener including a serrated surface configured to mate with the second serrated surface of the washer, and a seal disposed on the washer. The first serrated surface is configured to remove a non-conductive coating from the battery enclosure. The seal is configured to form a watertight barrier between the washer and the battery enclosure.

Abstract: The memory device includes at least one memory block with a plurality of memory cells arranged in a plurality of word lines. The memory device includes control circuitry that is configured to program the memory cells of the at least one memory block in a plurality of program loops. The control circuitry is further configured to receive a command to write user data to the memory device. On at least a portion of a selected word line of the plurality of word lines, the control circuitry is configured to perform a smart verify operation to acquire a smart verify programming voltage. After the smart verify programming voltage is acquired, in a plurality of program loops, the control circuitry is configured to program the memory cells of the selected word line to include the user data and data that corresponds to the smart verify programming voltage.

Abstract: A method of manufacturing an elastic polymer aerogel material includes dissolving tire waste in a first portion of a solvent to form a first mixture; dissolving a polymer having at least one double carbon-carbon bond in a second portion of the solvent to form a second mixture; combining the first mixture and the second mixture, wherein the tire waste reacts with the polymer having at least one double carbon-carbon bond to form a reactant gel; and undergoing a solvent exchange on the reactant gel followed by freeze drying the reactant gel to form the elastic polymer aerogel material. The tire waste includes natural rubber, synthetic polymers, steel, and curing systems, and the elastic polymer aerogel material defines a 3D porous structure.