Abstract: An exemplary modular hold-open device is configured for use with a door closer comprising a body, a pinion rotatably mounted to the body, and an armature connected with the pinion. The modular hold-open device is configured to be mounted to the door closer, to selectively prevent rotation of the pinion by exerting on the pinion a resistive torque in a door-opening direction, and to cease exerting the resistive torque in response to a door-closing torque on the pinion exceeding a threshold torque to thereby permit rotation of the pinion in the door-closing direction.

Abstract: A retrofit module configured for use with a door closer having a pinion. The retrofit module generally includes a case, an output shaft, a motor, and a control assembly. The output shaft is rotatably mounted in the case, and is configured for rotational coupling with the pinion. The motor is mounted to the case, and is operable to rotate the output shaft in a door-opening direction. The control assembly is mounted to the case, and is configured to operate the motor to drive the output shaft in the door-opening direction in response to an actuating signal.

Abstract: A system for transitioning an interaction session initiated within a metaverse to a real-world environment to complete the interaction session comprises a metaverse server in communication with an entity server. The metaverse server receives an interaction request from an avatar to initiate an interaction session with an entity within a virtual environment. The metaverse server generates an instruction token for a user instruction and a session identifier for the interaction session. The metaverse server obtains a user identity token from the entity and authorizes the avatar to interact with the entity. The metaverse server conducts the first interaction between the avatar and the entity and generates a first interaction token for the first interaction. The entity server validates the user identity token and the first interaction token from the user device in the real-world environment. The entity server conducts a second interaction with the user to complete the interaction session.

Abstract: A method for controlling wheel slip of a vehicle. The vehicle comprises at least a first and a second motion support device, MSD, for providing torque to a common wheel of the vehicle. The method comprises receiving a wheel torque request. Based on the received wheel torque request, the method further comprises controlling the first MSD to provide torque to the wheel in a first mode of operation, and controlling the second MSD to provide torque to the wheel in a second mode of operation which is different from the first mode of operation. The controlling of the first MSD and the controlling of the second MSD are, at least temporarily, performed simultaneously.

Abstract: Techniques for efficiently using a display area of a hardware display for a user interface are provided herein. Data items are displayed on the user interface at varying sizes based on a focal parameter value, such as a focal time. When the focal parameter value changes due to a scroll input or other input, the size and position of the data items is adjusted based on the updated focal parameter value such that a user is able to scroll through the data items in a non-linear fashion.

Abstract: Disclosed are examples of accountable decentralized anonymous payment systems and methods. One such method comprises storing, in a digital wallet, a digital coin that has been signed by a bank computing device; rerandomizing the digital coin and a coin signature to produce a new version of the digital coin that is anonymous with respect to an owner of the digital coin; sending the new version of the digital coin to a recipient computing device; computing a nullifier for the new version of the digital coin using a pseuodorandom function over a serial number of the digital coin; sending the nullifier for the new version of the digital coin to the bank computing device; and providing the bank computing device a zero knowledge proof that a value of the nullifier for the new version of the digital coin is correct and is the same as a nullifier of the digital coin.

Abstract: A method including extracting queries from historical search query data. The method also can include spellchecking each of the queries (i) using a first spellcheck model and (ii) using a second spellcheck model. A latency of the first spellcheck model is lower than a latency of the second spellcheck model, and an overall accuracy of the second spellcheck model is higher than an overall accuracy of the first spellcheck model. The method additionally can include determining first queries of the queries in which, for each of the first queries, a first respective spellcheck output from the first spellcheck model is different from a second respective spellcheck output from the second spellcheck model. The method further can include adding at least a portion of the first queries to a spellcheck cache for runtime spellchecking. Other embodiments are described.

Abstract: A method (1300) and system (201) for generating an astro-lapse video on a user device is disclosed. Initially, at least one current frame comprising one or more stars, is captured via the user device. Further, region(s) with a degree of exposure and focus greater or less than a predefined threshold are determined and a set of subsequent frames including the stars are captured. The exposure and focus of region(s) in the subsequent frames is corrected during the capturing based on degree of exposure and focus of the region(s) within the current frame. Further, fusion weights of the current and subsequent frames are determined based on one or more cloud categories and associated cloud density scores. Finally, an astro-lapse video is generated by fusing the at least one current frame and the set of subsequent frames based on the determined fusion weights.

Abstract: A data collection device and method for determining a backflow condition in a water distribution system. The data collection device receives a first data communication from a first node, the first data communication indicating a first possible backflow condition at the first node. The data collection device receives additional data communications from one or more second nodes, the additional data communications indicating backflow conditions at the second nodes. The data collection device aggregates and analyzes the first data value and the additional data values and determines that an actual backflow condition exists based on the aggregated data values and a known relationship between the first node and the second nodes. The data collection device may then perform action(s) in response to determining the backflow condition, such as reporting the backflow condition, requesting updated reporting from the nodes, closing appropriate valves, initiating pumps to increase water pressure, flushing the system, etc.

Abstract: Systems and techniques are described herein for enabling a multi-user extended reality (XR) experience. In one illustrative example, a user device can receive, associated with a user from a host device, a message comprising a prompt to join an XR room hosted by the host device. The user device can connect to the host device based on the message. The user device can can obtain images of a three-dimensional (3D) scene of a physical environment and can transmit the images to the host device. The user device can receive synthetic content from the host device. A virtual representation of the user can be localized with respect to the XR room based on features in the images matched with features of the 3D scene of the physical environment. The user device can render the synthetic content for the XR room based on a pose of the apparatus.

Abstract: Systems, methods, and computer readable media for a service manger to manage services on a wearable device are disclosed. The service manager remains active in memory and listens for requests for services. The service manager then determines which services to run and which to stop to respond to the requests for services. After running a service, the service manager calls the service to respond to the request and sends a response to the request to the sender of the request. The service manager may be resident on a different processor than a processor from which the requests for services originate. The service manager maintains priorities of the services to determine which services to stop or remove from memory.

Abstract: An accessory dock is described, the accessory dock for docking wireless accessories that are configured to be used with a medical device. The accessory dock has at least one docking receptacle configured to receive a wireless accessory. In some examples, the wireless accessory receives power from the medical device upon being positioned within a threshold distance of the medical device to charge a battery of the wireless accessory. In some examples, the wireless accessory pairs with the medical device upon being positioned within a threshold distance of the medical device. In some examples, a processor of the medical device causes performance of an accessory health check upon the wireless accessory being docked in the docking receptacle, the accessory health check for determining a readiness of the wireless accessory.

Abstract: Systems and techniques are described for performing scalable voxel block selection. For example, a computing device can determine a fixed block configuration based on a storage size limitation. The computing device can select a plurality of blocks of the scene based on the fixed block configuration. The computing device can convert indices of the plurality of blocks associated with the fixed block configuration to indices of a plurality of blocks associated with a particular block configuration (of a plurality of block configurations) that corresponds to a particular 3DR application. The particular block configuration is different from the fixed block configuration.

Abstract: An exemplary clutch mechanism includes a casing, first and second hubs rotatably mounted to the casing, an electrically-actuated drive assembly mounted within the casing, and a clutching lug movably mounted within the casing. The lug has an engaged position in which the lug couples the hubs for joint rotation and a disengaged position in which the hubs are rotationally decoupled. The drive assembly is operable to drive the lug between the engaged and disengaged positions to couple and decouple the hubs. The clutch mechanism is modular and self-contained within the casing such that the mechanism can be installed to each of a plurality of different lockset products without opening the casing.

Abstract: A method for controlling motion of a heavy-duty vehicle includes obtaining input data related to one or more tire parameters of a tire on the heavy-duty vehicle, estimating at least part of the one or more tire parameters based on the input data, configuring a tire model, wherein the tire model defines a relationship between tire wheel rolling resistance and vehicle motion state, wherein the tire model is parameterized by the one or more tire parameters, estimating vehicle motion state, and controlling motion of the heavy-duty vehicle based on the tire model and on the vehicle motion state.

Abstract: An application management platform comprising at least a packaging and bundling component, a deployment management component, and an update component. The packaging and bundling component versions, packages, and bundles a plurality of infrastructure components for a remote data center. The deployment management component provisions one or more nodes of the remote data center with the plurality of infrastructure components for an application. The update component monitors available updates to one or more of the plurality of infrastructure components used by the remote data center and facilitates update of the one or more of the plurality of infrastructure components at the remote data center.

Abstract: A vehicle includes a driver door sensor, a plurality of transceivers, a display, and one or more controllers. The one or more controllers, responsive to data from the driver door sensor indicating a corresponding driver door is absent from the vehicle, command the transceivers to each output a radio frequency signal to determine if a fob is present in the vehicle.

Abstract: A method for controlling motion of a heavy-duty vehicle, the method including: obtaining input data related to one or more parameters of a tire on the heavy-duty vehicle, determining at least part of the one or more tire parameters based on the input data, configuring a tire model, wherein the tire model defines a relationship between wheel slip and generated wheel force, wherein the tire model is parameterized by the one or more tire parameters, and controlling the motion of the heavy-duty vehicle based on the relationship between wheel slip and generated wheel force.

Abstract: An exemplary indicator mechanism is configured for use with a door closer including a body and an adjustment screw. The indicator mechanism generally includes an indicator, at least one indicium, and a cycloidal drive. The cycloidal drive is configured to selectively align the indicator and the at least one indicium in response to rotation of the adjustment screw to thereby indicate an operating characteristic of the door closer.

Abstract: An example server includes a memory configured to store sensor data from a plurality of sensors in a facility; a communications interface; and a processor interconnected with the memory and the communications interface, the processor configured to: in response to receiving, via the communications interface, an event indicator from a source sensor of a client device: identify a subset of the plurality of sensors based on the event indicator; retrieve and correlate the sensor data from the identified subset of the plurality of sensors in the facility; detect a candidate event associated with a user of the client device from the correlated sensor data; and when the candidate event is detected, send an event notification to the client device.