Abstract: A method of selectively connecting mobile devices to 4G and/or 5G networks includes preparing a plurality of isolated 4G and/or 5G networks configured to define a network federation and each having a Radio Access Network (RAN), a PDN Gateway node or a User Plane Function (UPF), and an application server; preparing a plurality of mobile devices; connecting the mobile devices to the networks to exchange data traffic with the application server via, at least, the RAN and the PDN Gateway or UPF node; preparing a connectivity network configured to selectively connect the networks to each other; selecting one reference PDN Gateway or UPF node associated with a network of the federation; and migrating the data traffic associated with all the mobile devices connected to the networks other than the reference network to the application server associated with the reference network that includes the previously selected PDN Gateway or UPF node.

Abstract: Examples of performing an out-of-band firmware update of a server computing device are described. In an example, a first disk image is mounted onto a server computing device. The first disk image comprises a bootable firmware and is mounted in response to a mount command received through an out-of-band communication service. In another example, a second disk image is also mounted onto the server computing device. The second disk image is also mounted in response to another mount command received through the out-of-band communication service and is to provide a read-writable container, when mounted. Thereafter, a booting process of the server computing device may be initiated based on mounted first image to update the firmware of the server computing device. Information related to the update of the firmware is store in the read-writable container.

Abstract: In some examples, an electronic device includes a component comprising information, a secure storage, and a controller to generate a digital signature based on the information of the component, and detect a modification of the component based on the digital signature. The controller can also detect a receipt of an invalid credential, and log, to the secure storage, an indication of the modification of the component and an indication of the receipt of the invalid credential.

Abstract: A circuit board cooling apparatus is disclosed having a heat spreader device to be thermally coupled with a surface of the circuit board to be cooled. Also, a conforming heat transfer device is disclosed that is thermally and physically coupled with the heat spreader device to conform to a surface contour of the heat spreader device on a first side of the heat transfer device. The cooling apparatus also includes a heat transport device physically attached and thermally coupled with a second side of the heat transfer device.

Abstract: Computer-implemented methods, systems, apparatus, and computer-readable media (transitory or non-transitory) are described herein for detecting eye tracking calibration errors. In various examples, respective poses of first and second eyes of a wearer of a head-mounted display (“HMD”) may be determined. A portion of a first image rendered on a first display of the HMD may be selected based on the pose of the first eye of the wearer. The selected portion of the first image may be matched to a portion of a second image rendered on a second display of the HMD. An eye tracking calibration error may be determined based on the pose of the second eye of the wearer and a location of the portion of the second image.

Abstract: In one example in accordance with the present disclosure, a system is described. The system includes a reader to 1) read an identifier from a three-dimensional (3D) System printed object that includes a storage element and 2) read a location of the 3D printed object within a build material bed. An extractor of the system extracts, based on the identifier, a post processing operation to execute on the 3D printed object. A controller of the system controls a post processing operation based on extracted post processing operation information and the location.

Abstract: A print apparatus calibration method is disclosed. The method comprises printing, from each of a plurality of dies of a print head onto a printable substrate, an image in a first color according to a calibration pattern and an image in a second color according to the calibration pattern, the calibration pattern comprising a plurality of patches having a plurality of different densities. The method may comprise scanning, using a scanning unit, the images formed on the printable substrate to generate scanned image data, wherein the images in the first color are scanned by a first scanning module of the scanning unit and the images in the second color are scanned by a second scanning module of the scanning unit. The method may comprise analyzing, using processing apparatus, the scanned image data to identify any differences between printed densities of corresponding patches in different images of the same color. The method may comprise performing a calibration based on the analysis.

Abstract: A fusing apparatus includes: a pressing roller to be axially rotated; a fusing belt to rotate by receiving a rotational force from the pressing roller; a pressing member to press toward the pressing roller from the inside of the fusing belt to form a nip in which the printing paper is nipped between the fusing belt and the pressing roller; on the fusing belt or the pressing member, a sliding layer to reduce friction between the fusing belt and the pressing member; and an adhesive layer to adhere the sliding layer to the fusing belt or the pressing member.

Abstract: A method of custom print mode generation in a three-dimensional (3D) printing device may include printing a plurality of parts with a plurality of 3D printing devices, the parts each being printed using different process parameters, and capturing a plurality of images of the parts. The method may also include, with an image analysis module, analyzing the images to classify the parts into a plurality of defect gradings, and adjusting a number of the process parameters based on characteristics of the parts identified by a user as undesirable. The examiner may also include, with a recommending module, creating a custom print mode based on the parts defect gradings and adjusted process parameters.

Abstract: According to an example, a method for determining an ergonomic layout for a plurality of secondary devices comprises detecting the plurality of secondary devices, determining characterizing data for each of the detected secondary devices, the characterizing data comprising a type of secondary device and a location of a secondary device with respect to a primary device, determining a workspace layout based on the determined location, determining an ergonomic layout in which the primary device and the plurality of secondary devices are distributed in accordance with the type of secondary device, comparing the ergonomic layout to the workspace layout, and determining a set of changes for the plurality of secondary devices based on the comparison.

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes an interface, a digital circuit, an analog circuit, and control logic. The digital circuit outputs a digital signal to the interface. The analog circuit outputs an analog signal to the interface. The control logic activates the digital circuit or the analog circuit.

Abstract: Systems and methods described herein allow a configurable policy for managing Power over Ethernet (PoE) to be implemented by Power Sourcing Equipments (PSEs) across a network. The policy specifies a set of rules for prioritizing power distribution over Ethernet for the computer network. When Powered Devices (PDs) are connected via Ethernet cables to the PSEs, the PDs send identification information about themselves (e.g., device type and location) to the PSEs. The PSEs assign priority levels to the PDs by electronically comparing the identification information to the set of rules. When a present level of available power is insufficient to power all the PDs via PoE, the PSEs use the priority levels to determine which PDs to power down.

Abstract: A fluid ejection device includes a plurality of fluid actuation devices, a plurality of memory cells, and a configuration register. Each memory cell of the plurality of memory cells corresponds to a fluid actuation device of the plurality of fluid actuation devices. The configuration register stores data to enable or disable access to the plurality of memory cells.

Abstract: An example device comprises a media path, a drying system, and a controller. The media path is divided into a plurality of distinct drying zones. The drying system includes a plurality of directionalities with relation to the plurality of distinct drying zones. And the controller is to select a directionality of the plurality of directionalities based on parameters of a print job.

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of first data lines, a second data line, a first memory element, and a second memory element. The first memory element is enabled in response to first data on the plurality of first data lines. The second memory element is enabled in response to second data on the second data line.

Abstract: An example of a device (100) may include a valve body (108). The device may include a printing substance transfer window (122) through the valve body (108). The device (100) may include a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a first orientation with an orifice of the printing substance dispensing nozzle (110) facing an internal face of the valve body (108) and a second orientation with the orifice (126) of the printing substance dispensing nozzle (110) facing the printing substance transfer window (122). The device (100) may include a dispensing-side gasket material (132) slideable against the internal face of the valve body (108) when rotating the printing substance dispensing nozzle (110) between the first orientation and the second orientation.

Abstract: Examples of methods for object manufacturing visualization by an electronic device are described herein. In some examples, a predicted thermal image of additive manufacturing is determined using a machine learning model. In some examples, a captured thermal image is obtained. In some examples, a graphical overlay of the predicted thermal image with the captured thermal image is presented.

Abstract: An example printhead includes a circulation channel having an inlet for receiving a fluid and an outlet for expelling the fluid, a first nozzle fluidically coupled to the circulation channel, the first nozzle being operable at a first absolute pressure, and a second nozzle fluidically coupled to the circulation channel, the second nozzle being operable at a second absolute pressure, the absolute second pressure being lower than the first absolute pressure. The absolute pressure in the circulation channel decreases as the fluid flows from the inlet to the outlet, and the first nozzle is positioned closer to the inlet of the circulation channel than the second nozzle.

Abstract: A fluid-ejection element of a fluid-ejection device includes a chamber layer having a pair of chambers fluidically disconnected from one another within the chamber layer. The fluid-ejection element includes a tophat layer over the chamber layer and fluidically connecting the chambers to define a fluid recirculation path between the chambers. The fluid-ejection element includes a nozzle common to both the chambers.

Abstract: Examples of methods for thermal mapping by an electronic device are described herein. In some examples, a map is obtained. In some examples, a first thermal image at a first resolution is obtained. In some examples, a neural network is used to determine a second thermal image at a second resolution based on the map and the first thermal image. The second resolution is greater than the first resolution in some examples.

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes an ID line, a fire line, a discharge path, a memory element, and a latch. The memory element is electrically coupled to the fire line and the discharge path. The latch disables the discharge path in response to a first logic level on the ID line and enables the discharge path in response to a second logic level on the ID line.

Abstract: An example computing device includes a hinge, a first housing, a first display device disposed in the first housing, second housing rotatably coupled to the first housing via the hinge, a second display device disposed in the second housing, and a connector coupled to the hinge and the second display device. As an example, in response to a rotation of the first housing relative to the second housing, a first end of the second display device is to slide along a surface of the second housing and a second end of the second display device is to slide along a surface of the first housing.

Abstract: Systems and methods are provided for efficiently routing data through a network having a plurality of switches configured in a fat-tree topology, including: receiving a data transmission comprising a plurality of packets at an edge port of the network, and routing the data transmission through the network with routing decisions based upon a routing table, wherein the routing table includes entries to effect routing decisions based upon a destination based hash function.

Abstract: A computing device is described that includes a display assembly, a base assembly, and a main hinge to enable the display assembly to be closed against the base assembly, and to enable the display assembly to be opened apart from the base assembly. The display assembly includes a main display portion that overlaps the base assembly when the display assembly is closed against the base assembly and a peripheral display portion that extends past an edge of the base assembly. The computing device includes a display folding assembly to bend the peripheral display portion into a concealed position in response to the display assembly being closed against the base assembly, and to deploy the peripheral display portion into a viewable position in response to the display assembly being opened apart from the base assembly.

Abstract: In an example implementation consistent with the features disclosed herein, network devices of a physical network are bucketized for automatic configuration based on statistical analysis of the quantity of network links for the network devices. The quantity of network links for each of the network devices is identified. A bucketing factor for the network devices is computed. The bucketing factor equals a sum of a mean and a confidence interval value for the quantity of network links for the network devices. A persona for a provisioned network device is recommend based on the bucketing factor. The persona is assigned to the provisioned network device. A network device configuration is applied to the provisioned network device based on the persona assigned to the provisioned network device. A virtual network may be created on the physical network.

Abstract: The present specification describes examples of position-based switching of display devices. An example augmented reality (AR) device includes an AR display device to render display data. The example AR device also includes a wireless communication device to transmit and receive wireless signals. The example AR device further includes a processor to: 1) determine a position of the AR device relative to a computing device based on wireless signals communicated with the computing device; and 2) switch an activity state of the AR display device based on the determined position of the AR device relative to the computing device.

Abstract: In an example in accordance with the present disclosure, an extended reality system is described. The extended reality system includes an imaging system to present virtual objects to a user. The extended reality system also includes a machine vision tracking system. The machine vision tracking system includes a camera to capture images of a user's hand a tool grasped in the user's hand. The machine vision tracking system also includes a processor. The processor 1) tracks a position and orientation of the user's hand in physical space, 2) identifies the tool grasped in the user's hand, and 3) tracks a position and orientation of the tool in physical space. The extended reality system also includes an XR controller to manipulate the XR environment based on the position and orientation of the tool and the position and orientation of the hand.

Abstract: A metered volume microfluidic device can include fluid flow microfluidics. The fluid flow microfluidics can include an inflow channel, a metered volume chamber positioned to receive working fluid from the inflow channel, a metered volume outflow channel positioned to receive and direct a metered volume of the working fluid when discharged from the metered volume chamber, and a capillary check valve. The capillary check valve can allow excess working fluid to exit the metered volume chamber when filling the metered volume chamber via the inflow channel. The capillary check valve can also prevent excess working fluid that has passed there through from being reintroduced into the metered volume chamber when the working fluid is discharged into the metered volume outflow channel.

Abstract: A method of operating a device to receive a print medium is disclosed. Rotation of a receiving device to receive a print medium is detected, whereby the rotation is caused by an external force. An assisting force is applied to further rotate the receiving device in response to the detected rotation.

Abstract: An optical sensor device (10) includes an application module (12) for applying an irregular pattern of marks to a surface of a medium and an optical detector module (14). The optical detector module (14) acquires images of the applied marks and may determine an advancement speed of the medium based on the acquired images.

Abstract: A build material conveyor is disclosed. Such conveyor comprising an auger to transport build material in a substantially vertical direction wherein the conveyor further comprises a set of wall elements selectively positioned to, in a first position occupy part of the volume of the auger.

Abstract: Example implementations relate to a printer comprising at least one printhead, carried by a carriage, to print onto a substrate, a surface to support the substrate; the surface comprising a plurality of platens associated with an elongate member; each platen having an upper planar surface forming part of the surface for supporting the medium and being adjustable to vary a characteristic of the upper planar surface to influence a distance between the upper planar surface and the at least one printhead.

Abstract: In an example, a method includes operating, by a processor, on object model data and operating, on a processor, on pattern data. The object model data describes at least part of an object to be generated in additive manufacturing and the pattern data describes an object pattern intended to be formed on at least a portion of the part of the object to be generated in additive manufacturing. The method includes determining, by a processor, control data to control a print agent applicator to apply a pattern of fusing agent onto a part of a layer of build material. The pattern of fusing agent comprises a fusing agent area and a gap area that lacks fusing agent. The gap area corresponds to the object pattern such that no fusing agent is applied to a part of the layer of build material that corresponds to the object pattern.

Abstract: Examples of methods for object deformation determination are described herein. In some examples, a method includes aligning a first bounding box of a three-dimensional (3D) object model with a second bounding box of a scan. In some examples, the method includes determining a deformation between the 3D object model and the scan based on the alignment.

Abstract: Secure circuitry detects a latency between when an interrupt occurred and when the interrupt was released in correspondence with handling of the interrupt. The secure circuitry detects an interval between consecutive occurrences of the interrupt. In response to either or both of the latency exceeding a latency limit and the interval exceeding an interval limit, the secure circuitry performs an action.

Abstract: An image forming apparatus is provided. The image forming apparatus includes a print engine to perform an image forming job, a motor to drive the print engine, a driving circuit, to supply a power to the motor, and including a sensor to sense an amount of current of the power supplied to the motor, and a processor to analyze a frequency component of the current supplied to the motor by using the amount of current sensed by the sensor for a predetermined time, and to determine an occurrence of a jam based on the analyzed frequency component.

Abstract: In some examples, a non-transitory computer-readable medium stores machine-readable instructions which, when executed by a processor, cause the processor to cause a playback device to produce a sound using an audio file; cause a recording device to record the sound; compare the audio file to the recorded sound; determine, based on the comparison, whether the recorded sound comprises a noise not present in the audio file; and cause, based on the determination, a second recording device to be selected, a multiplexer to select a second playback device, or a combination thereof.

Abstract: One aspect provides a method and system for saturation of multiple I/O slots by multiple testing ports and verification of link health in between. During operation, the system detects a testing card with a plurality of test ports which are coupled to a plurality of input/output (I/O) slots of a computing device. The system communicates with the plurality of test ports via the plurality of I/O slots. The system generates, by the computing device, a script for each test port, wherein the script comprises a series of read and write operations to be executed by the testing card on a memory device associated with the computing device. The system allows the plurality of test ports to execute the script and perform the corresponding read operations and write operations, thereby facilitating testing of the I/O slots of the computing device in parallel by the test ports of the single testing card.

Abstract: The image forming apparatus may include a main body and a cassette to enter or exit the main body along a first direction to be mounted in or released from the main body, respectively. The cassette may include a supporter extendable in a second direction perpendicular to the first direction to protrude from an exterior of the main body. The main body may include a lever which is movable in the first direction between a supporting position at which the lever supports the main body and a release position at which to allow the cassette to enter or exit the main body along the first direction.

Abstract: In one example in accordance with the present disclosure, a headset is described. The headset includes a sensory input device and a pad surrounding the sensory input device. The pad includes a thermo-electric cooling (TEC) device having a first side and a second side. The first side is to cool and the second side is to heat when a voltage is applied to the TEC device. The pad also includes a cooling layer in contact with the first side of the TEC device and a heat spreading layer in contact with the second side of the TEC device. The pad also includes an enclosing material enveloping the pad.

Abstract: In some examples, a distributed computer system includes a plurality of computer nodes, where the plurality of computer nodes include respective programs to cooperate to perform a workload. A first computer node includes a communication proxy between the program of the first computer node and a communication library that supports communications between the program of the first computer node and the programs of other computer nodes of the plurality of computer nodes, and a fault management service to monitor a health of the other computer nodes, and in response to a detection of a fault of a second computer node of the plurality of computer nodes, relaunch the communication proxy. The relaunched communication proxy selects, from a plurality of states, a common state to which the programs are to roll back.

Abstract: A method for controlling a printer includes receiving a set of first variables for the printer, determining, using a machine-learning program, one or more second variables based on the set of first variables, and controlling a printer to perform a print job based on the set of first variables and the one or more second variables. The first and second variables may correspond to different types of printer settings. The machine-learning program may determine the second variables using a classifier model that may prevent partial curing or drying, print media deformation and/or other defects.

Abstract: In an example, a speaker device may include a first transducer and a second transducer. The first transducer may include a first diaphragm, a first magnetic circuit, and a first voice coil disposed in a magnetic gap of the first magnetic circuit to cause vibration of the first diaphragm. The second transducer may include a second diaphragm, a second magnet circuit, and a second voice coil disposed in a magnetic gap of the second magnetic circuit to cause vibration of the second diaphragm. Further, the speaker device may include a magnetic plate having a first surface coupled to the first transducer and a second surface coupled to the second transducer. The first surface is opposite to the second surface.

Abstract: A method includes accessing an input representing a software component list for a software product. The software component list contains information for a given software component. The method includes accessing a knowledge base to determine security level parameters and trust parameters for the given software component based on the information. A security level of the given software component is determined based on an evaluation of the security level parameters. A trust of a source of the given software component is determined based on an evaluation of the trust parameters. The method includes determining a security context of the software product. Based on the security level, the trust and the security context, the method includes providing a recommendation for the given software component.

Abstract: Methods and systems are provided for performing lossy dropping and ECN marking in a flow-based network. The system can maintain state information of individual packet flows, which can be set up or released dynamically based on injected data. Each flow can be provided with a flow-specific input queue upon arriving at a switch. Packets of a respective flow are acknowledged after reaching the egress point of the network, and the acknowledgement packets are sent back to the ingress point of the flow along the same data path. As a result, each switch can obtain state information of each flow and perform per-flow packet dropping and ECN marking.

Abstract: A distributed policy management (PM) system (e.g., system for authentication, authorization, and accounting (AAA) activities on a network) is provided. Nodes of the PM system may share information of the PM system using a distributed data store (e.g., a multi-master cache). Each node of the distributed PM system may further share information from the distributed data store with other nodes of a corporate infrastructure network by augmenting information in a remote authentication dial-in user service (RADIUS) protocol message. Nodes that are involved in policy management (e.g., network authentication server (NAS) or firewall) without access to the distributed data store may receive information via augmented RADIUS messages. In this manner, devices may be interfaced to the distributed PM system without having access to the distributed data store. High availability and load balancing implementations may be provided by leveraging the distributed data store across nodes of the PM system.

Abstract: Examples described herein relate to configuration of access points including Internet-of-Things (IoT) radio. An access point identifier list is received from a network administration node in a network. Each access point identifier in the access point identifier list is uniquely associated with an access point, which includes an IoT radio. A first rules list is received from the network administration node. Each rule in the first rules list indicates a constraint and access point configuration values. An objective function is used to identify access point identifiers satisfying one or more of the constraints in the rules. The access points associated with the identified access point identifiers are configured with the access point configuration values as indicated in the rules.

Abstract: Systems and methods are provided for receiving a set of feature vectors. Each feature vector in the set may comprise feature values for a plurality of features associated with network communications. A first score for a first subset of the feature vectors that have at least one common feature value for a first feature of the plurality of features may be determined. A second score for a second subset of the feature vectors may be determined. The second subset may comprise the first subset and other feature vectors that have a different feature value for the first feature. Based on a change between the first score and the second score, whether to group the common feature value and the different feature value together may be determined.

Abstract: Decentralized machine learning to build models is performed at nodes where local training datasets are generated. A blockchain platform may be used to coordinate decentralized machine learning (ML) over a series of iterations. For each iteration, a distributed ledger may be used to coordinate the nodes communicating via a blockchain network. A node can include self-healing features to recover from a fault condition within the blockchain network in manner that does not negatively impact the overall learning ability of the decentralized ML system. During self-healing, the node can determine that a local ML state is not consistent with the global ML state and trigger a corrective action to recover the local ML state. Thereafter, the node can generate a blockchain transaction indicating that it is in-sync with the most recent iteration of training, and informing other nodes to reintegrate the node into ML.