Abstract: Techniques for low power gunshot detection are disclosed. Infrared information is collected using a gunshot sensor device. The infrared information is collected using mid-infrared band sensing to provide motion detection. Additional infrared information is buffered using the gunshot sensor device. The additional infrared information is collected using near-infrared band sensing. The buffering is enabled by the motion detection. Acoustic information is collected using the gunshot sensor device. The collecting acoustic information is enabled by the motion detection. A gunshot is detected using the gunshot sensor device. The detecting is based on the additional infrared information and the acoustic information. The detecting includes monitoring the acoustic information to identify a high-intensity gunshot sound and correlating the high-intensity gunshot sound to the infrared information that was buffered.

Abstract: A method includes displaying an artificial reality environment to a user, determining a context in which the user is interacting with the artificial reality environment, and determining, based on the context, that the user intends to use a hand gesture to interact with a target virtual object within the artificial reality environment. The method further includes monitoring, while the user is attempting to interact with the target virtual object, motional patterns of the hand gesture performed by the user with respect to the target virtual object, and generating a motion-stabilization profile associated with the user based on the motional patterns. The motion-stabilization profile is configured to be utilized to stabilize the hand gesture performed by the user during subsequent user interactions within the artificial reality environment.

Abstract: The present disclosure is directed to analyzing motion plans of autonomous vehicles. In particular, the methods, devices, and systems of the present disclosure can: receive data indicating a motion plan, of an autonomous vehicle through an environment, based at least in part on multiple different constraints of the environment; and determine, for each constraint of the multiple different constraints, a measure of an influence of the constraint on the motion plan.

Abstract: A filter apparatus includes a filter, such as a cartridge, positioned within a housing. The filter apparatus has multiple ports and valves, so as to allow a user to easily switch between a filtration mode of filtering fluids and a maintenance mode of cleaning the filter. The filter can have a filter substrate in a housing and after filtrate builds up on the substrate, the substrate can be cleaned by directing a spray of fluid, such as from a ring of nozzles at the top of the housing, onto the substrate. A maintenance port can be provided to drain the debris washed from the substrate. The filter can switch between a backwash mode and a filtration mode.

Abstract: A cooling device for a rotating machine has a fan assembly coupled with a backing plate. A hub, on the backing plate, secures the cooling device with a shaft. The backing plate includes one or more vents to enable air to exit the cooling device. The fan includes an opening to enable air to enter the cooling device. A chamber is formed between the fan assembly and the backing plate. During rotation, air is drawn into the opening. The air is passed into the chamber and exits through the vents to cool a work surface or working pad attached to the backing plate.

Abstract: The disclosed optical lens assemblies may include a pre-strained deformable element that exhibits a non-uniform mechanical strain or stress profile, a structural support element coupled to the pre-strained deformable element, and a deformable medium positioned between the pre-strained deformable element and the structural support element. Related head-mounted displays and methods of fabricating such optical lens assemblies are also disclosed.

Abstract: This disclosure relates to systems with multiple NFC front ends and at least one shared controller. One disclosed system includes a first discrete device having a first near field communication (NFC) controller, a second discrete device having a second NFC controller, a communicative connection between the first discrete device and the second discrete device, and a system controller located on the first discrete device. The system controller is communicatively connected to the first NFC controller. The system controller is connected to the second NFC controller via the communicative connection. In specific approaches, the second discrete device can include a display which is also controlled by the system controller, and the system controller is NCI compliant and application aware. In specific approaches, the system controller can control the second NFC controller based on the content concurrently being provided to the display.

Abstract: The present disclosure relates to one or more memory management techniques. In embodiments, one or more regions of storage class memory (SCM) of a storage array is provisioned as expanded global memory. The one or more regions can correspond to SCM persistent cache memory regions. The storage array's global memory and expanded global memory can be used to execute one or more storage-related services connected to servicing (e.g., executing) an input/output (IO) operation.

Abstract: A disclosed example includes at least one memory, programmable circuitry, and instructions to cause the programmable circuitry to increment a first value corresponding to a first position in a vector based on a first bit value representation, the first bit value representation corresponding to a first audience member identifier; increment a second value corresponding to a second position in the vector based on a second bit value representation, the second bit value representation corresponding to a second audience member identifier; estimate the second frequency moment of the media impression data using the vector; determine the variance of the second frequency moment; and based on the second frequency moment, schedule a query of the media impression data to be processed by a computer at a future time.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for efficiently using computing resources when responding to content requests. Methods include using a prioritization model and a specified threshold specifying the maximum allowable negative outcome for a content provider, to determine whether a received content request is a low priority request. Methods further include throttling access to computing resources to respond to low priority requests, while providing access to computing resources for other content requests. Methods also include regularly updating the prioritization model and the specified threshold based on data for a new set of content requests.

Abstract: Systems, devices, and methods for improving wireless power transmission are disclosed herein. A method of powering an implantable ventricular assist device with an external charging device includes receiving a signal indicative of a change in a property of a deformable coil of the resonant circuit. A performance property of the deformable coil is determined based on the signal. An adjustment to a tuning of the resonant circuit is identified based on the performance property of the deformable coil. The resonant circuit is tuned according to the adjustment to the tuning of the resonant circuit. The resonant circuit is driven to transmit power to a secondary coil electrically coupled with the implantable ventricular assist device to power the ventricular assist device.

Abstract: Techniques for providing carbon dioxide include generating thermal energy, an exhaust fluid, and electrical power from a power plant; providing the exhaust fluid and the generated electrical power to an exhaust fluid scrubbing system to separate components of the exhaust fluid; capturing heat from a source of heat of an industrial process in a heating fluid; transferring the heat of the industrial process captured in the heating fluid to a carbon dioxide source material of a direct air capture (DAC) system; providing the generated electrical power from the power plant to the DAC system; providing the thermal energy from the power plant to the DAC system; and separating, with the transferred portion of the heat of the industrial process and the provided thermal energy, carbon dioxide from the carbon dioxide source material of the DAC system.

Abstract: Systems and methods are disclosed for data protection in a cluster of data processing accelerators (DPAs) using dynamic partitioning of DPAs into, or out of, one or more groups of DPAs in the cluster. A host device instructs each DPA in the cluster to link, or unlink, with one or more DPAs in the cluster to establish groups of DPAs in the cluster. A DPA that is not linked to any DPA is set to a low-power mode. Once grouped, the host device and a DPA can access all resources of the DPA. DPAs in the same group as a first DPA can access non-secure resources, but not secure resources, of the first DPA. DPAs in a different group from the first DPA cannot access any resources of the first DPA. A scheduler in the host device allocates processing tasks for one application or user to a group.

Abstract: This document describes techniques and devices to detect and classify human and animal presence and/or motion based on changes in the interaction of the human or animal with Wireless Local Area Network (WLAN) radio frequency (RF) signals within or about a building structure, such as a home or office. A first WLAN device transmits a sounding packet to a second WLAN device and receives an acknowledgement (ACK) of receiving the sounding packet by the second WLAN device. The first WLAN device uses the received ACK to determine Channel State Information (CSI) for an RF signal path between the first WLAN device and the second WLAN device, aggregates the determined CSI with additional CSI, and uses the aggregated CSI to determine a presence or a motion within the structure.

Abstract: A satellite-communications gateway includes a pedestal, a hub movably coupled to the pedestal and supported by the pedestal, an antenna configured for satellite communications, first electronics positioned inside the hub, and second electronics communicatively coupled to the first electronics and positioned inside the pedestal. The antenna is mounted to the hub and supported by the pedestal via the hub. The first electronics is arranged to convert a radio-frequency signal from the antenna to an intermediate-frequency signal and transmit the intermediate-frequency signal to the second electronics. The second electronics is arranged to convert the intermediate-frequency signal to a digital signal.

Abstract: An acoustic customization system to enhance a user's audio environment. One type of enhancement would allow a user to wear headphones and specify what ambient audio and source audio will be transmitted to the headphones. Added enhancements may include the display of an image representing the location of one or more audio sources referenced to a user, an audio source, or other location and/or the ability to select one or more of the sources and to record audio in the direction of the selected source(s). The system may take advantage of an ability to identify the location of an acoustic source or a directionally discriminating acoustic sensor, track an acoustic source, isolate acoustic signals based on location, source and/or nature of the acoustic signal, and identify an acoustic source. In addition, ultrasound may be serve as an acoustic source and communication medium.