Abstract: The present disclosure relates to systems and methods for generating intrinsic matrixed bar codes, such as Quick Response (“QR”) codes. In one implementation, system for generating an intrinsic matrixed bar code may include an image-receiving device, a processor configured to execute instructions, and a memory storing the instructions. The instructions may include instructions to: receive an image using the image-receiving device, generate a registration mark corresponding to the received image, select coordinates on the received image, overlay one or more matrixed bar codes on the selected coordinates, update the registration mark with the selected coordinates, and overlay the registration mark on the received image.

Abstract: A one-shot state transition decoder receives a codeword having N-bits. The decoder reads a first D-bits of the codeword to determine a stitching location d within the codeword. The stitching location identifies a start bit of unencoded data in the codeword. The codeword is decoded into an output buffer for user data of L bits, where N>L. Parameters of the decoder are set before the decoding, including setting a length of the codeword to N?L+d and a number of expected decoded bits to d. The decoding including decoding the d bits based on a set of state transition probabilities and copying decoded bits into the output buffer, the unencoded data being copied to the end of the output buffer.

Abstract: A 3D conversation system can facilitate 3D conversations in an augmented reality environment, allowing conversation participants to appear as if they are face-to-face. The 3D conversation system can accomplish this with a pipeline of data processing stages, which can include calibrate, capture, tag and filter, compress, decompress, reconstruct, render, and display stages. Generally, the pipeline can capture images of the sending user, create intermediate representations, transform the representations to convert from the orientation the images were taken from to a viewpoint of the receiving user, and output images of the sending user, from the viewpoint of the receiving user, in synchronization with audio captured from the sending user. Such a 3D conversation can take place between two or more sender/receiving systems and, in some implementations can be mediated by one or more server systems. In various configurations, stages of the pipeline can be customized based on a conversation context.

Abstract: This document describes systems and techniques directed at concurrent communication in multiple time-division duplex (TDD) bands. As new industry standards (e.g., the Fifth Generation New Radio (5G NR) standard) are being implemented, more TDD bands are becoming available for wireless communications. Generally, manufacturers will add additional antenna systems for each TDD band, but this method may become costly and need extra space, which is already limited, within the user device In various aspects, the concurrent communication system includes a radio frequency (RF) modem module configured to operate on multiple TDD bands, which may include bands that are located near each other on the RF spectrum. The concurrent communication system further includes transceiver circuitry with at least one transmission chain and at least four reception chains. The architecture of this system offers an efficient and inexpensive way to communicate on at least two TDD bands concurrently with reduced hardware cost.

Abstract: A tube lock includes a lock housing, a clamp cover, and a tube clamp. The lock housing has a tube compartment having an opening therein. In this regard, the clamp cover mates with the lock housing to provide a barrier over the opening of the tube compartment. The tube clamp has a tube entry along a major surface thereof. A first tube passageway extends from the tube entry into the housing, and a tube receiving channel is coupled to the first tube passageway. The tube clamp also comprises a clamping mechanism having a lever handle, and a tube pinch that is coupled to the lever handle. When the clamp cover is mated with the lock housing, the lever handle of the clamping mechanism is prevented from transitioning from the second position to the first position, thus locking the tube inserted into the tube clamp.

Abstract: Predicting battery life including wirelessly receiving an initial state of a battery and a tracked event associated with the battery at a cloud-based server, and updating an estimate of the battery life using the tracked event.

Abstract: A circuit for controlling a switching power supply includes a disable signal generator generating a disable signal in response to an input clock signal, a timer circuit generating a timeout signal in response to the disable signal, a comparison signal generator generating a comparison signal in response to an output signal of the power supply, a first threshold signal generator generating a first threshold signal in response to the comparison signal, the first threshold signal having a value greater than that of the comparison signal, and a first comparator comparing the first threshold signal and a sense signal to de-assert the modulation signal when the sense signal is equal to or greater than the first threshold signal and the timeout signal has a first logic value.

Abstract: An enhanced vision system includes a first optic subsystem and a transparent photodetector subsystem disposed within a common housing. The first optic subsystem may include passive devices such as simple or compound lenses, active devices such as low-light enhancing image intensifiers, or a combination of passive and active devices. The transparent photodetector subsystem receives the visible image exiting the first optic subsystem and converts a portion of the electromagnetic energy in the visible image to a signal communicated to image analysis circuitry. On a real-time or near real-time basis, the image analysis circuitry detects and identifies structures, objects, and/or individuals in the visible image. The image analysis circuitry provides an output that includes information regarding the structure, objects, and individuals to the system user contemporaneous with the system user viewing the visible image.

Abstract: A complex composite particle is made of a coal dust and binder composite that is pyrolyzed. Constituent portions of the composite react together causing the particles to increase in density and reduce in size during pyrolyzation, yielding a particle suitable for use as a proppant or in a composite structure.

Abstract: An electromagnetic magnetic shielding material is used deflect electronic and electromagnetic radiation away from an electronic device. In this manner, the electromagnetic shielding material deflects the electronic and electromagnetic radiation from a user of the device to protect the user from any electronic and electromagnetic radiation produced by the electronic device. Additionally, because the electronic and electromagnetic radiation is deflected away from the user, rather than absorbed, a user is able to safely use the electronic device with less or no exposure to electronic and electromagnetic radiation.

Abstract: A film stack includes a plurality of first films and a plurality of second films alternately stacked. At least one second film of the plurality of second films includes a solid crystal including crystal molecules aligned in a predetermined alignment direction. At least one first film of the plurality of first films includes an alignment structure configured to at least partially align the crystal molecules of the solid crystal in the predetermined alignment direction.

Abstract: A catheter insertable into a patient for monitoring pressure having an expandable outer balloon. An expandable inner balloon is positioned within the lumen of the catheter and has having a second outer wall and forms a gas chamber to monitor pressure within the patient. In response to pressure exerted on the outer wall of the outer balloon, fluid within the outer balloon enters an opening in the wall of the catheter lumen to exert a pressure on the outer wall of the expanded inner balloon to deform the inner balloon and compress the gas within the inner balloon. A pressure sensor communicates with the gas containing chamber for measuring pressure based on compression of gas caused by deformation of the expanded inner balloon resulting from deformation of the expanded outer balloon.

Abstract: A fan for generating germicidal light is disclosed, which may be adapted to mount to a ceiling. The fan includes a hub connected to a plurality of fan blades. A motor is adapted to rotate the hub. A support is adapted to support the hub and motor from the ceiling. A lighting module may include a tray adapted to receive the support, the tray including one or more lights for providing ultraviolet germicidal light. The light may be provided by LEDs on a circuit board adapted for positioning around the support without dismounting the support from the ceiling, such as one comprised of wedge-shaped segments. The modular circuit board may form part of an uplight module supported by a housing for the motor.

Abstract: A hydrogen peroxide sterilization device for sterilizing a medical device, the hydrogen peroxide sterilization device including a hermetic outer container, a hydrogen peroxide pouch, and a hydrogen peroxide solution in the solution chamber. The hermetic outer container includes a sterilization enclosure configured to receive the medical device. The hydrogen peroxide pouch includes a permeable membrane enclosing a solution chamber and is configured to be positioned in the sterilization enclosure of the outer container. The permeable membrane is configured to allow hydrogen peroxide vapor to diffuse from the solution chamber through the permeable membrane into the sterilization enclosure.

Abstract: Methods and systems are provided for an electric heavy-duty vehicle. In one example, a system for the vehicle may include a wheel hub assembly coupled to a frame of the vehicle via a first wishbone arm and a second wishbone arm, and an air spring coupled at opposite ends to a first link and a second link, each of the first link and the second link being pivotably coupled to the frame of the vehicle, the second link further being pivotably coupled to the first wishbone arm. The air spring may be positioned above the wheel hub assembly with respect to the vehicle.

Abstract: A method and user device for determining a unified Parkinson's disease rating scale (UPDRS) value associated with a user of the user device include obtaining video data associated with a movement of a body part of the user. The UPDRS value is determined using a model and the video data associated with the movement of the body part of the user. The UPDRS value is provided to permit an evaluation of the user based on the UPDRS value.

Abstract: A method for determining a position of a tow ball in an image. The method includes obtaining at least one real-time image from a vehicle. The at least one real-time image is processed with a controller on the vehicle to obtain a feature patch (f) describing at least one real-time image. A convolution is performed of the feature patch (f) and each filter (h) from a set of filters (H) with the filter (h) being based on data representative of known tow hitches fixed to the vehicle. A location of a tow ball on the tow hitch is identified in the at least one real-time image is based on the convolution between the feature patch (f) and each filter (h) from the set of filters (H).

Abstract: Technology for a user interface that supports an access control mechanism for network sharing. An example method involves providing a user interface comprising media items and media availability indicators, wherein a media availability indicator indicates one or more states of a media item; updating the media availability indicator to represent that an encrypted version of the media item and a wrapped key have been received over a connection, wherein the wrapped key was encrypted using a public key of a server; enabling the user interface to initiate the transmission of the wrapped key to the server, wherein the wrapped key comprises a cryptographic key for the encrypted version of the media item; receiving the cryptographic key that is unwrapped by the server using a private key of the server; and updating the media availability indicator of the user interface to represent the media item is available to be experienced.

Abstract: A system is provided for distribution of device key sets over a network in a protected software environment (PSE). In the system, a client device includes a connection interface for receiving a crypto hardware (CH) token belonging to a user, untrusted software, a quoting enclave, and a PSE for generating a provisioning request for a device key set. An attestation proxy server (APS) receives the provisioning message using a first network connection, and transmits the provisioning message to an online provisioning server (OPS) using a second network connection. The OPS constructs a provisioning response and an encrypted device key set, and delivers the provisioning response to the untrusted software using the first and second network connections. The PSE decrypts the encrypted device key set to obtain the device key set, re-encrypts the device key set with a local chip-specific key, and stores the re-encrypted device key set.

Abstract: A light-emitting device comprising VCSELs formed in a die. The VCSEL distribution is characterized by an essentially linear decrease in VCSEL density over the die from a highest VCSEL density in a first die region to a lowest VCSEL density in another die region. The VCSELs share a common anode and a common cathode for collective switching of the plurality of VCSELs. A method of manufacturing such a VCSEL die is also described.