Abstract: In a method and apparatus for extreme-light image enhancement, an input image is passed to a lighting classification module in order to be classified into two categories: an under-exposed lighting condition and an over-exposed light condition. Then the classified image is subsequently passed to an enhancement module which comprises a first image enhancement unit and a second image enhancement unit using a mapping function based on a gamma mapping function for mapping the classified image to an output image, respectively. A parameter of the gamma mapping function is estimated by a parameter estimation network, based on the classified image. The parameter estimation network may be a lightweight CNN network which is trained by an unsupervised approach.

Abstract: A system captures and utilizes expert knowledge in artificial intelligence. The system includes a knowledge capture module for extracting expert knowledge from subject matter experts in a conversational format and a knowledge management module for cataloging and summarizing the extracted knowledge. The system also includes a digital subject matter expert (dSME) module for ingesting the cataloged knowledge and using it to guide users in building AI models. A chatbot interacts with a user and selects the appropriate dSME module that is relevant to the user request. The system attempts to answer the user request based on the dSME module. If the dSME module lacks knowledge to solve the problem, the system uses a set of tools, for example, internet based search engine to solve the problem.

Abstract: The invention relates to a measurement device for measuring weak magnetic fields, such as fields in the sub-picotesla range (e.g. lower than a few nanotesla). The measurement device comprises ultrasensitive magnetic sensors (or arrays of ultrasensitive magnetic sensors) coupled to low-noise processing circuitry. The processing circuitry comprises a two-stage design including low-noise amplifiers and analog filters. The invention is suitable for magnetocardiovascular (MCV) applications thanks to its ability to measure very small magnetic fields with good accuracy and very little noise.

Abstract: The invention provides a model training method and system that uses pretrained features of a teacher neural network trained on a billion-size dataset to train a student neural network. The model training method leverages the teacher neural network to design a more stable loss function that works well with more sophisticated learning rate schedules to reduce training time and make the augmentation designing process more natural.

Abstract: There is provided a method for enhancing quality of calls in a wireless communication system. The method includes: receiving a new radio (NR) measurement setup from a network while connecting an IP multimedia subsystem (IMS)-based voice call with an external terminal; based on the network not supporting voice over new radio (VoNR) and supporting a standalone (SA) mode and a non-standalone (NSA) mode, determining whether a frequency set by the NR measurement setup is usable and determining a network type of the set frequency; and, based on determining that the set frequency is used for the SA mode, blocking measurement on the set frequency.

Abstract: A method for enhancing communication interruption using supplementary uplink (SUL) in a wireless communication system includes: registering a user terminal at a cell using a normal uplink (NUL) carrier; receiving configuration information of a SUL carrier from the cell; identifying whether uplink configuration information on the NUL carrier is not received for a specified period of time; based on the uplink configuration information on the NUL carrier not being received for the specified period of time, setting the SUL carrier to be used as an uplink carrier; and performing a random access channel (RACH) procedure using the SUL carrier.

Abstract: A safety control system for self-driving vehicles when traveling in narrow roads with blind turns. The system has features to avoid collision when moving, predict traffic situations at blind turns and assist steering, and warn about safety when traveling in narrow roads. The collision avoidance feature of the surrounding environment when moving is performed based on the signals of the lidar sensors, ultrasonic distance sensors and the cameras on the vehicle. The feature of predicting the situation at the turn based on sound and light signals as the vehicle approaches the turn. The steering assist feature helps to follow the scenario corresponding to the vehicle's prediction when the turn is reached, and provides warning signals such as lights and horns in accordance with traffic situations.

Abstract: Examples include column readout amplifiers and image sensors including same. In one example, a column readout amplifier includes a signal amplifier having an amplifier output and first and second amplifier inputs, a filter capacitor having first and second terminals, the second terminal connected to a ground terminal, a buffer amplifier having a buffer amplifier input and a buffer amplifier output, a switching network configured to switchably connect the amplifier output to the buffer amplifier input and the buffer amplifier output to the first terminal of the filter capacitor during a first time period, and to switchably connect the amplifier output directly to the first terminal of the filter capacitor during a second time period, and a low-pass filter connected in a feedback path of the signal amplifier between the amplifier output and the first amplifier input, the low-pass filter including a series resistor and a capacitor.

Abstract: This invention relates to the auxiliary equipment for kitchen hood with the purpose of preventing the cooking odors and oil from spreading out the kitchen. The auxiliary equipment includes a rectangular frame designed in module type, curtains, and brackets to fix the auxiliary equipment to a kitchen hood. The frame includes four frame modules assembled together with curtain rollers having curtains fitted inside the frame modules. The curtain rollers rotate to raise or lower the curtains simultaneously. When the curtains are lowered a temporary enclosure is provided. The curtains are made of transparent material to prevent cooking odors and cooking oil from escaping the enclosure. The curtains are provided with fire-proof footage to keep the curtains safe. Small slits are provided on the curtains to help the cook to easily observe and handle food being cooked within the enclosure.

Abstract: A limb support comprises a spar, a limb rest, and a coupler. The spar is configured to be supported from a patient support apparatus and adjustable relative to the patient support and has a longitudinal axis. The coupler includes a release that is actuable between a first position permitting movement of the coupler relative to the patient support and a second position preventing movement of the coupler relative to the patient support.

Abstract: A dome reinforcement shell suitable for a pressure vessel may include a winding of layers of fiber-reinforced composite material tapes, having a dome-shaped portion with a base and a central axis. The layers may include: at least one proximal layer of fiber-reinforced composite material, the at least one proximal layer having a start angle ?1 with respect to the central axis measured at a first end of the proximal layer, with ?1 being in a range of from 0° to 90°, and at least one distal layer of fiber-reinforced composite material, the at least one distal layer having a start angle ?2 with respect to the central axis measured at a first end of the distal layer, with ?2 strictly being in a range of from 0° to ?1.

Abstract: A pressure vessel including an internal fluid storage chamber, and an outer composite structure enclosing or encasing the internal fluid storage chamber. The outer composite structure has a thickness containing both helical layers and hoop layers of reinforcing fibers, wherein at least 20% of a combined thickness of all of the helical layers are located within a 25% innermost thickness of the outer composite structure. The internal fluid storage chamber is defined by a liner including a generally cylindrical central portion having a first outer diameter at a first longitudinal end, and a first dome-shaped longitudinal end portion having a base portion and a first intermediate portion located between the generally cylindrical central portion and the base portion for connecting the first longitudinal end of the generally cylindrical central portion to the base portion of the first dome-shaped longitudinal end portion.

Abstract: A corner bracket comprising a volume of matter having n pairs of parallel faces, where n is an integer larger than 2; each face of each pair of parallel faces comprising an opening; the openings in the faces of each pair of parallel faces being joined by a cylindrical recess having a longitudinal axis perpendicular to the faces joined by the cylindrical recess; the longitudinal axis of the cylindrical recesses being arranged such that the cylindrical recesses do not intersect each other. The number n can be 3 and the volume of matter can be a cube.

Abstract: Radar signal detection and parameter estimation is central in passive surveillance systems, providing inputs for many information processing modules in order to detect, localize, indentify and intercept hostile targets. The proposed method for detecting radar signals and estimating their intra-pulse parameters in time-varying noisy environments consists of several stages: magnitude-squared envelopes calculation, adaptive noise floor estimation, detection statistics calculation, rising edge detection, time of arrival estimation, falling edge detection, time of departure estimation, pulse width estimation, amplitude estimation and center frequency and bandwidth estimation. Estimated intra-pulse parameters are wrapped into pulse descriptor words (PDWs) for information processing tasks, where each PDW consists of time of arrival, time of departure, pulse width, pulse amplitude, center frequency, signal bandwidth, noise floor level and additional useful information.

Abstract: A boss assembly may be configured for a pressure vessel having a liner defining a fluid storage chamber and a composite shell enclosing or encasing the liner. Such a boss assembly may include a dome reinforcement part made of fiber-reinforced composite material coupled to a boss part. The dome reinforcement part may be configured to be covered by the composite shell and configured to cover a dome portion of the liner. The boss part may be mechanically coupled to the dome reinforcement part during the dome reinforcement part fabrication.

Abstract: A RF power generator has a RF power source configured to generate an output signal. A power splitter is configured to receive the output signal and generate a plurality of split signals. A demagnetizing circuit is configured to receive the plurality of split signals. The demagnetizing circuit is configured to include a plurality of inductances corresponding to the plurality of split signals. The plurality of inductances is configured to reduce the effects of mutual impedance of an ICP chamber in series with the plurality of inductances so that a ratio between a pair of the plurality of split signals varies substantially linearly as one of the pair of the plurality of split signals is varied.

Abstract: A heart valve prosthesis is provided having a self-expanding multi-level frame that supports a valve body comprising a skirt and plurality of coapting leaflets. The frame transitions between a contracted delivery configuration that enables percutaneous transluminal delivery, and an expanded deployed configuration having an asymmetric hourglass shape. The valve body skirt and leaflets are constructed so that the center of coaptation may be selected to reduce horizontal forces applied to the commissures of the valve, and to efficiently distribute and transmit forces along the leaflets and to the frame. Alternatively, the valve body may be used as a surgically implantable replacement valve prosthesis.

Abstract: The present invention provides a pyrotechnic valve that can be recovered for reuse, which includes a ignitation assembly that is mounted to a stop ring assembly and a body assembly. The body assembly contains a piston assembly that plays the role of moving to cut off the interior tubing passageways of the elbow block when the ignition assembly works. The technical solution described in this invention provides a reliable and stable pyrotechnic valve design, providing a valve recovery solution that helps reduce the cost of testing.

Abstract: The invention refers to a pyrotechnic latch retraction mechanism that can be applied to various types of flying devices. The main structure of this mechanism includes piston-cylinder assembly, electric ignition assembly and guide assembly. The solution described in this invention not only makes the exploitation, use and preservation of equipment more convenient, reduces difficulties, prevents risks and saves costs, but also ensures safety and security, reliability during device operation.

Abstract: The invention refers to a pyrotechnic latch retraction mechanism that can be applied to various types of flying devices. The main structure of this mechanism includes piston-cylinder assembly, electric ignition assembly and guide assembly. The solution described in this invention not only makes the exploitation, use and preservation of equipment more convenient, reduces difficulties, prevents risks and saves costs, but also ensures safety and security, reliability during device operation.