Abstract: A method of generating an AR user manual in an electronic 3D viewing environment, comprising: recording a moving trajectory of the 3D viewing environment's optical sensor; receiving a landmark location information; executing an iterative target object pose estimation comprising: estimating an estimated target object pose from each of the optical sensor poses in the recorded moving trajectory and the landmark location; calculating an estimation error from a 3D model being arranged in the estimated target object pose and projected onto the target object in the real-world scene; calculating a mean of the estimation errors; and reiterating the iterative target object pose estimation to optimize the estimated target object pose for a minimum mean estimation error; if the minimum mean estimation error is within a predefined estimation error threshold, then rendering the AR user manual onto the target object according to the optimized estimated target object pose.

Abstract: A switch-less transceiver has parallel LC resonances that act as OFF switches and series LC resonances act as ON switches when resonating at the transmit (TX) or receive (RX) frequency. When the transmitter is disabled, no current flows through series LC filters. Instead, series impedances to ground provide an RF ground to the transmitter output node. A TX inductor between the transmitter output node and the antenna is in parallel with a TX blocking capacitor to ground, which together form a parallel resonance to ground that has a high impedance when resonating at the receiver frequency. This high impedance acts as an OFF switch to block antenna signals from entering the transmitter. The two paths are in parallel, presenting a high impedance to the antenna and forming an OFF switch when the receiver is disabled.

Abstract: A method for applying image encoding recognition in the execution of natural language processing (NLP) tasks, comprising the processing steps as follows. A sentence from a textual source is extracted by an NLP-based feature extractor. A word vector is generated in response to the sentence by the NLP-based feature extractor. The word vector is converted into a feature vector {right arrow over (b)} by the NLP-based feature extractor, in which the feature vector {right arrow over (b)} satisfies {right arrow over (b)}?m and the parameter m is a positive integer. The feature vector is transformed into an image set having a plurality of two-dimensional images by a transformer. The image set is fed to a neural network to execute image recognition by a processor, so as to analyze the sentence.

Abstract: Provided herein is a method for measuring a concentration of a metal ion in an electrodeposition solution. The method of the present disclosure can substantially reduce the interference of organic additives and different electrode conditions on voltammetric metal ion concentration measurements.

Abstract: An assembly for power converting includes a circuit board, a power switching circuit mounted on the circuit board, an inductor coil that includes a winding and two ends, a magnetic core that is surrounded by the winding of the inductor coil, and a magnetic mixture that encapsulates the circuit board, the power switching circuit, the inductor coil and the magnetic core. The winding of the inductor coil is stacked above the power switching circuit and is sufficiently large to fill up a size of the assembly.

Abstract: A mass spectrometer system (10) is provided in which the voltage controller (12) can have separate first and second high-voltage control circuits (34, 40) which are physically disconnected from and at different ground planes to one another. Communication between the first and second high-voltage control circuits (34, 40) is enabled via an interface circuit (30) and one or more wireless, preferably radio-frequency, communicators (38, 44, 46, 48).

Abstract: The present disclosure describes methods, devices, and non-transitory computer readable storage medium for managing lifecycle of a knowledge base (KB) in chatbot systems. The method includes receiving an update request and updating a current-version KB as a new current-version KB. The method also includes receiving a first test request from a knowledge point (KP) operator and determining whether the new current-version KB passes a first test; and in response to the determination that the new current-version KB passes the first test, submitting the new current-version KB as a new submit-version KB. The method further includes receiving a second test request from a KP manager and determining whether the new submit-version KB passes a second test; and in response to the determination that the new submit-version KB passes the second test, storing an original production-version KB as a pervious-version KB and submitting the new submit-version KB as a new production-version KB.

Abstract: A bit-depth optimization engine reduces the hardware cost of a neural network. When training data is applied to a neural network during training routines, accuracy cost and hardware costs are generated. A hardware complexity cost generator generates costs for weights near bit-depth steps where the number of binary bits required to represent a weight decreases, such as from 2N to 2N?1, where one less binary bit is required. Gradients are generated from costs for each weight, and weights near bit-depth steps are easily selected since they have a large gradient, while weights far away from a bit-depth step have near-zero gradients. The selected weights are reduced during optimization. Over many cycles of optimization, a low-bit-depth neural network is generated that uses fewer binary bits per weight, resulting in lower hardware costs when the low-bit-depth neural network is manufactured on an Application-Specific Integrated Circuit (ASIC).

Abstract: A method and apparatus for transporting packets over a wide area network (WAN) in a communications network are provided where the WAN comprises a plurality of interconnected nodes including at least a first communication node, a second communication node and a WAN controller node. The method comprises establishing virtual private network (VPN) tunnel connections on communication links between some or all of the communication nodes comprising the WAN, using a non-stream-oriented transport layer protocol to establish a non-stream-oriented association for each VPN tunnel connection, and, on receiving a packet connection from a source device at said first communication node, encapsulating packets from said packet connection into one or more non-stream-oriented associations between the first communication node and the second communication node to thereby transport said packets from the source device to the second communication node.

Abstract: An Electrical Protective Device for Low-Voltage DC networks (EPDL) has a controller that on start-up first closes a mechanical relay in a ground line, waits a first delay, then closes a bipolar transistor to allow current to flow through a positive supply line, then turns on a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) connected in parallel with the bipolar transistor once an output voltage reaches a minimum target. The controller reverses the start-up order to open the MOSFET, bipolar transistor, and finally the relay when an over-voltage, input-power, or integrated-current fault is detected. The output current is integrated over time and compared to a threshold, allowing for capacitor charging or other temporary over-loads. When the output voltage dips below the minimum target, the MOSFET is turned off until the voltage recovers. If the voltage does not recover within a time period, the bipolar transistor and then the relay are turned off.

Abstract: Provided is a method for determining a Hybrid Automatic Repeat Request (HARQ) transmission signal. The method comprises receiving soft bits from a wireless communication physical channel uplink signal, said received soft bits being deemed to comprise HARQ LLRs and soft decoding said HARQ LLRs to output a hard ACK/NACK decision. The method includes processing said HARQ LLRs based on said hard ACK/NACK decision such that the processed HARQ LLRs map to a same or identical constellation point or points if the physical channel uplink signal contains an ACK or NACK transmission signal. The method also includes using said processed HARQ LLRs to determine if the physical channel uplink signal contains an ACK or NACK transmission signal or to determine if the physical channel uplink signal comprises discontinuous transmission (DTX).

Abstract: A method of tracking a point of interest (POI) in an electronic three-dimensional (3D) viewing environment, comprising: capturing via an optical sensor and recording motions of an onsite user, wherein each motion comprises an image surrounding and a pose of the onsite user; displaying a snapshot to a remote user, wherein the snapshot is one of the recorded motions; receiving a POI indicator in the snapshot from the second user; estimating a 3D position of the POI in the electronic 3D viewing environment using the POI indicator data, a moving trajectory from each of the recorded motions to the snapshot, and an estimation of distance between the optical sensor to the POI center; and rendering and superimposing the POI indicator in the electronic 3D viewing environment to be displayed to the onsite user using the estimated 3D position of the POI, the moving trajectory, and the recorded motions.

Abstract: Described is a controller for an AC to DC or a DC to AC multi-phase power converter of a type having N power converter phases, where N is greater or equal to 2. The controller comprises a control module configured to change or vary a phase shift angle of the input current or output current for each of the N power converter phases such that an average phase shift value for each of said N power converter phases over a control module AC line cycle is about, near or substantially the same value. In an embodiment of an AC/DC or a DC/AC multi-phase power converter of a type having N power converter phases arranged in parallel, an advantage of arranging the average phase shift value for each power converter phase to be substantially equal or about equal over an AC line cycle is that it reduces or eliminates any imbalances in the input currents or output currents of the N power converter phases.

Abstract: Systems and methods which obtain template images corresponding to pattern units of tessellated images using a template unit boundary identification technique are described. Template unit boundary identification techniques of embodiments operate to analyze a sample of a tessellated image to determine a template unit size for the template image, use the determined template unit size to define pixel analysis line segments for identifying template unit boundaries in the tessellated image, and select a template image based on the template unit boundaries identified using the pixel analysis line segments. One or more sample area images may be selected for use in determining a template unit size. Pixel analysis line segments, configured based upon a determined template unit size, may be used for identifying boundaries of a template unit. Moreover, dynamic template image updating may be provided.

Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.

Abstract: A method and system for tracking a position and orientation of a target object that moves along a two-dimensional plane, a camera to generate video frames of the target object, and a processor configured to correct perspective scaling of a current one of the video frames; estimate a current location and angle of the target object using a motion model or its previous location/angle; cut out a region of interest from the current video frame around the estimated current location; resize the region of interest to shrink its size by a predetermined ratio M (width=width/M, height=height/M) or equivalently reducing the image resolution of the region of interest by the ratio M (resolution=resolution/M); track a new location of the target object by template matching the current region of interest with a previously stored template; and either conclude the tracked target object location and angle are accurate and updating the template if a stopping criterion is reached with indication of successful tracking, or proceed

Abstract: A rotational geometric phase hologram has geometric phase optical elements (GPOEs) serially cascaded along a common optical axis to form a GPOE cascade used for receiving a linearly-polarized light beam and generating output light beams at an exit surface of the last GPOE. Interference occurred in the output light beams creates a polarization interference pattern on the exit surface. A photoalignment substrate, when positioned in close proximity to the exit surface, records the pattern. Advantageously, each GPOE is rotatable about the common optical axis. Respective rotation angles of the GPOEs are determined according to a spatially-varying linear polarization orientation distribution selected to be generated for the polarization interference pattern.

Abstract: A DC-DC power converter has an auxiliary tank cascaded to share an efficiency tank's inductor, capacitor, and transformer. Switching transistors pump the auxiliary tank at startup to provide a boost current. The switching frequency is reduced in steps and the voltage gain and power of the converter sensed until the voltage gain matches a voltage gain calculated for the efficiency tank. Then tank switchover occurs and transistors to the efficiency tank are pumped with the last switching frequency used by the auxiliary tank, and the auxiliary tank is not pumped. Since the voltage gains before and after tank switchover are equal, no output voltage deviation or current spike occurs. A voltage sag or failure switches back to the auxiliary tank at a switching frequency determined by a dynamic contour line where the voltage gains of the two tanks are equal for the current power state.

Abstract: An image volume formed by plural anatomical images each having plural image slices of different imaging modalities is segmented by a 2D convolutional neural network (CNN). An individual anatomical image is preprocessed to form a mixed-context image by incorporating selected image slices from two adjacent anatomical images without any estimated image slice. The 2D CNN utilizes side information on multi-modal context and 3D spatial context to enhance segmentation accuracy while avoiding segmentation performance degradation due to artifacts in the estimated image slice. The 2D CNN is realized by a BASKET-NET model having plural levels from a highest level to a lowest level. The number of channels in most multi-channel feature maps of a level decreases monotonically from the highest level to the lowest level, allowing the highest level to be rich in low-level feature details for assisting finer segmentation of the individual anatomical image.

Abstract: A silicon carbide diode that contains a silicon carbide substrate, a silicon carbide layer on top of the silicon carbide substrate, two first lower barrier metal portions disposed on the silicon carbide layer and separated from each other along a top surface of the silicon carbide layer, and a first higher barrier metal portion connected to the two lower barrier metal portions. The silicon carbide layer is thinner and having lower doping than the silicon carbide substrate. The first higher barrier metal portion is located between the two first lower barrier metal portions on the silicon carbide layer along a direction of the top surface of the silicon carbide layer. By reducing the leakage current at the junction barrier, the reverse breakdown voltage of the silicon carbide diode is significantly improved.