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公开(公告)号：US20230045672A1
公开(公告)日：2023-02-09
申请号：US17395858
申请日：2021-08-06
发明人： Kin Lung Chan , Ying WANG , Zhuanyun ZHANG
摘要： An apparatus installed in a head-mounted display (HMD) has a coupling prism formed by packing diagonally-reflective (DR) prisms together. Each DR prism has an internal diagonal plane that is at least partially reflective. A captured image of eye or environmental scene received by a DR prism is reflected to an image-leaving end surface thereof. Image-leaving end surfaces of all DR prisms are oriented along a same direction to optically multiplex the captured images to create a multi-channel image. An imaging sensor on the coupling prism images the multi-channel image, avoiding inter-channel interference caused by spillover of captured-image signals while allowing one imaging sensor instead of multiple ones to image the captured images. A micro display displays a visible image to one DR prism, whose internal diagonal plane reflects the visible image along a direction towards an eye. Hence, the apparatus also enables image displaying to a HMD wearer.
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公开(公告)号：US20230021838A1
公开(公告)日：2023-01-26
申请号：US17588186
申请日：2022-01-28
发明人： Ming Leung Vincent TSE , Anson CHAN , Yuelin WANG , Chun ZHANG
IPC分类号： H05B47/10
摘要： A wearable electronic device including: a first portion and a second portion. The first portion includes a first conductive area on a first inner surface of the first portion and a third conductive area on a first outer surface of the first portion. The second portion includes one or more second conductive areas on a second outer surface of the second portion and a fourth conductive area on a second inner surface of the second portion, wherein the first portion is connected to the second portion. A circuit unit is disposed in a second space of the second portion, wherein the circuit unit is configured to enable an input/output unit of the circuit unit in response to the first conductive area and the second conductive areas are triggered.
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公开(公告)号：US11544787B2
公开(公告)日：2023-01-03
申请号：US16916095
申请日：2020-06-29
发明人： Ze Yang , Zhibin Lei , Yang Liu , Kangheng Wu , Shiyu Liao
摘要： A method for a protocol in digital asset trading includes step as follow. Trading information is exchanged between the first and the second nodes, in which a first digital currency belonging to the first node and a second digital currency belonging to the second node are expected to be exchanged, and prices of the first and second digital currencies are time-dependent. An atomic swap script and a smart contract are generated. A compensation fee to be paid to the second node by the first node is computed. A redeeming or refunding event is performed in response to the atomic swap script and the smart contract with paying the compensation fee to the second node, in which the compensation fee is dependent on the prices of the first and second digital currencies such that is time-dependent.
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4.发明授权公开(公告)号：US11528232B1
公开(公告)日：2022-12-13
申请号：US17458543
申请日：2021-08-27
发明人： Xingxia Zhang , Ka Hung Chong , Qijun Zhu
IPC分类号： H04L47/629 , H04L47/628 , H04L47/6295
摘要： An apparatus for managing data messages comprises: one or more producers generating data streams containing data messages of varying sizes that required processing; one or more consumers for processing the data messages; a multi-message queues sub-system for queuing data messages having different processing time durations; a rate limiter for discriminating data messages based on processing speed for queuing the data messages in one or the other message queue of the multi-message queues sub-system; a fair dispatcher for dispatching the data messages to one or more consumers according to their processing statuses to maximize the processing capacity of the apparatus; and a task splitter for splitting data messages that are deemed too large.
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公开(公告)号：US11494690B2
公开(公告)日：2022-11-08
申请号：US16354207
申请日：2019-03-15
发明人： Yang Liu , Kangheng Wu , Zhi Bin Lei , Vincent Wai-Leuk Tam , Wei Chen Huang , Lawrence Kwan Yeung
IPC分类号： G06N20/00 , G06F16/28 , G06N5/04 , G06F16/2455
摘要： A method of high dimensional data analysis in real-time comprising executing dimension-reducing an input historical data set under a t-SNE model and determining from the resulting dimension-reduced data set a recent; further dimension-reducing the recent group data set under a PCA model; statistical analyzing the further dimension-reduced data set to determine a threshold group for distinguishing abnormal data from normal ones in a real-time data stream. The method may further include training a classifier using the abnormal or normal data set for predicting anomaly in the real-time data source system. Alternatively, a discrepancy training data set is computed from one of the normal and abnormal data sets and be used to train one of independent normal and abnormal data regression models; with the other one trained by transfer learning based on the trained one. The trained regression models are then used to predict discrepancy values.
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公开(公告)号：US11494627B1
公开(公告)日：2022-11-08
申请号：US17370171
申请日：2021-07-08
发明人： Tao Li , Xiaoqing Shan , Ka Lung Tim Wong , Xuejiao Liu , Yu Liu
摘要： A dynamic-tile neural network accelerator allows for the number and size of computational tiles to be re-configured. Each sub-array of computational cells has edge cells on the left-most column that have an added vector mux that feeds the cell output back to an adder-comparator to allow Rectified Linear Unit (ReLU) and pooling operations that combine outputs shifted in from other cells. The edge cells drive external output registers and receive external weights. The weights and outputs are shifted in opposite directions horizontally between cells while control and input data are shifted in a same direction vertically between cells. A column of row data selectors is inserted between sub-arrays to bypass weights and output data around sub-arrays, while a row of column data selectors are inserted between sub-arrays to bypass control and input data. Larger tiles are configured by passing data directly through these selectors without bypassing.
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公开(公告)号：US20220337166A1
公开(公告)日：2022-10-20
申请号：US17846116
申请日：2022-06-22
发明人： Yiu Pang CHAN , Tin Ho LI , Kai Wing Andy YEUNG , Qingchun LI
摘要： A two-stage power converter has a Power-Factor Converter (PFC) and a Dual Active Bridge (DAB) converter connected together by a DC link voltage. The DAB converter outputs a battery voltage with a battery current. A PFC controller divides a reference power constant by the battery voltage to get a battery current reference that is multiplied by a constant and compared to the DC link voltage to adjust Pulse-Width-Modulation (PWM) control signals to the PFC. The reference power constant is compared to the battery current during Constant-Power mode to cause a DAB controller to modulate duty ratio and phase difference between primary and secondary-side PWM control signals to the DAB converter. The DAB converter duty ratio and phase difference are modulated by comparing the battery current to a battery current limit during Constant-Current mode and by comparing the battery voltage to a battery voltage limit during Constant-Voltage mode.
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8.发明申请公开(公告)号：US20220252674A1
公开(公告)日：2022-08-11
申请号：US17169675
申请日：2021-02-08
发明人： Minjie XU , Liya ZHENG , Yaofeng SUN
IPC分类号： G01R31/392 , H02J7/00 , G01R31/3842 , G01R31/367 , G01R31/3828 , B07C5/344
摘要： Used batteries are screened based on a measured Constant-Current Impulse Ratio. A used battery is charged using a Constant Current (CC) until a voltage target is reached, and the current integrated to obtain the CC charge applied, QCC. Then the battery continues to be charged using a Constant Voltage (CV) of the voltage target until the charging current falls to a minimum current target. The current is integrated over the CV period to obtain the CV charge applied, QCV. The measured CCIR is the ratio of QCC to (QCC+QCV). The measured CCIR is input to a calibration curve function to obtain a modeled State of Health (SOH) value. The used battery is sorted for reuse or disposal based on the modeled SOH value. The calibration curve function is obtained by aging new batteries to obtain CCIR and SOH data that are modeled using a neural network.
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公开(公告)号：US11387690B1
公开(公告)日：2022-07-12
申请号：US17198427
申请日：2021-03-11
发明人： Minglu Xia , Kun Wu , Ziyang Gao
摘要： A wireless power transmitter has electromagnets and a transmitter coil mounted on a moving plate. Current in the main DC circuit is switched into the electromagnets by transistors that control the amount and direction of current through the electromagnets to control the strength and polarity of electromagnetic fields generated by the electromagnets. A controller initially drives a high gate voltage onto transistors to cause the electromagnets on the transmitter to generate a maximum attractive force with magnets on the receiver, causing the moving plate to move the transmitter coil into closer alignment with the receiver coil. A power factor is measured on both receiver and transmitter to estimate the power transfer efficiency. The controller then reduces the gate voltage by a step size and the power factors are measured again. The gate voltage continues to be adjusted to optimize the power transfer efficiency until reaching a maxima.
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10.发明授权公开(公告)号：US11321953B2
公开(公告)日：2022-05-03
申请号：US16830206
申请日：2020-03-25
发明人： Hoi Fai Yu , Xueyan Tang , Meng Chen
摘要： Computer implemented methods and computerized apparatus for posture, dimension and shape measurements of at least one 3D object in a scanned 3D scene are provided. The method comprises receiving a point cloud and performs 3D geometric feature extraction. In one embodiment, the 3D geometric feature extraction is based on a 3D hybrid voxel-point structure, which comprises a hybrid voxel-point based normal estimation, a hybrid voxel-point based plane segmentation, a voxel-based geometric filtering, a voxel-based edge detection and a hybrid voxel-point based line extraction. Through the process of 3D geometric feature extraction, the geometric features are then passed to the geometric-based dimension and shape measurements for various applications. After 3D geometric feature extraction, a further process of feature-based object alignment is performed. According to one embodiment of the present invention, using the exact lines extracted from the 3D geometric feature extraction, the computerized apparatus generates line-to-line (L2L) pair features for each identified object in the 3D scene. The L2L pair features in turn is used for aligning the identified 3D objects with target 3D objects.
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