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公开(公告)号：US11681095B2
公开(公告)日：2023-06-20
申请号：US17824160
申请日：2022-05-25
发明人： Zhanqiang Hui
IPC分类号： G02B6/02
CPC分类号： G02B6/02366 , G02B6/02042
摘要： Disclosed is a Chinese knot-like porous fiber core ultra-high birefringence THz optical fiber. The optical fiber comprises a substrate, claddings and fiber cores, wherein the claddings and the fiber cores are arranged in the substrate, and the fiber cores are embedded in the centers of the claddings; and the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, the center of the first fiber core region 4 serves as the origin of coordinates, and the first fiber core region 4 is composed of six regular hexagon units with overlapped boundaries in the x-axis direction. In the present disclosure, the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, and the three regions jointly form a fiber core region of a Chinese knot-like porous fiber core.
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公开(公告)号：US20230168401A1
公开(公告)日：2023-06-01
申请号：US17797711
申请日：2022-01-10
发明人： Rui LIU
CPC分类号： G01V1/186 , G01V1/3808 , G01V13/00
摘要： The present disclosure belongs to the technical field of an ultrasonic sound field measuring system, and relates to a manual acoustic axis aligning method for an ultrasonic sound field measuring system. The method comprises: obtaining an intersection between a current acoustic axis and a plane by scanning two detection planes, and calculating an inclination angle of the current acoustic axis; judging whether the inclination angle is less than an adjustment threshold. The method does not depend on the specific mechanical implementation of adjusting an acoustic axis angle. The iterative algorithm combined with geometric information can converge quickly. The criterion of intersection between the acoustic axis and the plane used is not limited to the amplitude criterion, and other criteria can be introduced by increasing the distance between two planes to increase the robustness of measuring the acoustic axis angle.
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13.发明公开公开(公告)号：US20230163855A1
公开(公告)日：2023-05-25
申请号：US17634951
申请日：2021-04-20
发明人： Feng Zhao , Yi Wei , Jingling Li , Jianjun Yu
IPC分类号： H04B10/516 , H04B10/50 , H04B10/61
CPC分类号： H04B10/516 , H04B10/503 , H04B10/616
摘要： A system for generating and receiving a polarization multiplexed single sideband signal is provided, which includes a light wave generating unit connected with a signal modulating unit and configured to generate a light wave; a driving signal generating unit connected with the signal modulating unit and configured to generate a driving signal; the signal modulating unit configured to split the light wave into two orthogonal polarized light waves, and modulate the driving signal on the polarized light waves to obtain a polarization multiplexed upper sideband optical signal and a polarization multiplexed lower sideband optical signal which are coupled to output a mixed signal, the mixed signal is transmitted to a separating and converting unit to obtain electrical millimeter wave signals; the electrical millimeter wave signals are transmitted through an MIMO wireless link to a signal sampling and processing unit to be converted into digital signals for digital signal processing.
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公开(公告)号：US20220327503A1
公开(公告)日：2022-10-13
申请号：US17616975
申请日：2019-12-24
发明人： Feng ZHAO , Jingyu FENG
摘要： The present disclosure discloses a distributed consensus algorithm and apparatus for rapidly generating a block. The algorithm includes: broadcasting a new transaction to all nodes (S110); collecting, by each of the nodes, the new transaction into a block (S120); evaluating a trust value of each of the nodes to obtain an evaluation result (S130); selecting honest miners according to the evaluation result (S140); obtaining negotiation rules (S150); creating, by the honest miners, a new block according to the negotiation rules, and broadcasting the new block to all the nodes (S160); and when all transactions in the nodes are valid but do not take effect, receiving the new block and adding the new block to a blockchain (S170).
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公开(公告)号：US20180252549A1
公开(公告)日：2018-09-06
申请号：US15757537
申请日：2015-11-24
发明人： Hui SONG , Rong ZHANG , Zhongmin WANG , Chen LIANG , Yan HE , Xia HENG , Lin FAN , Wenlang WANG , Feifei HE , Chen LU , Zhou ZHI
IPC分类号： G01C22/00
CPC分类号： G01C22/006 , A61B5/112 , G01C25/00
摘要： Technical solutions are described for step counting, performed by: calibrating (100) a step counting frequency and/or an effective value of step counting pace of a three-axis acceleration sensor according to acquired step counting data of a preset number of steps; and performing (101) step counting according to the calibrated step counting frequency and/or the calibrated effective value of step counting pace of the three-axis acceleration sensor obtained from the calibration. By calibrating the step counting frequency and/or the effective value of step counting pace of the three-axis acceleration sensor, error in the step counting caused by different walking paces of a user and different step counting frequencies of the three-axis acceleration sensors are avoided, improving accuracy of step counting. Also, the calibration improves the accuracy by handling ineffective step counting in the step counting data.
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公开(公告)号：US20230138099A1
公开(公告)日：2023-05-04
申请号：US17539227
申请日：2021-12-01
摘要： A broadband multiple-input multiple-output (MIMO) antenna with self-decoupling characteristics includes: a dielectric substrate, a metal patch printed on an upper surface of the dielectric substrate, and a pair of horizontal back-to-back elliptical tapered slots and a vertical elliptical tapered slot etched on the metal patch. A microstrip line and another bent micro strip line are respectively used to feed the vertical elliptical tapered slot and the pair of horizontal elliptical tapered slots, and characteristic modes of the horizontal slots excited by the bent microstrip line and characteristic modes of the vertical slot excited by the micro strip line are mutually orthogonal. By adopting the technical scheme, no additional decoupling structure needs to be introduced, and lower coupling can be realized in a wider working frequency band.
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公开(公告)号：US20220381980A1
公开(公告)日：2022-12-01
申请号：US17804840
申请日：2022-05-31
发明人： Zhanqiang HUI
IPC分类号： G02B6/126
摘要： Disclosed is a compact on-chip polarization splitter-rotator based on a Bezier curve gradient waveguide. The Bezier curve gradient waveguide structure is a standard SOI-based wafer structure, comprising a substrate, of which the bottom layer is buried with oxide (SiO2), and the top is composed of silicon waveguides, including a common output waveguide and a specially-structured waveguide containing Bessel curve boundaries. The common waveguide structure is composed of a cuboid waveguide, and the specially-structured waveguide is composed of an input region, an output region, a width-gradient waveguide (Bezier curve gradient structure) and a coupling region, where a width of the gradient waveguide is determined by a third-order Bezier curve, and the coupling region is composed of two asymmetrical waveguide regions.
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18.发明申请公开(公告)号：US20220351344A1
公开(公告)日：2022-11-03
申请号：US17679400
申请日：2022-02-24
发明人： WEIHUA LIU , BIYAN MA , YING LIU , YANCHAO GONG , FUPING WANG
摘要： The present disclosure provides a multi-exposure image fusion (MEF) method based on a feature distribution weight of a multi-exposure image, including: performing color space transformation (CST) on an image, determining a luminance distribution weight of the image, determining an exposure distribution weight of the image, determining a local gradient weight of the image, determining a final weight, and determining a fused image. The present disclosure combines the luminance distribution weight of the image, the exposure distribution weight of the image and the local gradient weight of the image to obtain the final weight, and fuses the input image and the weight with the existing pyramid-based multi-resolution fusion method to obtain the fused image, thereby solving the technical problem that an existing MEF method does not consider the overall feature distribution of the multi-exposure image.
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