Patents Assigned to National Central University
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Publication number: 20220104310Abstract: The present invention relates to a method for building self-organized network. The method including steps of providing a plurality of network nodes and configuring a layer of middleware into the each of the plurality of network nodes; implementing a hop-by-hop transport test to acquire a current status of message exchange among the plurality of network nodes; computing a nodal topology for the plurality of network nodes in accordance with the current status; establishing at least one peer-to-peer communication link among the plurality of network nodes in accordance with the nodal topology; and transmitting messages through the at least one peer-to-peer communication link.Type: ApplicationFiled: October 20, 2020Publication date: March 31, 2022Applicant: National Central UniversityInventors: CHIH-LIN HU, CHITRIN BAMRUNG, YING-JIUN LU, WU-MIN SUNG, JIAN-CHIUAN HOU
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Publication number: 20220089990Abstract: The present invention relates to a composite membrane. The composite membrane includes: an elastic polymer substrate having a first surface processed by a surface modification; and a thermosensitive conductive layer formed on the first surface by performing a co-polymerization process, allowing an electrical current to pass through, and altering a hydrophilicity of a membrane surface in response to a change of a temperature.Type: ApplicationFiled: October 22, 2020Publication date: March 24, 2022Applicant: National Central UniversityInventors: WEI-WEN HU, CHIA-WEN TSAO
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Publication number: 20220088603Abstract: The present invention relates to a bioreactor. The bioreactor includes a fluidic channel layer including a set of channels configured to generate a suction caused by a negative pressure or a retrieval force caused by a positive pressure; an elastic conductive layer configured with a pair of electrodes, configured on the fluidic channel layer, driven by the suction or the retrieval force to have a deformation toward a deformation direction, and receiving a voltage difference by the pair of the electrodes to form an electrical field along an electrical field direction; and a culture layer configured on the elastic conductive layer and providing for a biological tissue to culture in vitro on the elastic conductive layer.Type: ApplicationFiled: October 23, 2020Publication date: March 24, 2022Applicant: National Central UniversityInventors: CHIA-WEN TSAO, WEI-WEN HU
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Patent number: 11282197Abstract: The present disclosure provides an operating method of a system for analyzing brain tissue based on computerized tomographic imaging, and the operation method includes steps as follows. A computed tomography image of a subject is aligned to a predetermined standard brain space image, to obtain a first normalized test computed tomography image. A voxel contrast of the first normalized test computed tomography image is enhanced to obtain an enhanced first normalized test computed tomography image. The enhanced first normalized test computed tomography image is aligned to an average computed tomographic image of a control group to obtain a second normalized test computed tomography image. An analysis based on the second normalized test computed tomography image and a plurality of computerized tomographic images of the control group is performed to obtain a t-score map.Type: GrantFiled: July 14, 2020Date of Patent: March 22, 2022Assignees: National Central University, Taipei Medical University (TMU)Inventors: Syu-Jyun Peng, Yu-Wei Chen, Jing-Yu Yang, Jang-Zern Tsai, Kuo-Wei Wang, Yeh-Lin Kuo
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Patent number: 11271587Abstract: The present invention relates to a compressed sensing apparatus for compressed sensing of a set function consisting of a plurality of input sets containing a group of data. The apparatus includes: a plurality of sensing units acquiring a group of sampling data representing a plurality of sampling sets selected out of the plurality of input sets; a compression and computation unit enabling a compression to the group of data based on the group of sampling data in accordance with a Fourier basis set generated on the basis of the plurality of input sets and sampling sets, and a computation to compute a Fourier coefficient set based on a sparse regression technique which is in relation with the Fourier basis set; and a reconstruction unit predicting the group of data based on the Fourier coefficient set.Type: GrantFiled: August 14, 2020Date of Patent: March 8, 2022Assignee: National Central UniversityInventor: Kuo-Shih Tseng
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Publication number: 20210388440Abstract: A method for estimating a risk for a subject suffering from encapsulating peritoneal sclerosis is provided, including measuring an expression level of at least one microRNA from a sample of the subject, and the microRNA is selected from miR-17, miR-100, miR-155, miR-202, miR-422a, and miR-483; comparing the expression level of the microRNA in the sample to that of a same miRNA of a control, when the expression level of miRNA in the sample is lower than that of the control, the subject is estimated having the risk of encapsulating peritoneal sclerosis. A kit for estimating a risk for a subject suffering from encapsulating peritoneal sclerosis is also provided, including at least one agent for identifying the at least one microRNA as above mentioned from the sample of the subject.Type: ApplicationFiled: July 9, 2020Publication date: December 16, 2021Applicant: National Central UniversityInventors: Nian-Han Ma, Chiu-Chin Huang, Jin-Bor Chen, Chin-Chung Tseng, I-Kuan Wang, Chien-Lung Chen, An-Lun Li
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Publication number: 20210373559Abstract: The present invention relates to an environmental coverage oriented motion system. The system includes a rangefinder module configured to measure a distance in real time; an odometry module configured to measure a velocity or a position in real time; a powered vehicle carrying the rangefinder module and the odometry module; and a controller module carried by the powered vehicle, configured to receive one of the distance, the velocity and the position, performing an environmental coverage oriented motion scheme based on one of the distance, the velocity and the position to select a plurality of positions, and commanding the powered vehicle to move among the plurality of positions.Type: ApplicationFiled: August 14, 2020Publication date: December 2, 2021Applicant: National Central UniversityInventors: KUO-SHIH TSENG, CHIH-YUAN CHOU
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Publication number: 20210363494Abstract: Universal human induced pluripotent stem cells (universal hiPSCs) and a method of forming the same are provided in the disclosure, including the following steps: providing a first cell group including human stem cells; providing a second cell group including human mononuclear cells; in some embodiments, the second cell group further includes human stem cells, in which the human stem cells of the second cell group are allogenic cells from the first cell group; mixing the first cell group and the second cell group to form cell mixture; maintaining the cell mixture at a temperature below 30° C. for at least one day; reprogramming the human stem cells of the cell mixture to obtain universal hiPSCs. The universal hiPSCs includes human leukocyte antigen-1 (HLA class I) gene and human leukocyte antigen-2 (HLA class II) gene, but no HLA class I and HLA class II expressions.Type: ApplicationFiled: July 27, 2020Publication date: November 25, 2021Applicant: National Central UniversityInventors: Akon Higuchi, Tzu-Cheng Sung
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Patent number: 11176112Abstract: An apparatus of adaptive index structures is provided. Four common data attributes, including time, space, keyword, and value, are used. The present invention is a structure adaptively selecting the most efficient combined index by estimating index performance and selectivity rate. The main concept is to set indexes with high selectivity rates at positions having higher priorities for processing query. The intermediate result of query is minimized and the performance is further improved. The present invention uses multiple indexes, where all possible combined-index orders are considered and the best combined index is selected according to different query adaptabilities. As a result, the structure has a high chance of saving query time at a rate of more than 25 times as compared to a structure with indexes of a single attribute sequence. Furthermore, as compared to the traditional relational database PostGIS, the reaction time is also twice faster.Type: GrantFiled: October 30, 2020Date of Patent: November 16, 2021Assignee: National Central UniversityInventors: Chih-Yuan Huang, Yu-Jui Chang
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Patent number: 11171713Abstract: The present invention relates to a wireless communication relay system for an unmanned vehicle includes a control station providing as a console for an implementation of a remote control; an unmanned mission vehicle operated in a first area and receiving the remote control from the control station through a communication link; and an unmanned relay vehicle operated in a second area and in the communication link between the control station and the unmanned mission vehicle.Type: GrantFiled: November 19, 2019Date of Patent: November 9, 2021Assignee: National Central UniversityInventors: Chen-Ming Kuo, Chung-Yue Wang
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Patent number: 11170203Abstract: A training data generation method for human facial recognition and a data generation apparatus are provided. A large amount of virtual synthesized models are generated based on a face deformation model, where changes are made to face shapes, expressions, and/or angles to increase diversity of the training data. Experimental results show that the aforementioned training data may improve the accuracy of human face recognition.Type: GrantFiled: November 27, 2019Date of Patent: November 9, 2021Assignee: National Central UniversityInventors: Jia-Ching Wang, Chien-Wei Yeh
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Publication number: 20210336633Abstract: The present invention relates to a compressed sensing apparatus for compressed sensing of a set function consisting of a plurality of input sets containing a group of data. The apparatus includes: a plurality of sensing units acquiring a group of sampling data representing a plurality of sampling sets selected out of the plurality of input sets; a compression and computation unit enabling a compression to the group of data based on the group of sampling data in accordance with a Fourier basis set generated on the basis of the plurality of input sets and sampling sets, and a computation to compute a Fourier coefficient set based on a sparse regression technique which is in relation with the Fourier basis set; and a reconstruction unit predicting the group of data based on the Fourier coefficient set.Type: ApplicationFiled: August 14, 2020Publication date: October 28, 2021Applicant: National Central UniversityInventor: KUO-SHIH TSENG
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Patent number: 11100950Abstract: A method for reading and writing with holographic system includes the following operations: (a) providing a reference light and a signal light; (b) transferring the reference light and the signal light to an optical recording medium, for recording an interference grating; (c) changing the reference light and the signal light and repeating the operations (a) to (b) until M interference gratings are recorded on the optical recording medium; (d) providing a reading light to the optical recording medium, for reading the M interference gratings at the same time to generate an interference result, wherein the interference result is a result that diffraction signals of the M interference gratings interfere to each other; and (e) changing the reading light and repeating the operation (d), for obtaining N interference results. A holographic storage system is also disclosed herein.Type: GrantFiled: October 29, 2020Date of Patent: August 24, 2021Assignee: National Central UniversityInventors: Yeh-Wei Yu, Ching-Cherng Sun
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Patent number: 11101399Abstract: A single-photon detector is provided. The detector has multiple avalanche layers. It has an avalanche photodiode (APD) structure using single photon. The APD is made of indium aluminum arsenide (InAlAs). At least two avalanche layers are designed. When the layer for avalanche is numbered only one and the gain is very big, the speed will be deteriorated very quickly. With the design of two avalanche layers in the present invention for the very big gain, the speed deterioration can be suppressed. After measuring, the present invention shows a faster speed as compared to prior arts. It proves that, by using more than two avalanche layers, the present invention effectively improves the feature of single-photon detector. Hence, the present invention is especially suitable for single-photon detection.Type: GrantFiled: June 5, 2020Date of Patent: August 24, 2021Assignee: National Central UniversityInventors: Jin-Wei Shi, Yi-Shan Lee
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Publication number: 20210254993Abstract: The present invention relates to a traffic situation detecting method. The method includes steps of acquiring a current location, a speed of movement and a direction of movement for a ground vehicle; using the current location as a starting point and drawing a detecting scope on a digital map toward the direction of movement; varying a size of the detecting scope in adaptive to an interval of the speed to which the speed of movement belongs; accessing a traffic server to retrieve a traffic event and determining whether the traffic event is situated within the detecting scope; and marking the traffic event located within the detecting scope on a digital map.Type: ApplicationFiled: August 14, 2020Publication date: August 19, 2021Applicant: National Central UniversityInventors: CHIH-LIN HU, YU-KAI HUANG, HSIANG-YUAN CHIU, KUN-YU LIN, SHENG-ZHI HUANG
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Patent number: 11080934Abstract: The present invention relates to a mixed reality system integrated with a surgical navigation system including a group of moveable position markers configured on a surgical instrument; a position sensor sensing the group of moveable position markers to acquire an instrument coordinate for the surgical instrument; a registered positioning marker configured in proximity to a surgical area to acquire a surgical area coordinate for the surgical area; a plurality of mixed reality sensors detecting the registered positioning marker and a plurality of mixed reality information; a computing unit module configured to receive the instrument coordinate, the surgical area coordinate, the plurality of mixed reality information, and a digital model of the surgical area, to render the digital model corresponded to the surgical area, and to add a digital instrument object into the digital model in accordance with the instrument coordinate; and a mixed reality display providing for a user to view and showing the digital modelType: GrantFiled: November 21, 2019Date of Patent: August 3, 2021Assignee: National Central UniversityInventors: Ching Shiow Tseng, Te-Hsuan Feng
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Patent number: 11078891Abstract: A light-driven rotor applied to a water surface includes a bottom plate, a thermally conductive sheet having a base portion covering on an upper surface of the bottom plate and a plurality of leads extended from the border of the base portion and bent downwardly from the edge of the bottom plate to contact the water surface, and a light-absorbing material attached to an upper surface of the thermally conductive sheet for absorbing the light irradiated thereon by a light source and providing light energy required for heating the thermally conductive sheet so that the heat generated by the thermally conductive sheet is conducted to the water surface via the leads to form a gradient change in surface tension, providing a resultant torque for driving the light-driven rotor to rotate. The materials selected for the three-layer structure design of the light-driven rotor are generally applicable, inexpensive and easy to obtain.Type: GrantFiled: March 19, 2020Date of Patent: August 3, 2021Assignee: National Central UniversityInventor: Cheng-Hsun Nien
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Patent number: 11056604Abstract: An avalanche photodiode (APD) is provided with a mixed composite charge layer. A novel structure of InAlAs is designed with the mixed layer. A single P-type field control layer is divided into three layers of different materials with each two forming a heterojunction structure. By controlling the relative concentration distributions and thicknesses of the first, second, and third P-type field control layers along with a mesa shape formed through chemical selective etching, a part of the second P-type field control layer is exposed to the air with a part of the first one etched out at the same time through this single structure having the mesa shape. Thus, the field of a multiplication layer is further confined at center to concentrate electric-field so that fringe field is low but not collapsed. Hence, the overall speed is increased, the intensity high, and sensitivity good while response is fast and efficiency high.Type: GrantFiled: February 18, 2020Date of Patent: July 6, 2021Assignee: National Central UniversityInventor: Jin-Wei Shi
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Patent number: 11042983Abstract: The present disclosure provides an operating method of an automatic brain infarction detection system on magnetic resonance imaging (MRI), which includes steps as follows. Images corresponding to different slices of a brain of a subject are received from the MRI machine. The image mask process is performed on first and second images of the images. It is determined whether the cerebellum image intensity and the brain image intensity in the first image are matched. When the cerebellum image intensity and the brain image intensity are not matched, the cerebellar image intensity in the first image is adjusted. The first image is processed through a nonlinear regression to obtain a third image. A neural network identify an infarct region by using the first, second and third images that are cut.Type: GrantFiled: May 27, 2020Date of Patent: June 22, 2021Assignees: National Central University, Taipei Medical University (TMU)Inventors: Jang-Zern Tsai, Syu-Jyun Peng, Yu-Wei Chen, Meng-Zong Tsai, Kuo-Wei Wang, Yeh-Lin Kuo
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Patent number: 11038452Abstract: A motor control system includes a motor and a processor, and the processor is electrically connected to the motor. The processor performs the following actions: calculating the d-axis magnetic flux and the q-axis magnetic flux in a synchronous rotating reference frame according to the information fed back by the motor; multiplying the d-axis magnetic flux and the q-axis magnetic flux by a d-axis current feedback and a q-axis current feedback to be a d-axis flux-current product and a q-axis flux-current product respectively; subtracting the q-axis flux-current product from the d-axis flux-current product to get a flux-current product error; sending the flux-current product error to a proportional-integral controller to generate a present compensation current-angle command; adding the present compensation current-angle command and a previous current-angle command to obtain the present current-angle command; sending the present current-angle command to a d-q axis current regulator for processing.Type: GrantFiled: November 25, 2019Date of Patent: June 15, 2021Assignee: National Central UniversityInventors: Faa-Jeng Lin, Shih-Gang Chen, Chia-Hui Liang