Patents Assigned to National Central University
  • Publication number: 20210142148
    Abstract: A source separation method, an apparatus, and a non-transitory computer-readable medium are provided. Atrous Spatial Pyramid Pooling (ASPP) is used to reduce the number of parameters of a model and speed up computation. Conventional upsampling is replaced with a conversion between time and depth, and a receptive field preserving decoder is provided. In addition, temporal attention with dynamic convolution kernel is added, to further achieve lightweight and improve the effect of separation.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 13, 2021
    Applicant: National Central University
    Inventors: Jia-Ching Wang, Yao-Ting Wang
  • Publication number: 20210136023
    Abstract: The present invention relates to a learning and creation system based on social network, comprising: a central server installed with a social network based learning creation computer program product comprising a concept map collaborative module and an instant messaging module; and a plurality of user devices, each of which the plurality of user devices executes an internet browser, in communication with the central server through an internet, and accesses the social network based learning creation computer program product through the internet browser and provides the concept map collaborative module and the instant messaging module for a user to operate in response to an operation from the user, wherein the concept map collaborative module is configured to provide a plurality of graphical objects based on a graphical concept map for a plurality of the users to perform a co-construction for the same concept and provide for the plurality of the users to engage an instant messaging by enabling the instant messag
    Type: Application
    Filed: November 19, 2019
    Publication date: May 6, 2021
    Applicant: National Central University
    Inventors: Li-Chieh CHANG, Yen-An SHIH, Fang-Chen LU
  • Patent number: 10994993
    Abstract: A method of forming an enhanced super-resolution image is provided. The method includes: preparing a substrate comprising a glass substrate, a metal layer on the glass substrate, and a biolayer on the metal layer; placing a biological specimen on the substrate, the biological specimen being in contact with the biolayer and being attached to the metal layer through the biolayer, in which the biological specimen is labeled by a plurality of spontaneous blinking elements therein; irradiating a light beam to the metal layer via the glass substrate; receiving fluorescence signals emitted from the spontaneous blinking elements within a time period; fitting a plurality of functions respectively to each of the fluorescence signals; pinpointing peak positions of the functions; and reconstructing the peak positions to derive the enhanced super-resolution image of an underlying structure of the biological specimen in proximity to the metal layer.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: May 4, 2021
    Assignee: National Central University
    Inventors: Fan-Ching Chien, Chun-Yu Lin
  • Publication number: 20210119692
    Abstract: 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: Application
    Filed: November 19, 2019
    Publication date: April 22, 2021
    Applicant: National Central University
    Inventors: Chen-Ming KUO, Chung-Yue WANG
  • Patent number: 10976577
    Abstract: A sensing substrate including a substrate, a quantum well structure, a sensing surface and metal nanoparticles is provided. The quantum well structure is disposed on the substrate, and the quantum well structure includes at least one first metal nitride layer and second metal nitride layers. The first metal nitride layers and the second metal nitride layers are stacked on the substrate in alternation manner. The quantum well structure is located between the sensing surface and the substrate. The metal nanoparticles are disposed on the sensing surface, and the sensing surface is a rough surface. A manufacturing method of the sensing substrate and a sensor are also provided.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: April 13, 2021
    Assignee: National Central University
    Inventors: Kun-Yu Lai, Fan-Ching Chien
  • Patent number: 10975105
    Abstract: The present invention provides a composition for substrate surface modification and a method using the same, and the composition for substrate surface modification is composed of a compound of the general formula structure shown in formula 1: wherein n1 is an integer of 1 to 6, and R is a zwitterionic group. The composition for substrate surface modification uses water as a medium to perform modifying reaction over a substrate surface, and at the same time has biological modification characteristics, and abilities of immobilizing biomolecules and anti-biofouling.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 13, 2021
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Chen-Han Huang, Wen-Hao Chen, Hsing-Ying Lin
  • Patent number: 10949984
    Abstract: An object tracking system includes a foreground identifying module, an object grouping module, and an object tracking module. The foreground identifying module determines an attribute information of each pixel position of a current processing frame according to a difference between a pixel value of each pixel position of the current processing frame and that of a background model frame, so as to generate a current foreground frame. The object grouping module sets a label to each pixel position according to the attribute information of surrounding pixel positions of each pixel position, and connects adjacent pixel positions with the same label to form an object. The object tracking module determines the object being a tracked object according to whether the pixel positions corresponding to the object are at least partially overlapped with the pixel positions corresponding to the tracked object.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: March 16, 2021
    Assignee: National Central University
    Inventors: Tsung-Han Tsai, Ching-Chin Yang, Rui-Zhi Wang
  • Publication number: 20210059760
    Abstract: The present invention relates to a digital image reality aligning kit, applied to a mixed reality system integrated with a surgical navigation system including: a plurality of moveable markers corresponded to a plurality of moveable marker coordinates respectively and a part of the plurality of moveable markers configured on a surgical instrument; a positioning marker corresponded to a positioning marker coordinate and configured in proximity to a surgical area corresponded to a surgical area coordinate, when the positioning marker is settled, the relative position thereof with respect to the other part of the plurality of moveable markers and the surgical area are determined accordingly, so as to transform the surgical area coordinate to the positioning marker coordinate; and a mixed reality device corresponded to a mixed reality device coordinate and detecting the positioning marker to transform the positioning marker coordinate to the mixed reality device coordinate accordingly, so as to project a surgical
    Type: Application
    Filed: November 21, 2019
    Publication date: March 4, 2021
    Applicant: National Central University
    Inventors: Ching Shiow TSENG, Te-Hsuan FENG
  • Publication number: 20210065451
    Abstract: 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 model
    Type: Application
    Filed: November 21, 2019
    Publication date: March 4, 2021
    Applicant: National Central University
    Inventors: Ching Shiow TSENG, Te-Hsuan FENG
  • Publication number: 20210056698
    Abstract: The disclosure provides a transmissive light based tremor identification method and a system thereof. The method includes: projecting, with a transmissive light, a first optical pattern to a part to be measured, wherein the transmissive light penetrates a surface of the part to be measured and correspondingly forms a second optical pattern on an internal structure of the part to be measured, and the second optical pattern is synthesized to include at least one intersection; capturing a plurality of images of the second optical pattern on the internal structure of the part to be measured and acquiring a motion feature of each intersection based on the images; and identifying a tremor pattern of the internal structure of the part to be measured based on the motion feature of each intersection.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 25, 2021
    Applicant: National Central University
    Inventor: Rong-Seng Chang
  • Publication number: 20210052195
    Abstract: The disclosure provides a tremor identification method and a system thereof. The method includes: projecting a first optical pattern to a part to be measured, so as to correspondingly form a second optical pattern on the part to be measured, wherein the second optical pattern is synthesized to include at least one intersection; capturing a plurality of images of the second optical pattern on the part to be measured and acquiring a motion feature of each intersection based on the images; and identifying a tremor pattern of the part to be measured based on the motion feature of each intersection.
    Type: Application
    Filed: July 7, 2020
    Publication date: February 25, 2021
    Applicant: National Central University
    Inventors: Rong-Seng Chang, Kun-Chieh Chang
  • Patent number: 10916678
    Abstract: A method of is provided as a process of substrate lift-off. The present invention is mainly used for a group III-V solar cell, which has the highest power generation efficiency. An original sacrificial layer is changed into an AlAs oxide layer, which is transformed into an AlOx sacrificial layer after wet oxidation. The sacrificial layer is then soaked in an oxide-relief solution for etching. Thus, the lift-off process of a GaAs substrate can be harmlessly processed to the complex group III-V solar cell. The GaAs substrate can be recycled to be effectively further reused in photovoltaic devices with reduced cost.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: February 9, 2021
    Assignee: National Central University
    Inventor: Jin-Wei Shi
  • Publication number: 20210035768
    Abstract: The present invention relates to an ion generation composite target for an ion irradiation technology including: a substrate having a through hole formed thereon; and a graphene thin film configured on the substrate, across the through hole, having a thickness in a range between 1 nm to 3 nm, and ionized to release a proton or a carbon ion.
    Type: Application
    Filed: November 19, 2019
    Publication date: February 4, 2021
    Applicant: National Central University
    Inventors: Wei-Yen WOON, Kuramitsu YASUHIRO
  • Publication number: 20200401745
    Abstract: The present invention relates to a structure analyzing method, characterized in that a computer is configured to execute a process, including steps of establishing a spatial-temporal discrete governing model for a discontinuous nonlinear structure based on a finite element analysis, in which the spatial-temporal discrete governing model includes an equivalent nodal secant damping coefficient and an equivalent nodal secant stiffness coefficient at current time step; repeatedly calculating until convergence a secant damping coefficient slope and a secant stiffness coefficient slope based on known parameters, the known equivalent nodal secant damping coefficient and the known equivalent nodal secant stiffness coefficient at previous time step through a computer iteration algorithm; and replacing the equivalent nodal secant damping coefficient and the equivalent nodal secant stiffness coefficient by the converged secant damping coefficient slope and the converged secant stiffness coefficient slope acting as initi
    Type: Application
    Filed: November 19, 2019
    Publication date: December 24, 2020
    Applicant: National Central University
    Inventors: Tzu-Ying LEE, Wen-Hsiao HUNG, Kun-Jun CHUNG, Hao CHANG
  • Patent number: 10831579
    Abstract: An error detecting device for detecting failure of a hierarchical system comprises a detected signal receiving interface and a processor. The detected signal receiving interface receives a parent failure event occurring in the hierarchical system. If the processor diagnoses that the parent failure event is in a failure state, the detected signal receiving interface receives a first child failure event occurring in the hierarchical system. If the processor diagnoses that the parent failure event is not in the failure state, the detected signal receiving interface receives a second child failure event occurring in the hierarchical system. The parent failure event depends on the first child failure event. The second child failure event depends on the parent failure event. The processor sequentially diagnoses until the detected signal receiving interface receives one of the failure events at a bottom level in a binary search tree structure.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: November 10, 2020
    Assignee: National Central University
    Inventors: De-Ron Liang, Yen-Lin Lee, Wei-Jen Wang
  • Patent number: 10806467
    Abstract: A method of locating locking holes of an intramedullary nail includes taking an X-ray image of an intramedullary nail having two locking holes; connecting centroids of the locking hole contours and an X-ray source to define locking hole vectors and axial directions of the locking holes; calculating a first included angle and normal vector perpendicular to vectors connecting the X-ray source and the locking hole contour centroids; defining a cross product of the locking hole vector and the normal vector as a vector connecting centers of the locking holes, and calculating second and third included angles with the vector connecting the locking hole centers and the vectors connecting the X-ray source to the locking hole contour centroids; and locating the locking holes according to the first, second and third included angles, vectors connecting the X-ray source to the locking hole contour centroids, and a distance between the locking holes.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: October 20, 2020
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Ching-Shiow Tseng, Wei-En Hsu, Ching-Hsiao Yu
  • Patent number: 10753737
    Abstract: A method for reconstructing a surface of an object includes the steps as follows. A light beam is modulated by a spatial light modulator (SLM) and is projected to form a pattern, wherein the pattern has a transmittance distribution in a cosine distribution such that the pattern is formed to become a fringe pattern with a periodic change. A first impulse and a second impulse present within a first period and a second period of the cosine distribution, wherein a position where the first impulse occurs within the first period and a position where the second impulse occurs within the second period are different. The light beam is guided to an object so as to form a scan pattern on the object. The scan pattern is read. According to the scan pattern, a surface profile of the object is calculated.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: August 25, 2020
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Wei-Hung Su, Yeh-Wei Yu, Ching-Cherng Sun
  • Patent number: 10738363
    Abstract: The present invention provides an analyzer for predicting a prognosis of cancer radiotherapy, including a detection device and an arithmetic device. In a specimen, expression levels of a plurality of microRNAs (miRNAs) can be detected by the detection device. The miRNAs includes hsa-miR-130a-3p, hsa-miR-215-5p, hsa-miR-29a-3p, hsa-let-7b-5p, hsa-miR-19b-3p, hsa-miR-374a-5p and hsa-miR-148a-3p. The expression levels of miRNAs can be analyzed by the arithmetic device using logistic regression, and the analyzed values can be used to determine that the prognosis of cancer radiotherapy is poor or good.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 11, 2020
    Assignees: NATIONAL CENTRAL UNIVERSITY
    Inventors: Nian-Han Ma, Tao-Sheng Chung, An-Lun Li, Yao-Ning Chan, Chien-Lung Chen
  • Patent number: 10685474
    Abstract: The present invention provides a method for repairing incomplete 3D depth image using 2D image information. The method includes the following steps: obtaining 2D image information and 3D depth image information; dividing 2D image information into 2D reconstruction blocks and 2D reconstruction boundaries, and corresponding to 3D reconstruction of blocks and 3D reconstruction boundaries; analyzing each 3D reconstruction block, partitioning into residual-surface blocks and repaired blocks; and proceeding at least one 3D image reconstruction, which extends with the initial depth value of the 3D depth image of each of the residual-surface block and covers all the corresponding repaired block to form a repair block and to achieve the purpose of repairing incomplete 3D depth images using 2D image information.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 16, 2020
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Yeh-Wei Yu, Chi-Chung Lau, Ching-Cherng Sun, Tsung-Hsun Yang, Tzu-Kai Wang, Jia-Ching Wang, Chien-Yao Wang, Kuan-Chung Wang
  • Patent number: 10685230
    Abstract: A fusion method is provided to obtain a spatiotemporal image. The present invention is based on a conventional model—a spatial and temporal adaptive reflectance fusion model (STARFM). In the present invention, top-of-atmosphere (TOA) reflectance is kept in image fusion. Furthermore, Himawari-8, a geostationary satellite having a very high temporal resolution (10 minutes), is used. The present invention uses similar spectral bands as whose used for high-spatial-resolution image in satellites like Landsat-8 and SPOT-6. The present invention combines a high spatial-resolution image with a high temporal-resolution image obtained from Himawari-8. Thus, a TOA-reflectance-based spatial-temporal image fusion method (TOA-STFM) is proposed for generating an image having high spatiotemporal resolution. The present invention can be applied for air quality monitoring.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 16, 2020
    Assignee: NATIONAL CENTRAL UNIVERSITY
    Inventors: Chih-Yuan Huang, Hsuan-Chi Ho, Tang-Huang Lin