Patents Assigned to National Chung Cheng University
  • Patent number: 12254674
    Abstract: A method for recognizing arteries and veins on a fundus image includes: executing a pre-process operation on the fundus image, so as to obtain a pre-processed fundus image; generating a fundus spectral reflection dataset associated with pixels of the pre-processed fundus image, based on the pre-processed fundus image, and a spectral transformation matrix; obtaining a plurality of principle component scores associated with the pixels of the pre-processed fundus image, respectively; and determining, for each of the pixels of the pre-processed fundus image that has been determined as a part of a blood vessel, whether the pixel belongs to a part of an artery or a part of a vein.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: March 18, 2025
    Assignee: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Yu-Ming Tsao, Yong-Song Chen, Yu-Sin Liu, Shih-Wun Liang
  • Publication number: 20240300025
    Abstract: A lathe protective cover includes a mounting member and a cover unit. The mounting member has a main body including a mounting portion and a pivot portion, is configured to be detachably mounted on and configured to be movable relative to a cutter seat or a workpiece seat of a lathe. The cover unit includes a base plate pivotally connected to the pivot portion and having a through hole, and first and second side plates connected to two opposite sides of and cooperating with the base plate to define a shielding space communicating with the through hole. The cover unit is rotatable relative to the mounting member between a closed position, in which the mounting portion is adjacent to the through hole, and an open position, in which the shielding space and the through hole are away from the mounting portion.
    Type: Application
    Filed: June 14, 2023
    Publication date: September 12, 2024
    Applicant: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Arvind Mukundan, Riya Karmakar, Shubham Nitin Pawar
  • Publication number: 20240230739
    Abstract: A measurement device and a method of measuring a radiation pattern by using the same are provided. The measurement device includes at least one positioner configured to move a first antenna for measuring a main lobe and a back lobe of an electromagnetic wave radiated from the first antenna.
    Type: Application
    Filed: January 6, 2023
    Publication date: July 11, 2024
    Applicants: Advanced Semiconductor Engineering, Inc., National Chung Cheng University
    Inventors: Sheng-Chi HSIEH, Chen-Chao WANG, Sheng-Fuh CHANG, Chia-Chan CHANG, Shih-Cheng LIN, Yuan-Chun LIN, Wei-Lun HSU, Kuo-Hung CHENG
  • Patent number: 11962949
    Abstract: A method of performing air pollution estimation is provided. The method is to be implemented using a processor of a computer device and includes: generating a spectral image based on an original color image of an environment under test using a spectral transformation matrix; supplying the spectral image as an input into an estimating model for air pollution estimation; and obtaining an estimation result from the estimating model indicating a degree of air pollution of the environment under test.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: April 16, 2024
    Assignee: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Chia-Cheng Huang, Ting-Chun Men
  • Patent number: 11928842
    Abstract: A method of measuring chromaticity of a target object is implemented using a computer device that stores a plurality of light source spectrum datasets each associated with a specific object. The method includes: obtaining a captured color image of the target object; generating a spectral image based on the captured color image using a spectral transformation matrix; obtaining one of the plurality of light source spectrum datasets that is associated with the target object; and calculating a chromaticity dataset of the target object based on the spectral image and the one of the plurality of light source spectrum datasets.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: March 12, 2024
    Assignee: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Yu-Ming Tsao, Yu-Lin Liu
  • Publication number: 20240027185
    Abstract: A method for measuring a thickness of a thin film layer disposed on a piece of glass is implemented using a computer device that stores a thin film image of the thin film layer, a surface dataset associated with a surface of the thin film layer, and a plurality of reference parameter sets each being associated with a specific thickness of the thin film layer, the method including: generating a spectral image dataset that includes spectral data associated with different pixels of the thin film image using a spectral transformation matrix; performing regression analysis on the surface dataset and the spectral image dataset, so as to obtain a thickness parameter set including a plurality of thickness parameters; and determining a thickness of the thin film layer using the thickness parameter set and the plurality of reference parameter sets.
    Type: Application
    Filed: October 27, 2022
    Publication date: January 25, 2024
    Applicant: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Yu-Yang Chen, Yu-Ming Tsao, Yu-Lin Liu, Ching-Yi Huang
  • Publication number: 20240023499
    Abstract: A reciprocating aquaponic device includes a housing, a bell-shaped siphon, and a water pump. The housing defines a water inlet space, and a tidal space and a planting space in fluid communication with the water inlet space. The housing includes a mounting wall over the tidal space, and an inclined wall under the tidal space. The inclined wall is inclined downward toward the planting space. The bell-shaped siphon is dispose on the mounting wall and is disposed for moving water from the water inlet space through the siphon opening and into the tidal space. The water pump is disposed in the fish tank for drawing water from the fish tank into the water inlet space.
    Type: Application
    Filed: December 8, 2022
    Publication date: January 25, 2024
    Applicant: National Chung Cheng University
    Inventors: Shi-Ming Huang, Chih-Yuan Kuo, Yi-Feng He
  • Patent number: 11810300
    Abstract: This application provides a method for detecting images of testing object using hyperspectral imaging. Firstly, obtaining a hyperspectral imaging information according to a reference image, hereby, obtaining corresponded hyperspectral image from an input image and obtaining corresponded feature values for operating Principal components analysis to simplify feature values. Then, obtaining feature images by Convolution kernel, and then positioning an image of an object under detected by a default box and a boundary box from the feature image. By Comparing with the esophageal cancer sample image, the image of the object under detected is classifying to an esophageal cancer image or a non-esophageal cancer image. Thus, detecting an input image from the image capturing device by the convolutional neural network to judge if the input image is the esophageal cancer image for helping the doctor to interpret the image of the object under detected.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: November 7, 2023
    Assignee: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Tsung-Yu Yang, Yu-Sheng Chi, Ting-Chun Men
  • Publication number: 20230338898
    Abstract: A paper-based micro-concentrator includes a bearing substrate, a fluid reservoir unit, a filter paper, an external electric field, an ion exchange membrane and a magnet. The fluid reservoir unit includes a first buffer solution tank and a second buffer solution tank, which are interval disposed on the bearing substrate. The filter paper is disposed on the bearing substrate, and two ends of the filter paper are respectively placed in the first buffer solution tank and the second buffer solution tank. The external electric field includes a cathode and an anode, which are respectively placed in the first buffer solution tank and the second buffer solution tank. The ion exchange membrane is disposed on the filter paper and close to the first buffer solution tank. The magnet is movably disposed under the bearing substrate.
    Type: Application
    Filed: July 19, 2022
    Publication date: October 26, 2023
    Applicant: National Chung Cheng University
    Inventors: Shau-Chun Wang, Lai-Kwan Chau, Jia-Jie Lin, Yuan-Yu Chen, Ya-Chuan Chen
  • Patent number: 11784703
    Abstract: A system for diffraction of an electromagnetic wave includes a substrate, a transmission unit, and a plurality of antennas. The substrate is made of a second medium. The transmission unit is disposed on the substrate. The transmission unit has a plurality of transmission lines. Each of the transmission lines has a transmission line length that is associated with a first medium operation wavelength that is associated with an operation frequency. The transmission lines are connected successively. The antennas are disposed on the substrate, respectively.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: October 10, 2023
    Assignee: National Chung Cheng University
    Inventors: Sheng-Fuh Chang, Chia-Chan Chang, Shih-Cheng Lin, Yuan-Chun Lin
  • Patent number: 11777225
    Abstract: A method of manufacturing an electromagnetic wave reflecting structure includes the steps of presetting an operating frequency, a reflected wave pointing angle, an incident wave pointing angle, and an incident distance of an electromagnetic wave; obtaining an electromagnetic wave reflecting structure phase distribution of an electromagnetic wave reflecting structure according to the operating frequency, the reflected wave pointing angle, the incident wave pointing angle, and the incident distance; and arranging a plurality of reflecting elements on a substrate according to the electromagnetic wave reflecting structure phase distribution and a reflecting element phase curve of any one of the reflecting elements at the operating frequency.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: October 3, 2023
    Assignee: National Chung Cheng University
    Inventors: Sheng-Fuh Chang, Chia-Chan Chang, Shih-Cheng Lin, Wei-Yang Chen, Yu-Cheng Lin
  • Patent number: 11621479
    Abstract: An electromagnetic wave transmission structure adapted to cause convergence of an electromagnetic wave includes a substrate and a transmission unit provided on the substrate and including an annular metal plate. The annular metal plate has a weighted average inner radius and a weighted average outer radius each related to the wavelength of the electromagnetic wave, the distance between the electromagnetic wave transmission structure and a focal point defined as the point of convergence of the electromagnetic wave, and the distance between the source of the electromagnetic wave and the focal point. The plural inner and outer radii of the annular metal plate have the same trend of variation. Each inner or outer radius corresponds to a weight related to the reference included angle formed between the inner or outer radius and a reference axis.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: April 4, 2023
    Assignee: National Chung Cheng University
    Inventors: Sheng-Fuh Chang, Chia-Chan Chang, Shih-Cheng Lin, Yuan-Chun Lin
  • Patent number: 11580637
    Abstract: The present application related to a method for detecting an object image using a convolutional neural network. Firstly, obtaining feature images by Convolution kernel, and then positioning an image of an object under detected by a default box and a boundary box from the feature image. By Comparing with the sample image, the detected object image is classifying to an esophageal cancer image or a non-esophageal cancer image. Thus, detecting an input image from the image capturing device by the convolutional neural network to judge if the input image is the esophageal cancer image for helping the doctor to interpret the detected object image.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: February 14, 2023
    Assignee: National Chung Cheng University
    Inventors: Hsiang-Chen Wang, Hao-Yi Syu, Tsung-Yu Yang, Yu-Sheng Chi
  • Patent number: 11502741
    Abstract: A method for deploying an electromagnetic wave guiding structure includes a communication dead zone analysis step and an improvement measure determination step. In the former step, a frequency band in use and an electromagnetic wave signal strength threshold value are preset, and a processing module creates an electromagnetic map for the electromagnetic wave intensity over an area in the frequency band in use based on an electronic map of the area, wherein the electromagnetic map shows a communication dead zone. In the latter step, the processing module obtains an existing electromagnetic wave path according to the electromagnetic map and infers from the existing electromagnetic wave path the installation position and type of at least one electromagnetic wave guiding structure assembly suitable for use to guide the electromagnetic wave to the communication dead zone and ensure that the coverage ratio of the electromagnetic wave in the area reaches a threshold value.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: November 15, 2022
    Assignee: National Chung Cheng University
    Inventors: Sheng-Fuh Chang, Chia-Chan Chang, Shih-Cheng Lin, Yuan-Chun Lin
  • Patent number: 11467154
    Abstract: An optical nano-biosensing system and a method thereof are provided. The optical nano-biosensing system includes a nano-plasmonic sensing device, a high-resolution analog-to-digital converter, a signal acquisition and processing device, and an intelligent electronic device. The nano-plasmonic sensing device further includes a light-source control circuit, a sample receiver, a light detector, and a signal-amplifying circuit. The sample receiver receives a sample. The light-source control circuit generates an incident light from a light source to be projected onto the sample receiver. The light detector detects an emergent light from the sample receiver to generate a detection signal. The signal-amplifying circuit converts the detection signal to generate an amplified signal. The high-resolution analog-to-digital converter digitizes the amplified signal to generate a digital signal.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 11, 2022
    Assignee: National Chung Cheng University
    Inventors: Sung-Nien Yu, Tsung-Heng Tsai, Lai-Kwan Chau
  • Patent number: 11258878
    Abstract: A method for providing a differentiation in terms of quality of service (QoS) for multiple tenants in a network, by a networking device receives a data packet from a transmitting tenant, and the networking device identifies the tenant and a priority class of the received packet. The networking device then determines one or more color markers to apply to the received packet according to the sending tenant and the priority to be associated with the packet. The networking device then transmits or does not transmit the packet onwards depending on one or more color markers applied to the packet.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: February 22, 2022
    Assignees: CyberTAN Technology, Inc., National Chung Cheng University
    Inventors: Shi-Wei Lee, Chun-Yi Chen, Chung-Ho Wu, Wei-Ning Chang, Poyu Liu
  • Patent number: 11148245
    Abstract: The present invention provides a multi-degree-of-freedom error measurement system for rotary axes and the method thereof. By producing a first ray, a second ray, and a third ray, the multi-facet reflector and the axicon disposed on an axis average line can receive the first, the second, and the third rays, respectively, for producing a reflective ray, a refractive ray, a first emitted ray, and a second emitted ray. Thereby, errors of the axicon in a plurality of degrees of freedom caused by shift or vibration of the axis average line, such as the x-axis radial error, the y-axis radial error, the axial error, the x-axis tilt error, the tilt error for the y-axis, and the angular alignment error for rotation can be measured.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 19, 2021
    Assignee: National Chung Cheng University
    Inventors: Chien-Sheng Liu, Yu-Ta Chen, Yu-Xiang Lin
  • Patent number: 10983063
    Abstract: A biosensing system includes a biosensor, a light source, first and second photodetectors, and a calculator. The light source is disposed to irradiate the biosensor, so as to generate two or more of a coupled light beam, a reflected light beam, a transmitted light beam and a diffracted light beam. The first photodetector is disposed to measure an intensity of one of the generated light beams that is indicative of an effect of an analyte on light to obtain a first intensity value. The second photodetector is disposed to measure an intensity of another one of the generated light beams that is indicative of an effect of the analyte on light to obtain a second intensity value. The calculator performs compensation calculation based at least on the first and second intensity values.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: April 20, 2021
    Assignee: National Chung Cheng University
    Inventors: Wen-Hsin Hsieh, Hsun-Yuan Li, Yan-Chang Lee, Yu-Hsing Lai
  • Patent number: 10814548
    Abstract: An additive manufacturing method includes: providing a metal substrate; pressing a plurality of first metal parts to weld the same on the metal substrate one by one using a welding unit through friction welding so as to form a first stacked layer laminated on the metal substrate; pressing a plurality of second metal parts to weld the same on the first stacked layer one by one using the welding unit through friction welding so as to form a second stacked layer laminated on the first stacked layer; and repeating formation of the second stacked layer until a required amount of the second stacked layers are additively laminated on the first stacked layer to obtain a final three-dimensional (3D) article.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 27, 2020
    Assignee: National Chung Cheng University
    Inventor: Pai-Chen Lin
  • Patent number: 10805206
    Abstract: A method for rerouting traffic by a switch in a software defined networking (SDN) arrangement comprises an additional switch, multiple routing paths between the original switch and the additional switch being preconfigured by a SDN controller. The original switch collects network statistics by transmitting monitoring packets on each of the multiple routing paths and then calculating a round-trip time (RTT) value for each path on the return of the monitoring packets to the additional switch, the two switches functioning together as local controllers. After collection of network statistics from all the multiple routing paths, the original switch selects the routing path with the smallest RTT value and reroutes traffic accordingly.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: October 13, 2020
    Assignees: CyberTAN Technology, Inc., National Chung Cheng University
    Inventors: Poyu Liu, Wei-Ning Chang, Chung-Ho Wu, Shi-Wei Lee, Ting-Shan Wong