Patents by Inventor Wei-Chieh Chang

Wei-Chieh Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240140765
    Abstract: An overhead hoist transfer apparatus includes a rail assembly including a straight rail having an empty section, and a curved rail having a curved empty section; an engine including a first LSD having first and second wheels at two sides respectively; and a second LSD having third and fourth wheels at two sides respectively; a moving carriage driven by the engine and suspended from the rail assembly; first and second guide wheels disposed on the first LSD; third and fourth guide wheels disposed on the second LSD; and two guide boards disposed above a joining point of the straight rail and the curved rail. An elevation of the guide boards is equal to that of the guide wheels. The guide board includes a straight edge and a curved edge.
    Type: Application
    Filed: September 27, 2023
    Publication date: May 2, 2024
    Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Caung-Yu Liu
  • Publication number: 20240116707
    Abstract: A powered industrial truck includes a lateral movement assembly including four sliding members and four pivotal members both on a wheeled carriage, four links having a first end pivotably secured to the sliding member and a second end pivotably secured to either end of the pivotal member, a motor shaft having two ends pivotably secured to the pivotal members respectively, a first electric motor on one frame member, and four mounts attached to the sliding members respectively; two lift assemblies including a second electric motor, a shaft having two ends rotatably secured to the sliding members respectively, two gear trains at the ends of the shaft respectively, a first gear connected to the second electric motor, a second gear on the shaft, and a first roller chain on the first and second gears; two electric attachments on the platform and being laterally moveable, each attachment. The mount has rollers.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 11, 2024
    Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Chung-Yu Liu
  • Publication number: 20240113143
    Abstract: Various embodiments of the present disclosure are directed towards an imaging device including a first image sensor element and a second image sensor element respectively comprising a pixel unit disposed within a semiconductor substrate. The first image sensor element is adjacent to the second image sensor element. A first micro-lens overlies the first image sensor element and is laterally shifted from a center of the pixel unit of the first image sensor element by a first lens shift amount. A second micro-lens overlies the second image sensor element and is laterally shifted from a center of the pixel unit of the second image sensor element by a second lens shift amount different from the first lens shift amount.
    Type: Application
    Filed: January 6, 2023
    Publication date: April 4, 2024
    Inventors: Cheng Yu Huang, Wen-Hau Wu, Chun-Hao Chuang, Keng-Yu Chou, Wei-Chieh Chiang, Chih-Kung Chang
  • Patent number: 11950491
    Abstract: A semiconductor mixed material comprises an electron donor, a first electron acceptor and a second electron acceptor. The first electron donor is a conjugated polymer. The energy gap of the first electron acceptor is less than 1.4 eV. At least one of the molecular stackability, ?-?*stackability, and crystallinity of the second electron acceptor is smaller than the first electron acceptor. The electron donor system is configured to be a matrix to blend the first electron acceptor and the second electron acceptor. The present invention also provides an organic electronic device including the semiconductor mixed material.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: April 2, 2024
    Assignee: RAYNERGY TEK INCORPORATION
    Inventors: Yi-Ming Chang, Chuang-Yi Liao, Wei-Long Li, Yu-Tang Hsiao, Chun-Chieh Lee, Chia-Hua Li, Huei-Shuan Tan
  • Publication number: 20240088182
    Abstract: In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Yu Huang, Chun-Hao Chuang, Chien-Hsien Tseng, Kazuaki Hashimoto, Keng-Yu Chou, Wei-Chieh Chiang, Wen-Chien Yu, Ting-Cheng Chang, Wen-Hau Wu, Chih-Kung Chang
  • Patent number: 11923386
    Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes a first photodetector disposed in a first pixel region of a semiconductor substrate and a second photodetector disposed in a second pixel region of the semiconductor substrate. The second photodetector is laterally separated from the first photodetector. A first diffuser is disposed along a back-side of the semiconductor substrate and over the first photodetector. A second diffuser is disposed along the back-side of the semiconductor substrate and over the second photodetector. A first midline of the first pixel region and a second midline of the second pixel region are both disposed laterally between the first diffuser and the second diffuser.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: March 5, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Keng-Yu Chou, Chun-Hao Chuang, Kazuaki Hashimoto, Wei-Chieh Chiang, Cheng Yu Huang, Wen-Hau Wu, Chih-Kung Chang
  • Publication number: 20220055331
    Abstract: A shaping apparatus for shaping a workpiece includes a controlling module and a pressing module, a moving module, a sensing module and a shaping calculation module that are connected to the controlling module. The pressing module includes two pressing elements respectively applying load to a top/bottom surface of the workpiece. The moving module includes a moving platform moving the workpiece horizontally between a sensing zone and a processing zone. The sensing module performs a capturing process on the workpiece in the sensing zone to obtain a surface information. The shaping calculation module compares the surface information with an ideal shape data to calculate and get a shaping information. The moving platform moves the workpiece to the sensing zone. The sensing module performs a capturing process on the workpiece. The moving platform moves the workpiece to the processing zone. The pressing module performs a shaping treatment on the workpiece.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 24, 2022
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Huang SHIEH, Po-Nien TSOU, Hsuan-Yu HUANG, Wei-Chieh CHANG
  • Patent number: 10961100
    Abstract: A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 30, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE H
    Inventors: Chang-Min Lin, Wei-Chieh Chang, Hsuan-Yu Huang
  • Patent number: 10780439
    Abstract: A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 22, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chang-Min Lin, Wei-Chieh Chang, Hsuan-Yu Huang
  • Patent number: 10701858
    Abstract: A mobile vehicle, a ground treating equipment and an orientation adjusting method thereof are provided. The ground treating equipment includes a frame, a ground treating unit, a connecting rod set, a connecting rod driving unit, a rotation driving unit, two pressure sensors and a controller. The ground treating unit is mounted at the frame. Two ends of the connecting rod set are connected to the frame and the mobile vehicle. The connecting rod driving unit is mounted at the connecting rod set for adjusting the orientation of the connecting rod set. The rotation driving unit is mounted between the frame and the connecting rod set for driving the frame to rotate relative to the connecting rod set. The pressure sensors are mounted at the frame for sensing two pressure values between the frame and ground, or the pressure sensors are mounted at the rotation driving unit for sensing two pressure values while the frame is driven to rotate clockwise and counter-clockwise.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 7, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Yun-Sheng Ku, Yi-Tien Yan, Jiun-Hua Li, Shu-Hui Yang, Wei-Chieh Chang, Ling-Yu Tsai
  • Publication number: 20200070149
    Abstract: A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 5, 2020
    Inventors: CHANG-MIN LIN, Wei-Chieh Chang, Hsuan-Yu Huang
  • Publication number: 20200071148
    Abstract: A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.
    Type: Application
    Filed: March 28, 2019
    Publication date: March 5, 2020
    Inventors: CHANG-MIN LIN, WEI-CHIEH CHANG, HSUAN-YU HUANG
  • Publication number: 20190174672
    Abstract: A mobile vehicle, a ground treating equipment and an orientation adjusting method thereof are provided. The ground treating equipment includes a frame, a ground treating unit, a connecting rod set, a connecting rod driving unit, a rotation driving unit, two pressure sensors and a controller. The ground treating unit is mounted at the frame. Two ends of the connecting rod set are connected to the frame and the mobile vehicle. The connecting rod driving unit is mounted at the connecting rod set for adjusting the orientation of the connecting rod set. The rotation driving unit is mounted between the frame and the connecting rod set for driving the frame to rotate relative to the connecting rod set. The pressure sensors are mounted at the frame for sensing two pressure values between the frame and ground, or the pressure sensors are mounted at the rotation driving unit for sensing two pressure values while the frame is driven to rotate clockwise and counter-clockwise.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 13, 2019
    Applicant: Industrial Technology Research Institute
    Inventors: Yun-Sheng Ku, Yi-Tien Yan, Jiun-Hua Li, Shu-Hui Yang, Wei-Chieh Chang, Ling-Yu Tsai
  • Patent number: 10260870
    Abstract: An on-line measuring system, a datum calibrating method, a deviation measuring method and a computer-readable medium are provided. The datum calibrating method includes following steps. A work piece is scanned by a scanning unit to obtain a global point cloud data. A local CAD data of the work piece is obtained according to a predetermined range. A local CAD geometric feature of the local CAD data is obtained. A local point cloud data of the global point cloud data is obtained according to a local range corresponding to the predetermined range. A local scanning geometric feature of the local point cloud data is obtained. The local scanning geometric feature and the local CAD geometric feature are compared to obtain at least one spatial freedom limit. A system basis is obtained according to six spatial freedom limits, if the number of the at least one spatial freedom limit reaches six.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 16, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Huang Shieh, Po-Nien Tsou, Wei-Chieh Chang, Ming-Cheng Tsai
  • Publication number: 20190086199
    Abstract: An on-line measuring system, a datum calibrating method, a deviation measuring method and a computer-readable medium are provided. The datum calibrating method includes following steps. A work piece is scanned by a scanning unit to obtain a global point cloud data. A local CAD data of the work piece is obtained according to a predetermined range. A local CAD geometric feature of the local CAD data is obtained. A local point cloud data of the global point cloud data is obtained according to a local range corresponding to the predetermined range. A local scanning geometric feature of the local point cloud data is obtained. The local scanning geometric feature and the local CAD geometric feature are compared to obtain at least one spatial freedom limit. A system basis is obtained according to six spatial freedom limits, if the number of the at least one spatial freedom limit reaches six.
    Type: Application
    Filed: December 27, 2017
    Publication date: March 21, 2019
    Inventors: Po-Huang SHIEH, Po-Nien TSOU, Wei-Chieh CHANG, Ming-Cheng TSAI
  • Patent number: 9094197
    Abstract: An energy efficient Ethernet physical layer (PHY) device including an EEE control module configured to generate a control signal to transition the PHY device into a low power consumption mode based an operating condition, and a pause frame generator module responsive to the control signals to generate a pause frame. The pause frame generator module is configured to send the pause frame to a media access control (MAC) device to reduce an incoming flow of data packets from the MAC device to the PHY device for a pause time duration. In operation, the pause frame generator module generates the pause frame including a pause time indicating the length of time for the PHY device to be in the low power consumption mode. The value of the pause time for each pause frame is determined adaptively based on the type of data traffic to be transmitted from the PHY device.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 28, 2015
    Assignee: Micrel, Inc.
    Inventors: Wei-Chieh Chang, Wei-Chi Lo, Charng-Show Li, Menping Chang
  • Publication number: 20150163045
    Abstract: An energy efficient Ethernet physical layer (PHY) device including an EEE control module configured to generate a control signal to transition the PHY device into a low power consumption mode based an operating condition, and a pause frame generator module responsive to the control signals to generate a pause frame. The pause frame generator module is configured to send the pause frame to a media access control (MAC) device to reduce an incoming flow of data packets from the MAC device to the PHY device for a pause time duration. In operation, the pause frame generator module generates the pause frame including a pause time indicating the length of time for the PHY device to be in the low power consumption mode. The value of the pause time for each pause frame is determined adaptively based on the type of data traffic to be transmitted from the PHY device.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 11, 2015
    Inventors: Wei-Chieh Chang, Wei-Chi Lo, Charng-Show Li, Menping Chang
  • Patent number: 8942144
    Abstract: An energy efficient Ethernet physical layer (PHY) device including an EEE control module configured to generate a control signal to transition the PHY device into a low power consumption mode based an operating condition, and a pause frame generator module responsive to the control signals to generate a pause frame. The pause frame generator module is configured to send the pause frame to a media access control (MAC) device to reduce an incoming flow of data packets from the MAC device to the PHY device for a pause time duration. In operation, the pause frame generator module generates the pause frame including a pause time indicating the length of time for the PHY device to be in the low power consumption mode. The value of the pause time for each pause frame is determined adaptively based on the amount of data traffic to be transmitted from the PHY device.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: January 27, 2015
    Assignee: Micrel, Inc.
    Inventors: Wei-Chieh Chang, Wei-Chi Lo, Charng-Show Li, Menping Chang
  • Publication number: 20120287829
    Abstract: An energy efficient Ethernet physical layer (PHY) device including an EEE control module configured to generate a control signal to transition the PHY device into a low power consumption mode based an operating condition, and a pause frame generator module responsive to the control signals to generate a pause frame. The pause frame generator module is configured to send the pause frame to a media access control (MAC) device to reduce an incoming flow of data packets from the MAC device to the PHY device for a pause time duration. In operation, the pause frame generator module generates the pause frame including a pause time indicating the length of time for the PHY device to be in the low power consumption mode. The value of the pause time for each pause frame is determined adaptively based on the amount of data traffic to be transmitted from the PHY device.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Applicant: MICREL, INC.
    Inventors: Wei-Chieh Chang, Wei-Chi Lo, Charng-Show Li, Menping Chang
  • Patent number: D1018526
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 19, 2024
    Assignee: Dell Products L.P.
    Inventors: Wei-Yi Li, Chih-Chieh Chang