Patents by Inventor Chi Sun

Chi Sun 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).

  • Patent number: 12004296
    Abstract: A printed circuit board includes: an insulating member; a first wiring layer disposed in the insulating member, and including first and second pattern layers spaced apart from each other based on a thickness direction of the printed circuit board; and a second wiring layer disposed in the insulating member, and spaced apart from the first pattern layer over the first pattern layer based on the thickness direction. Based on the thickness direction, an insulation distance between the first pattern layer and the second pattern layer is smaller than an insulation distance between the first pattern layer and the second wiring layer, and each of the first and second pattern layers is thinner than the second wiring layer.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: June 4, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Uk Lee, Chi Won Hwang, Eun Sun Kim, Yong Wan Ji, Young Hun You
  • Publication number: 20240175839
    Abstract: Defect detection method for a semi-conducting bedding layer of a power cable includes: obtaining a length parameter, a corrugation pitch parameter, radius parameters, and a thickness parameter of a power cable; obtaining a first resistance value between a shield and a corrugated sheath, and calculating a second resistance value of the shield based on the length parameter and the corrugation pitch parameter; calculating a radial resistance value of the semi-conducting bedding layer based on the first resistance value and the second resistance value; determining a contact angle of a critical point of contact between the corrugated sheath and the semi-conducting bedding layer based on the radius parameters and the thickness parameter; calculating volume resistivity of the semi-conducting bedding layer based on the radial resistance value and the contact angle; and comparing the volume resistivity with a preset evaluation parameter to obtain a defect detection result of the semi-conducting bedding layer.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 30, 2024
    Inventors: Shengchen Fang, Pengxian Song, Xu Li, Yang Yu, Mingzheng Zhu, Zhengzheng Meng, Fengzheng Zhou, Xiaohui Zhu, Lei Yang, Jun Zhang, Chun He, Nan Wang, Ke Xu, Qinghua Tang, Chi Zhang, Haoming Wang, Longji Li, Cheng Sun, Wei Fan
  • Publication number: 20240151200
    Abstract: A remote controller is provided. The remote controller includes a motion sensing circuit and a wireless communication circuit electrically connected to the motion sensing circuit. The motion sensing circuit determines whether or not a motion of the remote controller complies with one of multiple reference motions. When the motion of the remote controller complies with one of the reference motions, the wireless communication circuit is switched from a sleep state to a working state. The wireless communication circuit that is in the working state determines whether or not a received signal strength indication between the remote controller and a controlled device is greater than or equal to a strength threshold. When the received signal strength indication is less than the strength threshold, the wireless communication circuit is switched from the working state to the sleep state.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: CHIA-HSIN WU, CHUI-SUNG PENG, CHU-CHI SUN, FU-MING KANG
  • Publication number: 20240142339
    Abstract: The present disclosure relates to metrology measurement systems, and related methods. In one or more embodiments a system, includes a substrate support, and an optical arm. The optical arm includes a light source operable to project a first beam on a first light path. The optical arm also includes a first lens, a first beam splitter, a second lens, a first detector, and an aperture. The first lens is disposed on the first light path and between the substrate support and the light source. The first beam splitter is disposed on the first light path. The first beam splitter is positioned between the substrate support and the light source. The first detector is disposed on the second light path. The second lens focuses the second beam to a second beam diameter. The aperture is disposed between the second lens and the first detector.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Inventors: Yangyang SUN, Jinxin FU, Ravi KOMANDURI, Chi-Yuan YANG
  • Publication number: 20240128653
    Abstract: Disclosed is a meta-structure. The meta-structure includes a lower electrode, a lower insulating layer on the lower electrode, a lower metal oxide layer on the lower insulating layer, a metal layer on the lower metal oxide layer, an upper metal oxide layer on the metal layer, an upper insulating layer on the upper metal oxide layer, and antenna electrodes on the upper insulating layer.
    Type: Application
    Filed: June 28, 2023
    Publication date: April 18, 2024
    Inventors: Yong Hae KIM, Chi-Sun HWANG, Joo Yeon KIM, Jaehyun MOON, Jong-Heon YANG, Kyunghee CHOI, Ji Hun CHOI
  • Patent number: 11946593
    Abstract: Provided is a grease injection system including a plurality of grease injection devices and a host. The grease injection devices uses control information to output lubricating grease, and output a plurality of pieces of status information. The host receives the pieces of status information from the grease injection devices, and generates the control information based on the pieces of status information.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: April 2, 2024
    Assignee: DORCAS SHIN CO., LTD
    Inventors: Ming-Tan Hsu, Xin-Xin Lin, Li-Hsiang Sun, Wen-Chi Hsieh
  • Patent number: 11939942
    Abstract: A remote controller, a remote-control system and a control method thereof are provided. The remote controller includes a motion sensing circuit and a wireless communication circuit electrically connected to the motion sensing circuit. The motion sensing circuit determines whether or not a motion of the remote controller complies with one of multiple reference motions. When the motion of the remote controller complies with one of the reference motions, the wireless communication circuit is switched from a sleep state to a working state. The wireless communication circuit that is in the working state determines whether or not a received signal strength indication between the remote controller and a controlled device is greater than or equal to a strength threshold. When the received signal strength indication is less than the strength threshold, the wireless communication circuit is switched from the working state to the sleep state.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 26, 2024
    Assignee: WISTRON NEWEB CORPORATION
    Inventors: Chia-Hsin Wu, Chui-Sung Peng, Chu-Chi Sun, Fu-Ming Kang
  • Publication number: 20240084107
    Abstract: A polymer composition comprises a polypropylene polymer and a salt of a branched alkyl phosphonic acid.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Darin Dotson, Xiaoyou XU, Hua Sun, Chi-Chun Tsai, Corey Williams
  • Publication number: 20240084259
    Abstract: The present invention relates to stem cell-derived mature cardiomyocytes and a cardiovascular disease model using same and, more specifically, to differentiation into mature ventricular cardiomyocytes by culturing stem cells in a medium containing FGF4 and ascorbic acid, and use of the differentiated mature ventricular cardiomyocytes as a cardiovascular disease cell model. The mature ventricular cardiomyocytes, obtained by culturing stem cells in a medium containing FGF4 and ascorbic acid and inducing the differentiation thereof, and cardiovascular disease cell model using same according to the present invention are very useful for screening for cardiovascular disease therapeutic agents and evaluation of the toxicity of new drugs.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 14, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Do-Sun LIM, Seung Cheol CHOI, Hyung Joon JOO, Jong-Ho KIM, Chi-Yeon PARK, Yongdoo PARK
  • Publication number: 20240079413
    Abstract: A complementary thin film transistor (TFT) includes a substrate and a first TFT and a second TFT disposed on the substrate, wherein a first conductive semiconductor layer of the first TFT and a second gate electrode layer of the second TFT are disposed in the same layer and include the same material.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 7, 2024
    Inventors: Himchan OH, Jong-Heon YANG, Ji Hun CHOI, Seung Youl KANG, Yong Hae KIM, Jeho NA, Jaehyun MOON, Chan Woo PARK, Sung Haeng CHO, Jae-Eun PI, Chi-Sun HWANG
  • Patent number: 11921383
    Abstract: Provided is a liquid crystal display device and a method for operating the liquid crystal display device. In the liquid crystal display device including a plurality of pixels, one pixel of the plurality of pixels includes a first sub pixel and a second sub pixel, which are adjacent to each other. The one pixel includes a first substrate, a first electrode provided on the first substrate, metamaterial layers provided on the first electrode, wherein the metamaterial layers include a first metamaterial layer within the first sub pixel and a second metamaterial layer within the second sub pixel, a liquid crystal layer provided on the first and second metamaterial layers, a second electrode provided on the liquid crystal layer, and a second substrate provided on the second electrode. The first and second metamaterial layers include metamaterials having properties different from each other, respectively.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: March 5, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong Hae Kim, Chi-Sun Hwang
  • Publication number: 20240073181
    Abstract: An method for expediting Virtual Local Area Network (VLAN) scanning for Dynamic Host Configuration Protocol (DHCP) server includes: transmitting, by a software tool, VLAN ethernet trunk frames including VLAN Identifier (ID) 1 to VLAN ID 4095, to an ethernet interface of a radio unit (RU), the ethernet interface being connected via an ethernet switch to a distributed unit (DU), wherein the DHCP server is located at the DU; selectively forwarding, by the ethernet switch to the DU, only a VLAN ethernet trunk frame having VLAN ID value X predefined by operator of the O-RAN system; selectively responding, by the DU, in response to receiving the VLAN ethernet trunk frame having VLAN ID value X, by sending a DHCP response message to the RU; and identifying, by the RU from the DHCP response message, the VLAN ID value X corresponding to the DHCP server.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Applicant: Mavenir Systems, Inc.
    Inventors: Chi Thanh Hoang, Aiqun Sun
  • Publication number: 20240061306
    Abstract: Disclosed is a meta-structure. The meta-structure includes a lower electrode, a lower insulating layer on the lower electrode, a lower metal oxide layer on the lower insulating layer, a lower metal layer on the lower metal oxide layer, a middle metal oxide layer on the lower metal layer, an upper metal layer on the middle metal oxide layer, an upper metal oxide layer on the upper metal layer, an upper insulating layer on the upper metal oxide layer, and antenna electrodes on the upper insulating layer.
    Type: Application
    Filed: June 27, 2023
    Publication date: February 22, 2024
    Inventors: Yong Hae KIM, Chi-Sun HWANG, Kyunghee CHOI, Joo Yeon KIM, Jaehyun MOON, Jong-Heon YANG, Ji Hun CHOI
  • Publication number: 20240034679
    Abstract: An eco-tile useful for promoting the growth of fauna and flora in an aquatic environment, the eco-tile including at least one type of cement; aggregates comprising at least two fine aggregates and coarse aggregates; and milled incineration sewage sludge ashes, wherein the at least two fine aggregates comprise dredged marine sediment, eco-concrete precursors thereof, and methods of use and preparation of the same.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 1, 2024
    Inventors: Kenneth Mei Yee LEUNG, Chi-sun POON, Juan Carlos ASTUDILLO PLACENCIA
  • Publication number: 20240029686
    Abstract: Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.
    Type: Application
    Filed: August 17, 2023
    Publication date: January 25, 2024
    Inventors: Gholamreza Chaji, Jackson Chi Sun Lai, Yaser Azizi, Maran Ran Ma
  • Publication number: 20240006516
    Abstract: An embodiment of the inventive concept provides a thin film transistor and a manufacturing method of the same. The manufacturing method includes forming a data electrode on one side of a substrate, forming a spacer layer on a portion of the data electrode and the other side of the substrate, forming a drain electrode on a top surface of the spacer layer, forming an active layer on a sidewall of the spacer layer, the drain electrode, and the data electrode, forming a gate insulation film that covers the active layer on the sidewall of the spacer layer, and forming a doped layer on the gate insulation film and the active layer outside the gate insulation film to form impurity regions at both sides, respectively, of the active layer.
    Type: Application
    Filed: May 22, 2023
    Publication date: January 4, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Hae KIM, Chi-Sun HWANG, Jong-Heon YANG
  • Patent number: 11832486
    Abstract: Provided are a semiconductor device, a display panel, and a display device including the same. The semiconductor device includes a lower electrode on one side of a substrate, a spacer on another side of the substrate, a middle electrode on the spacer, a lower channel layer on portions of a sidewall of the spacer, the middle electrode, and the lower electrode, a lower gate insulating layer on the lower channel layer, a common gate electrode on the gate insulating layer, an upper gate insulating layer on the common gate electrode, an upper electrode on the spacer and the upper gate insulating layer of the middle electrode, an upper channel layer connected to the upper electrode and disposed on a sidewall of the upper gate insulating layer, and a contact electrode connected to a portion of the upper channel layer and passing through the lower gate insulating layer and the upper gate insulating layer outside the common gate electrode so as to be connected to the lower electrode.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: November 28, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jong-Heon Yang, Seung Youl Kang, Yong Hae Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Chan Woo Park, Himchan Oh, Seong-Mok Cho, Sung Haeng Cho, Ji Hun Choi, Jae-Eun Pi, Chi-Sun Hwang
  • Patent number: 11790868
    Abstract: Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: October 17, 2023
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Jackson Chi Sun Lai, Yaser Azizi, Maran Ran Ma
  • Patent number: D1010656
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: January 9, 2024
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Chia-Chi Sun, Chun-Chieh Chen, Hao-Jen Fang, Po-Yang Chien, Sheng-Hung Lee
  • Patent number: D1014506
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: February 13, 2024
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Chia-Chi Sun, Chun-Chieh Chen, Hao-Jen Fang, Po-Yang Chien, Sheng-Hung Lee