Patents by Inventor Kai-An CHUANG

Kai-An CHUANG 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: 11521882
    Abstract: An optical system may include a light source to provide a beam of light. The optical system may include a reflector to receive and redirect the beam of light. The optical system may include a light gate having an opening to permit the beam of light, from the reflector, to travel through the opening. The optical system may include a light sensor to receive a portion of the beam of light after the beam of light travels through the opening, and convert the portion of the beam of light to a signal. The optical system may include a processing device to determine whether a notch of a wafer is in an allowable position based on the signal.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 6, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kai-An Chuang, Kuang-Wei Hsueh, Shih-Huan Chen, Yung-Shu Kao
  • Publication number: 20220365608
    Abstract: A calibration method and a calibration apparatus for a knob applicable to a touch panel are provided. The knob includes at least one sensing pad. The calibration method includes: obtaining sensed position(s) of each sensing pad by sensing a position of the sensing pad through the touch panel; and calculating a position of a center of the knob by using a formula of a radius of a circumscribed circle according the sensed position(s) of each sensing pad.
    Type: Application
    Filed: November 21, 2021
    Publication date: November 17, 2022
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chun-Jen Su, Cheng-Hung Tsai, Po-Hsuan Huang, Chun-Kai Chuang
  • Patent number: 11501531
    Abstract: A computing device captures a live video of a user. For a first frame of the live video, the computing device obtains first target positional coordinates of a first target point located a first predetermined distance from the computing device and obtains first background data. For a second frame, the computing device obtains second target positional coordinates of a second target point located a second predetermined distance from the computing device and obtains second background data. The computing device calculates a target motion vector based on the first target point and the second target point and calculates a background motion vector based on feature points in the first background data and the second background data. The computing device determines a difference value between the target motion vector and the background motion vector and determines whether the user is spoofing the computing device based on the difference value.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 15, 2022
    Assignee: CYBERLINK CORP.
    Inventors: Fu-Kai Chuang, Sheng-Hung Liu
  • Patent number: 11491134
    Abstract: A composition for inhibiting skin cell proliferation and/or anti-inflammation is provided. The composition for inhibiting skin cell proliferation and/or anti-inflammation includes: apigenin and luteolin, wherein a weight ratio of the apigenin to the luteolin is about 1.5-25:1, or a mole ratio of the apigenin to the luteolin is about 1.5-25:1. Moreover, the apigenin and the luteolin have a synergistic effect on inhibiting skin cell proliferation and/or anti-inflammation.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: November 8, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: I-Hong Pan, Ming-Han Li, Kai-An Chuang, Shu-Fang Wen
  • Publication number: 20220339137
    Abstract: A composition for inhibiting skin cell proliferation and/or anti-inflammation is provided. The composition for inhibiting skin cell proliferation and/or anti-inflammation includes: apigenin and luteolin, wherein a weight ratio of the apigenin to the luteolin is about 1.5-25:1, or a mole ratio of the apigenin to the luteolin is about 1.5-25:1. Moreover, the apigenin and the luteolin have a synergistic effect on inhibiting skin cell proliferation and/or anti-inflammation.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Applicant: Industrial Technology Research Institute
    Inventors: I-Hong PAN, Ming-Han LI, Kai-An CHUANG, Shu-Fang WEN
  • Patent number: 11467687
    Abstract: A touch display apparatus is disclosed, which includes a touch display panel and a driving circuit coupled to the touch display panel. The touch display panel is configured for display and touch sensing, and includes plural touch sensing pads. The driving circuit is configured to provide a voltage signal with a test pattern to the touch sensing pads, and is configured to determine whether an open circuit or a short circuit exists in the touch display panel from a detected signal in response to the voltage signal.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: October 11, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chun-Kai Chuang, Yu-Ming Liao, Pei-Yuan Hung, Yu-Hsiang Lin
  • Patent number: 11460947
    Abstract: A touch screen includes a touch panel including a plurality of touch blocks, and a knob, being touch-sensitive and rotatable, disposed on top of the touch panel. An area of the touch panel not covered with the knob is defined as a first area, an area of the touch panel covered with the knob is defined as a second area, and touch blocks belonging to both the first area and the second area are defined as overlapped blocks. Sense signals associated with the overlapped blocks are de-emphasized.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: October 4, 2022
    Assignee: Himax Technologies Limited
    Inventors: Chun-Jen Su, Chun-Kai Chuang, Cheng-Hung Tsai, Po-Hsuan Huang, Li-Lin Liu, Heng-Xiao Chen
  • Publication number: 20220307654
    Abstract: Main technical features of a sealing mechanism of a pressure vessel provided by the invention are a sealing unit for airtightly combining with the vessel, and a combination unit for positioning the sealing unit in the airtight combination state, and there are common structures disposed between constituent elements of the sealing unit and the combination unit, so that the sealing unit and the combination unit can be combined with each other in order to facilitate use and storage and to avoid losing or missing parts.
    Type: Application
    Filed: March 10, 2022
    Publication date: September 29, 2022
    Inventors: Cheng-Wei LAI, Fu-Kai CHUANG
  • Patent number: 11416089
    Abstract: A knob device is applicable to a touch panel. The knob device includes a knob cover, a plurality of sensing pads and a rotation sensing element. The plurality of sensing pads are fixedly arranged on the touch panel. A gap is form between two sensing pads. The plurality of sensing pads and gaps are distributed in a ring area around a center of an orthographic projection of the knob cover. The rotation sensing element is connected to the knob cover. When the knob cover is turned to be rotated, the rotation sensing element is rotated synchronously. When a user touches the knob device and the rotation sensing element overlaps one of the plurality of sensing pads, the touch panel generates a rotation sensing signal in response to a location of the rotation sensing element.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: August 16, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chun-Jen Su, Chun-Kai Chuang, Heng-An Hsu, Wai-Pan Wu, Cheng-Hung Tsai
  • Publication number: 20220244611
    Abstract: An electrophoretic display device includes a backplane structure, a buffer layer, a spacer wall, a display medium, an upper substrate and an upper electrode. The backplane structure includes a lower substrate, a transistor formed on the lower substrate, and a lower electrode electrically connected to the transistor. The buffer layer is disposed on the backplane structure. The spacer wall is disposed on the buffer layer and forms a closed pattern. The display medium is disposed in the closed pattern. The display medium includes an electrophoretic medium and a plurality of electrophoretic particles dispersed in the electrophoretic medium. The upper substrate is disposed on the spacer wall and the display medium. The upper electrode is disposed between the upper substrate and the spacer wall.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 4, 2022
    Applicant: E Ink Holdings Inc.
    Inventors: Shu-Fen TSAI, Hsien-Yi HSIAO, Ming-Kai CHUANG, Puru Howard SHIEH
  • Publication number: 20220066586
    Abstract: A touch display apparatus is disclosed, which includes a touch display panel and a driving circuit coupled to the touch display panel. The touch display panel is configured for display and touch sensing, and includes plural touch sensing pads. The driving circuit is configured to provide a voltage signal with a test pattern to the touch sensing pads, and is configured to determine whether an open circuit or a short circuit exists in the touch display panel from a detected signal in response to the voltage signal.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 3, 2022
    Inventors: Chun-Kai Chuang, Yu-Ming Liao, Pei-Yuan Hung, Yu-Hsiang Lin
  • Publication number: 20220059381
    Abstract: An optical system may include a light source to provide a beam of light. The optical system may include a reflector to receive and redirect the beam of light. The optical system may include a light gate having an opening to permit the beam of light, from the reflector, to travel through the opening. The optical system may include a light sensor to receive a portion of the beam of light after the beam of light travels through the opening, and convert the portion of the beam of light to a signal. The optical system may include a processing device to determine whether a notch of a wafer is in an allowable position based on the signal.
    Type: Application
    Filed: August 20, 2020
    Publication date: February 24, 2022
    Inventors: Kai-An CHUANG, Kuang-Wei HSUEH, Shih-Huan CHEN, Yung-Shu KAO
  • Publication number: 20220019295
    Abstract: A knob device is applicable to a touch panel. The knob device includes a knob cover; and a rotation sensing element. The rotation sensing element includes a base and a plurality of sensing pads connected to the knob cover. The rotation sensing element is arranged between the touch panel and the knob cover. The base is connected to the knob cover. When a user touches the knob device, the touch panel generates a rotation sensing signal in response to a location of the plurality of sensing pads. An orthographic projection of the knob cover on the touch panel is divided into a plurality of parts, the plurality of parts are distributed radially from a center of the orthographic projection of the knob cover, each sensing pad is located in a part and connected to another sensing pad located in another part adjacent to the part.
    Type: Application
    Filed: January 27, 2021
    Publication date: January 20, 2022
    Inventors: Chun-Jen Su, Chun-Kai Chuang, Cheng-Hung Tsai, Wai-Pan Wu
  • Publication number: 20220019297
    Abstract: A knob device is applicable to a touch panel. The knob device includes a knob cover, a plurality of sensing pads and a rotation sensing element. The plurality of sensing pads are fixedly arranged on the touch panel. A gap is form between two sensing pads. The plurality of sensing pads and gaps are distributed in a ring area around a center of an orthographic projection of the knob cover. The rotation sensing element is connected to the knob cover. When the knob cover is turned to be rotated, the rotation sensing element is rotated synchronously. When a user touches the knob device and the rotation sensing element overlaps one of the plurality of sensing pads, the touch panel generates a rotation sensing signal in response to a location of the rotation sensing element.
    Type: Application
    Filed: February 16, 2021
    Publication date: January 20, 2022
    Inventors: Chun-Jen Su, Chun-Kai Chuang, Heng-An Hsu, Wai-Pan Wu, Cheng-Hung Tsai
  • Patent number: 11226692
    Abstract: A knob device is applicable to a touch panel. The knob device includes a knob cover; and a rotation sensing element. The rotation sensing element includes a base and a plurality of sensing pads connected to the knob cover. The rotation sensing element is arranged between the touch panel and the knob cover. The base is connected to the knob cover. When a user touches the knob device, the touch panel generates a rotation sensing signal in response to a location of the plurality of sensing pads. An orthographic projection of the knob cover on the touch panel is divided into a plurality of parts, the plurality of parts are distributed radially from a center of the orthographic projection of the knob cover, each sensing pad is located in a part and connected to another sensing pad located in another part adjacent to the part.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: January 18, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chun-Jen Su, Chun-Kai Chuang, Cheng-Hung Tsai, Wai-Pan Wu
  • Patent number: D948664
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: April 12, 2022
    Assignee: JEN SIAN INDUSTRIAL CO., LTD.
    Inventors: Cheng-Wei Lai, Fu-Kai Chuang
  • Patent number: D962221
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: August 30, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chee-Chun Leung, Wen-Hung Tsai, Chang-Ta Miao, Gwo-Chyuan Chen, Chih-Kang Ting, Shun-Kai Chuang
  • Patent number: D962222
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: August 30, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chee-Chun Leung, Wen-Hung Tsai, Chang-Ta Miao, Gwo-Chyuan Chen, Chih-Kang Ting, Shun-Kai Chuang
  • Patent number: D962223
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: August 30, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chee-Chun Leung, Wen-Hung Tsai, Chang-Ta Miao, Gwo-Chyuan Chen, Chih-Kang Ting, Shun-Kai Chuang
  • Patent number: D962921
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: September 6, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chee-Chun Leung, Wen-Hung Tsai, Chang-Ta Miao, Gwo-Chyuan Chen, Chih-Kang Ting, Shun-Kai Chuang