Patents by Inventor Chih Wen Hsu

Chih Wen Hsu 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: 20250039356
    Abstract: A video coding system that uses multiple models to predict chroma samples is provided. The video coding system receives data for a block of pixels to be encoded or decoded as a current block of a current picture of a video. The video coding system derives multiple prediction linear models based on luma and chroma samples neighboring the current block. The video coding system constructs a composite linear model based on the multiple prediction linear models. The video coding system applies the composite linear model to incoming or reconstructed luma samples of the current block to generate a chroma predictor of the current block. The video coding system uses the chroma predictor to reconstruct chroma samples of the current block or to encode the current block.
    Type: Application
    Filed: December 29, 2022
    Publication date: January 30, 2025
    Inventors: Chia-Ming TSAI, Chun-Chia CHEN, Yu-Ling HSIAO, Man-Shu CHIANG, Chih-Wei HSU, Olena CHUBACH, Tzu-Der CHUANG, Ching-Yeh CHEN, Yu-Wen HUANG
  • Patent number: 12204163
    Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.
    Type: Grant
    Filed: February 5, 2024
    Date of Patent: January 21, 2025
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Chia-Che Wu, Chien-Yu Kao, Hsiao-Hsin Hu, He-Ling Chang, Chao-Hsi Wang, Chen-Hsien Fan, Che-Wei Chang, Mao-Gen Jian, Sung-Mao Tsai, Wei-Jhe Shen, Yung-Ping Yang, Sin-Hong Lin, Tzu-Yu Chang, Sin-Jhong Song, Shang-Yu Hsu, Meng-Ting Lin, Shih-Wei Hung, Yu-Huai Liao, Mao-Kuo Hsu, Hsueh-Ju Lu, Ching-Chieh Huang, Chih-Wen Chiang, Yu-Chiao Lo, Ying-Jen Wang, Shu-Shan Chen, Che-Hsiang Chiu
  • Publication number: 20250024072
    Abstract: A method and apparatus for video coding system that uses intra prediction based on cross-colour linear model are disclosed. According to the method, model parameters for a first-colour predictor model are determined and the first-colour predictor model provides a predicted first-colour pixel value according to a combination of at least two corresponding reconstructed second-colour pixel values. According to another method, the first-colour predictor model provides a predicted first-colour pixel value based on a second degree model or higher of one or more corresponding reconstructed second-colour pixel values. First-colour predictors for the current first-colour block are determined according to the first-colour prediction model. The input data are then encoded at the encoder side or decoded at the decoder side using the first-colour predictors.
    Type: Application
    Filed: October 26, 2022
    Publication date: January 16, 2025
    Inventors: Olena CHUBACH, Ching-Yeh CHEN, Tzu-Der CHUANG, Chun-Chia CHEN, Man-Shu CHIANG, Chia-Ming TSAI, Yu-Ling HSIAO, Chih-Wei HSU, Yu-Wen HUANG
  • Patent number: 12189149
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: January 7, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang, Chih-Wen Hsu
  • Publication number: 20240027739
    Abstract: An imaging lens assembly includes a lens element and a light blocking element. The lens element is configured to define an optical axis, and the optical axis passes through the lens element. The light blocking element includes a light through hole and a plurality of light diminishing structures. The optical axis passes through the light through hole, the light through hole is formed by connecting a plurality of sidelines to define a polygonal contour. The light diminishing structures are regularly disposed along the polygonal contour, wherein the light diminishing structures are configured to undulate at least one portion of each of the sidelines, so that the at least one portion of each of the sidelines is a non-straight line.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Inventors: Chih-Wen HSU, Chen-Wei FAN, Ming-Ta CHOU
  • Publication number: 20230358992
    Abstract: An imaging lens assembly, having an optical axis, includes an imaging lens set and a lens holding member. The lens holding member accommodates the imaging lens set for aligning the imaging lens set with the optical axis. The lens holding member includes a plurality of light-blocking structures, which are disposed on an object side of the imaging lens set and surround the optical axis for forming a light passing hole. Each of the light-blocking structures is a straight-line shape and has two end points and one central point, and the central point is closer to the optical axis than each of the two end points thereto. A maximum radius of the light passing hole is defined by a position near each of the two end points, and a minimum radius thereof is defined by a position near the central point.
    Type: Application
    Filed: March 21, 2023
    Publication date: November 9, 2023
    Inventors: Chih-Wen HSU, Heng-Yi SU, Chun-Jui PAN, Ming-Ta CHOU
  • Publication number: 20230333291
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Inventors: Ming-Ta CHOU, Ming-Shun CHANG, Chih-Wen HSU
  • Publication number: 20230324645
    Abstract: An imaging lens assembly includes a plurality of optical lens elements, a single-piece-formed light blocking sheet and a lens barrel. The lens barrel has a circular light-passing hole corresponding to the plurality of optical lens elements and the single-piece-formed light blocking sheet. The single-piece-formed light blocking sheet has a central aperture corresponding to the lens barrel and the plurality of optical lens elements. A maximum aperture diameter is defined by the central aperture. The single-piece-formed light blocking sheet comprises a plurality of light blocking structures surrounding and disposed adjacent to the central aperture. A minimum inner radius of the central aperture is defined near the center of each of the light blocking structures.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 12, 2023
    Inventors: Chih-Wen HSU, Hsiu-Yi HSIAO, Ming-Ta CHOU
  • Patent number: 11719863
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: August 8, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang, Chih-Wen Hsu
  • Publication number: 20210041606
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Inventors: Ming-Ta CHOU, Ming-Shun CHANG, Chih-Wen HSU
  • Patent number: 10845507
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Grant
    Filed: January 19, 2019
    Date of Patent: November 24, 2020
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang, Chih-Wen Hsu
  • Patent number: 10830928
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: November 10, 2020
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chih-Wen Hsu, Ming-Ta Chou
  • Publication number: 20190383975
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Application
    Filed: September 2, 2019
    Publication date: December 19, 2019
    Inventors: Chih-Wen HSU, Ming-Ta CHOU
  • Patent number: 10444411
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 15, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chih-Wen Hsu, Ming-Ta Chou
  • Publication number: 20190227203
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Inventors: Chih-Wen HSU, Ming-Ta CHOU
  • Publication number: 20190154887
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Application
    Filed: January 19, 2019
    Publication date: May 23, 2019
    Inventors: Ming-Ta CHOU, Ming-Shun CHANG, Chih-Wen HSU
  • Patent number: 10288778
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 14, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chih-Wen Hsu, Ming-Ta Chou
  • Patent number: 10228497
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: March 12, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang, Chih-Wen Hsu
  • Publication number: 20180321427
    Abstract: An optical lens assembly includes at least two lens elements and at least one light blocking sheet. Each of the lens elements includes a connecting structure for aligning the two lens elements. Each of the connecting structures includes a connecting surface and a circular conical surface, and a receiving space is formed between the two lens elements. A vertical distance between the receiving space and an optical axis is shorter than a vertical distance between each circular conical surface and the optical axis. The light blocking sheet is received in the receiving space and has a polygonal opening, and an outside diameter of the light blocking sheet is smaller than or equal to a minimum diameter of each circular conical surface.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Chih-Wen HSU, Ming-Ta CHOU
  • Publication number: 20180246260
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Application
    Filed: June 28, 2017
    Publication date: August 30, 2018
    Inventors: Ming-Ta CHOU, Ming-Shun CHANG, Chih-Wen HSU