Patents by Inventor Chao-Chang Hu

Chao-Chang Hu 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: 11036028
    Abstract: A lens driving mechanism is provided, including a lens holder for holding a lens, a circuit board disposed at one side of the lens holder, a driving element, a position sensing element and an integrated circuit module. The position sensing element and the integrated circuit module are disposed on the circuit board, wherein the integrated circuit module includes a driving circuit unit electrically connected to the driving element, to move the lens holder relative to the circuit board.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 15, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Che-Ju Lan, Hung-Chun Chen
  • Publication number: 20210173171
    Abstract: An optical element driving mechanism has an optical axis and includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The driving assembly moves in a first direction to move the movable portion in a second direction, wherein the first direction is different from the second direction.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Jungsuck RYOO, Chieh-An CHANG, Min-Hsiu TSAI, Chao-Chang HU, Shu-Shan CHEN, Pai-Jui CHENG, Chao-Hsi WANG
  • Patent number: 11032472
    Abstract: An image-capturing device uses a light reflecting member to redirect an exterior light image toward a lens module in order to focus the light image onto an image-capturing unit. The image-capturing device includes a rotating unit for driving the light-reflecting member to rotate within a limited range in such a manner that the image-capturing device can capture at least two light images of different photo-ing areas and combine them into one single combined image without a need of moving the image-capturing unit and the lens module. When a user takes a panoramic or wide-ranged picture, he/she doesn't need to move the whole image-capturing device, but only needs to stand at the same position, faces the same direction and simply pushes the shutter button, and then the image-capturing device will automatically capture light images of different photo-ing areas and then integrate them into one single panoramic or wide-ranged picture.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: June 8, 2021
    Inventors: Chao Chang Hu, Chih Wei Weng
  • Patent number: 11029453
    Abstract: The present invention relates to an optical system, including a fixed portion, a movable portion, an aperture unit and a first driving assembly. The movable portion is movably connected to the fixed portion and used to hold an optical element. The aperture unit is disposed on the movable portion and corresponds to the optical element. The first driving assembly is disposed in the fixed portion to drive the movable portion to move relative to the fixed portion.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 8, 2021
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Che-Wei Chang, Liang-Ting Ho, Sin-Jhong Song, Hsin-Yen Wu
  • Publication number: 20210167662
    Abstract: The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When a current is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Inventors: Chao-Chang HU, Che-Wei CHANG
  • Publication number: 20210156968
    Abstract: A distance measuring device for measuring the distance to an object is provided, including a light-emitting module, a driving assembly disposed in the light-emitting module, and a light-receiving module. The light-emitting module has a housing, a light source disposed in the housing, a light grating element, and an optical path adjuster. The light source emits a measuring light through the optical path adjuster and the light grating element. The driving assembly can drive the optical path adjuster or the light grating element to move relative to the housing. The light-receiving module receives the measuring light which is reflected by the object to obtain distance information of the object.
    Type: Application
    Filed: December 15, 2020
    Publication date: May 27, 2021
    Inventors: Shu-Shan CHEN, Chao-Chang HU, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20210157036
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and at least three damping materials. The movable portion is configured to connect an optical member that has an optical axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The damping materials are located on an imaginary plane, and the imaginary plane is parallel to the optical axis.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Chen-Hsien FAN, Chao-Chang HU
  • Publication number: 20210149143
    Abstract: The present disclosure provides an optical element driving mechanism, which includes a movable assembly, a fixed assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element. The movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly in a range of motion. The optical element driving mechanism further includes a positioning assembly configured to position the movable assembly at a predetermined position relative to the fixed assembly when the driving assembly is not operating.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Inventors: Chao-Chang HU, Kuen-Wang TSAI, Liang-Ting HO, Chao-Hsi WANG, Chih-Wei WENG, He-Ling CHANG, Che-Wei CHANG, Sheng-Zong CHEN, Ko-Lun CHAO, Min-Hsiu TSAI, Shu-Shan CHEN, Jungsuck RYOO, Mao-Kuo HSU, Guan-Yu SU
  • Publication number: 20210149211
    Abstract: A lens driving mechanism is provided. The lens driving mechanism is configured to drive an optical lens, including a holder, a base, a first elastic element, and a first biasing element. The optical lens is disposed in a receiving space of the holder. The base has a central axis, and the holder is movable relative to the base. The first elastic element is connected to the holder and the base. The first biasing element exerts a force on the holder so that an optical axis of the optical lens has an angular displacement relative to the central axis.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Yi-Liang CHAN
  • Publication number: 20210143720
    Abstract: A vibration module is provided, having a main axis passing through the center of the vibration module, including a fixed part and a first vibration part. The first vibration part is disposed within the fixed part. The first vibration part includes a first moving member and a first driving assembly. The first driving assembly drives the first moving member to move relative to the fixed part.
    Type: Application
    Filed: August 28, 2020
    Publication date: May 13, 2021
    Inventors: Chao-Chang HU, Liang-Ting HO, Che-Wei CHANG
  • Publication number: 20210143718
    Abstract: A vibration module is provided, having a main axis passing through the center of the vibration module. The vibration module includes a fixed part and a first vibration part. The first vibration part is disposed within the fixed part. The first vibration part includes a first moving member and a first driving assembly. The first driving assembly drives the first moving member to move along the main axis relative to the fixed part.
    Type: Application
    Filed: August 28, 2020
    Publication date: May 13, 2021
    Inventors: Chao-Chang HU, Liang-Ting HO, Che-Wei CHANG
  • Patent number: 11002941
    Abstract: A calibration method of an optical system is provided, wherein the optical system includes a movable element that can move within an operation interval. The calibration method includes the step of establishing a relationship between the operation interval and an electrical signal coding sequence. The calibration method further includes the step of establishing a relationship between the operation interval and a sensing signal coding sequence.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 11, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Yi-Chun Cheng, Chao-Chang Hu, Che-Wei Chang, Chih-Wen Chiang, Tsung-Tung Li, Sin-Jhong Song
  • Publication number: 20210132360
    Abstract: An optical system is provided. The optical system includes a first optical module and a second optical module. The first optical module is used for connected to a first optical element. The second optical module is used for connected to a second optical element. A light enters the first optical module along an incident direction, and the light is adjusted by the first optical module to enter the second optical module along a first direction. The incident direction is not parallel with the first direction.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Jungsuck RYOO, Chao-Chang HU, Shu-Shan CHEN, Min-Hsiu TSAI, Chieh-An CHANG
  • Publication number: 20210132319
    Abstract: An optical element driving mechanism has an optical axis and includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion, wherein the driving assembly moves along a first direction to move the movable portion along a second direction, the first direction is different from the second direction.
    Type: Application
    Filed: June 12, 2020
    Publication date: May 6, 2021
    Inventors: Chao-Chang HU, Shu-Shan CHEN, Jungsuck RYOO, Min-Hsiu TSAI, Chieh-An CHANG, Pai-Jui CHENG
  • Publication number: 20210132328
    Abstract: A driving mechanism is provided, including a polygonal base unit, a holder, a first driving assembly, a sensing magnet, and a magnetic field sensor. The polygonal base unit includes a substrate and a circuit board disposed on the substrate. The holder is movably connected to the base unit, wherein the holder is configured to hold an optical element that defines an optical axis. The first driving assembly is configured to drive the holder to move relative to the base unit. The sensing magnet is disposed on the holder. The magnetic field sensor is configured to detect the sensing magnet, wherein the magnetic field sensor is accommodated in a recess of the substrate.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Chao-Chang HU, Liang-Ting HO, Sin-Jhong SONG
  • Patent number: 10996484
    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, a sensing unit and a driving assembly. The fixed module includes an outer frame, and the movable module includes an optical member holder, configured to hold an optical member. The sensing unit is configured to obtain information related to a first rotation angle of the optical member holder when rotating around a first axis relative to the outer frame and a second rotation angle of the optical member holder when rotating around a second axis relative to the outer frame. The driving assembly is for driving the optical member holder to rotate around the first axis or the second axis according to the information related to the first rotation angle and the second rotation angle. The first axis or the second axis is perpendicular to an optical axis of the optical member.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: May 4, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Cheng-Kai Yu
  • Publication number: 20210124144
    Abstract: An optical element driving mechanism includes a fixed portion, a movable portion, a driving assembly, and a circuit assembly. The movable portion is connected to the optical element and is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The circuit assembly is connected to the driving assembly. The driving assembly is electrically connected to an external circuit via the circuit assembly.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 29, 2021
    Inventors: Yi-Ho CHEN, Chen-Hsin HUANG, Chao-Chang HU, Chen-Chi KUO, Ying-Jen WANG, Ya-Hsiu WU, Sin-Jhong SONG, Che-Hsiang CHIU, Kuen-Wang TSAI, Mao-Kuo HSU, Tun-Ping HSUEH, I-Hung CHEN, Chun-Chia LIAO, Wei-Zhong LUO, Wen-Chang LIN
  • Patent number: 10989895
    Abstract: A driving module is provided. The driving module includes a sensor module, a holder and at least three positioning components. The holder corresponds to the sensor module and is for holding an optical element. The positioning components are disposed between the sensor module and the holder.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 27, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Shao-Kuang Huang
  • Patent number: 10983302
    Abstract: A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 20, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song, Chih-Wei Weng, Shu-Shan Chen
  • Publication number: 20210109315
    Abstract: A lens driving mechanism is provided, including a bottom plate, a housing, connected to the bottom plate, a movable portion movably received between the housing and the bottom plate, and a biasing assembly connecting the bottom plate to the base of the movable portion. The movable portion includes a frame, a holder, and a base, wherein the holder is received in the frame and configured to sustain the optical lens, and the base is connected to the frame and the holder. The biasing assembly connects the bottom plate to the base of the movable portion, wherein when viewed in a direction perpendicular to the optical axis, the base and the biasing assembly partially overlap.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Chen-Chi KUO, Chao-Chang HU, Sin-Jhong SONG