Patents by Inventor Kai-Jung Chang

Kai-Jung 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: 20240070824
    Abstract: The present disclosure discloses an image processing circuit having output timing adjustment mechanism. An image enhancement circuit performs image enhancement on an input image to generate an enhanced image. A first image processing path and a second image processing path respectively perform processing on the enhanced image having a first timing and the enhanced image having a second timing to generate a first output image and a second output image. A timing control circuit adjusts the timing of the enhanced image according to requirements of the first image processing path and the second image processing path to generate the enhanced image having the first timing and the enhanced image having the second timing. A first image output interface outputs the first output image. A second image output interface outputs the second output image.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 29, 2024
    Inventors: TZU-MIN YEH, KAI-CHO CHANG, PO-HSIEN WU, HSU-JUNG TUNG
  • Patent number: 11128949
    Abstract: A passive radiator includes a frame, a vibrating member, a surround and a plurality of strengthening ribs. The vibrating member is disposed in the frame. The surround includes a first arc portion and a second arc portion. The first arc portion is connected to the frame. The second arc portion is connected to the vibrating member. The first arc portion and the second arc portion are connected to form an S shape. The strengthening ribs are connected to the first arc portion and the second arc portion. A thickness of the strengthening rib corresponding to the first arc portion is larger than a thickness of the strengthening rib corresponding to the second arc portion. Furthermore, the passive radiator may include a plurality of reinforcing ribs connected to the first arc portion. Moreover, a thickness of the first arc portion may be larger than a thickness of the second arc portion.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 21, 2021
    Assignee: Qisda Corporation
    Inventors: Kai-Jung Chang, Chih-Hung Lin
  • Publication number: 20200228892
    Abstract: A passive radiator includes a frame, a vibrating member, a surround and a plurality of strengthening ribs. The vibrating member is disposed in the frame. The surround includes a first arc portion and a second arc portion. The first arc portion is connected to the frame. The second arc portion is connected to the vibrating member. The first arc portion and the second arc portion are connected to form an S shape. The strengthening ribs are connected to the first arc portion and the second arc portion. A thickness of the strengthening rib corresponding to the first arc portion is larger than a thickness of the strengthening rib corresponding to the second arc portion. Furthermore, the passive radiator may include a plurality of reinforcing ribs connected to the first arc portion. Moreover, a thickness of the first arc portion may be larger than a thickness of the second arc portion.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 16, 2020
    Inventors: Kai-Jung Chang, Chih-Hung Lin
  • Publication number: 20090061960
    Abstract: A folding mobile phone includes a main body including a first housing, and a processing unit installed inside the first housing for controlling operation of the folding mobile phone. The folding mobile phone further includes a display module pivoted to the main body in a foldable manner. The display module includes a second housing. The folding mobile phone further includes a panel connected to a first side of the first housing and a first side of the second housing in a rotatable manner. When the display module rotates to a first position relative to the main body, the first housing and the second housing shield the panel together, and when the display module rotates to a second position relative to the main body, at least part of the panel exposes out of the first housing and the second housing.
    Type: Application
    Filed: August 15, 2008
    Publication date: March 5, 2009
    Inventors: Kai-Jung Chang, Yi-Yen Lin