Patents by Inventor CHIH-WEI LEI

CHIH-WEI LEI 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: 11997266
    Abstract: Methods and apparatus for loop-filter processing of reconstructed video are disclosed. According to one method, multiple CC-ALF (Cross-Component Adaptive Loop Filter) filters are used. Selection of the multiple CC-ALF filters can be signalled in one APS (Adaptation Parameter Set). According to another method, the CC-ALF can be implemented according to the difference between a to-be-process sample and its neighbouring sample.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: May 28, 2024
    Assignee: HFI INNOVATION INC.
    Inventors: Yu-Wen Huang, Chih-Wei Hsu, Ching-Yeh Chen, Tzu-Der Chuang, Shaw-Min Lei
  • Publication number: 20180312752
    Abstract: Disclosed herein are carbon quantum dots (CQDs), and methods for producing the CQDs. The method includes the steps of, (a) reacting CQD precursors and a liquid medium at a temperature no more than 100° C. for a first period of time; and (b) adding a monosaccharide to the reaction mixture of the step (a) and allowing the reaction to proceed for a second period of time to produce the CQDs. The CQDs thus produced are about 1-5 nm in size, and pH sensitive, thus may emit blue light at acidic condition and yellow light at alkaline condition.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Applicant: Chung Yuan Christian University
    Inventors: Wei-Jen LIU, Chih-Wei LEI
  • Patent number: 9979976
    Abstract: The disclosure provides a Light-weight Video Coding system and a decoder for a Light-weight Video Coding system. The decoder includes: a mode decision module and a motion estimation module. The mode decision module, which adopts four flexible types of mode decision, is used for selecting a mode. And, it is used for selecting at least one predetermined block of a current frame according to the mode including plurality pixels. The motion estimation module, which adopts the Partial Boundary Matching Algorithm, is used for selecting partial neighbor pixels of left and top of the block according to the predetermined block in the current frame. And it is used for comparing with corresponding neighbor plurality pixels of left and top with a corresponding predetermined block in reference frame. It is determining whether the corresponding predetermined block in the reference frame copies and pastes to the predetermined block in the current frame.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: May 22, 2018
    Assignee: NATIONAL KAOHSIUNG FIRST UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Chih-Wei Lei
  • Publication number: 20160165258
    Abstract: The disclosure provides a Light-weight Video Coding system and a decoder for a Light-weight Video Coding system. The decoder includes: a mode decision module and a motion estimation module. The mode decision module, which adopts four flexible types of mode decision, is used for selecting a mode. And, it is used for selecting at least one predetermined block of a current frame according to the mode including plurality pixels. The motion estimation module, which adopts the Partial Boundary Matching Algorithm, is used for selecting partial neighbor pixels of left and top of the block according to the predetermined block in the current frame. And it is used for comparing with corresponding neighbor plurality pixels of left and top with a corresponding predetermined block in reference frame. It is determining whether the corresponding predetermined block in the reference frame copies and pastes to the predetermined block in the current frame.
    Type: Application
    Filed: June 9, 2015
    Publication date: June 9, 2016
    Inventor: CHIH-WEI LEI