Patents by Inventor Lizao ZHANG

Lizao ZHANG 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: 11838697
    Abstract: This application provides an ultra-short-throw picture and screen alignment method which includes the steps: acquiring an image by a wide-angle camera and performing positioning according to the image to obtain a projection position when a current projection picture of an ultra-short-throw projector covers a screen; adjusting a size and a position of the current projection picture according to a position of the screen and the projection position, so that the position of the adjusted projection picture is overlapped with a target position.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 5, 2023
    Assignee: CHENGDU XGIMI TECHNOLOGY CO., LTD.
    Inventors: Bo Zhong, Shi Xiao, Xin Wang, Lizao Zhang
  • Publication number: 20220321850
    Abstract: This application provides an ultra-short-throw picture and screen alignment method which includes the steps: acquiring an image by a wide-angle camera and performing positioning according to the image to obtain a projection position when a current projection picture of an ultra-short-throw projector covers a screen; adjusting a size and a position of the current projection picture according to a position of the screen and the projection position, so that the position of the adjusted projection picture is overlapped with a target position.
    Type: Application
    Filed: March 13, 2020
    Publication date: October 6, 2022
    Inventors: Bo ZHONG, Shi XIAO, Xin WANG, Lizao ZHANG
  • Publication number: 20220262287
    Abstract: This application provides an ultra-short-throw picture and screen alignment method which includes that: a first lateral projected image and a second lateral projected image are acquired by two cameras when an ultra-short-throw projector projects a picture; image processing is performed on the first lateral projected image and the second lateral projected image to obtain a projection position in a projection area and a screen position in a screen area; and the picture is adjusted according to the screen position and the projection position, so that a position of an adjusted projection picture and a target position coincide. In this application, the projected images are acquired by the two cameras, thereby ensuring acquisition of complete images.
    Type: Application
    Filed: March 13, 2020
    Publication date: August 18, 2022
    Inventors: Bo ZHONG, Shi XIAO, Xin WANG, Lizao ZHANG