Patents by Inventor Changli WU

Changli WU 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: 11206809
    Abstract: A fun pet feeder, comprising a shell, a cavity for housing food provided in an upper part of the shell, a food sliding area in a lower part of the shell, a leaky channel capable of being opened and closed between the cavity and the food sliding area, a elastic part in the cavity, a feedstuff outlet provided in a lower part of the cavity, with a lower end of the elastic part resting in the feedstuff outlet, and feedstuff outlet dents provided on the lower end of the elastic part; when the elastic part remains in an initial position, the feedstuff outlet dents are above the feedstuff outlet, the food cannot reach the food sliding area and when the elastic part is pressed and goes downward, the feedstuff outlet dents enter the feedstuff outlet and the feedstuff enters the food sliding area.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 28, 2021
    Inventor: Changli Wu
  • Patent number: 10887500
    Abstract: Optical inspection system detects defects of an object, such as an electronic device during manufacturing. The optical inspection system includes a first linear light source that irradiates a first light beam on a top surface of the object along a scan line across the width of the object. A second linear light source forms an angle with the first linear light source and irradiates a second light beam on a side surface of the object. A camera receives scattered light from the top surface and the side surface of the object and captures a subimage of the object along the scan line. An image processing system receives each subimage from the camera, stitches the subimages, and detects defects on the top surface and the side surface of the object.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: January 5, 2021
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Changli Wu, Ying Liu
  • Publication number: 20200363619
    Abstract: The invention provides a chromatic confocal system for inspecting an object. The system comprises a first light modulator for providing a spatially modulated light beam arranged to project on one or more parts of the object to form a reflected light beam carrying image information of the one or more projected parts of the object; a second light modulator for spatially filtering the reflected light beam to form a light beam carrying filtered image information of the one or more projected parts of the object; wherein operation of the first light modulator and the second light modulator is synchronized such that the spatial filtering of the second light modulator varies in concert with variations in the spatial modulation of the first light modulator.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Inventors: Vladislav Nikitin, Changli Wu, Qi Lang
  • Publication number: 20180213134
    Abstract: Optical inspection system detects defects of an object, such as an electronic device during manufacturing. The optical inspection system includes a first linear light source that irradiates a first light beam on a top surface of the object along a scan line across the width of the object. A second linear light source forms an angle with the first linear light source and irradiates a second light beam on a side surface of the object. A camera receives scattered light from the top surface and the side surface of the object and captures a subimage of the object along the scan line. An image processing system receives each subimage from the camera, stitches the subimages, and detects defects on the top surface and the side surface of the object.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 26, 2018
    Inventors: Changli WU, Ying LIU
  • Patent number: 9970884
    Abstract: An apparatus for inspecting a light transmissive optical component comprises an image capturing module arranged on a first side of a support configured to hold a light transmissive optical component while it is being inspected. One or more first illuminating means are arranged on the first side of the support and adapted to illuminate from a first side of a light transmissive optical component held by the support. One or more second illuminating means are arranged on a second side of the support and adapted to illuminate from a second side of the light transmissive optical component held by the support, the second side of the support opposing the first side of said support.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 15, 2018
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Vladislav Nikitin, Anna Liu, Changli Wu
  • Patent number: 9298076
    Abstract: An image projector for augmenting the appearance of a physical object is disclosed, also known as an augmented reality projector. The augmented reality projector comprises an optical arrangement to provide the possibility of precise matching of a projected image of the physical object back onto the object itself, instead of using digital image processing to do so. Digital image processing may be used to enhance features of the image and is not required for resizing or orienting the image to the object. This reduces the need for computational power to process the image and spares processing resources to refresh the image in real time. Accordingly, the processed image can be refreshed to change the appearance of a moving object. Furthermore, the precise matching provides the possibility of using projected images a graphical use interface, as movements of a user's fingers on the interface can be determined accurately.
    Type: Grant
    Filed: January 5, 2014
    Date of Patent: March 29, 2016
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Changli Wu, Xuyan Huang, Ying Liu
  • Publication number: 20150193978
    Abstract: An image projector for augmenting the appearance of a physical object is disclosed, also known as an augmented reality projector. The augmented reality projector comprises an optical arrangement to provide the possibility of precise matching of a projected image of the physical object back onto the object itself, instead of using digital image processing to do so. Digital image processing may be used to enhance features of the image and is not required for resizing or orienting the image to the object. This reduces the need for computational power to process the image and spares processing resources to refresh the image in real time. Accordingly, the processed image can be refreshed to change the appearance of a moving object. Furthermore, the precise matching provides the possibility of using projected images a graphical use interface, as movements of a user's fingers on the interface can be determined accurately.
    Type: Application
    Filed: January 5, 2014
    Publication date: July 9, 2015
    Applicant: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Changli WU, Xuyan HUANG, Ying LIU
  • Patent number: D901792
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 10, 2020
    Inventor: Changli Wu
  • Patent number: D930915
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: September 14, 2021
    Inventor: Changli Wu
  • Patent number: D945088
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 1, 2022
    Assignee: Shandong Weishuo Yuanda Technology Innovation Co., Ltd.
    Inventor: Changli Wu