Patents by Inventor Kefeng Liao

Kefeng Liao 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).

  • Method and apparatus for fast flicker-free displaying overlapped sparse graphs with optional shape
    Patent number: 7969439
    Abstract: A method for converting graphic elements containing sparse graphs into graphic layers is described, comprising the steps of: correspondingly mapping respective sparse graphs to respective sparse graphic layers, and projecting sequentially from top to bottom the regular graphs between the sparse graphs into a projection plane to form a regular graphic composition layer. Also described is a method for fast flicker-free displaying overlapped sparse graphs with optional shape, comprising: converting graphic element containing sparse graphs to be displayed into graphic layers; deciding whether to plot or erase the sparse graph to be displayed, and, when the sparse graph is decided to be erased, setting various points on the corresponding sparse graph to be transparent; and completing the plotting of points of the sparse graph point by point based on the shape of the sparse graph to be displayed. Apparatuses corresponding to the above methods are also described.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: June 28, 2011
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Shengyao Mao, Kefeng Liao
  • METHOD AND APPARATUS FOR FAST FLICKER-FREE DISPLAYING OVERLAPPED SPARSE GRAPHS WITH OPTIONAL SHAPE
    Publication number: 20080278519
    Abstract: A method for converting graphic elements containing sparse graphs into graphic layers is described, comprising the steps of: correspondingly mapping respective sparse graphs to respective sparse graphic layers, and projecting sequentially from top to bottom the regular graphs between the sparse graphs into a projection plane to form a regular graphic composition layer. Also described is a method for fast flicker-free displaying overlapped sparse graphs with optional shape, comprising: converting graphic element containing sparse graphs to be displayed into graphic layers; deciding whether to plot or erase the sparse graph to be displayed, and, when the sparse graph is decided to be erased, setting various points on the corresponding sparse graph to be transparent; and completing the plotting of points of the sparse graph point by point based on the shape of the sparse graph to be displayed. Apparatuses corresponding to the above methods are also described.
    Type: Application
    Filed: November 28, 2007
    Publication date: November 13, 2008
    Applicant: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Shengyao Mao, Kefeng Liao
  • Support frame for carrycot
    Patent number: D1001564
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: October 17, 2023
    Assignee: Wonderland Switzerland AG
    Inventors: Manqun Cheng, Kefeng Liao