Patents by Inventor Li-Jiang Dai

Li-Jiang Dai 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).

  • Barcode reading method and barcode reading device
    Patent number: 8950677
    Abstract: A barcode reading method and a barcode reading device are provided. An image sensor is utilized to capture an image of a barcode via an optical lens, and then a triangulation method and an ideal lens imagining method are collocated to calculate the digital image so as to produce an optimum image distance. A distance between the image sensor and the optical lens is then adjusted in accordance with the optimum image distance, so that the barcode can be immediately and clearly imaged on the image sensor.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: February 10, 2015
    Assignees: Sintai Optical (Shenzhen) Co., Ltd., Asia Optical International Ltd.
    Inventors: Li-Jiang Dai, Chang-Feng Wang, Hui-Qing Chen, Bi-Yao Jian
  • Barcode Reading Method and Barcode Reading Device
    Publication number: 20140070007
    Abstract: A barcode reading method and a barcode reading device are provided. An image sensor is utilized to capture an image of a barcode via an optical lens, and then a triangulation method and an ideal lens imagining method are collocated to calculate the digital image so as to produce an optimum image distance. A distance between the image sensor and the optical lens is then adjusted in accordance with the optimum image distance, so that the barcode can be immediately and clearly imaged on the image sensor.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 13, 2014
    Applicants: Asia Optical International Ltd., Sintai Optical (Shenzhen) Co., Ltd.
    Inventors: Li-Jiang Dai, Chang-Feng Wang, Hui-Qing Chen, Bi-Yao Jian