Patents by Inventor Dingxi Chen

Dingxi Chen 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: 10008065
    Abstract: A method and device for banknote identification based on thickness signal identification, allowing for simple and highly efficient identification and separation of abnormal banknotes by means of combining two thickness identification methods, namely an upward-facing area identification method and a downward-facing area identification method, for banknote identification.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 26, 2018
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Xiaoliang Wang, Tiancai Liang, Guang Chen, Dingxi Chen
  • Patent number: 9827599
    Abstract: A banknote recognition and classification method and system are provided. In the method and system, a large number of reliable samples which are easy to acquire currently are used to establish a sample signal degradation model which meets application requirements by means of a statistical method, sample information is input into the banknote sample signal degeneration model to acquire various banknote sample information corresponding to the brand new banknotes to be learned; the various banknote sample information is input to perform classifier learning, and a banknote classification model is output; then a classifier learns to perform classification and recognition on a sample to be recognized.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: November 28, 2017
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai Liang, Panfeng Luo, Siwei Liu, Dingxi Chen, Weifeng Wang
  • Publication number: 20160225216
    Abstract: A method and device for banknote identification based on thickness signal identification, allowing for simple and highly efficient identification and separation of abnormal banknotes by means of combining two thickness identification methods, namely an upward-facing area identification method and a downward-facing area identification method, for banknote identification.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 4, 2016
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Xiaoliang Wang, Tiancai Liang, Guang Chen, Dingxi Chen
  • Publication number: 20160121370
    Abstract: A banknote recognition and classification method and system are provided. In the method and system, a large number of reliable samples which are easy to acquire currently are used to establish a sample signal degradation model which meets application requirements by means of a statistical method, sample information is input into the banknote sample signal degeneration model to acquire various banknote sample information corresponding to the brand new banknotes to be learned; the various banknote sample information is input to perform classifier learning, and a banknote classification model is output; then a classifier learns to perform classification and recognition on a sample to be recognized.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 5, 2016
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai Liang, Panfeng Luo, Siwei Liu, Dingxi Chen, Weifeng Wang
  • Patent number: 9189842
    Abstract: A paper identifying method and a related device, used for accurately identifying soilage conditions of paper according to the recency degree of the paper. The method in an embodiment of the present invention comprises: obtaining a pixel gray value group of an image of input paper, the pixel gray value group being a combination of gray values of sampled pixels of a specified region of the input paper; obtaining an average value of gray values of all pixels in the pixel gray value group, and using same as a first average gray value; comparing the first average gray value with a recency threshold to determine the recency level of the input paper; obtaining the soilage depth of each of N regions of the input paper, the N being an integer greater than or equal to 1; and determining the soilage level of the input paper according to the soilage depth of the N regions, the region area and a soilage threshold, the soilage threshold corresponding to the recency level.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: November 17, 2015
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai Liang, Dingxi Chen, Weifeng Wang, Kun Wang
  • Patent number: 9122944
    Abstract: A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: September 1, 2015
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Yuanchao Yu, Tiancai Liang, Dingxi Chen, Kun Wang
  • Patent number: 8979090
    Abstract: A valuable file identification device, comprising a housing; a hollow transparent drum; an annular clamping belt supported by at least two tension rollers and pressing against the transparent drum, the outer surface of the annular clamping belt and the outer surface of the transparent drum forming a clamping and conveying channel for the valuable file, and the length of the clamping and conveying channel being greater than that of the valuable file in the conveying direction; at least one information acquisition device, the information acquisition element of the information acquisition device being adjacent to the inner surface of the transparent drum, facing at least a part of the outer surface of the annular clamping belt, and being fixed relative to the side wall of the housing; and a power-driven device respectively driving the transparent drum and the annular clamping belt to move synchronously in opposite directions.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: March 17, 2015
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Guang Chen, Tiancai Liang, Kun Wang, Dingxi Chen
  • Publication number: 20140270460
    Abstract: A paper identifying method and a related device, used for accurately identifying soilage conditions of paper according to the recency degree of the paper. The method in an embodiment of the present invention comprises: obtaining a pixel gray value group of an image of input paper, the pixel gray value group being a combination of gray values of sampled pixels of a specified region of the input paper; obtaining an average value of gray values of all pixels in the pixel gray value group, and using same as a first average gray value; comparing the first average gray value with a recency threshold to determine the recency level of the input paper; obtaining the soilage depth of each of N regions of the input paper, the N being an integer greater than or equal to 1; and determining the soilage level of the input paper according to the soilage depth of the N regions, the region area and a soilage threshold, the soilage threshold corresponding to the recency level.
    Type: Application
    Filed: March 27, 2013
    Publication date: September 18, 2014
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai Liang, Dingxi Chen, Weifeng Wang, Kun Wang
  • Publication number: 20140210161
    Abstract: A valuable file identification device, comprising a housing; a hollow transparent drum; an annular clamping belt supported by at least two tension rollers and pressing against the transparent drum, the outer surface of the annular clamping belt and the outer surface of the transparent drum forming a clamping and conveying channel for the valuable file, and the length of the clamping and conveying channel being greater than that of the valuable file in the conveying direction; at least one information acquisition device, the information acquisition element of the information acquisition device being adjacent to the inner surface of the transparent drum, facing at least a part of the outer surface of the annular clamping belt, and being fixed relative to the side wall of the housing; and a power-driven device respectively driving the transparent drum and the annular clamping belt to move synchronously in opposite directions.
    Type: Application
    Filed: October 26, 2012
    Publication date: July 31, 2014
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Guang Chen, Tiancai Liang, Kun Wang, Dingxi Chen
  • Publication number: 20140126803
    Abstract: A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 8, 2014
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Yuanchao Yu, Tiancai Liang, Dingxi Chen, Kun Wang