Patents by Inventor WenLiang Gao

WenLiang Gao 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).

  • Publication number: 20180033256
    Abstract: A scanner is configured to verify barcodes as described below. The scanner has a processor and memories for reading a barcode, capturing images of the product having the barcode, and generating notifications based on attributes of the barcode attached to the product. The processor measures barcode attributes specified by international barcode standards for each barcode extracted from the product images. A grade is then assigned to each extracted barcode based on the barcode attributes and the corresponding measurements. If necessary, notifications are generated based on the assigned grade and are then transmitted to the retailer to correct the deficiencies with the barcode or the product.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 1, 2018
    Inventors: Mohamed Hamidat, WenLiang Gao
  • Patent number: 9867242
    Abstract: Tuning a bias voltage supplied to a series of one or more LEDs in a constant current LED pulsing drive circuit may comprise the steps of: (A) setting the bias voltage to a test value, the test value being at least equal to the sum of the bias voltage second component and the maximum forward voltage rating of each of the one or more LEDs; (B) measuring an intermediate voltage present between the series of one or more LEDs and the constant current source when the LEDs are turned on; (C) determining if the intermediate voltage exceeds the second component of the bias voltage; and (D) upon determining the intermediate voltage exceeds the second component of the bias voltage, reducing the bias voltage applied to the one or more LEDs by an amount necessary to cause the intermediate voltage to equal the second component of the bias voltage.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 9, 2018
    Assignee: Datalogic USA, Inc.
    Inventors: WenLiang Gao, Pat O'Donnell
  • Publication number: 20180005392
    Abstract: One embodiment of a system and method for imaging items may include storing at least one lookup table that includes position data of multiple image regions, where the position data provides relative positions of the image regions. An item may be moved to pass through the image regions. Image data of the item may be imaged as the item passes through a plurality of the image regions. The position data may be applied to the captured respective image data from each of the image regions through which the item passed to form a set of stitching image data that is substantially aligned with one another. The set of stitching image data may be stitched to form a composite image of the item.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventor: WenLiang Gao
  • Publication number: 20170372157
    Abstract: Scanners, methods, and computer storage media having computer-executable instructions embodied thereon that process variable sized objects with high package pitch on a moving conveyor belt are provided. The scanners include a substrate and a plurality of sensors attached to the substrate. The plurality of sensors forms an array of sensors having at least two or more rows of off-axis sensors. The sensors may include a one or more area array sensors. The arrays of sensors captures moving objects row by row and are optimized reduce object spacing on the conveyor belt. Additionally, the scanner having the array of sensor may process different objects having different heights at the same time. Accordingly, object throughput on the conveyor belt is increased by reducing minimum object gap (e.g., processing of “no gap” or non-singulated objects).
    Type: Application
    Filed: September 30, 2015
    Publication date: December 28, 2017
    Inventors: XINPING LIU, ANDREW HATSTAT, FEDERICO CANINI, PIETRO TODESCATO, WENLIANG GAO
  • Publication number: 20170277928
    Abstract: A system and method for reading a label may include imaging, by a plurality of cameras, a label applied to an item. A 3D position of each segment of the label imaged by any of the cameras may be determined. The segments in the same relative 3D location as the item and other segments may be associated. The label formed from the segments associated with the item may be read.
    Type: Application
    Filed: June 12, 2017
    Publication date: September 28, 2017
    Inventors: WenLiang Gao, Craig Cherry, Jonathan R. Brandt
  • Patent number: 9679181
    Abstract: A system and method for reading a label may include imaging, by a plurality of cameras, a label applied to an item. A 3D position of each segment of the label imaged by any of the cameras may be determined. The segments in the same relative 3D location as the item and other segments may be associated. The label formed from the segments associated with the item may be read.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 13, 2017
    Assignee: Datalogic ADC, Inc.
    Inventors: WenLiang Gao, Craig Cherry, Jonathan R. Brandt
  • Publication number: 20170161534
    Abstract: A system and method for reading a label may include imaging, by a plurality of cameras, a label applied to an item. A 3D position of each segment of the label imaged by any of the cameras may be determined. The segments in the same relative 3D location as the item and other segments may be associated. The label formed from the segments associated with the item may be read.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 8, 2017
    Inventors: WenLiang Gao, Craig Cherry, Jonathan R. Brandt
  • Patent number: 9672678
    Abstract: A device, system, and method of detecting counterfeit articles are provided. The method includes receiving article identifying information associated with a test article, using the article identifying information to retrieve an authentic article image associated with the test article from an image storage database, scanning the test article to capture one or more images of the test article under different wavelength illuminations, and displaying the one or more test article images and the authentic article image to allow comparison of the test article and the associated authentic article. Additionally, multiple wavelength emitting elements may be located within an image-capturing device, to provide alternate illuminations of the test article, allowing alternating capture of images highlighting different security features for providing a superimposed image. A system of counterfeit article detection is also provided.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: June 6, 2017
    Assignee: Datalogic USA, Inc.
    Inventor: Wenliang Gao
  • Patent number: 9651363
    Abstract: Systems and methods of determining object dimensions of objects passed through a read zone of an automated data reader are disclosed. A system can include a data reader to read an optical code disposed on the objects, a transport mechanism, an object measurement system to measure dimensions of objects that are transported by the transport mechanism, a light plane generator to project a light plane that produces a light stripe on an object, and a camera to capture image data of objects and a light stripe thereon that can be processed to determine a deviation of a light stripe relative to an optical center within the image data. A deviation from the optical center is used to determine one or more dimensions of the object.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 16, 2017
    Assignee: DATALOGIC USA, INC.
    Inventors: WenLiang Gao, Bryan L. Olmstead, Alan Shearin
  • Patent number: 9594936
    Abstract: Disclosed systems and methods for a data reader operable to capture one or more images from items having a highly, or relatively highly, reflective surface. The data reader includes a controller/processor in operative communication with an imager and an illumination system, where the controller/processor is programmed to selectively operate the imager and the illumination systems to interleave the data reader between a first reading period for reading items having a surface with little or no reflectivity and a second reading period for reading items having a surface with high reflectivity. In some embodiments, the items with highly reflective surfaces may include electronic devices, such as mobile phones.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: March 14, 2017
    Assignee: Datalogic USA, Inc.
    Inventor: WenLiang Gao
  • Patent number: 9552507
    Abstract: An automated checkout system and method of operation for reading encoded data on a bottom surface of an item using a data reader. The automated checkout system includes a leading conveyor section and a trailing conveyor section separated by a gap therebetween, where the item is transported across the gap as it moves between the conveyors. A first and second reading device are each positioned beneath the conveyor sections, where each reading device has a field of view projecting through the gap. The first reading device is configured to acquire a first set of scan data and the second reading device is configured to acquire a second set of scan data different from the first. In some embodiments, the first set of scan data may include two-dimensional area views of the encoded data, and the second set of scan data may include linescans of the encoded data.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 24, 2017
    Assignee: Datalogic USA, Inc.
    Inventors: Alan Shearin, WenLiang Gao, Bryan L. Olmstead
  • Publication number: 20160364936
    Abstract: A device, system, and method of detecting counterfeit articles are provided. The method includes receiving article identifying information associated with a test article, using the article identifying information to retrieve an authentic article image associated with the test article from an image storage database, scanning the test article to capture one or more images of the test article under different wavelength illuminations, and displaying the one or more test article images and the authentic article image to allow comparison of the test article and the associated authentic article. Additionally, multiple wavelength emitting elements may be located within an image-capturing device, to provide alternate illuminations of the test article, allowing alternating capture of images highlighting different security features for providing a superimposed image. A system of counterfeit article detection is also provided.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 15, 2016
    Inventor: WENLIANG GAO
  • Patent number: 9519810
    Abstract: Calibrating extrinsic parameters of an imaging system in an automated data reading system includes obtaining, from the imaging system, image data representing an imaged portion of a planar calibration target. The target is coupled to a housing of the automated data reading system and superimposed on a surface thereof. For example, the calibration target is placed on a conveyer surface, or it is printed on the housing of the automated data reading system. The imaged portion of the planar calibration target includes spaced-apart optical codes disposed at positions that coincide with predetermined locations of the automated data reading system to define known calibration-control points for the surface. Optical codes represented in the image data are decoded to obtain observed calibration-control points used for calibrating the extrinsic parameters based on differences between the known and observed locations of the calibration-control points.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: December 13, 2016
    Assignee: Datalogic ADC, Inc.
    Inventors: WenLiang Gao, Jeffrey J. Hoskinson
  • Patent number: 9514344
    Abstract: Systems and methods for data reading are disclosed wherein one or more images of an item bearing an optical code are captured and the captured images are analyzed to determine whether the item has a reflective surface or not. Based on such a determination, operating parameters of the system, such as one or more of: the amount of time dedicated to 1D code decoding and the amount of time dedicated to 2D code decoding, the order in which 1D code and 2D code decoding are performed, termination of a decoding operation, restarting an image capture and decoding operation, and image preprocessing may be automatically adjusted by the system to decode an optical code.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: December 6, 2016
    Assignee: Datalogic ADC, Inc.
    Inventors: WenLiang Gao, Alan J. Guess
  • Publication number: 20150347799
    Abstract: Systems and methods for providing multiple image fields or regions on a single, two-dimensional imaging sensor array of a data reader. A single sensor array may be divided into two or more imaging regions each of which may be used to render a separate view of an overall read volume. An image-side telecentric optical system may be utilized to divide the sensor array into the two or more imaging regions. A thin, high refractive index focal element (e.g., optical glass) may be positioned over at least one of the two or more imaging regions to provide multiple focus positions using a single telecentric optical system and a single sensor array. The multiple imaging regions may be used to capture images from different regions, and/or may be used produce a longer depth of field by combining overlapping depths of field of the multiple imaging regions.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: Datalogic ADC, Inc.
    Inventor: WenLiang Gao
  • Patent number: 9141842
    Abstract: Disclosed systems and methods generate a sequence of images using a data reader having an imager exposed to multiple fields of view that are alternately illuminated to coincide with exposure periods forming an image capture rate. In one configuration, a first illumination source illuminates a first field of view of the data reader with a first series of illumination pulses at a first pulse repetition rate. The imager captures in an alternating manner a first set of images of the first field of view and a second set of images of a second field of view. The first pulse repetition rate and the image capture rate are set such that the imager captures the first set of images at approximately the same time as the first illumination source illuminates the first field of view with an illumination pulse.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: September 22, 2015
    Assignee: Datalogic ADC, Inc.
    Inventor: WenLiang Gao
  • Patent number: 9122939
    Abstract: Methods and systems are disclosed for improved operation of readers of optical codes presented on electronic display screens or other highly reflective surfaces. Certain configurations include controlling image exposure and illumination pulse timing so as to avoid or minimize the perception of flicker of the pulsed illumination by a user or bystander while implementing methods for reading optical codes presented on electronic display screens or other highly reflective surfaces.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: September 1, 2015
    Assignee: Datalogic ADC, Inc.
    Inventors: WenLiang Gao, Craig D. Cherry
  • Patent number: 8998092
    Abstract: Systems and methods of optical code reading include production of image data by a color image sensor array and processing of the image data to decode an optical code. In one configuration, the color image sensor array includes first and second sets of sensor pixels sensitive to light having different wavelengths. Reflected light is focused by an optical system to form one or more images of an optical code on the color image sensor array. The optical system includes optics to form first and second images of an object bearing the optical code, where the first image excludes light of the second wavelength and the second image excludes light of the first wavelength, thereby enabling the first set of sensor pixels to sense the first image without substantially sensing the second image and the second set of sensor pixels to sense the second image without substantially sensing the first image.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: April 7, 2015
    Assignee: Datalogic ADC, Inc.
    Inventor: WenLiang Gao
  • Patent number: 8919651
    Abstract: A data reader including one or more imagers or imager assemblies that capture two-dimensional images of an object disposed in a view volume, the data reader having fold mirrors and other component arrangement that enable compact and efficient component configuration.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: December 30, 2014
    Assignee: Datalogic ADC, Inc.
    Inventors: WenLiang Gao, Alan Shearin, Jorge L. Acosta, Ryan B. Thompson, Paul R. Huss, Jeffrey J. Hoskinson
  • Publication number: 20140339309
    Abstract: Systems and methods of optical code reading include production of image data by a color image sensor array and processing of the image data to decode an optical code. In one configuration, the color image sensor array includes first and second sets of sensor pixels sensitive to light having different wavelengths. Reflected light is focused by an optical system to form one or more images of an optical code on the color image sensor array. The optical system includes optics to form first and second images of an object bearing the optical code, where the first image excludes light of the second wavelength and the second image excludes light of the first wavelength, thereby enabling the first set of sensor pixels to sense the first image without substantially sensing the second image and the second set of sensor pixels to sense the second image without substantially sensing the first image.
    Type: Application
    Filed: June 17, 2014
    Publication date: November 20, 2014
    Inventor: WenLiang Gao