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Optical reading of external segmented display

  • US 10,083,365 B2
  • Filed: 07/27/2016
  • Issued: 09/25/2018
  • Est. Priority Date: 01/04/2016
  • Status: Active Grant
First Claim
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1. A method for optical reading of a segmented display using a reading device, the method comprising:

  • a camera viewing the segmented display and displaying a real time image of the segmented display on a video screen of the reading device, the camera connected to the reading device;

    the segmented display being part of an external segmented display device, the segmented display comprising a number of character segments configured to be selectively activated to collectively display a plurality of alphanumeric characters, the activated and displayed character segments each forming at least a portion of at least one of the plurality of characters and having a length, position and orientation on at least one of the alphanumeric characters specific to the segmented display;

    the reading device comprising a data reading application and one or more configuration parameters specific to the external segmented display device being read, and the data reading application performing a method, comprising;

    capturing and storing one or more still captured images from the viewing of the segmented display;

    while the camera is viewing and displaying the real time image of the segmented display on the video screen, the reading device generating one or more partial optical character recognition (OCR) result readings of at least a portion of an alphanumeric character formed by the activated character segments of the external segmented display device for each of the one or more still captured images of the segmented display, the generating comprising processing each of the one or more still captured images using the one or more configuration parameters specific to the external segmented display device being read and recognizing one or more character segments of the segmented display;

    based at least in part on the generated one or more partial OCR result readings, the reading device providing one or more real time feedback cues on the reading device, wherein the one or more real time feedback cues comprise the reading device displaying, along with the real time image of the segmented display, an alphanumeric value indicating the generated one or more partial OCR result readings of the segmented display; and

    the reading device determining a final OCR result reading of the segmented display using the one or more partial OCR result readings generated from the one or more stored still captured images of the segmented display.

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