Patent ID: 11875206
Assignee: DIGIMARC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A checkout method including the acts:
receiving frames of image data from one or more cameras;
applying the frames of image data to at least first and second different 2D code detectors, each of said 2D code detectors having an output to provide an output payload including a global trade item number, the first of said 2D code detectors comprising a digital watermark detector;
processing a global trade item number string included in an output payload provided from the second 2D code detector by one or both of (1) prepending “01” to said global trade item number string, and (2) zero-padding said global trade item number string to extend a length of said string to a predetermined length; and
comparing the processed global trade item number string with data stored in a memory to determine a match, and taking an action based on a result of said comparing.