Granted Patent B2

US 8,893,974 · App. 13/690,161 · Granted Nov 25, 2014

Abstract

Claims (23)

1. A method for detecting reproduction of barcodes comprising:

providing a barcode which contains data;

providing a copy-evident background;

capturing an image of the barcode and the copy-evident background;

locating and decoding the barcode;

using the location of the barcode to locate the copy-evident background,

detecting copy introduced changes in the copy-evident background; and

authenticating the barcode if the copy-evident background has not been copied.

2. The method of claim 1 wherein the copy-evident background is located adjacent to the barcode.

3. The method of claim 1 wherein the copy-evident background contains one or more color elements.

4. The method of claim 1 further wherein the copy-evident background is a void pantograph.

5. The method of claim 1 further wherein the barcode is authenticated on site by means of a computer or other computational device.

6. The method of claim 1 further comprising:

transmitting the data obtained from the barcode, an image of the barcode, or both to a remote location for authentication.

7. The method of claim 6 further comprising:

transmitting a confirmation of authentication from the remote location to the site of the transmission.

8. A method for detecting reproduction of barcodes comprising:

providing a barcode which contains data and one or more color elements;

capturing an image of the barcode and a copy-evident background;

locating and decoding the barcode;

using the location of the barcode to locate the copy-evident background,

detecting copy introduced changes in the color of the barcode; and

authenticating the barcode if the barcode has not been copied.

Assignments (18)