Covert variable information on identification documents and methods of making same

• US 20030173406A1
• Filed: 12/24/2002
• Published: 09/18/2003
• Est. Priority Date: 12/24/2001
• Status: Active Grant

• Current Assignee: L-1 Secure Credentialing, LLC (Advent International Corporation)
• Original Assignee: Digimarc Corporation
• Inventors: Jones, Robert, Bi, Daoshen
• Granted Patent: US 7,063,264 B2
• Time in Patent Office: Days
• US Class Current: 235/491
• CPC Class Codes: B41M 3/144 using fluorescent, luminescent or iridescent effects
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/309 Photographs
• CPC Class Codes: B42D 25/382 absorbing or reflecting infrared light
• CPC Class Codes: B42D 25/387 absorbing or reflecting ultraviolet light
• CPC Class Codes: B42D 25/41 using electromagnetic radiation B42D25/435 takes precedence
• CPC Class Codes: H04N 1/32133 on the same paper sheet, e.g. a facsimile page header
• CPC Class Codes: H04N 1/32144 embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
• CPC Class Codes: H04N 2201/3233 of authentication information, e.g. digital signature, watermark
• CPC Class Codes: H04N 2201/3236 Details of authentication information generation
• CPC Class Codes: H04N 2201/327 which are undetectable to the naked eye, e.g. embedded codes
• CPC Class Codes: H04N 2201/3271 Printing or stamping

Abstract

In one embodiment, a method for manufacturing an identification document is provided. A substrate is provided that is constructed and arranged to receive printing thereon. A first variable indicium is printed on the substrate, where the first variable indicium is not visible to the human eye in ambient light but is visible to the human eye when viewed using a first type of light.

Claims

9-1. The method of claim 1, further comprising:

printing a second variable indicium on the substrate using the thermal transfer ribbon, the second variable indicium being visible in when viewed using a second type of light.

10-2. The method of claim 9, wherein the second variable indicium is viewable in ambient light.

11-3. The method of claim 10, wherein the first variable indicium is at least partially superimposed over the second variable indicium.

14. An identification document, comprising:

a substrate; and

a first variable indicium formed on the substrate, wherein the first variable indicium is not visible to the human eye in ambient light but is visible to the human eye when viewed using a first type of light.