公开(公告)号：US20180050555A1

公开(公告)日：2018-02-22

申请号：US15681029

申请日：2017-08-18

Applicant: OBERTHUR TECHNOLOGIES

Inventor： Benoît BERTHE ,  Coralie VANDROUX

IPC: B42D25/41 ,  B42D25/23 ,  B42D25/455 ,  B42D25/46 ,  B42D25/309 ,  B42D25/351 ,  G07D7/20 ,  G06K9/00 ,  G06K9/20 ,  G06K9/46

CPC classification number: B42D25/41 ,  B41M3/14 ,  B41M5/267 ,  B42D25/23 ,  B42D25/309 ,  B42D25/351 ,  B42D25/455 ,  B42D25/46 ,  G06K9/00442 ,  G06K9/2036 ,  G06K9/4652 ,  G06K9/4661 ,  G07D7/12 ,  G07D7/20

Abstract: A security document may include a laserizable first layer including a grayscale image formed by laserizing; a color pattern that is in alignment with the grayscale image; and a second layer arranged between the first layer and the pattern, such that the first layer is above the second layer, and the pattern is below the second layer. The second layer may be more opaque than the first layer, such that when observing the security document from the top, the grayscale image appears to be colored by the color pattern only when the bottom of the security document is being illuminated.

公开(公告)号：US20180122173A1

公开(公告)日：2018-05-03

申请号：US15566828

申请日：2016-04-15

Applicant: OBERTHUR TECHNOLOGIES

Inventor： Benoît BERTHE ,  Coralie VANDROUX ,  Yvonnic MOREL

IPC: G07D7/1205 ,  G07D7/00 ,  G07D7/004 ,  G07D7/202

CPC classification number: G07D7/1205 ,  G07D7/003 ,  G07D7/004 ,  G07D7/205

Abstract: A method for verifying a security device including an image having a signature. The method may include operations for acquiring the image in order to obtain a first representation of the image, extracting the signature, and verifying the signature. Also included are implementations in the form of a verification apparatus, a computer program, and a computer data medium including such a computer program.