公开(公告)号：US10551524B2

公开(公告)日：2020-02-04

申请号：US15533290

申请日：2015-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Anthony J. Sabelli ,  Jennifer F. Shumacher ,  Yanina Shkel ,  Brian J. Stankiewicz ,  Glenn E. Casner ,  John A. Wheatley ,  Andrew P. Bonifas ,  Ravishankar Sivalingam

IPC: G06K9/00 ,  G01V15/00 ,  G06T7/41 ,  G06T7/00

Abstract: Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.

公开(公告)号：US10331411B2

公开(公告)日：2019-06-25

申请号：US15532537

申请日：2015-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jennifer F. Schumacher ,  Glenn E. Casner ,  Yanina Shkel ,  Andrew P. Bonifas ,  Anthony J. Sabelli ,  Brian J. Stankiewicz ,  John A. Wheatley ,  Ravishankar Sivalingam ,  Robert W. Shannon

IPC: G06F7/58

Abstract: Systems and methods for generating random bits by using physical variations present in material samples are provided. Initial random bit streams are derived from measured material properties for the material samples. In some cases, secondary random bit streams are generated by applying a randomness extraction algorithm to the derived initial random bit streams.

公开(公告)号：US20180364984A1

公开(公告)日：2018-12-20

申请号：US15532537

申请日：2015-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jennifer F. Schumacher ,  Glenn E. Casner ,  Yanina Shkel ,  Andrew P. Bonifas ,  Anthony J. Sabelli ,  Brian J. Stankiewicz ,  John A. Wheatley ,  Ravishankar Sivalingam ,  Robert W. Shannon

IPC: G06F7/58

CPC classification number: G06F7/588

Abstract: Systems and methods for generating random bits by using physical variations present in material samples are provided. Initial random bit streams are derived from measured material properties for the material samples. In some cases, secondary random bit streams are generated by applying a randomness extraction algorithm to the derived initial random bit streams.

公开(公告)号：US20170363772A1

公开(公告)日：2017-12-21

申请号：US15533290

申请日：2015-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Anthony J. Sabelli ,  Jennifer F. Shumacher ,  Yanina Shkel ,  Brian J. Stankiewicz ,  Glenn E. Casner ,  John A. Wheatley ,  Andrew P. Bonifas ,  Ravishankar Sivalingam

IPC: G01V15/00 ,  G06T7/41 ,  G06T7/00

CPC classification number: G01V15/00 ,  G03G15/00 ,  G03G21/04 ,  G06Q30/018 ,  G06T7/0006 ,  G06T7/001 ,  G06T7/41 ,  H04N5/2256

Abstract: Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.