Eastman-kodak Company

Myra T Olm

Robert D Wilson

Thomas D Pawlik

Xin Wen

Joseph C Deaton

Donald L Black

Richard L Daubendiek

Timothy R Gersey

Joseph G Lighthouse

Thomas J Widzinski

Judith A Bose

Erwin Ludwig Allmann

Eric L Bell

Woodrow G McDugle, Jr

Raymond S Eachus

Gary M Spinelli

Sherrill A Puckett

Alfred P Marchetti

Traci Y Kuromoto

Roger A Bryant

Ralph W Jones, Jr

Mark P Henry

Mridula Nair

Anthony Adin

Kenneth Joseph Reed

Tamara K Jones

Joseph Salvatore Sedita

Jerzy Z Mydlarz

David F Jennings

John D Mee

Stephen A Hershey

David E Fenton

John E Keevert

John D Lewis

Anthony D Gingello

Jeffrey C Hansen

David A Hodder

Richard E Beal

Marian S Henry

James R Buntaine

Gaile Antoinette Janusonis

Sharon Gould

Elizabeth K Lelental

A method for detecting reorigination of barcodes () includes providing a multisegment barcode which contains data; capturing an image of the multisegment barcode; locating the barcode in the image; decoding the barcode; detecting individual segments in the multisegment barcode; and authenticating the barcode if the individual segments match the original barcode.

Method for detecting reorgination of barcodes

A method of enabling an authenticating device () includes providing an enabling target (); measuring one or more attributes of the enabling target with the authenticating device; comparing at least one measured attribute with a predetermined expected value; enabling the authenticating device when the at least one measured attribute matches the predetermined expected value; and operating the authenticating device.

Authentication device with access control and calibration

A system for detecting reproduction of barcodes () includes 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; detecting copy introduced changes in the copy-evident background; and authenticating the barcode if the copy-evident background has not been copied.

System for detecting reorigination of barcodes

A method for detecting reproduction of barcodes () includes 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; detecting copy introduced changes in the copy-evident background; and authenticating the barcode if the copy-evident background has not been copied.

Decoder for barcodes with anti-copy feature

A method for authenticating security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; establishing an area within the image; counting a number of pixels within the area to determine a second score; calculating a ratio of the second score to the first score; and if the ratio is above a predetermined threshold the security marker is authenticated.

Method of authenticating security marker

A method to deactivate a security measure includes applying a first covert optically active security marker to a product or document; completing a transaction for the product or document; and applying a second optically active security marker to the product or document which indicates completion of the transaction.

Deactivation of a security feature

A method for detecting and viewing invisible indicia includes illuminating the invisible indicia with radiation of a first wavelength with an illumination source; detecting emitted light from the invisible indicia at a second wavelength with a sensor array; eliminating reflected radiation at the first wavelength; focusing an image of the invisible indicia on the sensor array; displaying the image of the invisible indicia; spacing the sensor array at a fixed distance from the invisible indicia with a spacer; and adjusting sensitivity of the sensor array.

Method for viewing invisible indicia

A system for enabling an authenticating device includes an enabling target (); measuring one or more attributes of the enabling target with the authenticating device; comparing at least one measured attribute with a predetermined expected value; enabling the authenticating device when the at least one measured attribute matches the predetermined expected value; and operating the authenticating device.

A method for detecting authorized security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; eroding the image data; counting the pixels which remain at or above the predetermined brightness level after erosion to determine a second score; calculating a ratio of the second score to the first score; and producing a first authentication signal if the ratio meets a first predetermined criteria.

Image algorithms to reject undesired image features

An article comprises one or more porous particles. Each porous particle comprises a polymer that provides a continuous solid phase including an external particle surface, and first and second discrete pores that are isolated from each other and dispersed within the continuous solid phase. The porous particle further comprises a first marker material present in the first discrete pores, and a second marker material that is detectably different from the first marker material and is present within the second discrete pores. The marker materials can provide a means for identifying documents, clothing, or other articles as genuine, and providing a detectable security system.

Articles with porous particles for security purposes

An apparatus for eliminating background noise from a security marker authenticating system including a first sensor for capturing an image of a background of the security marker; a light source for illuminating the security marker; the first sensor or a second sensor or both captures a plurality images of the optical response of the security marker; a computer which averages the plurality of optical response images; the computer smoothes the background image; and the computer subtracts the smoothed background image from the average of the plurality of optical response images.

Apparatus for eliminating background noise

A method of eliminating background noise from a system for authenticating security markers includes capturing an image of a background of the security marker; illuminating the security marker; capturing a plurality of images of the optical response of the security marker; averaging the plurality of optical response images; smoothing the background image; and subtracting the smoothed background image from the average of the plurality of optical response images.

Method of eliminating background noise

A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula:[()/()]&#x3e;1wherein x and z are the volume-weighted mean equivalent-spherical diameters of the two particle distributions and Sand Sare the standard deviations of the same two distributions.

Size dependent marker codes

A labeling method for marking a product with invisible information. The label includes a removable laminate formed from a light transmissive layer, and a light transmissive adhesive that detachably affixes the label to a product. The label includes an invisible marker that contains information, detectable by light of selected wavelength. The amount of marker selected is sufficient to allow information in the marker to be detected only when the laminate is affixed over a surface with a selected optical background. The label laminate is removed from the surface of the product and affixed to a surface having the selected optical background and is exposed to light that renders the information in the marker detectable. The method allows covert information in the label laminate to be reliably detected and read with the use of minimal quantities of marker material.

Security label laminate and method of labeling

A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula:[()/(S)]wherein x and z are the volume-weighted mean equivalent-spherical diameters of the two particle distributions and Sand Sare the standard deviations of the same two distributions. The emissive materials are placed in or on an item. The emissive materials are excited with electromagnetic radiation in one or more specified spectral bands. The electromagnetic radiation is detected in one or more spectral bands from the emissive materials in an image-wise fashion. The attributes of the image are analyzed and characterized and are compared to authentication criteria to determine the authenticity of the marked item.

Growing community of inventors

Webster, NY, United States of America

Myra T Olm