Identification document including embedded data

The present invention relates to coordinating information carried by a digital watermark and other machine-readable codes. In one implementation, an identification card includes a digital watermark and a barcode encoded with information. The digital watermark includes a hash of the barcode informati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RHOADS GEOFFREY B, HAWES JONATHAN L, DAVIS BRUCE L, BRUNDAGE TRENT J, HANNIGAN BRETT T
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE BOOK COVERS BOOKBINDING CALCULATING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FILES GENERATING RANDOM NUMBERS HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING HANDLING RECORD CARRIERS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS REGISTERING OR INDICATING THE WORKING OF MACHINES SELECTING SPECIAL PRINTED MATTER SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TIME OR ATTENDANCE REGISTERS TRANSPORTING VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	The present invention relates to coordinating information carried by a digital watermark and other machine-readable codes. In one implementation, an identification card includes a digital watermark and a barcode encoded with information. The digital watermark includes a hash of the barcode information. To determine authenticity of the identification card, the hash is compared with the barcode information. The card is considered authentic when the hash and barcode information match or otherwise satisfy a predetermined relationship.