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System for reliable digital recording on unreliable magnetic media
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Method for authenticating literature
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Merchandise verification and information system
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Image dissecting document verification system
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Document validation system
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Non-counterfeitable document system
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Document authentication method
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System for verifying authenticity of various articles
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Programmable sensor aperture
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Device authentication system for on and off line use
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Merchandise verification and information system
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Magnetic characteristic identification system
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Bi-stable paper separator
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Secure card and sensing system
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Weighted-pixel characteristic sensing system
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Verification system for document substance and content
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Verification system for document substance and content
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System of issuing secure documents of various denomination
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Operator interactive device verification system
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Merchandise verification and information system
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