MECHANICALLY READABLE SYSTEM USING PREMARKED SUBSTRATE
First Claim
1. A printable substrate for encoding and readout of coded ink symbols, comprising a substrate and a plurality of repetitive patterns thereon, each such pattern consisting of at least four discrete areas each area having an ink of one coded ink component which emits radiation in a predetermined wavelength range on irradiation with a shorter wavelength radiation, each predetermined wavelength range being different from the wavelength range of the radiation from any other discrete area in the pattern repetition, said substrate being adapted to have certain portions of said repetitive patterns blocked out to encode it in accordance with a predetermined information code, thereby permitting simultaneous reading of a plurality of components in a pattern by wavelength discrimination, to read out said encoded ink symbols.
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Abstract
An encoding means comprising a substrate having a plurality of repetitive patterns, each having a plurality of areas of different photoluminescent material and each area overprinted with stylized alphanumerie characters or coded patterns of opaque ink.
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Citations
5 Claims
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1. A printable substrate for encoding and readout of coded ink symbols, comprising a substrate and a plurality of repetitive patterns thereon, each such pattern consisting of at least four discrete areas each area having an ink of one coded ink component which emits radiation in a predetermined wavelength range on irradiation with a shorter wavelength radiation, each predetermined wavelength range being different from the wavelength range of the radiation from any other discrete area in the pattern repetition, said substrate being adapted to have certain portions of said repetitive patterns blocked out to encode it in accordance with a predetermined information code, thereby permitting simultaneous reading of a plurality of components in a pattern by wavelength discrimination, to read out said encoded ink symbols.
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2. A substrate according to claim 1 in which the printable substrate is paper, and the repetitive pattern is a pattern of stripes.
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3. A substrate according to claim 2 in which at least one of the photoluminescent components is a chelate of a lanthanide ion.
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4. A substrate according to claim 2 in which means are provided for accurate registration of the stripes on stacked sheets of the paper substrate.
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5. A method for processing information which comprises encoding the substrate of claim 1, and thereafter reading said encoded substrate.
Specification
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- Resources
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Current AssigneeRobert H. Postal
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Original AssigneeRobert H. Postal
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InventorsPostal, Robert H.
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Primary Examiner(s)Cook, Daryl W.
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Application NumberUS05/234,430Time in Patent Office673 DaysField of Search235/61.12N,61.11E 340/146.3B,146.3A,146.3KUS Class Current235/491CPC Class CodesG06K 1/12 otherwise than by punchingG06V 30/224 of printed characters havin...
