Method and apparatus for embedding information in an image

A method and apparatus for embedding information in an image during relative movement between a print medium and an ink jet print head is provided. A plurality of first lines are printed and a plurality of second lines are printed. Each of the first lines includes a plurality of first dots and a plu...

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Bibliographische Detailangaben
Hauptverfasser:	CAMPAGNA MATTHEW J, SANCHEZ LUIS A, HANSEN GARY G, CORDERY ROBERT A, NAMBUDIRI EASWARAN
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CHECKING-DEVICES CORRECTION OF TYPOGRAPHICAL ERRORS DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FARE-REGISTERING APPARATUS FILES FRANKING APPARATUS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING SELECTIVE PRINTING MECHANISMS SPECIAL PRINTED MATTER STAMPS TICKET-ISSUING APPARATUS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method and apparatus for embedding information in an image during relative movement between a print medium and an ink jet print head is provided. A plurality of first lines are printed and a plurality of second lines are printed. Each of the first lines includes a plurality of first dots and a plurality of second dots offset from the first dots by a first amount, and each of the second lines includes a plurality of third dots and a plurality of fourth dots offset from the third dots by a second amount different than the first amount. The information is encoded in the image using an encoding scheme in which the first lines represent a first value in the encoding scheme and the second lines represent a second value in the encoding scheme.