INFORMATION IDENTIFICATION SHEET CAPABLE OF DISCRIMINATING IDENTITY AND ITS INFORMATION IDENTIFICATION METHOD

PURPOSE:To obtain the information identification sheet excellent for prevention of forgery or alteration and its information identification method. CONSTITUTION:Random pattern information of different kinds of fibers is read or recorded and the recording of the random pattern is repetitively identif...

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Bibliographic Details
Main Authors TAWARA YUKIO, ITO KAZUHIKO, MORISHITA SADAO, MATSUSHITA TOSHIHIKO
Format Patent
LanguageEnglish
Published 04.02.1994
Edition5
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PURPOSE:To obtain the information identification sheet excellent for prevention of forgery or alteration and its information identification method. CONSTITUTION:Random pattern information of different kinds of fibers is read or recorded and the recording of the random pattern is repetitively identified by blending a specific different kind of fibers to the information identification sheet and giving an energy acting on the major component fibers or the specific different kind of fibers. Thus, the random pattern information is coded for each information identification sheet as a paper-print like a fingerprint for a person thereby providing the excellent effect for preventing forgery or alternation.
Bibliography:Application Number: JP19920182564