Marking and authenticating articles
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United States of America Patent
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May 22, 2007
Grant Date -
Jan 16, 2003
app pub date -
Jun 6, 2002
filing date -
Jun 6, 2001
priority date (Note) -
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Abstract
Disclosed herein are methods and apparatus for providing markings upon objects, including the read side of an optical information media, where the markings do not substantially interfere with object, including the use of the optical information media. This invention discloses use of a coating, marking schemes, printing of markings with UV light, as well as methods and apparatus for reading and deciphering said marking. Included is an authentication scheme, where the marking may be used as a lock to limit access to information contained in an optical information media.
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