Information carrier, and system for positioning such an information carrier in a reading and/or writing apparatus
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United States of America Patent
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Oct 7, 2008
Grant Date -
Sep 20, 2007
app pub date -
Apr 21, 2005
filing date -
Apr 28, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an information carrier (101) intended to be read and/or written by a periodic array of light spots, said information carrier (101) comprising a data area (105) defined by a set of elementary data areas, a first periodic structure (108) intended to interfere with said periodic array of light spots for generating a first moire pattern, a second periodic structure (109) intended to interfere with said periodic array of light spots for generating a second moire pattern, said second periodic structure (109) being arranged perpendicularly to said first periodic structure (108). The invention also relates to an apparatus for reading and/or writing said information carrier (101).
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