The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2008
Filed:
Apr. 21, 2005
Thomas Jan DE Hoog, Eindhoven, NL;
Robert Frans Maria Hendriks, Eindhoven, NL;
Aukje Arianne Annette Kastelijn, Eindhoven, NL;
Peter Van Der Walle, Eindhoven, NL;
Thomas Jan De Hoog, Eindhoven, NL;
Robert Frans Maria Hendriks, Eindhoven, NL;
Aukje Arianne Annette Kastelijn, Eindhoven, NL;
Peter Van Der Walle, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to an information carrier () intended to be read and/or written by a periodic array of light spots, said information carrier () comprising a data area () defined by a set of elementary data areas, a first periodic structure () intended to interfere with said periodic array of light spots for generating a first moiré pattern, a second periodic structure () intended to interfere with said periodic array of light spots for generating a second moiré pattern, said second periodic structure () being arranged perpendicularly to said first periodic structure (). The invention also relates to an apparatus for reading and/or writing said information carrier ().