G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/24 (2006.01) B41M 3/10 (2006.01) B41M 3/14 (2006.01) B42D 15/00 (2006.01) B42D 15/10 (2006.01) G06T 1/00 (2006.01) G07F 7/08 (2006.01) G11B 7/244 (2006.01) G11B 7/247 (2006.01) G11B 7/249 (2006.01) G11B 20/00 (2006.01) G11B 23/00 (2006.01) G11B 23/28 (2006.01) G11B 23/30 (2006.01) G11B 23/38 (2006.01) H04L 9/00 (2006.01) H04N 1/00 (2006.01) H04N 1/32 (2006.01)
Patent
CA 2449171
Methods and apparatus for providing markings on objects, such as optical media (420) which do not interfer with the functionality of the object. The optical media (420) may have a portion, such as a central clamping area (422) which does not contain information. A mark (432) is transferred into this area through the use of a photomask. The mark (432) may be viewed in several ways including by placement over a fluorescent background (414) and irradiation with a low intensity ultraviolet light (415). This technique increases the contrast of the image.
La présente invention concerne des procédés et des dispositifs de marquage d'objets, tels que des supports d'informations optiques (420) qui n'interfèrent pratiquement pas avec la fonctionnalité de l'objet. Le supports d'informations optiques (420) peut présenter une partie, telle qu'une surface utile centrale (422), ne contenant aucune information. Un marquage (432) est transféré sur cette surface utile à l'aide d'un masque photographique. Ce marquage (432) peut être visualisé de différentes manières, y compris par installation sur un fond fluorescent (414) puis exposition à un rayonnement ultraviolet (415) faible intensité. Cette technique permet d'augmenter le contraste de l'image
Afzal Robert S.
Berube Alison
Conroy Jeffrey L.
Lawandy Nabil M.
Smuk Andrei Y.
Goudreau Gage Dubuc
Spectra Systems Corporation
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