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AssigneeThomson Licensing
InventorsFrank Przygodda, Oliver Malki, Dietmar Braeuer
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Intensity profile correction for data pages for holographic storage The present invention relates to a method for recording data pages in a holographic recording medium, and more specifically to a method for compensating for sensitivity variations of the holographic material of the holographic recording medium. According to the invention, a method for recording data pages on a holographic recording medium has the steps of: modulating a light beam with a spatial light modulator to generate a data page with data to be recorded, and applying a compensation profile to the data pages during recording for reducing contrast variations in the reconstructed data pages, wherein the compensation profile is determined from the irradiation history at the recording position and the sensitivity curve of the material of the holographic recording medium.
Method for recording data pages on a holographic recording medium, having the steps of:
Holographic storage system, with a spatial light modulator for modulating a light beam in accordance with data to be recorded on a holographic recording medium, having a contrast variation compensator for applying a compensation profile to the data pages during recording for reducing contrast variations in the reconstructed data pages, wherein the compensation profile is determined by the irradiation history at the recording position and the sensitivity curve of the material of the holographic recording medium.
Dependencies are inferred from the claim text.