Patent ID: 8089540
Filing Date: 2012-01-03
Classification: H01L

Abstract:
1. A method for acquiring data from a holographic storage medium by means of an image sensor having an activatable area having a multiplicity of pixels, wherein the holographic storage medium contains binary information in the form of at least one two dimensional data page, and wherein the data page is retrieved from the holographic storage medium by means of a laser beam bundle and the retrieved data page is read out by means of the image sensor, wherein the activatable area is subdivided, into two or more continuous data regions containing a multiplicity of pixels, the data regions being read separately from one another with different parameters and reading of the data regions is started simultaneously, wherein different data regions are exposed for different lengths of time before they are read, and wherein the data regions having a short exposure time are already read when the data regions having a long exposure time are still being illuminated.