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:
Jan. 03, 2012
Filed:
Oct. 24, 2006
Christof Ballweg, VS-Villingen, DE;
Joachim Knittel, Tuttlingen, DE;
Christof Ballweg, VS-Villingen, DE;
Joachim Knittel, Tuttlingen, DE;
Thomson Licensing, Boulogne Billancourt, FR;
Abstract
A method for reading data from a holographic storage medium is described. An image sensor is used for acquiring data. The holographic storage medium, which contains binary information in the form of at least one two-dimensional data page, is illuminated by means of a laser beam bundle and the retrieved data page is read out by means of the image sensor, for which purpose the latter is provided with an activatable area having a multiplicity of pixels. It achieves the object of configuring a method of this type in such a way that the read-out of the information is accelerated with a number of pixels remaining the same. For this purpose, the activatable area of the image sensor is subdivided into different regions which are in each case assigned to a region having a specific intensity of the light beam. In this case, a longer exposure time and/or a higher sensitivity are/is determined for regions assigned to regions having lower intensity than for regions assigned to regions having a higher intensity.