Invention Grant
- Patent Title: Method for acquiring data by means of an image sensor
- Patent Title (中): 通过图像传感器采集数据的方法
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Application No.: US11585470Application Date: 2006-10-24
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Publication No.: US08089540B2Publication Date: 2012-01-03
- Inventor: Christof Ballweg , Joachim Knittel
- Applicant: Christof Ballweg , Joachim Knittel
- Applicant Address: FR Boulogne Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne Billancourt
- Agent Robert D. Shedd; Patricia A. Verlangieri
- Priority: EP05109991 20051026
- Main IPC: H04N5/335
- IPC: H04N5/335 ; H04N3/28 ; H04N9/68 ; H04N5/235

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.
Public/Granted literature
- US20070091186A1 Method for acquiring data by means of an image sensor Public/Granted day:2007-04-26
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