Quad density optical data system

Details Quad density optical data system Quad density optical data system

G - Physics

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G06K 9/20 (2006.01) G06K 7/14 (2006.01) G06K 19/14 (2006.01) G11B 7/0033 (2006.01) G11B 7/013 (2006.01) G11B 7/13 (2006.01)

Patent

CA 1229916

Abstract An optical data storage and retrieval system using a length of optical recording material in which data in the form of microscopic spots is disposed in cells forming a regularly spaced grid. While the material is being moved in a lengthwise direction by a transport, rows of cells are being read by a linear CCD array one row at a time. A servo system ad- vances the material so that successive rows can be read, while a second servo adjusts the position of the material in the crosswise direction for proper alignment with the CCD array.

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