HOLOGRAPHIC RECORDING MEDIUM AND PICKUP FOR THIS MEDIUM, HOLOGRAPHIC STORAGE SYSTEM, AND METHOD FOR RECORDING DATA ON THIS MEDIUM AND READING DATA FROM THIS MEDIUM

摘要

The present invention is adapted to store additional information for the recorded hologram holographic recording medium ( 9 ) and to the graphic pickup (1) alone for a holographic storage system for use with the holographic recording medium (9) . According to the present invention , the holographic recording medium castle 9 , alone storing holograms and a graphics layer 94 , the hole of the hologram recording medium recording the graphic and / or a servo layer for positioning a light beam for reading ( includes a 92 ), wherein the servo layer 92 can be a recordable or rewritable . Alone for use with such a holographic recording medium 9 with the graphics pickup (1) alone is contained the light source 13 for recording additional data in the servo layer 92 of the graphic medium (9) .