| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for storing and retrieving a sequence of digital page data. SOLUTION: In a storing mode, a first/second complex reference beam and a modulated object beam are converged on a storing location to generate a sequence of first/second interference patterns to be sequentially stored on a holographic medium. A shift selectivity of the first complex reference beam is larger than that of the second complex reference beam so that the second interference pattern is used as a servo pattern to sequentially determine where the first interference patterns have been stored. COPYRIGHT: (C)2005,JPO&NCIPI
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