| 摘要 |
In a storing mode of an apparatus for sequentially storing and retrieving digital page data, a first/second complex reference beam and a modulated/second signal beam converge on a first/second 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.
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