Data storage related with writing and retrieving requires high storage capacity, fast transfer rate and less access time. Today any data storage system cannot satisfy all of these conditions, however holographic data storage system can perform faster data transfer rate because it is a page oriented memory system using volume hologram in writing and retrieving data. System can be constructed without mechanically actuating part therefore fast data transfer rate and high storage capacity about 1Tb/cm3 can be realized. In this paper, storage capacity increased and stable data retrieving are realized in holographic data storage system. Thereby, we propose data pattern recognition by wavelet transform and fuzzy system in holographic data storage system.[1]

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