Channel data retrieval in page-based holographic data storage

作     者：Hwang, E Yoon, P Kim, H Park, J Park, J Kang, YJ 

作者机构：Daewoo Elect Corp Digital Media Lab Kunpo 435733 Kyonggi South Korea Hanyang Univ Ansan 426791 Kyonggi South Korea Seoul Natl Univ Sch Mech & Aerosp Engn Seoul 151742 South Korea 

出 版 物：《JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS》 (日本应用物理学杂志，第二分册)

年 卷 期：2006年第45卷第2B期

页      面：1285-1287页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

主　　题：holographic data storage page-oriented optical memory channel decoder channel equalizer two-dimensional modulation code three-dimensional error correction code 

摘      要：A channel data retrieval scheme for page-based holographic data storage has been developed. It includes several signal-processing blocks for retrieving data reliably under noisy condition, namely, a frame grabber for capturing data adaptively in a rotating disk, a mark detector for tracing the data location, an equalizer for compensating interference, a two-dimensional modulation decoder for suppressing errors, and a three-dimensional error correction decoder for correcting errors generated by the holographic storage channel. The proposed scheme has been implemented with a field-programmable gate array chip and applied to actual data retrieval from holographic data storage. With the proposed channel data retrieval hardware, the user video data is successfully reconstructed from the holographic disk, which contains video data as holograms.