Study on multi-level encoding flow for optical storage based on q-ary RLL

Changsheng Xie; Chun Liu; Haiwei Wang; Hao Huang

doi:10.1117/12.649643

15 September 2005 Study on multi-level encoding flow for optical storage based on q-ary RLL

Changsheng Xie, Chun Liu, Haiwei Wang, Hao Huang

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59660X (2005) https://doi.org/10.1117/12.649643
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

Multilevel recording has been demonstrated to significantly increase the linear densities achieved with standard methods of binary encoding in optical data storage systems. In this paper we introduce the theoretical concepts and practical coding aspects behind multilevel optical recording system. We show that there are three-stage coding flow and explain how to design and implement the encoder. As an example we give a 5th-power finite state transition diagram of q=8 RLL (2, 10) encoder and compute its adjacent matrix. Especially we discuss the implement method to quickly search decoding table of slider decoder by way of computing the least Hamming distance.

Citation Download Citation

Changsheng Xie, Chun Liu, Haiwei Wang, and Hao Huang "Study on multi-level encoding flow for optical storage based on q-ary RLL", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660X (15 September 2005); https://doi.org/10.1117/12.649643

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