17 July 2007 New DPD tracking servo method by signal processing for high-density ROM discs
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Proceedings Volume 6620, Optical Data Storage 2007; 66200W (2007) https://doi.org/10.1117/12.738917
Event: Optical Data Storage 2007, 2007, Portland, OR, United States
Abstract
Differential phase detection (DPD) is the most popular tracking error detection method for read-only optical discs (ROM discs). However, DPD tracking-error signals deteriorate for high-density discs such as over 30-GB Blu-ray discs (BDs) where zero-cross detection becomes inaccurate. To solve this problem, we propose a new zero-cross-detection-free DPD (ZF-DPD) method by applying the least-mean-square (LMS) algorithm adaptive equalizer. We experimentally confirmed its effectiveness for a high-density (33.3 GB/layer) four-layer BD-ROM disc.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Junya Shiraishi, Tsutomu Maruyama, Yoshihiro Takemoto, Isao Ichimura, Shoei Kobayashi, "New DPD tracking servo method by signal processing for high-density ROM discs", Proc. SPIE 6620, Optical Data Storage 2007, 66200W (17 July 2007); doi: 10.1117/12.738917; https://doi.org/10.1117/12.738917
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