Enhancement of Speed Margins for $16\times$ Digital Versatile Disc-Random Access Memory

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概要

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• We have evaluated the speed margins of write/read $16\times$ digital versatile disc-random access memory (DVD-RAM) test discs using write strategies for $6--16\times$ constant angular velocity (CAV) control. Our approach is to determine the writing parameters for the middle zones by interpolating the zone numbers. Using this interpolation strategy, we successfully obtained overwrite jitter values of less than 8% and bit error rates of less than $10^{-5}$ in $6--16\times$ DVD-RAM. Moreover, we confirmed that the speed margins were $\pm 20$% for a $6--16\times$ CAV.

• 2006-02-15

著者

• Minemura Hiroyuki

  Storage Technology Research Center, Central Research Laboratory, Hitachi Ltd., 292 Yoshida-cho, Totsuka-ku, Yokohama 244-0817, Japan

• Watanabe Koichi

  Storage Technology Research Center, Central Research Laboratory, Hitachi, Ltd., 292 Yoshida-cho, Totsuka-ku, Yokohama 244-0817, Japan

• Iimura Makoto

  Hitachi Maxell, Ltd., 6139-1 Ohnogo, Mitsukaido, Ibaraki 300-2595, Japan

• Miyamoto Makoto

  Hitachi Maxell, Ltd., 6139-1 Ohnogo, Mitsukaido, Ibaraki 300-2595, Japan

関連論文

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• High-Speed Write/Read Techniques for Blu-ray Write-Once Discs
• Read/Write Technology for 50 GB/layer at 100 Mbps
• Crosstalk Cancellation for 50-GB/Layer Optical Recording
• Recordable Multilayer Super-Resolution Optical Disc Realized Using Discrete-Track Three-Dimensional Pit Selection
• Fabrication of Discs for Three-Dimensional Pit Selection Using Damascene Process
• Enhancement of Speed Margins for $16\times$ Digital Versatile Disc-Random Access Memory
• One-Laser-Two-Beam Method for Double Overwrite Speed in Rewritable Phase-Change Optical Discs
• Sub-Terabyte-Data-Capacity Optical Discs Realized by Three-Dimensional Pit Selection

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