The path from a digital versatile disc (DVD) using a red laser to a DVD using a blue laser

被引：27

作者：

Yokogawa, F ^{[1
]}

Ohsawa, S ^{[1
]}

Iida, T ^{[1
]}

Araki, Y ^{[1
]}

Yamamoto, K ^{[1
]}

Moriyama, Y ^{[1
]}

机构：

[1] Pioneer Elect Corp, Corp Res & Dev Labs, Tsurugashima, Saitama 35002, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 4B期

关键词：

DVD; blue laser; photobleachable dye layer; electron beam recorder; Viterbi decoder; liquid crystal tilt servo; cross talk cancel system; tangential adaptive equalizer;

D O I：

10.1143/JJAP.37.2176

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The next generation digital versatile disc(DVD) using a blue laser is required to have 15 Gbytes capacity so that it can reproduce motion picture expert group 2(MPEG2) video stream with a main profile at a high level format for a maximum of 133 min. To achieve this goal, further improvements are necessary in both the recording and the reproducing systems. For the recording system the authors developed a super: resolution recording material and an electron beam recording system. For the reproducing system the authors devised four technologies: a Viterbi decoder, a liquid crystal tilt servo system, a cross talk cancel system and a tangential adaptive equalizer. By combining these with a pick up head of 430 nm wavelength/0.6 NA lens and a 0.6-mm-thick substrate, the authors confirmed sufficient tilt mar ins in the case of 12.7 Gbytes (radial tilt margin: +/-1.61 degrees, tangential tilt margin: +/-0.48 degrees). Our next target is to work on the 15 Gbytes capacity.

引用

页码：2176 / 2178

页数：3