Novel one-beam tracking detection method for dual-layer blu-ray discs

被引：6
|
作者：
Sano, K [1 ]
Yamasaki, F [1 ]
Arai, A [1 ]
Kadowaki, S [1 ]
机构：
[1] Matsushita Elect Ind Co Ltd, AV Core Technol Dev Ctr, Kadoma, Osaka 5718501, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 2B期
关键词：
optical disc; tracking error; one beam; detection; push-pull signal; recording boundary; objective lens displacement; Blu-ray; dual layer; stray light;
D O I：
10.1143/JJAP.45.1174
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, we propose a new advanced push-pull (APP) method as a new one-beam tracking detection method suitable for a dual-layer Blu-ray disc (BD) system. This method overcomes two issues. One of them is tracking error signal (TES) offset at the boundary between recorded tracks and unrecorded tracks, and the other is TES offset caused by the stray lights from the other layer of dual-layer discs. The new APP-TES is stable at the boundary in the dual-layer BD system, because the dividing area of a far-field pattern is optimized and the detecting areas are allocated to avoid stray lights from the other layer. Its stable characteristics are confirmed experimentally.
引用
收藏
页码：1174 / 1177
页数：4
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