New method of calibrating adaptive writing pulses for digital versatile disc random access memory (DVD-RAM) 4.7 GB drive

被引：8

作者：

Furumiya, S

Fukushima, T

Yamazaki, Y

机构：

[1] Matsushita Elect Ind Co Ltd, Opt Disk Syst Dev Ctr, Kadoma, Osaka 5718501, Japan

[2] Matsushita Elect Ind Co Ltd, AVC Co, DVD RAM Business Dept, Kadoma, Osaka 5718504, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2001年 / 40卷 / 3B期

关键词：

DVD-RAM; mark edge recording; adaptive writing pulse; edge shift; test pattern; jitter minimizing (JM) method; TIA;

D O I：

10.1143/JJAP.40.1694

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, a new method of calibrating adaptive writing pulses suitable for installing into the digital versatile disc random access memory (DVD-RAM) 4.7 GB drive is described. To obtain a wider margin of write/read operation, it is desirable to optimize all adaptive parameters for every disk inserted into the drive. We propose the jitter minimizing (JM) method, which is characterized by using selected test patterns, detecting only jitter in the drive and applying a search algorithm to obtain bottom jitter. As a result of optimizing all parameters by JM, the total calibration time is 4.8 s with the accuracy of less than or equal to 1 ns, and overwrite jitter of random data is 8.6% at the drive. It is proved that JM offers the same results as the measurement by the time interval analyzer (TIA), uses small-sized hardware and exhibits satisfactory performance for application in commercial drives.

引用

页码：1694 / 1697

页数：4