Toshiyuki Fukushima
Panasonic
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Publication
Featured researches published by Toshiyuki Fukushima.
Japanese Journal of Applied Physics | 2001
Shigeru Furumiya; Toshiyuki Fukushima; Yukihiro Yamazaki
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 ≤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.
Archive | 2008
Motoshi Ito; Hiroshi Ueda; Toshiyuki Fukushima
Archive | 2001
Toshiyuki Fukushima; Motoshi Ito; Shinji Sasaki
Archive | 2002
Toshiyuki Fukushima; Motoyuki Itou; Hiroshi Ueda; 基志 伊藤; 宏 植田; 俊之 福島
Archive | 2001
Toshiyuki Fukushima; Hiroshi Ueda; Motoshi Ito; Kenji Takauchi
Archive | 2000
Toshiyuki Fukushima; Motoshi Ito; Shinji Sasaki
Archive | 2000
Toshiyuki Fukushima; Motoyuki Itou; Shinji Sasaki; 基志 伊藤; 真司 佐々木; 俊之 福島
Archive | 2002
Motoshi Ito; Hiroshi Ueda; Toshiyuki Fukushima
Archive | 2004
Toshiyuki Fukushima; Hiroshi Sugimoto; Shinji Sasaki
Archive | 2000
Toshiyuki Fukushima; Motoshi Ito; Shinji Sasaki
