Title :
Variable length RLL codes for high-density optical recording
Author :
Shimpuku, Yoshihide ; Ino, Hiroyuki ; Chaki, Yasuyuki ; Nakagawa, Toshiyuki
Author_Institution :
Corp. Res. Lab., Sony Corp., Tokyo, Japan
Abstract :
The channel coding methods with the parameters of (4,k;2,5;r) have a large minimum separation between transitions (Tmin) and have extra codes for suppressing digital sum value (DSV) of coding digits. A stable detector is realized by applying suitable equalization for optical recording characteristics. By use of this coding method, a low error-rate detection is achieved on high density optical disks
Keywords :
block codes; channel coding; equalisers; modulation coding; optical disc storage; optical transfer function; runlength codes; variable length codes; channel coding methods; coding digits; coding method; digital sum value; equalization; extra codes; high density optical disks; high-density optical recording; large minimum separation; low error-rate detection; stable detector; transitions; variable five modulation; variable length RLL codes; Channel coding; Frequency; Laser noise; Optical distortion; Optical harmonic generation; Optical noise; Optical recording; Optical sensors; Signal to noise ratio; Transfer functions;
Conference_Titel :
Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-1825-0
DOI :
10.1109/ICC.1994.368722
