Title :
8/10PR1ML for high density and high rate tape storage systems
Author :
Ino, Hiroyuki ; Shimpuku, Yoshihide ; Hirose, Toshihiko
Author_Institution :
Res. Center, Sony Corp., Tokyo, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
We applied class-1 partial response maximum likelihood (PR1ML) combined with a dc-free code rate of 8/10 (8/10PR1ML) in tape storage systems in which linear density was higher than 115 kbpi and channel rate was above 50 Mbps. This paper describes the performance of 8/10PR1ML in simulation and in practice, and of a parallel Viterbi detector specialized for PR1ML. A bit error rate of less than 10-6 was achieved at an areal density 265 Mbpi2 in practice. The maximum clock frequency of the parallel Viterbi detector was MIN. 75 MHz, TYP. 120 MHz and its size was less than 1200 gates
Keywords :
Viterbi detection; magnetic tape storage; maximum likelihood detection; partial response channels; 50 Mbit/s; 75 to 120 MHz; 8/10PR1ML; DC-free code rate; areal density; bit error rate; channel rate; class-1 partial response maximum likelihood; clock frequency; linear density; parallel Viterbi detector; simulation; tape storage system; Bit error rate; Computational modeling; Computer simulation; Detectors; Error analysis; Magnetic recording; Maximum likelihood detection; Prototypes; Transfer functions; Viterbi algorithm;
Journal_Title :
Magnetics, IEEE Transactions on
