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

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3036

Lastpage

3038

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.490261

Filename

490261