High density digital magnetic recording using class I partial response and 8-10 block code

Author

Fukuda, S. ; Hirasaka, H. ; Okazaki, Y. ; Honda, J.

Author_Institution

Adv. Dev. Lab., Sony Corp., Tokyo, Japan

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3039

Lastpage

3041

Abstract

Improvements in readback heads and tapes have brought a readback-signal amplitude at a wavelength of 0.33 μm 15 dB higher than that obtainable by a commercial digital data storage (DDS) system. An investigation to determine the most effective channel for the newest heads and tapes established that a class I partial response channel combined with DC-free 8-10 block code and maximum likelihood detection was optimum. Based on this channel and these heads and tapes, the DDS3 format was derived. It has an areal density of 530 Gb/m² and the linear density of 4.8 Mb/m

Keywords

block codes; digital magnetic recording; magnetic heads; magnetic recording noise; magnetic tape storage; magnetic tapes; maximum likelihood detection; 0.33 micron; DC-free 8-10 block code; DDS3 format; SNR; class I partial response channel; digital magnetic recording; ferrite head; high density magnetic recording; maximum likelihood detection; metal-particulate tape; readback heads; Block codes; Digital magnetic recording; Ferrites; Frequency; Magnetic devices; Magnetic heads; Magnetic recording; Memory; Noise measurement; Signal to noise ratio;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.490262

Filename

490262