High-density reproduction characteristics with MR head for rotary drum in helical-scan tape system

Author

Muto, Kazutoshi ; Majima, Keigo ; Taguchi, Ryo ; Uehara, Toshihiro ; Okuda, Haruo ; Kondo, Morio ; Shinjo, Yasuhiko ; Hasegawa, Norio

Author_Institution

NHK Sci. & Tech. Res. Labs., Tokyo, Japan

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1912

Lastpage

1914

Abstract

A magneto-resistive (MR) head for a rotary drum in a helical-scan tape system has been developed to realize a high-capacity tape storage system with a high data transfer rate that uses a small cassette. Also, various experimental ME (Metal Evaporated) tapes whose magnetic layer thickness is 0.1 μm or less (thin-magnetic-layer ME tapes) for the MR head has been fabricated. Reproduction characteristics of the MR head with the ME tapes was evaluated. The output voltage of the MR head was 20 times that of a conventional inductive head. An areal recording density of 1.2 Gbit/inch² was found to be possible combining the MR head with the thin-magnetic-layer ME tapes whose magnetic layer thickness was 0.09 μm

Keywords

digital magnetic recording; magnetic heads; magnetic tape storage; magnetoresistive devices; 0.09 micron; MR head; areal recording density; data transfer rate; helical-scan tape system; high-capacity tape storage system; high-density reproduction characteristics; magnetic layer thickness; output voltage; reproduction characteristics; rotary drum; Digital TV; Digital magnetic recording; Magnetic heads; Magnetic noise; Magnetic recording; Protection; Signal to noise ratio; Substrates; TV broadcasting; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951006

Filename

951006