Title :
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
fDate :
7/1/2001 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
