Title :
A narrow track MR head for high density tape recording
Author :
Okabe, A. ; Kagawa, K. ; Okazaki, Y. ; Yaoi, T. ; Takiguchi, M. ; Sugawara, N. ; Ochiai, Y. ; Hashimoto, M. ; Negoro, Y. ; Kano, H. ; Hayashi, K.
Author_Institution :
Res. Center, Sony Corp., Yokohama, Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
In this work, the performance of a narrow track MR head/MP tape recording system was evaluated focusing on the MR head saturation. Readback density of 0.65 Gbits/in2 was attained with reasonable SNR of 18.2 dB using a 5 μm trackwidth MR head and thin layer MP tape. Saturation at low densities was suppressed by the selection of a run length limited 8/10 modulation code. This result suggests that the excellent performance of the narrow track MR head could increase areal density in tape recording, and would steer the development of particulate tape media toward reduction of magnetization thickness product and improvement of media noise characteristics
Keywords :
magnetic heads; magnetic recording noise; magnetoresistive devices; modulation coding; runlength codes; SNR; areal density; high density tape recording; magnetization thickness product; magnetoresistive head; metal particulate tape; narrow track MR head; noise; readback density; run length limited modulation code; saturation; Coatings; Disk recording; Finite impulse response filter; Magnetic heads; Magnetization; Magnetoresistance; Modulation coding; Noise reduction; Random sequences; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
