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High data rate recording for HDTV digital VTR

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4 Author(s)
Umemoto, M. ; Hitachi Ltd., Tokyo, Japan ; Eto, Y. ; Sawamura, H. ; Katayama, H.

A metal-particle tape and sputtered amorphous-on-ferrite (SAF) head with a lamination structure are examined at 150 Mb/s. The C/N of 31 dB achieved at this high bit rate ensures a word error rate of less than 5×10-5. It is shown to be feasible to record at a bit rate of 180 Mb/s (135 kb/cm). Flying AC erase using an SAF head at a frequency lower than half of the bit frequency is effective for this type of high-data-rate recorder. These recording techniques establish the fundamental feasibility of digital video tape recorders for high-definition TV at 1.2 Gb/s

Published in:

Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 6 )