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External Clocking PRML Magnetic Recording Channel for Discrete Track Media

Hiroaki YADA, Takamichi YAMAKOSHI, Noriyuki YAMAMOTO, Murat ERKOCEVIC, Nobuhiro HAYASHI

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Summary :

A novel external clocking magnetic disk recording channel is proposed and examined. Timing not only for data recovery but for recording is given by a bit clock which is synchronized with dedicated clock marks on patterned discrete track media. Jitter of the bit clock is 2.5 ns (rms), which is good enough for data rates up to about 20 Mbit/s. Using an MR/Inductive head and PRML (Partial Response Maximum Likelihood) signal processing, an error rate of 110-6 is obtained at linear density 3146 bit/mm.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E76-A No.7 pp.1164-1166
Publication Date
1993/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section LETTER (Special Section of Letters Selected from the 1993 IEICE Spring Conference)
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