DocumentCode
1060482
Title
An experimental 180 Mb/sec PRML channel for magnetic recording
Author
Hong, John ; Wood, Roger ; Chan, David
Author_Institution
IBM, Storage Syst. Products Div., San Jose, CA, USA
Volume
27
Issue
6
fYear
1991
fDate
11/1/1991 12:00:00 AM
Firstpage
4532
Lastpage
4537
Abstract
An experimental 180 Mbit/s partial-response maximum-likelihood (PRML) channel was developed in order to investigate various technical issues arising in very high speed magnetic disk recording systems. The channel was implemented with discrete analog and logic components. A thin-film 10-turn write head and an experimental high-resolution magnetoresistive read head were used with a high coercivity, thin-film disk. Linear densities of 4000 fc/mm were achieved at 45 m/s and 100 nm flying height. The authors describe the experimental channel in detail and also indicate some of the new experimental results obtained
Keywords
magnetic disc storage; magnetic heads; magnetic thin film devices; magnetoresistance; 180 Mbit/s; PRML channel; coercivity; flying height; logic components; magnetic disk; magnetic recording; magnetoresistive read head; partial-response maximum-likelihood; write head; Coercive force; Detectors; Driver circuits; Equalizers; Magnetic flux; Magnetic heads; Magnetic recording; Thin film circuits; Timing; Viterbi algorithm;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.278676
Filename
278676
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