DocumentCode
1049451
Title
A coding method in digital magnetic recording
Author
Tamura, Takashi ; Tsutsumi, Masayoshi ; Aoi, Hajime ; Matsuishi, Hiromi ; Nakagoshi, Kazuo ; Kawano, Sadao ; Makita, Mutso
Author_Institution
Hitachi Ltd., Kokubunji, Tokyo, Japan
Volume
8
Issue
3
fYear
1972
fDate
9/1/1972 12:00:00 AM
Firstpage
612
Lastpage
614
Abstract
An experimental comparison of the recording density limits of three coding methods was performed to find the coding method most suitable for high density recording. We examined FM, MFM, and one of the so-called run-length-limited codes to which self-clocking and peak detection are applicable. In this paper, we call the last coding method "modified nonreturn to zero inverted" (MNRZI). The recording density limit was obtained for each method from measurement of the peak shift and signal to noise ratio for a given recording channel.
Keywords
Coding techniques; Digital magnetic recording; Circuit noise; Cutoff frequency; Digital magnetic recording; Disk recording; Jitter; Magnetic noise; Magnetic recording; Pulse circuits; Signal to noise ratio; Silicon compounds;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1972.1067343
Filename
1067343
Link To Document