DocumentCode :
986238
Title :
Compensation of peak-shift with write timing
Author :
Thornley, R.F.M.
Author_Institution :
Storage Technology Corporation, Colorado, USA
Volume :
17
Issue :
6
fYear :
1981
fDate :
11/1/1981 12:00:00 AM
Firstpage :
3332
Lastpage :
3334
Abstract :
Measurements of the peak shift encountered in a digital recording system using the GCR format (9042 fr/in.) are analyzed to show the contributions from the high-frequency losses in the write head (adds 10-15%) and in the read head (adds up to 6%), the read gap length (adds up to 7%) and from the non-linear recording process (up to 18%). Correction of the latter contribution was achieved by altering the timing of the writing signal based on the value of one data bit preceding and one bit following the bit to be recorded. This simple, 3-bit correction was able to reduce the non-linear contribution ascribable to the recording process to less than 7%.
Keywords :
Magnetic tape recording; Background noise; Circuits; Detectors; Error correction; Frequency; Magnetic heads; Pattern recognition; Signal resolution; Testing; Timing;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1981.1061653
Filename :
1061653
Link To Document :
بازگشت