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Title of Journal: Microsyst Technol

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Abbravation: Microsystem Technologies

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Springer-Verlag

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DOI

10.1007/s00464-008-0298-x

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1432-1858

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Robust embedding of longitudinal position into tap

Authors: Roy D Cideciyan Evangelos S Eleftheriou Glen A Jaquette Paul J Seger
Publish Date: 2011/01/15
Volume: 17, Issue: 5-7, Pages: 831-839
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Abstract

In linear tape open technology the longitudinal position LPOS on magnetic tape is embedded into the timingbased servo format by modulating the positions of magnetic transitions during the servowriting process An efficient method for embedding LPOS information into tape servo signals that is robust to LPOS detection errors is presented The proposed concept is based on the serial concatenation of three dataprocessing stages a lossless compression stage with a fixed compression ratio an errorcorrection coding ECC stage and a runlengthlimited coding stage Various algorithms have been designed to compress and decompress the LPOS information Errorcorrection codes such as Hamming codes Reed–Solomon codes and Golay codes are used to protect LPOS and manufacturing information from detection errors Finally the randomerror and the bursterror performance of various compression/ECC schemes are evaluated by computing the LPOS word error rate for servo signals corrupted by additive white Gaussian noise and by determining the bursterror correction capability of the proposed LPOS formats respectively

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