Analysis of HDD thin-film-head read channel performance as a function of media thickness and RLL code d constraint

William G. Bliss; David E. Reed

doi:10.1117/12.228237

8 December 1995 Analysis of HDD thin-film-head read channel performance as a function of media thickness and RLL code d constraint

William G. Bliss, David E. Reed

Author Affiliations +

Proceedings Volume 2605, Coding and Signal Processing for Information Storage; (1995) https://doi.org/10.1117/12.228237
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

The performances of various data detectors, including the maximum likelihood sequence detector (MLSD), are analyzed as a function of media thickness and run-length limited (RLL) code d-constraint. The analysis includes the variation of pulse width and magnetic transition width with media thickness. Performance is calculated in the presence of non-linear partial erasure, or transition amplitude reduction, which changes with media thickness. The RLL code d-constraint effects the media non-linearity and detector processing gain. The results presented predict an optimum media thickness for a given detector and show the relative performance of different detectors and RLL d-constraints.

Citation Download Citation

William G. Bliss and David E. Reed "Analysis of HDD thin-film-head read channel performance as a function of media thickness and RLL code d constraint", Proc. SPIE 2605, Coding and Signal Processing for Information Storage, (8 December 1995); https://doi.org/10.1117/12.228237

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available