Air bearing dynamic stability on bit patterned media disks

2013 ◽  
Vol 19 (9-10) ◽  
pp. 1401-1406 ◽  
Author(s):  
Liping Li ◽  
David B. Bogy
Keyword(s):  
Dynamic Stability ◽  
Air Bearing ◽  
Bit Patterned Media ◽  
Patterned Media

Air Bearing Simulation for Bit Patterned Media

2009 ◽  
Vol 33 (3) ◽  
pp. 199-204 ◽  
Author(s):  
Hui Li ◽  
Hao Zheng ◽  
Yeoungchin Yoon ◽  
Frank E. Talke
Keyword(s):  
Air Bearing ◽  
Bit Patterned Media ◽  
Patterned Media

Air Bearing Simulation for Bit Patterned Media

2008 ◽  
Author(s):  
Hui Li ◽  
Hao Zheng ◽  
Yeoungchin Yoon ◽  
Frank E. Talke
Keyword(s):  
Thermal Stability ◽  
Steady State ◽  
Disk Surface ◽  
Hard Disks ◽  
Air Bearing ◽  
Bit Patterned Media ◽  
Patterned Media ◽  
Storage Density ◽  
Low Head ◽  
Disk Spacing

Patterned media is being considered as a means for achieving a storage density beyond 1Tb/in2 on hard disks by reducing cross talk and overcoming thermal stability problems. In this investigation, the flying characteristics of a femto-type slider over bit patterned media (BPM) is investigated. The discrete bits of the disk are modeled as cylindrical protrusions on the disk surface. The steady-state flying characteristics over BPM at ultra-low head disk spacing is simulated.

Determination of Bit Patterned Media Noise Based on Island Perimeter Fluctuations

2012 ◽  
Vol 48 (11) ◽  
pp. 4574-4577 ◽  
Author(s):  
Laurens Alink ◽  
J. P. J. Groenland ◽  
Jeroen de Vries ◽  
Leon Abelmann
Keyword(s):  
Bit Patterned Media ◽  
Patterned Media ◽  
Media Noise

Role of Dipolar Interactions on the Thermal Stability of High-Density Bit-Patterned Media

2012 ◽  
Vol 3 ◽  
pp. 4500204-4500204 ◽  
Author(s):  
N. Eibagi ◽  
J. J. Kan ◽  
F. E. Spada ◽  
E. E. Fullerton
Keyword(s):  
Thermal Stability ◽  
High Density ◽  
Dipolar Interactions ◽  
Bit Patterned Media ◽  
Patterned Media ◽  
Thermal Stability Of

scholarly journals Utilization of multiple read heads for TMR prediction and correction in bit-patterned media recording

AIP Advances ◽  
2016 ◽  
Vol 7 (5) ◽  
pp. 056501 ◽  
Author(s):  
W. Busyatras ◽  
C. Warisarn ◽  
Y. Okamoto ◽  
Y. Nakamura ◽  
L. M. M. Myint ◽  
...  
Keyword(s):  
Bit Patterned Media ◽  
Patterned Media

scholarly journals Target and Equalizer Design for High-Density Bit-Patterned Media Recording

1970 ◽  
Vol 6 (2) ◽  
pp. 128-135
Author(s):  
Santi Koonkarnkhai ◽  
Phongsak Keeratiwintakorn ◽  
Piya Kovintavewat
Keyword(s):  
Partial Response ◽  
Mean Squared Error ◽  
Bit Patterned Media ◽  
Patterned Media ◽  
Media Noise ◽  
Minimum Mean Squared Error ◽  
Squared Error ◽  
Cross Track ◽  
Partial Response Maximum Likelihood ◽  
Better Than

In bit-patterned media recording (BPMR) channels, the inter-track interference (ITI) is extremely severe at ultra high areal densities, which significantly degrades the system performance. The partial-response maximum-likelihood (PRML) technique that uses an one-dimensional (1D) partial response target might not be able to cope with this severe ITI, especially in the presence of media noise and track mis-registration (TMR). This paper describes the target and equalizer design for highdensity BPMR channels. Specifically, we proposes a two-dimensional (2D) cross-track asymmetric target, based on a minimum mean-squared error (MMSE) approach, to combat media noise and TMR. Results indicate that the proposed 2D target performs better than the previously proposed 2D targets, especially when media noise and TMR is severe.

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