Results 41 to 50 of about 91 (64)

Channel modeling for bit-patterned media recording

, 2012
As Industry and the retail users have increasingly demand for higher capacity storage devices for the past few years. Realm of data storage density has expanded from gigabyte- to terabyte-domain.
Xu, Li.
core  

Optimized LDPC Matrices: Reducing and Redistributing 1 bits for Enhanced MAP Detection in Bit-Patterned Media Recording Systems

IEEE Access
Bit-patterned media recording (BPMR) is increasingly recognized as a leading technology for next-generation storage systems due to its potential for achieving extremely high area density. In BPMR, data is stored on discrete magnetic islands arranged in a
Thien An Nguyen, Jaejin Lee, Jong-Ho Lee
doaj   +1 more source

ADVANCED SIGNAL PROCESSING FOR MAGNETIC RECORDING ON PERPENDICULARLY MAGNETIZED MEDIA [PDF]

, 2010
In magnetic recording channels (MRCs) the readback signal is corrupted by many kinds of impairments, such as electronic noise, media noise, intersymbol interference (ISI), inter-track interference (ITI) and different types of erasures.
CHANG, WU
core  

Two-Dimensional 15/24 Non-Isolated Patterned Modulation Codes With Minimum Hamming Distance 3 in Bit-Patterned Media Recording

IEEE Access
Reducing the distance between magnetic islands is essential for increasing the areal density in bit-patterned media recording (BPMR). Consequently, significant two-dimensional (2D) interference emerges, encompassing inter-symbol interference (ISI) and ...
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Soft-information flipping approach in multi-head multi-track BPMR systems

, 2018
Inter-track interference is one of the most severe impairments in bit-patterned media recording system. This impairment can be effectively handled by a modulation code and a multi-head array jointly processing multiple tracks; however, such a modulation ...
C. Warisarn, W. Busyatras, L. M. M. Myint   +2 more
core   +1 more source

Coding and signal processing for high density granular magnetic recording systems

, 2016
The Hard Disk Drive (HDD) industry has, in recent years, struggled with attempting to attain continual growth in storage capacity to meet the needs of a rapidly growing storage demand in the information age. Conventional Perpendicular Magnetic Recording (
Sari Shafidah Shafi'ee
core   +1 more source

Graph Neural Network (GNN) for Joint Detection–Decoder MAP–LDPC in Bit-Patterned Media Recording Systems

With its high area density, bit-patterned media recording (BPMR) is emerging as a leading technology for next-generation storage systems. However, as area density increases, magnetic islands are positioned closer together, causing significant two ...
Thien An Nguyen, Jaejin Lee
core   +1 more source

Effects of SiO₂ content on the nanomechanical properties of CoCrPt-SiO₂ granular films. [PDF]

Sci Rep, 2019
Zhang Y, Shakil A, Wang H, Li X, Tang H, Polycarpou AA.   +5 more
europepmc   +1 more source

Tuning coercive force by adjusting electric potential in solution processed Co/Pt(111) and the mechanism involved. [PDF]

Sci Rep, 2017
Chang CH, Kuo WH, Chang YC, Tsay JS, Yau SL.   +4 more
europepmc   +1 more source

Optimization of Bit-Patterned Media Recording (BPMR) System via Tolerance Design

IEEE Transactions on Magnetics, 2013
Bit-patterned media recording (BPMR) is a promising approach to push back the onset of the superparamagnetic limit faced by conventional granular media recording (CGMR). Previous work in this area has characterized the position jitter and size jitter from fabricated media at recording densities ranging from 0.6 Tera dots per square inch (Tdpsi) to 2.9 ...
Lin, M.Y., Elidrissi, M.R., Chan, K.S., Eason, K., Wang, H., Yang, J.K.W., Asbahi, M., Thiyagarajah, N., Ng, V., Guan, Y.L.   +9 more
exaly   +4 more sources