Results 11 to 20 of about 91 (64)

Estimating Interference with a Two-Dimensional Viterbi Algorithm for Bit-Patterned Media Recording

open access: yesApplied Sciences, 2022
Bit-patterned media recording (BPMR) is proposed as a candidate for future magnetic data storage to overcome superparamagnetism. The distance between magnetic islands in BPMR must be reduced to increase the areal density (AD).
Thien An Nguyen, Jaejin Lee
doaj   +2 more sources

Iterative Signal Detection Scheme Using Multilayer Perceptron for a Bit-Patterned Media Recording System

open access: yesApplied Sciences, 2020
Because of the physical and engineering problems of conventional magnetic data storage systems, bit-patterned media recording (BPMR) is expected to be a promising technology for extending the storage density to beyond 1 Tb /in2.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

LDPC product coding scheme with extrinsic information for bit patterned media recoding

open access: yesAIP Advances, 2017
Since the density limit of the current perpendicular magnetic storage system will soon be reached, bit patterned media recording (BPMR) is a promising candidate for the next generation storage system to achieve an areal density beyond 1 Tb/in2.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

Soft-Output Detector Using Multi-Layer Perceptron for Bit-Patterned Media Recording

open access: yesApplied Sciences, 2022
As conventional data storage systems are faced with critical problems such as the superparamagnetic limit, bit-patterned media recording (BPMR) has received significant attention as a promising next-generation magnetic data storage system.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

Recording media configurations for double-layered bit-patterned magnetic recording

open access: yesAIP Advances
The current magnetic recording technology is approaching its recording density limit. Recently, concepts focused on vertically stacking multiple recording media have gained momentum, driven by the potential to significantly expand recording density.
Chaiwat Buajong, Chanon Warisarn
doaj   +2 more sources

Iterative decoding of SOVA and LDPC product code for bit-patterned media recoding

open access: yesAIP Advances, 2018
The demand for high-density storage systems has increased due to the exponential growth of data. Bit-patterned media recording (BPMR) is one of the promising technologies to achieve the density of 1Tbit/in2 and higher.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

Bit-island arrangement and signal processing in double-layer magnetic recording technology

open access: yesAIP Advances
The escalating demand for high-density storage of hard disk drives has prompted the innovation of advanced technologies to significantly boost an areal density (AD). Among these, three-dimensional magnetic recording systems incorporating double recording
V. Sawangarom   +3 more
doaj   +2 more sources

Single-Track equalization method with TMR correction system based on cross correlation functions for a patterned media recording system

open access: yesEngineering and Applied Science Research, 2017
Bit-patterned media recording (BPMR) is a promising technology for ultra-high density media, however, there are some challenges that need to be addressed including two-dimensional (2D) interference, and track mis-registration (TMR).
Lin Min Min Myint   +3 more
doaj   +2 more sources

Inter-track interference mitigation with two-dimensional variable equalizer for bit patterned media recording

open access: yesAIP Advances, 2017
The increased track density in bit patterned media recording (BPMR) causes increased inter-track interference (ITI), which degrades the bit error rate (BER) performance.
Yao Wang, B. V. K. Vijaya Kumar
doaj   +2 more sources

A simple 2D modulation code in single-reader two-track reading BPMR systems

open access: yesDigital Communications and Networks, 2021
A reduction in the track width of magnetic recording systems results in a welcome increase in Areal Density (AD), but can severely deteriorate system performance in the unfortunate appearance of extreme Inter-Track Interference (ITI).
Wiparat Busyatras   +3 more
doaj   +1 more source

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