Rapid advances in recording materials, read/write heads, and mechanical designs over the
last 15 years have led to the need for more complicated signal processing, coding, and …

In order to simplify the threshold determination, reduce the inter-pixel cross-talk, and
improve the storage density for high-density volume holographic data storage, a two …

We propose a low complexity detection technique for multihead multitrack recording
systems. By exploiting sparseness of two-dimensional partial response (PR) channels, we …

Multiple-head array systems, which allow reading and writing of data simultaneously on
multiple tracks, can potentially provide both high density and high speed, but the readback …

New inter-track orthogonal coding for high track density and multi-track recording is
proposed. Two data code sequences are modulated by 2nd order Hadamard matrix …

Shingled Magnetic Recording (SMR) has been recognised as one of the alternative
technologies to achieve an areal density beyond the limit of the perpendicular recording …

Near-optimum sequence detection in channels with intersymbol interference (ISI) is based
on the Viterbi algorithm. However, its complexity increases exponentially with the number of …

抄録 The two-dimension code is the newest robust recoding code. With much interest, is the
2D-PR4 (two-dimensional partial response class IV) code which is attractive in improving not …

A background of activity is presented for signal processing as applied to, and used in,
magnetic information storage systems. Specific examples are given of how current and …

STATE OF THE ART AND FUTURE DIRECTIONS IN CONSTRAINED MULTI TRACK CODE
RESEARCH FOR MAGNETIC RECORDING SYSTEMS Page 1 STATE OF THE ART AND …