The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform

Koichi Seno - One of the best experts on this subject based on the ideXlab platform.

Hisao Tateishi - One of the best experts on this subject based on the ideXlab platform.

Bane Vasic - One of the best experts on this subject based on the ideXlab platform.

  • signal processing and coding techniques for 2 d magnetic recording an overview
    Proceedings of the IEEE, 2018
    Co-Authors: Shayan Srinivasa Garani, Lara Dolecek, J R Barry, Frederic Sala, Bane Vasic
    Abstract:

    Two-dimensional magnetic recording (TDMR) is an emerging storage technology that aims to achieve areal densities on the order of 10 Tb/in2, mainly driven by innovative channels engineering with minimal changes to existing head/media designs within a systems framework. Significant additive areal density gains can be achieved by using TDMR over bit patterned media (BPM) and energy-assisted magnetic recording (EAMR). In TDMR, the sectors are inherently 2-D with reduced track pitch and bit widths, leading to severe 2-D intersymbol interference (ISI). This necessitates the development of powerful 2-D signal processing and coding algorithms for mitigating 2-D ISI, timing artifacts, jitter, and electronics noise resulting from irregular media grain positions and read-head electronics. The algorithms have to be eventually realized within a read/write channel architecture as a part of a system-on-chip (SoC) within the Disk Controller system. In this work, we provide a wide overview of TDMR technology, channel models and capacity, signal processing algorithms (detection and timing recovery), and error-correcting codes attuned to 2-D channels. The innovations and advances described not only make TDMR a promising future technology, but may serve a broader engineering audience as well.

Yang Jinxin - One of the best experts on this subject based on the ideXlab platform.

Rita M Obrien - One of the best experts on this subject based on the ideXlab platform.

  • sytem and method for merging Disk change data from a floppy Disk Controller with data relating to an ide drive Controller
    1994
    Co-Authors: Rita M Obrien
    Abstract:

    A system is disclosed for merging data from two separate registers at different locations in a computer system. A floppy drive Controller is provided as part of a companion chip located separately from an IDE drive Controller. Both Controllers include a data register with the same address to make the system compatible with prior BIOS programs. The register in the floppy Controller includes a DSK CHG bit as bit D7 of a direct input register (DIR), which is obtained from the DSK CHG# signal from the floppy drive. In the present invention, the DSK CHG# signal from the floppy drive is connected directly to the bus interface unit (BIU) of the integrated processor. The processor merges this signal with data bits D0-D6 of the IDE Controller by determining the location of the IDE Controller from the Address Control Register (ACR), which is determined during system initialization. The floppy drive Controller also is programmed during system initialization not to respond to an access to address value 3F7h by programming a configuration register in the Controller. The BIU determines whether it should merge the data or whether the IDE Controller will merge the data by checking the status of a MERGE bit in the ISACFG register, which also is configured during system initialization.