Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Variable-length two-dimensional modulation coding for imaging page-oriented optical data storage systems.

Dhawat E Pansatiankul1, Alexander A Sawchuk

  • 1Signal and Image Processing Institute, University of Southern California, Los Angeles, California 90089-2564, USA.

Applied Optics
|September 25, 2003
PubMed
Summary

Researchers introduce variable-length 2-D modulation codes for page-oriented optical data storage (PODS). These novel codes enhance data storage by overcoming spatial interference and improving code rates in imaging systems.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

All-optical tunable multilevel amplitude regeneration based on coherent wave mixing using a polarizer.

Optics express·2015
Same author

Human daily activity recognition with sparse representation using wearable sensors.

IEEE journal of biomedical and health informatics·2014
Same author

Beyond the standard clinical rating scales: fine-grained assessment of post-stroke motor functionality using wearable inertial sensors.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2013
Same author

Robust human activity and sensor location corecognition via sparse signal representation.

IEEE transactions on bio-medical engineering·2012
Same author

Fixed-length two-dimensional modulation coding for imaging page-oriented optical data storage systems.

Applied optics·2003

Area of Science:

  • Data Storage Technologies
  • Information Theory
  • Optical Engineering

Background:

  • Page-oriented optical data storage (PODS) systems utilize a 2-D bit image format for data recording and retrieval.
  • Existing fixed-length 2-D modulation codes face challenges with spatial intersymbol interference and suboptimal code rates.
  • There is a need for advanced modulation codes to enhance the performance and reliability of imaging-based PODS.

Purpose of the Study:

  • To introduce a new class of variable-length 2-D modulation codes for PODS systems.
  • To address spatial intersymbol interference and improve code rate performance compared to fixed-length codes.
  • To demonstrate the design and properties of these novel codes for imaging PODS applications.

Main Methods:

  • Development of a new class of variable-length 2-D modulation codes.

Related Experiment Videos

  • Mapping one-dimensional input data blocks of variable lengths to 2-D output blocks.
  • Design principles focused on limiting error propagation within the coded data.
  • Implementation and analysis of several fixed-length and variable-length 2-D modulation code examples.

    • Main Results:

    • Successful introduction of variable-length 2-D modulation codes for imaging PODS.
    • Demonstrated ability of these codes to overcome spatial intersymbol interference.
    • Improved code rate performance compared to traditional fixed-length 2-D modulation codes.
    • Analysis of various code properties and their impact on system performance.

    Conclusions:

    • Variable-length 2-D modulation codes represent a significant advancement for PODS systems.
    • These codes offer enhanced data integrity and efficiency in 2-D bit image storage.
    • Further research and implementation of these codes can optimize optical data storage solutions.