NDLI: Conservative arrays: multidimensional modulation codes for holographic recording

Content Provider	IEEE Xplore Digital Library
Author	Vardy, A. Blaum, M. Siegel, P.H. Sincerbox, G.T.
Copyright Year	1963
Abstract	In holographic storage, two-dimensional arrays of binary data is optically recorded in a medium via an interference process. To ensure optimum operation of a holographic recording system, it is desirable that the patterns of 1s (light) and 0s (no light) in the recorded array satisfy the following modulation constraint: in each row and column of the array there are at least t transitions of the type 1/spl rarr/0 or 0/spl rarr/1, for a prescribed integer t. A two-dimensional array with this property is said to be a conservative array of strength t. In general, an n-dimensional conservative array of strength t is a binary array having at least t transitions in each column, extending in any of the n dimensions of the array. We present an algorithm for encoding unconstrained binary data into an n-dimensional conservative array of strength t. The algorithm employs differential coding and error-correcting codes. Using n binary codes-one per dimension-with minimum Hamming distance d/spl ges/2t-3, we apply a certain transformation to an arbitrary information array which ensures that the number of transitions in each dimension is determined by the minimum distance of the corresponding code.
Sponsorship	IEEE Information Theory Society
Starting Page	227
Ending Page	230
Page Count	4
File Size	528452
File Format	PDF
ISSN	00189448
Volume Number	42
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multidimensional systems Modulation coding Optical arrays Holography Optical modulation Optical recording Holographic optical components Interference constraints Encoding Error correction codes
Content Type	Text
Resource Type	Article
Subject	Library and Information Sciences Information Systems Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Efficient code constructions for certain two-dimensional constraints

Error-Correction of Multidimensional Bursts

Runlength-limited codes for mixed-error channels

Two-dimensional cluster-correcting codes

Codes for digital recorders

Constraint gain

Analysis of coding schemes for modulation and error control

A Class of Two-Dimensional Cluster-Correcting Codes Based on Schwartz–Etzion's Construction Methods

The (d,k) subcode of a linear block code

Conservative arrays: multidimensional modulation codes for holographic recording

Similar Documents

Efficient code constructions for certain two-dimensional constraints

Error-Correction of Multidimensional Bursts

Runlength-limited codes for mixed-error channels

Two-dimensional cluster-correcting codes

Codes for digital recorders

Constraint gain

Analysis of coding schemes for modulation and error control

A Class of Two-Dimensional Cluster-Correcting Codes Based on Schwartz–Etzion's Construction Methods

The (d,k) subcode of a linear block code

Conservative arrays: multidimensional modulation codes for holographic recording