Title:
TWO-DIMENSIONAL MODULATION ENCODING FOR HIGH DENSITY OPTICAL STORAGE
Document Type and Number:
WIPO Patent Application WO/2004/105252
Kind Code:
A1
Abstract:
The present invention relates to an encoding apparatus and a corresponding method for two-dimensionally encoding user data of a user data stream into channel data of a channel data stream along a two-dimensional channel strip of at least two bit rows onedimensionally evolving along a first direction and being aligned with each other along a second direction, said two directions constituting a two-dimensional lattice of bit positions. According to the invention the apparatus comprises a modulation code encoder for modulation code encoding said user data into said channel data according to a twodimensional modulation code being adapted to prevent predetermined worst case patterns of channel data in said channel data stream. The worst-case patterns are typical for high-density two-dimensional optical storage channels.
Inventors:
IMMINK ALBERT H J (NL)
COENE WILLEM M J M (NL)
COENE WILLEM M J M (NL)
Application Number:
PCT/IB2004/050722
Publication Date:
December 02, 2004
Filing Date:
May 17, 2004
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
IMMINK ALBERT H J (NL)
COENE WILLEM M J M (NL)
IMMINK ALBERT H J (NL)
COENE WILLEM M J M (NL)
International Classes:
G11B20/14; H03M5/14; (IPC1-7): H03M5/14; G11B20/14
Domestic Patent References:
| WO2003034596A1 | 2003-04-24 |
Other References:
IMMINK A H J ET AL: "Signal processing and coding for two-dimensional optical storage", IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM' 03, vol. 7, 1 December 2003 (2003-12-01), pages 3904 - 3908, XP010677345
ASHLEY J J ET AL: "TWO-DIMENSIONAL LOW-PASS FILTERING CODES", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 46, no. 6, 1 June 1998 (1998-06-01), pages 724 - 731, XP000779675, ISSN: 0090-6778
PANSATIANKUL D E ET AL: "FIXED-LENGHT TWO-DIMENSIONAL MODULATION CODING FOR IMAGING PAGE-ORIENTED OPTICAL DATA STORAGE SYSTEMS", APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA,WASHINGTON, US, vol. 42, no. 2, 10 January 2003 (2003-01-10), pages 275 - 290, XP001160172, ISSN: 0003-6935
KURTAS E ET AL: "Performance comparisons of MSN codes for multi-track magnetic recording systems", GLOBAL TELECOMMUNICATIONS CONFERENCE, 1996. GLOBECOM '96. 'COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY LONDON, UK 18-22 NOV. 1996, NEW YORK, NY, USA,IEEE, US, 18 November 1996 (1996-11-18), pages 348 - 352, XP010220378, ISBN: 0-7803-3336-5
SELAVO A L ET AL: "Adaptive code modulation for 2D optical memories", IEEE 2002 INTERNATIONAL SYMPOSIUM ON OPTICAL MEMORY AND OPTICAL DATA, WAIKOLOA, HI, USA, 7 July 2002 (2002-07-07), pages 231 - 233, XP010600183
WEEKS W ET AL: "The capacity and coding gain of certain checkerboard codes", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 44, no. 3, May 1998 (1998-05-01), pages 1193 - 1203, XP002227665, ISSN: 0018-9448
ASHLEY J J ET AL: "TWO-DIMENSIONAL LOW-PASS FILTERING CODES", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 46, no. 6, 1 June 1998 (1998-06-01), pages 724 - 731, XP000779675, ISSN: 0090-6778
PANSATIANKUL D E ET AL: "FIXED-LENGHT TWO-DIMENSIONAL MODULATION CODING FOR IMAGING PAGE-ORIENTED OPTICAL DATA STORAGE SYSTEMS", APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA,WASHINGTON, US, vol. 42, no. 2, 10 January 2003 (2003-01-10), pages 275 - 290, XP001160172, ISSN: 0003-6935
KURTAS E ET AL: "Performance comparisons of MSN codes for multi-track magnetic recording systems", GLOBAL TELECOMMUNICATIONS CONFERENCE, 1996. GLOBECOM '96. 'COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY LONDON, UK 18-22 NOV. 1996, NEW YORK, NY, USA,IEEE, US, 18 November 1996 (1996-11-18), pages 348 - 352, XP010220378, ISBN: 0-7803-3336-5
SELAVO A L ET AL: "Adaptive code modulation for 2D optical memories", IEEE 2002 INTERNATIONAL SYMPOSIUM ON OPTICAL MEMORY AND OPTICAL DATA, WAIKOLOA, HI, USA, 7 July 2002 (2002-07-07), pages 231 - 233, XP010600183
WEEKS W ET AL: "The capacity and coding gain of certain checkerboard codes", IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 44, no. 3, May 1998 (1998-05-01), pages 1193 - 1203, XP002227665, ISSN: 0018-9448
Attorney, Agent or Firm:
Uittenbogaard, Frank (AA Eindhoven, NL)
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