Data modulating method and apparatus, data demodulating...

Details Data modulating method and apparatus, data demodulating... Data modulating method and apparatus, data demodulating...

2007-01-16

2007-01-16

Nguyen, Linh V. (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from 'n' out of 'm' codes

C341S058000, C341S059000

Reexamination Certificate

active

11298827

ABSTRACT:
In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo random data streams using multiplexed information of predetermined bits by applying a predetermined multiplexing method to each of the pseudo random data streams. An encoder RLL-modulates the plurality of types of pseudo random data streams to create a modulated code stream including a minimum of DC components. The multiplexer generates the random data streams by inconsecutively scrambling the input data stream using the multiplexed information. The encoder weak DC-free RLL-modulates each of the multiplexed data streams without using a DC control sub code conversion table to which additional bits are added and provides a code stream including a minimum of DC components among multiplexed, RLL-modulated code streams.

REFERENCES:
patent: 4567591 (1986-01-01), Gray et al.
patent: 4949196 (1990-08-01), Davie et al.
patent: 5327124 (1994-07-01), Funamoto
patent: 5349350 (1994-09-01), Blagaila
patent: 5486828 (1996-01-01), Mikami
patent: 5506903 (1996-04-01), Yamashita
patent: 5638065 (1997-06-01), Hassner et al.
patent: 5742243 (1998-04-01), Moriyama
patent: 5768376 (1998-06-01), Chang
patent: 5774078 (1998-06-01), Tanaka et al.
patent: 5778022 (1998-07-01), Walley
patent: 5812594 (1998-09-01), Rakib
patent: 5892792 (1999-04-01), Walley
patent: 6002718 (1999-12-01), Roth
patent: 6011497 (2000-01-01), Tsang et al.
patent: 6177890 (2001-01-01), Keirn et al.
patent: 6225921 (2001-05-01), Kahlman et al.
patent: 6268810 (2001-07-01), Shim et al.
patent: 6281815 (2001-08-01), Shim et al.
patent: 6301287 (2001-10-01), Walley et al.
patent: 6324138 (2001-11-01), Hori et al.
patent: 6384747 (2002-05-01), Reed et al.
patent: 6441756 (2002-08-01), Shim
patent: 6445313 (2002-09-01), Ahn
patent: 6604219 (2003-08-01), Lee et al.
patent: 6654425 (2003-11-01), Kunisa et al.
patent: 6690308 (2004-02-01), Hayami
patent: 6781527 (2004-08-01), Shim et al.
patent: 6897793 (2005-05-01), Kim et al.
patent: 7006016 (2006-02-01), Feng
patent: 7006019 (2006-02-01), Lee et al.
patent: 2002/0060634 (2002-05-01), Shim
patent: 2002/0080887 (2002-06-01), Jeong et al.
patent: 2002/0129307 (2002-09-01), Walker et al.
patent: 2004/0205423 (2004-10-01), Shim et al.
patent: 2006/0083328 (2006-04-01), Green et al.
patent: 0 343 930 (1989-11-01), None
patent: 1 047 197 (2000-10-01), None
patent: 1 187 335 (2002-03-01), None
patent: 1 251 641 (2002-10-01), None
patent: 2000-286710 (2000-10-01), None
patent: 2000-339871 (2000-12-01), None
patent: 2002-135121 (2002-05-01), None
patent: 2003-032120 (2003-01-01), None
patent: 1999-7003183 (1999-04-01), None
patent: 10-294893 (2001-04-01), None
patent: 2002-19674 (2002-03-01), None
patent: WO98/17005 (1998-04-01), None
Kees A. Schouhamer Immink; Codes for Mass Data Storage Systems; Chapter 13, no month, 1999; pp. 261-278.
Search Report issued in European Patent Application No. 03256024.5.
Coene et al., “EFMCC: A New Combi-Code For High Density Optical Recording”,Proceedings Of The SPIE, SPIE, Bellingham, VA, US, vol. 4090, no month.
Kunisa, “Runlength Control Based On Guided Scrambling For Digital Magnetic Recording”,IEICE Transactions On Electronics, Institute Of Electronics Information And Comm. Eng. Tokyo, JP, vol. E82-C, No. 12, no month.
U.S. Appl. No. 10/667,670, filed Sep. 23, 2003, Jae-seong Shim et al.
U.S. Appl. No. 10/838,204, filed May 5, 2004, Jae-seong Shim et al.
U.S. Appl. No. 11/206,796, filed Aug. 19, 2005, Jae-seong Shim et al.
Japanese Office Action issued in Japanese Patent Application No. 2003-336173 on Jan. 10, 2006.

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