Adaptive writing method for high-density optical recording...

Details Adaptive writing method for high-density optical recording... Adaptive writing method for high-density optical recording...

2011-03-29

2011-03-29

Edun, Muhammad N (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S059110, C369S116000, C369S047500

Reexamination Certificate

active

07916604

ABSTRACT:
An adaptive writing method of a high-density optical recording apparatus and a circuit thereof. The circuit includes a discriminator for discriminating a magnitude of a present mark of input NRZI data and magnitudes of leading and/or trailing spaces of the input NRZI data, a generator for controlling the waveform of a write pulse in accordance with the magnitude of the present mark of the input NRZI data and the magnitudes of the leading and/or trailing spaces of the input NRZI data to generate an adaptive write pulse, and a driver for driving a light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for respective channels of the adaptive write pulse. The widths of the first and/or last pulses of the write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.

REFERENCES:
patent: 4423502 (1983-12-01), Dil
patent: 5327411 (1994-07-01), Iwasa et al.
patent: 5418770 (1995-05-01), Ide et al.
patent: 5490126 (1996-02-01), Furumiya et al.
patent: 5499227 (1996-03-01), Higasa
patent: 5568461 (1996-10-01), Nishiuchi et al.
patent: 5569517 (1996-10-01), Tominaga et al.
patent: 5633844 (1997-05-01), Maeda et al.
patent: 5636194 (1997-06-01), Furumiya et al.
patent: 5642343 (1997-06-01), Toda et al.
patent: 5646928 (1997-07-01), Wu et al.
patent: 5696752 (1997-12-01), Hajjar et al.
patent: 5703855 (1997-12-01), Kirino et al.
patent: 5734637 (1998-03-01), Ootaki et al.
patent: 5745467 (1998-04-01), Sakaue et al.
patent: 5757735 (1998-05-01), Fitzpatrick et al.
patent: 5850378 (1998-12-01), Ninamino et al.
patent: 6018508 (2000-01-01), Hasegawa
patent: 6044055 (2000-03-01), Hara
patent: 6115339 (2000-09-01), Winarski
patent: 6151281 (2000-11-01), Van Der Enden et al.
patent: 6345026 (2002-02-01), Furukawa et al.
patent: 6631110 (2003-10-01), Seo et al.
patent: 7209423 (2007-04-01), Seo et al.
patent: 7391698 (2008-06-01), Seo et al.
patent: 0388897 (1990-09-01), None
patent: 0851413 (1997-12-01), None
patent: 0851413 (1998-07-01), None
patent: 3-22223 (1991-01-01), None
patent: 5-135363 (1993-06-01), None
patent: 6-12674 (1994-01-01), None
patent: 6-295440 (1994-10-01), None
patent: 6-325364 (1994-11-01), None
patent: 7-37250 (1995-02-01), None
patent: 7-121878 (1995-05-01), None
patent: 7-129959 (1995-05-01), None
patent: 7-225947 (1995-08-01), None
patent: 8-7282 (1996-01-01), None
patent: 8-180413 (1996-07-01), None
patent: 8-287465 (1996-11-01), None
patent: 9-81937 (1997-03-01), None
patent: 10-241164 (1998-09-01), None
patent: 93-524 (1998-01-01), None
patent: WO 98/15950 (1998-04-01), None
patent: WO 98/28735 (1998-07-01), None
Office Action issued in Chinese Patent Application No. 99111676.3 on Jun. 20, 2003.
Office Action issued in Japanese Patent Application No. 2002-2741 on Apr. 20, 2004.
Office Action issued in Japanese Patent Application No. 2002-2742 on Apr. 20, 2004.
Office Action issued in Japanese Patent Application No. 2002-2749 on Apr. 20, 2004.
Office Action issued in Japanese Patent Application No. 2000-319957.
U.S. Appl. No. 09/359,128, filed Jul. 23, 1999, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 09/609,822, filed Jul. 3, 2000, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 10/774,404, filed Feb. 10, 2004, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 11/432,472, filed May 12, 2006, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 11/432,473, filed May 12, 2006, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 11/685,538, filed May 13, 2007, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
U.S. Appl. No. 12/122,912, filed May 19, 2008, Jin-gyo Seo et al., Samsung Electronics Co., Ltd.
International Search Report dated Nov. 13, 2008 of the European Patent Application No. 02079350.1.

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