KR19990063012A - 광디스크의 신호처리방법 및 광디스크장치 - Google Patents
광디스크의 신호처리방법 및 광디스크장치 Download PDFInfo
- Publication number
- KR19990063012A KR19990063012A KR1019980054553A KR19980054553A KR19990063012A KR 19990063012 A KR19990063012 A KR 19990063012A KR 1019980054553 A KR1019980054553 A KR 1019980054553A KR 19980054553 A KR19980054553 A KR 19980054553A KR 19990063012 A KR19990063012 A KR 19990063012A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- polarity
- recording
- sum
- optical disc
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
Abstract
Description
Claims (6)
- 광검출수단에서 검출된 복수의 전기신호의 합신호 또는 차신호를 사용하는 광디스크의 신호처리방법에 있어서,상기 합신호 또는 차신호에 포함되는 ID신호와 기록신호를 선택하여 시간을 다중으로 하고, 상기 ID신호의 극성을 상기 기록신호의 극성에 일치시키고, 극성을 일치시킨 상기 ID신호와 기록신호의 DC레벨을 일정하게 제어하고, ID신호와 기록신호를 극성 및 DC레벨이 일치한 일련의 신호로 처리한 후에 A/D변환하는 것을 특징으로 하는 광디스크의 신호처리방법.
- 제1항에 있어서, 상기 차신호에 포함되는 ID신호와, 합신호에 포함되는 기록신호를 선택하여 시간을 다중으로 하는 것을 특징으로 하는 광디스크의 신호처리방법.
- 제1항에 있어서, 상기 차신호와 합신호에 포함되는 ID신호와, 합신호에 포함되는 기록신호를 선택하여 시간을 다중으로 하는 것을 특징으로 하는 광디스크의 신호처리방법.
- 디스크로부터의 반사광을 분할검출하고, 복수의 전기신호를 출력하는 광검출수단과, 상기 복수의 전기신호로부터 합신호와 차신호를 생성하는 연산수단과, 상기 합신호 또는 차신호로부터 ID신호와 기록신호를 선택하여 시간을 다중으로 하는 신호다중수단과, 상기 ID신호의 극성을 상기 기록신호의 극성에 일치시키는 극성변환수단과, 극성을 일치시킨 상기 ID신호와 기록신호의 DC레벨을 일정하게 제어하는 오프셋제어수단과, 극성 및 DC레벨이 일치한 일련의 ID신호와 기록신호를 디지털화하는 A/D변환기를 구비한 것을 특징으로 하는 광디스크장치.
- 제4항에 있어서, 상기 신호다중수단은, 상기 차신호로부터 ID신호를, 합신호로부터 기록신호를 선택하여 시간을 다중으로 하는 것을 특징으로 하는 광디스크장치.
- 제4항에 있어서, 상기 신호다중수단은, 상기 차신호와 합신호로부터 ID신호를, 합신호로부터 기록신호를 선택하여 시간을 다중으로 하는 것을 특징으로 하는 광디스크장치.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP97-343495 | 1997-12-15 | ||
JP34349597 | 1997-12-15 | ||
JP17945998 | 1998-06-26 | ||
JP98-179459 | 1998-06-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990063012A true KR19990063012A (ko) | 1999-07-26 |
KR100526842B1 KR100526842B1 (ko) | 2006-01-12 |
Family
ID=26499306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980054553A KR100526842B1 (ko) | 1997-12-15 | 1998-12-11 | 광디스크의신호처리방법및광디스크장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6195320B1 (ko) |
KR (1) | KR100526842B1 (ko) |
CN (1) | CN1116670C (ko) |
TW (1) | TW408307B (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6912190B2 (en) * | 2000-11-15 | 2005-06-28 | Matsushita Electric Industrial Co., Ltd. | Optical disc apparatus and method for reading information from an optical disk having tracks and spaces between the tracks on which address information is recorded |
JP3736412B2 (ja) * | 2001-09-28 | 2006-01-18 | ティアック株式会社 | 光ディスク装置 |
JP2003338132A (ja) * | 2002-05-20 | 2003-11-28 | Teac Corp | 信号処理回路 |
JP4125753B2 (ja) * | 2003-03-26 | 2008-07-30 | 松下電器産業株式会社 | 光ディスク装置 |
US8023370B2 (en) * | 2005-10-25 | 2011-09-20 | Mediatek Inc. | Apparatus and method for converting groove/land polarity upon groove/land track change on optical medium |
US7903508B2 (en) | 2006-01-26 | 2011-03-08 | Mediatek Inc. | System and method for determining groove/land switching points of an optical disc utilizing a motor rotating signal and original switching points |
US7961577B2 (en) * | 2006-03-10 | 2011-06-14 | Mediatek Inc. | System and method for generating an output signal indicating a specific area on an optical disc utilizing an adjustable specific time |
CN101689387A (zh) | 2007-06-27 | 2010-03-31 | 松下电器产业株式会社 | 信号处理装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5058093A (en) * | 1986-01-27 | 1991-10-15 | Matsushita Electric Industrial Co., Ltd. | Signal level deviation detecting apparatus |
US5365505A (en) * | 1989-09-14 | 1994-11-15 | Sharp Kabushiki Kaisha | Information reproducing device |
JP2810592B2 (ja) * | 1992-07-06 | 1998-10-15 | シャープ株式会社 | ディジタル情報再生装置 |
JPH0793893A (ja) * | 1993-09-24 | 1995-04-07 | Toshiba Corp | 画像情報処理装置 |
JP3962439B2 (ja) * | 1996-06-21 | 2007-08-22 | パイオニア株式会社 | 情報記録装置及び情報記録方法並びに情報再生装置及び情報再生方法 |
-
1998
- 1998-12-04 TW TW087120172A patent/TW408307B/zh not_active IP Right Cessation
- 1998-12-11 KR KR1019980054553A patent/KR100526842B1/ko not_active IP Right Cessation
- 1998-12-15 CN CN98126093A patent/CN1116670C/zh not_active Expired - Lifetime
- 1998-12-15 US US09/210,808 patent/US6195320B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1221178A (zh) | 1999-06-30 |
US6195320B1 (en) | 2001-02-27 |
KR100526842B1 (ko) | 2006-01-12 |
TW408307B (en) | 2000-10-11 |
CN1116670C (zh) | 2003-07-30 |
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