JP3970237B2 - 光ディスク及び光ディスク装置 - Google Patents
光ディスク及び光ディスク装置 Download PDFInfo
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- JP3970237B2 JP3970237B2 JP2003387134A JP2003387134A JP3970237B2 JP 3970237 B2 JP3970237 B2 JP 3970237B2 JP 2003387134 A JP2003387134 A JP 2003387134A JP 2003387134 A JP2003387134 A JP 2003387134A JP 3970237 B2 JP3970237 B2 JP 3970237B2
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-
- 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
- G11B7/0045—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
- G11B2020/1457—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof wherein DC control is performed by calculating a digital sum value [DSV]
-
- 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
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
-
- 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
- G11B2220/2579—HD-DVDs [high definition DVDs]; AODs [advanced optical discs]
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Head (AREA)
Description
「100000 010000 000000 001000」(#=0の場合)
「100010 010000 000000 001000」(#=1の場合)
の同期情報パターンを生成し、SY1においては、
「101000 010000 000000 001000」(#=0の場合)
「101001 010000 000000 001000」(#=1の場合)
を生成して選択スイッチ36fに供給する。生成された同期情報パターンは、DSV演算部36bにも供給され、それぞれの場合のDSV値が算出される。
Claims (5)
- 同期フレーム毎に1回だけ同期情報を挿入しつつ光ディスクにデータを記録する光ディスク装置であって、
前記同期情報の極性を制御する同期制御手段
を備え、前記同期制御手段は、
最初の同期情報を、DSV値が最小となるようにマークあるいはスペースのいずれかの極性で挿入し、
次の同期情報を、前記最初の同期情報がマークの場合にはスペースで挿入し、前記最初の同期情報がスペースの場合にはマークで挿入し、
以後の同期情報は、前記の処理を繰り返して挿入するものであり前記挿入したマーク間の間隔及びスペース間の間隔のいずれにおいても周期性を有しない
ことを特徴とする光ディスク装置。 - 請求項1記載の装置において、さらに、
前記同期情報をマークで形成するタイミングにおいて、前記光ディスクからの戻り光量に基づき、記録レーザ光パワーを調整する手段
を有することを特徴とする光ディスク装置。 - 請求項1または2記載の装置において、
前記同期情報は、それ以外のデータ部には出現しない時間的に長いマークあるいはスペースを1つ有することを特徴とする光ディスク装置。 - 同期フレーム毎に1回だけ同期情報が挿入された光ディスクであって、
連続する2個の同期情報を単位とし、
前記2個の同期情報の最初の同期情報はDSV値が最小となるようにマークあるいはスペースのいずれかの極性で形成され、
前記2個の同期情報の次の同期情報は、前記最初の同期情報の極性に応じ、前記最初の同期情報の極性がマークである場合にはスペースで形成され、前記最初の同期情報の極性がスペースである場合にはマークで形成されるものであり前記形成されたマーク間の間隔及びスペース間の間隔のいずれにおいても周期性を有しない
ことを特徴とする光ディスク。 - 請求項4記載の光ディスクにおいて、
前記同期情報は、それ以外のデータ部には出現しない時間的に長いマークあるいはスペースを1つ有することを特徴とする光ディスク。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003387134A JP3970237B2 (ja) | 2003-11-17 | 2003-11-17 | 光ディスク及び光ディスク装置 |
EP04257051A EP1531479A3 (en) | 2003-11-17 | 2004-11-12 | Optical disk and optical disk drive |
TW093135031A TWI253640B (en) | 2003-11-17 | 2004-11-16 | Optical disk and optical disk drive |
KR1020040093416A KR100691640B1 (ko) | 2003-11-17 | 2004-11-16 | 광 디스크 장치 |
CNB2004100947544A CN1280793C (zh) | 2003-11-17 | 2004-11-17 | 信息记录方法及光盘装置 |
US10/991,918 US7355942B2 (en) | 2003-11-17 | 2004-11-17 | Optical disk and optical disk drive for suppressing a digital sum value and low-frequency components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003387134A JP3970237B2 (ja) | 2003-11-17 | 2003-11-17 | 光ディスク及び光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005149640A JP2005149640A (ja) | 2005-06-09 |
JP3970237B2 true JP3970237B2 (ja) | 2007-09-05 |
Family
ID=34431531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003387134A Expired - Fee Related JP3970237B2 (ja) | 2003-11-17 | 2003-11-17 | 光ディスク及び光ディスク装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7355942B2 (ja) |
EP (1) | EP1531479A3 (ja) |
JP (1) | JP3970237B2 (ja) |
KR (1) | KR100691640B1 (ja) |
CN (1) | CN1280793C (ja) |
TW (1) | TWI253640B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4069216B2 (ja) * | 2003-11-10 | 2008-04-02 | ティアック株式会社 | 光ディスク及び光ディスク装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0991885A (ja) | 1995-09-28 | 1997-04-04 | Mitsubishi Electric Corp | 同期情報付加方法及び同期情報付加装置、並びに同期情報検出方法及び同期情報検出装置 |
JPH09246979A (ja) | 1996-03-04 | 1997-09-19 | Hitachi Ltd | ディジタルデータの変調方法,変調装置,復調方法および復調手段 |
KR100226871B1 (ko) * | 1997-02-28 | 1999-10-15 | 구자홍 | 광 디스크 기록장치 |
KR100235788B1 (ko) * | 1997-03-31 | 1999-12-15 | 전주범 | 광디스크 시스템에서 동기 신호를 이용한 dsv 제어장치 |
KR100354737B1 (ko) * | 1997-12-30 | 2003-03-26 | 삼성전자 주식회사 | 고밀도 광기록기기를 위한 적응적인 기록방법 및 그 회로 |
TW457476B (en) * | 1998-11-06 | 2001-10-01 | Matsushita Electric Ind Co Ltd | Method and apparatus for obtaining a recording pulse condition |
KR100294893B1 (ko) * | 1999-03-09 | 2001-07-12 | 윤종용 | 개선된 dc 억압 능력을 갖는 rll 코드 생성 방법 과 생성된 rll 코드 변복조 방법 |
US6687206B1 (en) * | 1999-06-02 | 2004-02-03 | Ricoh Company, Ltd. | Information recording method and apparatus |
JP2001266348A (ja) * | 2000-03-24 | 2001-09-28 | Matsushita Electric Ind Co Ltd | データ変調方法、データ変調装置、および光ディスク装置 |
JP3994708B2 (ja) | 2001-09-17 | 2007-10-24 | ティアック株式会社 | 光ディスク装置 |
JP4069216B2 (ja) * | 2003-11-10 | 2008-04-02 | ティアック株式会社 | 光ディスク及び光ディスク装置 |
JP4515123B2 (ja) | 2004-03-18 | 2010-07-28 | 旭化成イーマテリアルズ株式会社 | 感光性樹脂積層体及びその用途 |
-
2003
- 2003-11-17 JP JP2003387134A patent/JP3970237B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-12 EP EP04257051A patent/EP1531479A3/en not_active Withdrawn
- 2004-11-16 KR KR1020040093416A patent/KR100691640B1/ko not_active IP Right Cessation
- 2004-11-16 TW TW093135031A patent/TWI253640B/zh not_active IP Right Cessation
- 2004-11-17 CN CNB2004100947544A patent/CN1280793C/zh not_active Expired - Fee Related
- 2004-11-17 US US10/991,918 patent/US7355942B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100691640B1 (ko) | 2007-03-09 |
EP1531479A2 (en) | 2005-05-18 |
TWI253640B (en) | 2006-04-21 |
CN1619658A (zh) | 2005-05-25 |
US20050105423A1 (en) | 2005-05-19 |
US7355942B2 (en) | 2008-04-08 |
JP2005149640A (ja) | 2005-06-09 |
EP1531479A3 (en) | 2010-05-12 |
TW200518072A (en) | 2005-06-01 |
KR20050047480A (ko) | 2005-05-20 |
CN1280793C (zh) | 2006-10-18 |
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