KR100522314B1 - 정보기록장치 - Google Patents
정보기록장치 Download PDFInfo
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- KR100522314B1 KR100522314B1 KR1020020072646A KR20020072646A KR100522314B1 KR 100522314 B1 KR100522314 B1 KR 100522314B1 KR 1020020072646 A KR1020020072646 A KR 1020020072646A KR 20020072646 A KR20020072646 A KR 20020072646A KR 100522314 B1 KR100522314 B1 KR 100522314B1
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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
- G11B7/00452—Recording involving bubble or bump forming
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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
- G11B7/00456—Recording strategies, e.g. pulse sequences
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/1053—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
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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
- 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
- G11B7/00454—Recording involving phase-change effects
-
- 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
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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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
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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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
- G11B7/1275—Two or more lasers having different wavelengths
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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
- G11B7/0055—Erasing
- G11B7/00557—Erasing involving phase-change media
-
- 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
- G11B7/006—Overwriting
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (15)
- 기록매체에 에너지를 조사하는 것에 의해서 매체에 국소적인 물리적변화를 일으켜 데이타를 기록하는 정보기록장치에 있어서,상기 에너지를 조사하는 기록파형에 있어서의 스페이스의 직전 마크의 마크길이가 최단마크길이인지 아닌지를 판정하는 비교기 및상기 스페이스의 선두에 마련되는 제1 레벨의 제1 기간의 길이를 상기 비교기의 출력에 의해 전환하는 파형부호기를 포함하고,상기 스페이스 기록중에, 상기 제1 기간은 상기 제1 레벨보다 큰 제2 레벨의 제2 기간에 계속되는 것을 특징으로 하는 정보기록장치.
- 기록매체에 에너지를 조사하는 것에 의해서 매체에 국소적인 물리적변화를 일으켜 데이타를 기록하는 정보기록방법에 있어서,상기 에너지를 조사하는 기록파형에 있어서의 스페이스의 직전 마크의 마크길이가 최단마크길이인지 아닌지를 판정하는 스텝 및최단마크길이이면 상기 스페이스의 선두에 마련되는 제1 레벨의 제1 기간의 길이를 Tb1으로 설정하고, 최단마크길이가 아니면 상기 제1 기간을 Tb1보다 길게 설정하는 스텝을 포함하고,상기 스페이스 기록중에, 상기 제1 기간은 상기 제1 레벨보다 큰 제2 레벨의 제2 기간에 계속되는 것을 특징으로 하는 정보기록방법.
- 삭제
- 삭제
- 기록매체에 에너지를 조사하는 것에 의해서 매체에 국소적인 물리적변화를 일으켜 데이타를 기록하는 정보기록장치에 있어서,기록부호열에 있어서의 동일 길이의 스페이스 기록시에 적어도 2종류의 기록파형을 발생하는 기록에너지 조사수단을 포함하고,마크형성기간 동안에 상기 기록파형의 상엔벌로프가 마크형성기간의 개시시부터 시간경과에 따라서 저하하는 것을 특징으로 하는 정보기록장치.
- 기록매체에 에너지를 조사하는 것에 의해서 매체에 국소적인 물리적변화를 일으켜 데이타를 기록하는 정보기록장치에 있어서,기록부호열에 있어서의 동일 길이의 스페이스 기록시에 적어도 2종류의 기록파형을 발생하는 기록에너지 조사수단을 포함하고,마크형성기간 동안에 상기 기록파형의 하엔벌로프가 마크형성기간의 개시시부터 시간경과에 따라서 저하하는 것을 특징으로 하는 정보기록장치.
- 삭제
- 기록매체에 에너지를 조사하는 것에 의해서 매체에 국소적인 물리적변화를 일으켜 데이타를 기록하는 정보기록장치에 있어서,기록부호열에 있어서의 동일 길이의 스페이스 기록시에 적어도 2종류의 기록파형을 발생하는 기록에너지 조사수단과,상기 기록파형을 제어하는 기준시간을 발생하는 기준시간 발생수단을 포함하고,상기 각 기록에너지 레벨의 유지시간은 상기 기준시간의 대략 정수배 또는 상기 기준시간의 대략 반기수배인 것을 특징으로 하는 정보기록장치.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 기록매체에 에너지를 조사하는 것에 의해서 기록매체에 국소적인 물리적변화를 일으켜 정보의 기록을 실행하는 정보기록방법으로서,기록부호열에 있어서의 동일 길이의 스페이스 기록시에, 펄스의 높이 및 펄스 조사 타이밍이 다른 적어도 2종류의 기록파형을 이용해서 정보를 기록하는 것을 특징으로 하는 정보기록방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-1996-00347143 | 1996-12-26 | ||
JP34714396 | 1996-12-26 | ||
KR1019970069751A KR100498623B1 (ko) | 1996-12-26 | 1997-12-17 | 정보기록장치 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970069751A Division KR100498623B1 (ko) | 1996-12-26 | 1997-12-17 | 정보기록장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100522314B1 true KR100522314B1 (ko) | 2005-10-18 |
Family
ID=18388209
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970069751A Expired - Lifetime KR100498623B1 (ko) | 1996-12-26 | 1997-12-17 | 정보기록장치 |
KR1020020072646A Expired - Lifetime KR100522314B1 (ko) | 1996-12-26 | 2002-11-21 | 정보기록장치 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970069751A Expired - Lifetime KR100498623B1 (ko) | 1996-12-26 | 1997-12-17 | 정보기록장치 |
Country Status (7)
Country | Link |
---|---|
US (6) | US6104685A (ko) |
EP (1) | EP0851413B1 (ko) |
JP (2) | JP3608926B2 (ko) |
KR (2) | KR100498623B1 (ko) |
CN (4) | CN1111846C (ko) |
DE (1) | DE69731364T2 (ko) |
TW (1) | TW379323B (ko) |
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Also Published As
Publication number | Publication date |
---|---|
KR100498623B1 (ko) | 2005-09-30 |
CN1681010A (zh) | 2005-10-12 |
US6188658B1 (en) | 2001-02-13 |
CN100535997C (zh) | 2009-09-02 |
US6430132B1 (en) | 2002-08-06 |
US20020041558A1 (en) | 2002-04-11 |
CN1320528C (zh) | 2007-06-06 |
KR19980064227A (ko) | 1998-10-07 |
CN1111846C (zh) | 2003-06-18 |
US6104685A (en) | 2000-08-15 |
EP0851413A3 (en) | 1999-08-18 |
JPH10241164A (ja) | 1998-09-11 |
EP0851413A2 (en) | 1998-07-01 |
CN1186297A (zh) | 1998-07-01 |
JP3806714B2 (ja) | 2006-08-09 |
EP0851413B1 (en) | 2004-10-27 |
US6404716B1 (en) | 2002-06-11 |
US6529466B2 (en) | 2003-03-04 |
CN1450534A (zh) | 2003-10-22 |
JP2004087125A (ja) | 2004-03-18 |
TW379323B (en) | 2000-01-11 |
CN1516120A (zh) | 2004-07-28 |
US6512726B2 (en) | 2003-01-28 |
DE69731364T2 (de) | 2006-02-02 |
JP3608926B2 (ja) | 2005-01-12 |
DE69731364D1 (de) | 2004-12-02 |
US20020041553A1 (en) | 2002-04-11 |
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