KR100269133B1 - 광디스크의 헤더 신호 판독방법 - Google Patents
광디스크의 헤더 신호 판독방법 Download PDFInfo
- Publication number
- KR100269133B1 KR100269133B1 KR1019970066755A KR19970066755A KR100269133B1 KR 100269133 B1 KR100269133 B1 KR 100269133B1 KR 1019970066755 A KR1019970066755 A KR 1019970066755A KR 19970066755 A KR19970066755 A KR 19970066755A KR 100269133 B1 KR100269133 B1 KR 100269133B1
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- KR
- South Korea
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Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
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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
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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
- G11B7/007—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
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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
- G11B7/007—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
- G11B7/00745—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
- G11B7/13—Optical detectors therefor
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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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
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- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (1)
- 기록 가능한 랜드(L)와 그루브(G)를 갖는 다수의 트랙을 가지며, 각 트랙 중심에 대해 내주 방향으로 1/2 트랙피치만큼 쉬프트되게 위치된 제1헤더와, 상기 각 트랙 중심에 대해 외주 방향으로 1/2 트랙피치만큼 쉬프트되게 위치된 제2헤더를 구비한 광디스크의 헤더신호를 판독하는 방법에 있어서,상기 트랙 중심에 대해 내,외주 방향으로 1/2 트랙피치만큼 떨어진 위치에 각각 제1 및 제2광빔을 조사하는 단계와;상기 트랙에서 각각 반사된 제1 및 제2광빔으로부터 제1 및 제2헤더의 위치를 검출하는 단계와;상기 제1 및 제2헤더의 위치를 비교하여 헤더신호를 판독하는 단계;를 포함하는 것을 특징으로 하는 광디스크의 헤더신호 판독방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970066755A KR100269133B1 (ko) | 1997-12-08 | 1997-12-08 | 광디스크의 헤더 신호 판독방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970066755A KR100269133B1 (ko) | 1997-12-08 | 1997-12-08 | 광디스크의 헤더 신호 판독방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990048139A KR19990048139A (ko) | 1999-07-05 |
KR100269133B1 true KR100269133B1 (ko) | 2000-10-16 |
Family
ID=19526716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970066755A KR100269133B1 (ko) | 1997-12-08 | 1997-12-08 | 광디스크의 헤더 신호 판독방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100269133B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008012985A1 (fr) | 2006-07-27 | 2008-01-31 | Mitsubishi Electric Corporation | Support de disque optique et dispositif à disque optique |
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1997
- 1997-12-08 KR KR1019970066755A patent/KR100269133B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR19990048139A (ko) | 1999-07-05 |
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