KR20070028494A - 광기록 매체에 워블을 형성하는 방법 및 데이터 기록/재생장치 - Google Patents
광기록 매체에 워블을 형성하는 방법 및 데이터 기록/재생장치 Download PDFInfo
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- KR20070028494A KR20070028494A KR1020070011829A KR20070011829A KR20070028494A KR 20070028494 A KR20070028494 A KR 20070028494A KR 1020070011829 A KR1020070011829 A KR 1020070011829A KR 20070011829 A KR20070011829 A KR 20070011829A KR 20070028494 A KR20070028494 A KR 20070028494A
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Abstract
Description
파라미터 | 조건 |
파장(nm) | 400 |
개구수(NA) | 0.65/0.85 |
최소마크길이(㎛) | 0.275/0.194 |
변조 | EFM+ |
트랙피치(㎛) | 0.30, 0.34, 0.38 |
반사율(%) | Rc = 25, Ra = 5 |
항목 | 요인 | 예 |
이중 기록층 | 제1기록층의 구조 | 그루브, 피트... |
높은 개구수 (High NA) | 빔에 걸치는 트랙수 | NA 0.65:85트랙→NA 0.85:160트랙 |
입사빔 각도 | NA 0.65:40.5°→NA 0.85:58.2° |
Claims (12)
- 사용자 데이터 영역 및 리드아웃 영역을 포함하는 광기록 매체에 워블을 형성하는 방법으로서,상기 사용자 데이터 영역 및 리드아웃 영역에 그루브와 랜드를 형성하는 단계;상기 그루브의 적어도 일측면에 워블을 형성하는 단계;상기 리드아웃 영역의 워블 특성을 상기 사용자 데이터 영역의 워블 특성과 다르게 형성하는 단계;를 포함하는 것을 특징으로 하는 광기록 매체 워블 형성 방법.
- 제 1항에 있어서, 상기 리드아웃 영역의 워블은,상기 사용자 데이터 영역에서의 워블의 주파수, 주기, 진폭, 위상 중 적어도 어느 하나를 변조하여 형성된 것을 특징으로 하는 광 기록 매체 워블 형성 방법.
- 제 1항에 있어서,상기 사용자데이터 영역의 워블은 주파수변조, 주기변조, 진폭변조, 위상변조, HWM 변조 및 워블부와 비워블부의 혼합변조 중 적어도 어느 하나의 변조방식이 적용되고, 상기 리드아웃 영역의 워블은 상기 사용자데이터 영역의 워블과 다른 변조 방식이 적용되어 기록 및/또는 재생시 픽업이 데이터 영역 밖으로 나가지 않도 록 된 것을 특징으로 하는 광기록 매체 워블 형성 방법.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서, 상기 워블은 어드레싱 정보 또는 기준시간정보(PLL)를 포함하는 것을 특징으로 하는 광기록 매체 워블 형성 방법.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서, 상기 사용자데이터 영역과 리드아웃 영역의 그루브에서 읽혀진 신호의 싱크패턴이 서로 다른 것을 특징으로 하는 광기록 매체 워블 형성 방법.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서, 상기 광기록 매체의 최외주부에 소정의 기록 패턴을 기록하여 기록 및/또는 재생시 픽업이 데이터 영역 밖으로 나가지 않도록 하는 것을 특징으로 하는 광기록 매체 워블 형성 방법.
- 사용자 데이터 영역 및 리드아웃 영역을 포함하는 광기록 매체에 데이터를 기록/재생하는 장치에 있어서,광기록 매체에 레이저빔을 조사하는 광원을 포함하는 광픽업부;광기록 매체에서 반사된 상기 레이저빔을 이용하여 상기 리드아웃 영역의 워블 특성과 상기 사용자 데이터 영역의 워블 특성이 다른 것을 검출하는 검출부;를 포함하는 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
- 제 7항에 있어서, 상기 리드아웃 영역의 워블은,상기 사용자 데이터 영역에서의 워블의 주파수, 주기, 진폭, 위상 중 적어도 어느 하나를 변조하여 형성된 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
- 제 7항에 있어서,상기 사용자데이터 영역의 워블은 주파수변조, 주기변조, 진폭변조, 위상변조, HWM 변조 및 워블부와 비워블부의 혼합변조 중 적어도 어느 하나의 변조방식이 적용되고, 상기 리드아웃 영역의 워블은 상기 사용자데이터 영역의 워블과 다른 변조 방식이 적용되어 기록 및/또는 재생시 픽업이 데이터 영역 밖으로 나가지 않도록 된 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
- 제 7항 내지 제 9항 중 어느 한 항에 있어서, 상기 워블은 어드레싱 정보 또는 기준시간정보(PLL)를 포함하는 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
- 제 7항 내지 제 9항 중 어느 한 항에 있어서, 상기 사용자데이터 영역과 리드아웃 영역의 그루브에서 읽혀진 신호의 싱크패턴이 서로 다른 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
- 제 7항 내지 제 9항 중 어느 한 항에 있어서, 상기 광기록 매체의 최외주부에 소정의 기록 패턴을 기록하여 기록 및/또는 재생시 픽업이 데이터 영역 밖으로 나가지 않도록 하는 것을 특징으로 하는 광기록 매체의 기록/재생 장치.
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Application Number | Priority Date | Filing Date | Title |
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KR1020010034377 | 2001-06-18 | ||
KR20010034377 | 2001-06-18 |
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EP (1) | EP1271491A3 (ko) |
JP (4) | JP2003006877A (ko) |
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CN (3) | CN1555062A (ko) |
BR (1) | BR0201923A (ko) |
CA (1) | CA2390803C (ko) |
HK (1) | HK1049543B (ko) |
MX (1) | MXPA02005939A (ko) |
MY (2) | MY141854A (ko) |
RU (1) | RU2231831C2 (ko) |
SG (3) | SG116450A1 (ko) |
TW (1) | TW583650B (ko) |
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