KR100868827B1 - 광디스크 매체, 정보 재생 방법 및 장치, 광디스크 기록 장치 - Google Patents
광디스크 매체, 정보 재생 방법 및 장치, 광디스크 기록 장치 Download PDFInfo
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Abstract
Description
Claims (19)
- 트랙 그루브를 갖고, 상기 트랙 그루브를 따라서 소정 길이의 블럭 단위마다 정보가 기록되는 광디스크 매체로서,상기 소정 길이의 블럭 단위는 그루브를 따라서 배열된 복수의 서브블럭을 갖고 있고,상기 서브블럭에는 식별 가능한 서브블럭 마크가 마련되고,상기 서브블럭에서의 상기 트랙 그루브는 상기 블럭 단위의 어드레스 정보 중 1비트를 나타내는 정보에 따라 상승 에지 또는 하강 에지가 급준하는 톱니파 형상의 워블 형상을 갖고 있는광디스크 매체.
- 제 1 항에 있어서,상기 트랙 그루브에는 주기적인 사행(蛇行)이 마련되어 있고, 상기 서브블럭 마크가 상기 사행의 위상을 변화시키는 것에 의해 형성되어 있는 광디스크 매체.
- 제 1 항에 있어서,상기 트랙 그루브에는 주기적인 사행이 마련되어 있고, 상기 서브블럭 마크에는 다른 부분과는 다른 주파수의 사행이 할당되어 있는 광디스크 매체.
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- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,상기 서브블럭 마크에는 상기 트랙 그루브의 사행의 형상에 의해서 나타내어지는 정보와 동일한 정보가 기록되어 있는 광디스크 매체.
- 청구항 6에 기재된 광디스크 매체로부터 어드레스를 나타내는 정보를 재생하는 정보 재생 방법으로서,상기 트랙 그루브의 사행에 근거하여 검출되는 재생 신호에 동기하는 제 1 동기 신호로서, 상기 재생 신호의 기본 주파수와 동일한 주파수를 갖는 제 1 동기 신호를 생성하고, 상기 제 1 동기 신호를 상기 재생 신호에 승산하는 단계(a)와,상기 재생 신호에 동기한 제 2 동기 신호로서, 상기 재생 신호의 기본 주파수의 2배인 주파수를 갖는 제 2 동기 신호를 생성하고, 상기 제 2 동기 신호를 상기 재생 신호에 승산하는 단계(b)와,상기 단계(a) 및 단계(b)의 승산 결과를 적분하는 단계(c)와,상기 단계(c)에서의 적분 결과와 사전 설정된 임계값을 비교하여, 어드레스를 나타내는 정보를 결정하는 단계(d)를 포함하는 정보 재생 방법.
- 청구항 6에 기재된 광디스크 매체로부터 어드레스를 나타내는 정보를 재생하는 정보 재생 장치로서,트랙 그루브의 사행에 근거하여 검출되는 재생 신호에 동기하는 제 1 동기 신호로서, 상기 재생 신호의 기본 주파수와 동일한 주파수를 갖는 제 1 동기 신호를 상기 재생 신호에 승산하는 제 1 승산기와,상기 재생 신호에 동기한 제 2 동기 신호로서, 상기 재생 신호의 기본 주파수의 2배인 주파수를 갖는 제 2 동기 신호를 상기 재생 신호에 승산하는 제 2 승산기와,상기 제 1 승산기 및 제 2 승산기의 출력을 적분하는 적분 수단과,상기 적분 수단의 출력값과 사전 설정된 임계값을 비교하여, 어드레스를 나타내는 정보를 결정하는 수단을 구비하는 정보 재생 장치.
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- 트랙 그루브를 갖는 광디스크 매체에, 상기 트랙 그루브를 따라 소정 길이의 블럭 단위마다 정보를 기록하는 광디스크 기록 장치로서,상기 광디스크 매체에서의 상기 소정 길이의 블록 단위는, 그루브를 따라 배열된 복수의 서브블럭을 갖고 있고,상기 광디스크 매체에서의 서브블럭에는 식별 가능한 서브블럭 마크가 마련되고,상기 광디스크 매체에서의 서브블럭에서의 상기 트랙 그루브는 상기 블럭 단위의 어드레스 정보 중 1비트를 나타내는 정보에 따라 상승 에지 또는 하강 에지가 급준하는 톱니파 형상의 워블 형상을 갖고,상기 광디스크 매체에서의 상기 트랙 그루브로부터 상기 서브블럭마다 1비트의 어드레스 정보를 재생하는 유닛을 구비한광디스크 기록 장치.
- 제 17 항에 있어서,상기 트랙 그루브에는 주기적인 사행이 마련되어 있고, 상기 서브블럭 마크가 상기 사행의 위상을 변화시키는 것에 의해 형성되어 있는 광디스크 기록 장치.
- 제 17 항에 있어서,상기 트랙 그루브에는 주기적인 사행이 마련되어 있고, 상기 서브블럭 마크에는 다른 부분과는 상이한 주파수의 사행이 할당되어 있는 광디스크 기록 장치.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2001-00185729 | 2001-06-20 | ||
JP2001185729 | 2001-06-20 | ||
JP2001212071 | 2001-07-12 | ||
JPJP-P-2001-00212071 | 2001-07-12 | ||
JPJP-P-2001-00348306 | 2001-11-14 | ||
JP2001348306 | 2001-11-14 |
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KR1020080048852A Division KR100892481B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 매체 및 광디스크 기록 장치 |
KR1020080048851A Division KR100887037B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 재생 장치 |
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KR20020096996A KR20020096996A (ko) | 2002-12-31 |
KR100868827B1 true KR100868827B1 (ko) | 2008-11-14 |
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KR1020020034250A KR100868827B1 (ko) | 2001-06-20 | 2002-06-19 | 광디스크 매체, 정보 재생 방법 및 장치, 광디스크 기록 장치 |
KR1020080048852A KR100892481B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 매체 및 광디스크 기록 장치 |
KR1020080048851A KR100887037B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 재생 장치 |
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KR1020080048852A KR100892481B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 매체 및 광디스크 기록 장치 |
KR1020080048851A KR100887037B1 (ko) | 2001-06-20 | 2008-05-26 | 광디스크 재생 장치 |
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US (7) | US6724708B2 (ko) |
EP (3) | EP1473730B1 (ko) |
JP (1) | JP4406665B2 (ko) |
KR (3) | KR100868827B1 (ko) |
CN (2) | CN100468530C (ko) |
DE (2) | DE60213877T2 (ko) |
HK (1) | HK1105544A1 (ko) |
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