发明名称 |
OPTICAL DISK WITH WOBBLED TRACKS AND APPARATUS USING THIS OPTICAL DISC |
摘要 |
Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the number of wobble waves and M=2N). The sync signal with such configuration (6 wobbles per bit) is recorded on the head side of the address information (12 wobbles per bit). In this way, even when external noise is large, a modulated wobble signal can be demodulated more accurately.
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申请公布号 |
US2007159955(A1) |
申请公布日期 |
2007.07.12 |
申请号 |
US20070689593 |
申请日期 |
2007.03.22 |
申请人 |
NAGAI YUJI;NODA CHOSAKU;OGAWA AKIHITO;KURODA KAZUTO |
发明人 |
NAGAI YUJI;NODA CHOSAKU;OGAWA AKIHITO;KURODA KAZUTO |
分类号 |
G11B7/24;G11B20/14;G11B7/00;G11B7/004;G11B7/005;G11B7/007;G11B20/02;G11B20/10;G11B20/12;G11B27/24 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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