发明名称 |
Recording/reproducing apparatus and method |
摘要 |
An information recording/reproducing apparatus wherein exact reproduction of both wobbled address information and sync information can be realized in a recording mode as well as in a reproduction mode. The apparatus comprises first and second detectors for detecting two diametrical side portions of each track on a recording medium where a pregroove is modulated correspondingly to address information and sync information of mutually different frequency bands; a calculator for calculating a normalized track information signal on the basis of the outputs of the first and second detectors; and a third detector for detecting the address information and/or the sync signal on the basis of the output of the calculator.
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申请公布号 |
US6147945(A) |
申请公布日期 |
2000.11.14 |
申请号 |
US19990378679 |
申请日期 |
1999.08.20 |
申请人 |
SONY CORPORATION |
发明人 |
KOBAYASHI, SHOEI;TAKEDA, TORU;YAMAGAMI, TAMOTSU |
分类号 |
G11B7/00;G11B7/005;G11B7/007;G11B20/12;G11B27/19;G11B27/30;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
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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