发明名称 |
Method of scanning a recording disc for defects, and recording device for recording information on a disc-shaped recording medium |
摘要 |
A method and a DVR video recorder (20) for recording real time video signals on a DVR disc (1) are described. The disc may exhibit two-dimensional spot defects (11; 12; 13) but the DVR error correction system is very powerful and is capable of correcting errors as a result of small spot defects (11; 12). In order to examine in a rapid and efficient manner whether the disc has large spot defects (13), the integrity of predetermined test tracks (2T) is assessed on the basis of the tracking signal. When a defective test track (2T2; 2T3) is found the proximity of said test track is examined further. If the number of affected tracks appears to be small, recording in these tracks is allowed; if the number of affected tracks appears to be large, these tracks are entered in a defect list, which is preferably recorded on the disc. During recording the tracks appearing in the defect list are skipped. |
申请公布号 |
AU6692500(A) |
申请公布日期 |
2001.02.05 |
申请号 |
AU20000066925 |
申请日期 |
2000.07.12 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
GIJSBERT J. VAN DEN ENDEN |
分类号 |
G11B20/10;G11B7/0037;G11B7/0045;G11B7/09;G11B20/12;G11B20/18 |
主分类号 |
G11B20/10 |
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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