| Original document(130 pages) 中文版 |
Identifiers for both media and contents which are difference categories are stored in a revocation list, and also version information is set. Further, the list is capable of being set up in a memory interface, and can be continuously used at the time of mounting media and at the time of reproducing contents. Upon reading out contents, the version of the revocation list which the device holds is verified, and in the event that the version of the revocation list held is older, reading out of contents is cancelled. Also, the configuration allows unauthorized contents and unauthorized media to be revoked by performing collation with a media identifier at the time of mounting media, and collation with a contents identifier at the time of using contents. |
Application Number
申请号 |
01804335 |
Application Date
申请日 |
2001.10.19 |
| Title 名称 |
Data reproducing/recording apparatus, method and listupdating method |
Publication Number
公开号 |
1397123 |
Publication Date
公开日 |
2003.02.12 |
| Approval Pub. Date |
|
Granted Pub. Date |
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| International Classification 分类号 |
G11B20/10;G11B27/00;H04L9/00 |
Applicant(s) Name
申请人 |
Sony Corp. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Akishita Toru;Ishibashi Yoshihito;Yoshino Kenji |
| Attorney & Agent 代理人 |
huang xiaolin wang zhisen |
| More information 更 多 信 息 |
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