发明名称 |
Data distribution system and recording device for use therein |
摘要 |
A memory card (110) stores access restriction information (AC1) to a license information hold unit (1440) arranged in a TRM area. Access restriction information (AC1) has information for example of a frequency of reproduction allowed and a number of licenses owned. A controller (1420) in reproducing and transferring content initially confirms access restriction information (AC1) and thereafter effects reproduction and transfer and after the reproduction and transfer are effected updates access restriction information (AC1), as required, for storage in a license information hold unit (1440). |
申请公布号 |
US7945517(B2) |
申请公布日期 |
2011.05.17 |
申请号 |
US20020148178 |
申请日期 |
2002.06.04 |
申请人 |
SANYO ELECTRIC CO., LTD.;FUJITSU LIMITED;RENESAS ELECTRONICS CORPORATION |
发明人 |
HORI YOSHIHIRO;HIOKI TOSHIAKI;KANAMORI MIWA;TAKAHASHI MASATAKA;HASEBE TAKAYUKI;YOSHIOKA MAKOTO;HATAKEYAMA TAKAHISA;TONEGAWA TADAAKI;ANAZAWA TAKEAKI |
分类号 |
H04L9/00;G06F1/00;G06F11/00;G06F21/00;G06F21/10;G06F21/31;G06F21/62;G06Q10/00;G06Q30/06;G06Q50/00;G06Q50/10;H04W4/06;H04W12/04;H04W12/06;H04W88/02 |
主分类号 |
H04L9/00 |
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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