发明名称 |
DEVICE AND METHOD FOR PROCESSING INFORMATION, REPRODUCING DEVICE AND METHOD AND PROGRAM STORAGE MEDIUM |
摘要 |
PROBLEM TO BE SOLVED: To prevent the unauthorized utilization of contents with a time limit. SOLUTION: When the contents with the time limit stored in a personal computer or the like are stored in the flash memory 80 of a portable device 6, time information T at the point of time is stored together as well. The time information T is also stored in an RTC 87 and the RTC 87 continuously updates the time information T with the time information T as a reference. The time information T updated by the RTC 87 is subscribed in the flash memory 80 as well at a prescribed timing. In the case that power supply from a dry cell 61 is temporarily stopped and the supply is restarted, the time information T stored in the flash memory 80 is supplied to the RTC 87 and the updating of the time information T is newly started with the supplied time information T as the reference. The time information T is used for managing the contents with the time limit. |
申请公布号 |
JP2002116960(A) |
申请公布日期 |
2002.04.19 |
申请号 |
JP20010207659 |
申请日期 |
2001.07.09 |
申请人 |
SONY CORP |
发明人 |
UKITA YOSHIAKI;IRIE KENJI |
分类号 |
G06F12/14;G06F12/16;G06F17/00;G06F21/10;G06F21/62;G10L19/00;H04H1/10 |
主分类号 |
G06F12/14 |
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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