发明名称 |
COPY MANAGEMENT METHOD, COPY MANAGEMENT DEVICE, RECORDING MEDIUM AND PROGRAM |
摘要 |
PROBLEM TO BE SOLVED: To provide a copy management method or the like that can eliminate a problem due to a detection delay of control information. SOLUTION: The copy management method manages copying by embedding an electronic watermark denoting control information with respect to contents 1 and 2 comprising digital information, and electronic watermarks 1a, 2a include change position information denoting a change position of contents of the control information. |
申请公布号 |
JP2002271737(A) |
申请公布日期 |
2002.09.20 |
申请号 |
JP20010064008 |
申请日期 |
2001.03.07 |
申请人 |
PIONEER ELECTRONIC CORP |
发明人 |
KURODA KAZUO |
分类号 |
G06T1/00;G09C5/00;H04N1/387;H04N5/85;H04N5/91;H04N5/913;H04N5/92;H04N7/08;H04N7/081;(IPC1-7):H04N5/91 |
主分类号 |
G06T1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|