发明名称 |
VIDEO SIGNAL PROCESSOR |
摘要 |
PROBLEM TO BE SOLVED: To solve a problem that an original video can freely be copied even when copying of a video software is prohibited because copying information is omitted in the case of performing the format conversion of a video signal in a conventional video signal processor. SOLUTION: The video signal processor is provided with a replacing signal generation circuit 3 for outputting a video signal for preventing copying and a selector which properly carries out switching of the video signal when the copying control information instructs inhibition of copying a video format conversion circuit 2 and which replaces a part or all of video signals being a main video inputted from a video format conversion circuit 2 with the video signal inputted from the circuit 3. |
申请公布号 |
JP2002232803(A) |
申请公布日期 |
2002.08.16 |
申请号 |
JP20010024631 |
申请日期 |
2001.01.31 |
申请人 |
MITSUBISHI ELECTRIC CORP;HITACHI LTD |
发明人 |
TANAKA KAZUHIKO;HARATANI ATSUSHI;MACHIDA YOSHIHIRO;OKAYAMA YUKO;MORINO TOKAI |
分类号 |
G06F21/24;H04N5/445;H04N5/91;H04N7/173;(IPC1-7):H04N5/445 |
主分类号 |
G06F21/24 |
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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