| 发明名称 |
VIDEO RECORDING PREVENTION SYSTEM |
| 摘要 |
A projector has at least four primary color components controlled to produce a metameric effect image which is not perceptible to the human optical system and is perceptible to a video recording device.
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| 申请公布号 |
US2010104260(A1) |
申请公布日期 |
2010.04.29 |
| 申请号 |
US20080452308 |
申请日期 |
2008.02.19 |
| 申请人 |
THOMSON LICENSING |
发明人 |
YOON YOUNGSHIK;BOURDON PASCAL;BLONDE LAURENT;DOYEN DIDIER |
| 分类号 |
H04N5/91 |
主分类号 |
H04N5/91 |
| 代理机构 |
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