发明名称 |
System zur Kodierung digitaler Daten |
摘要 |
A digital data encode system for inserting water mark data into digital data signals having a series of field data by use of a water mark data inserting device (140), said digital data encode system comprising a field judging unit (120) dividing the digital data signals by a predetermined reference, a water mark data selection output unit (130) for selecting proper one of a plurality of different water mark data prepared correspondingly to the division according to the judgement result of the field judging unit (120), and a water mark data inserting device (140) for inserting the water mark data supplied from the water mark data selection output unit (130) into the digital data signals. <IMAGE> |
申请公布号 |
DE69840308(D1) |
申请公布日期 |
2009.01.22 |
申请号 |
DE1998640308 |
申请日期 |
1998.02.20 |
申请人 |
NEC CORP. |
发明人 |
SATOH, SHINOBU;WAKASU, YUTAKA |
分类号 |
H04N5/913;G06T1/00;H04N7/26;H04N7/50 |
主分类号 |
H04N5/913 |
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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