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2. 发明授权

US07257710B2 Additional-data embedding apparatus and additional-data embedding method 失效
标题翻译：附加数据嵌入装置和附加数据嵌入方法
公开(公告)号：US07257710B2
公开(公告)日：2007-08-14
申请号：US10223532
申请日：2002-08-19
申请人： Jun Hirai , Yoonki Choi
发明人： Jun Hirai , Yoonki Choi
IPC分类号： H04L9/00 , H04N7/167
CPC分类号： G06T1/0028 , G06T2201/0052
摘要： The present invention provides an additional-watermark embedding apparatus for embedding predetermined additional data into original data. The additional-watermark embedding apparatus includes an adder for summing the original data and the additional data, a first amplifier for amplifying the original data according to a predetermined non-linear input-output characteristic, a second amplifier for amplifying the summed data supplied from the adder according to a predetermined non-linear input-output characteristic, a subtractor for taking the difference between the amplified data obtained by the second amplifier and the amplified original data obtained by the first amplifier, and an embedder for embedding modified additional data which is obtained by modifying the waveform of the additional data according to the original data and which is supplied from the subtractor into the original data.
摘要翻译：一种用于将预定附加数据嵌入到原始数据中的附加水印嵌入装置。附加水印嵌入装置包括用于对原始数据和附加数据求和的加法器，用于根据预定的非线性输入输出特性放大原始数据的第一放大器，用于放大从加法器提供的加法数据的第二放大器，对于预定的非线性输入输出特性，用于获取由第二放大器获得的放大数据与由第一放大器获得的放大原始数据之间的差的减法器，以及嵌入器，用于嵌入通过修改波形获得的修改的附加数据的附加数据，并且从减法器提供给原始数据。

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