4) 版权标记(Copyright marking):主要包括水印技术(Watermarking)和指纹 (Finger printing)，而水印又分脆弱性水印(Fragile watermarking)和鲁棒性水印 (Robust ...
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It estimates that the millions of copyright-free works in its database will be labeled with the Public Domain Mark by the middle of next year.
据估算，图书馆数据库中数百万无版权限制的作品，将在明年年中之前打上公有领域标志的烙印。
PATENTS, trade MARKS, ETC. : the Sellers shall be held free from any dispute regarding the infringements of patent, design, trade mark or copyright of the goods contracted for.
专利、商标等：卖方应免受有关侵犯合约所定货物的专利、设计、商标或版权等纠纷的干扰。
Digital watermark is invisible mark embedded in digital image, video or audio documents, by detecting the information of watermarking to protect copyright of multimedia data.
数字水印是一种嵌入到图像、视频或者音频数据中的不可见标志，通过对水印信息的检测可以达到保护多媒体数据版权的目的。
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