In addition, the digital imaging technology patent protection are invalidated.
此外，人们对数字成像技术的专利保护也已经开始失效。
The main research aim of digital watermark is copyright protection.
数字水印的主要研究目的是版权保护。
Text information hiding technology is applied in protection of copyright and integrity of digital media.
文本信息隐藏技术可应用于数字媒体版权和完整性保护。
Digital signature for the secure transmission of information network provides an effective protection.
数字签名技术为网络中信息的安全传输提供了有效的保障。
Digital watermarking is an effective method of copyright protection.
数字水印为数字媒体版权保护的有效方法。
Digital watermarking is an effective method of copyright protection.
数字水印为数字媒体版权保护的有效方法。
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