Altera 2006年Nios II 嵌入式处理器设计大赛 Nios II Processor-Based Remote Portable Multifunction Logic Analyzer Second Prize Digital Watermark-Based Trademark Checker Institution: Institute of Information Science, Beijing JiaoTong University Participants: Sheng-Kai Song, Wei-Ming Li, and Li Song Instructor: Xiao-Ming Ding Design Introduction A digital watermark adds undetectable identification information to a digital product that can be verified with certain algorithms. Using watermarking to prevent counterfeit printing is of great significance for social development. Digital watermark-based anti-counterfeit technology is different from traditional anti-counterfeit techniques and has its own features: it is imperceptible, unambiguous, robust, secure, advanced, a……