Hyuncheol Kang

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In this paper, we present a technique for embedding digital watermarks into digital audio signals. Watermarking is a technique used to label digital media by hiding copyright or other information in the underlying data. In the case of digital audio, the main constraint is the tradeoff between robustness and imperceptibility, as hearing is one of the most(More)
This paper describes intelligent operation monitoring IoT tags for factory legacy device. These days factory devices almost contain monitoring system in network. But there are lots of legacy devices which do not support any monitoring sensors and network system yet. The intelligent IoT tag contains 4 types of sensors; three dimensional accelerometer,(More)
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