19-2 Proposal of Information Broadcasting Services Using Audio Watermarks

Abstract

We have proposed a novel audio watermarking technology, which features nearly lossless embedding, robustness against lossy data compression or analogue conversion, and enables contactless asynchronous detection of embedded watermarks through speaker and microphone devices. Using this audio watermark technology, we propose an application for information broadcasting services, which features distributing digital information through traditional analogue broadcasting or recording infrastructures.