Invention Grant
US08972246B2 Method of embedding digital information into audio signal machine-readable storage medium and communication terminal 有权
将数字信息嵌入到音频信号机器可读存储介质和通信终端中的方法

Method of embedding digital information into audio signal machine-readable storage medium and communication terminal
Abstract:
A method for embedding digital information into an audio signal, is provided. The method includes dividing the digital information into low-priority data and high-priority data; dividing the audio signal into first and second signal parts; embedding at least one echo signal into the first signal part; embedding a communication signal modulated with low-priority data, which has a spectrum according to psychoacoustic analysis of the second signal part, into the second signal part; and combining the embedded first and second signal parts.
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