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专利名称：Data embedding device, data embedding
method, data extraction device, and dataextraction method
发明人：Hosei Matsuoka申请号：US11913849申请日：20060707公开号：US08428756B2公开日：20130423
专利附图：
摘要：A data embedding device has: a phase adjusting unit for adjusting a phase of anacoustic signal in accordance with a frame unit in which arbitrary transmission data is to be
embedded; and a combining unit for embedding the transmission data in the phase-adjusted acoustic signal. A data extraction device has: a removing unit for removing a lowfrequency component from an acoustic signal in which arbitrary transmission data isembedded, to generate a low-frequency-removed acoustic signal; a synchronizing unitfor synchronizing the low-frequency-removed acoustic signal generated by the removingunit, in accordance with a frame unit used when the transmission data was embedded inthe acoustic data; and an extraction unit for extracting the transmission data from thelow-frequency-removed acoustic signal synchronized by the synchronizing unit.
申请人：Hosei Matsuoka
地址：Yokosuka JP
国籍：JP
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
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