发明名称 ULTRASOUND DETECTORS
摘要 <p>A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone (4) having its greatest response below 20 kilohertz or a microphone (4) adapted for human speech reception; and decoding said signal to determine said data.</p>
申请公布号 EP2188922(A2) 申请公布日期 2010.05.26
申请号 EP20080788388 申请日期 2008.08.20
申请人 SONITOR TECHNOLOGIES AS 发明人 BOOIJ, WILFRED, EDWIN;WELLE, KNUT, OSVALD
分类号 H04L27/144;H04B11/00;H04L27/156 主分类号 H04L27/144
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